We live in Florida and get cloudy / rainy days more then you would think. We figured our battery backup for 22kw system (ac is not on battery backup). Instead of adding more batteries we decided to double our solar panel for those cloudy days. This was cheaper and has worked out. Thanks for your videos.
Well just remember to pay attention to the maximum charge rate of your batteries as people often overlook the fact that you can only push so much power into your battery at any given time. I have seen contractors void the warranty and destroy batteries because they drove too much current into them.
Good solution if you have the room. I have noticed it is vary rarely that I have zero production. Even most overcast days I still get significant production.
I have 4kw solar with a single Power Wall. Here on the California coast they supply all my electricity needs the vast majority of time. I do have a heat pump backed up by a Natural gas furnace, gas range, gas hot water and gas dryer. As my appliances need replacement I am switching out for all electric. Next purchases are a heat pump hot water heater, and then an induction range. Presently I use only about a third of the power I produce. I don’t have room on my roof for anymore solar panels and being in a condo I don’t have an area to ground mount them. So I will have to work within my 4kw production envelope.
This is by far the BEST video, because you actually brought out an appliance that is often used in a household and told us exactly how it would drain the battery…incredible and I am incredibly grateful for your channel! ♾💎✨
We live off a 15kw 24v system. It runs everything we need, but we only run a 110v water transfer pump, fridge, chest freezer, and lights everyday. We do have a microwave, rice cooker, Xbox and TV, but we only use those durring the day or when the generator is running. Our house is heated with a woodstove, and we use propane for a tankless water heater and stove/oven. Been living off grid for 5 years up here in Alaska, and started off with a 2kw battery bank, and slowly been upgrading as the years go by.
I installed an Emporia energy monitor system before installing solar. It gives a very accurate understanding of energy usage. I like that you can look at loads in amps, watts or cost. They make a 16 circuit or 8 circuit monitor but it does have sensors to monitor total panel loads.
@@CountryLivingExperience I know at my house with my emporia energy monitor my second highest using device behind ac was the water heater. So I have since replaced with a heat pump style water heater. I put it in my garage cools my garage down and costs a third to run over conventional should go a long way helping your batteries go further.
we have a switch to turn on our hot water heater. We turn it on 15 mins before taking a shower and its hot and good for about two showers. it also lengthens the life of your hot water heater.
I live in the mountains of Arizona 6800 feet. I am totally off grid. I have 15000 watts of solar panels, solark 12, 30 kwh of lithium batteries. I run a 44000 btu mini split, hot water heater, freezer and refrigerator. sometimes my large harvest right freeze dryer. I bought emporia monitoring system. I love it! I know exactly what everything is using , there is an ap and no fees. It would be perfect for someone wanting to do solar. I love your videos, thank you.
Great video, here’s a few ideas. Rather than a huge battery bank consider a 48v DC water cooled generator that can run at night to charge the batteries and use the heat for either DHW or heating a hot water coil to heat your house. If the grid is down your prepared 100% even if you get a week of clouds without spending a fortune on batteries. Secondly get a heat pump DHW heater which will use 1/3 of the energy and replace the bottom element with a DC ELEMENT and run a few panels directly too it reducing your energy consumption even further.
Thank you for posting. We are currently configuring an off grid power system in Northern Nevada. I have saved this video for future reference. We will have a generator back up so we will have ability to charge when the sun is not producing power through the solar array(s).
I learn a ton from your videos. Just installing my system now. I have 20 solar panels and luckily a micro hydro system that makes about 3kw continuous . I have 6 LifePo4 batteries. Hopefully I’m good to go
@@av1204 Many areas in the contiguous 50 states only get 5 hours, on average, of prime sunlight that produces electricity from solar panels. So 3 kwh X 5 is only 15 kwh of power generation per day. ;)
I added mine up, factored in a week of autonomy, and I need a shocking amount of batteries and solar panels. I got 2 eg4-LL's (v2) and 1 6500ex inverter + the 6 slot rack. $5500 for a bit of battery backup to start, and I'll add solar and more batteries as I go. Our main power plant is now shut down and they say we'll have blackouts this summer. Wish me luck.
@@CountryLivingExperience Good luck: all of our main power plants may soon die, in which case we all must be self-(solar) powered. So it seems.I am nowhere near that, as yet in S Louisiana.
I would encourage you to look into Emporia Energy (or something similar) to monitor each breaker for energy use. I love mine and it allows me to track each circuit in my system!
Great information for sure. Being East Texas bread, born and raised Texarkana. However living on lake Whitney, I still make the trip to Signature Solar to pick up my solar needs. You living very close by about 45 minutes I believe. Thanks for the great video, have a wonderful week. God Bless in all you do.
I have also been on my own DIY Journey and built my system out this summer (My house is 100% electric), I'm in Upstate SC, so Helene had me off-grid for 7 days. I have 500AH of Lipo4 and 2 EG4-6000XP's, and 12K of solar. Battery management became high-priority on day 2 (as I woke up in a sweat at 1:20am from poor planning) I decided to drop both my chest freezers to 0 fahrenheit, and put timers on them so they were off from 10pm to 10am, neither went higher than 13 by morning. Also I've put a wrap blanket on my electric water heater and manually shut it off on the same schedule (I'm installing a timer this weekend) Always had enough hot water, and all I wanted during solar hours, we are a family of 3 (I'm fortunate and was getting 7 good sun hours every day) I ran my 12K generator with a Chargeverter every night from 8pm to 12am (or as needed) for 100% battery every night, ran 3 mini-splits every night and had enough battery left that solar could take over in the morning. It was an awesome acid test of "What will it take for me to go 100% off-grid" Now getting into winter sun, I know I'm going to overpanel significantly (at least double my current array) and quadruple my battery. My biggest lesson was "You better use or store that solar during peak sun" (I always made more than I could use or store) So Laundry, Cooking, etc was NOT a nighttime event. I installed my system to cut my utility bills initially, but now my goal is to disconnect the grid. I've gone this far, might as well do it.
Just starting my OFF GRID life, have a small solar system for my Tiny house. 10Kwat of starage and 1.2Kwatts of panels., that dosen't cut it. I suspect I will need 20 Kwatts of storage and 6 Kwatts of solar panels for those winter days. My night time load is about 1.5 Kwatts. I do have a small electric watter heater and I placed a power switch and I only turn it on during the day for about 20 min as needed; works well. I will check out those calculators you suggested. Thx!
Thx a lot for all your efforts & congratulations on your set up. I only needed 2 batteries, but I decided to get 4 anyway. Because I got the best. The Discover AES 42-48-6650 gives me 6,650 amp per hour per battery. I will never run out of amp
AC, heat, and water heater are the biggest hits to your daily energy use. I only have 11kwh of lifepo4 batteries. However it’s just for outages, we are on grid. We only need it for cooking and keeping freezers running.
You did a great job explaining I am currently putting together my solar system components and like you I don't have deep pockets it is a pay as you go project. But calculating load requirements can be a huge pain simply because as you stated there are so many variables we cannot control. But you did well explaining in layman's terms we can all understand. Thanks
Thank you. Glad it was helpful. I did order one of the Emporia monitoring systems so I can better understand the loads. I’ll do a review on it once I study my loads for a few weeks.
I just ordered a 13000 watt system and have been watching these videos to gain information. My utility (FPL in Florida) installed a smart meter on my home several years ago. I can research my past usage. Last year in July I used 39 kWh a day. This year is much hotter and I am using 42 kWh a day. I am getting 11000 watts of panels so I should have enough power. I am getting 20 kWh of batteries so I will have to watch my night time usage.
We had a timer switch installed on our hot water heater. We have a family of three and we let it run for four hours every day. That gives us enough hot water for all to take showers and wash dishes. If we need more we can change it to be on longer or shorter.
For energy monitoring I got Emporia Smart Home system. I still need to get one for my main panel and one for my workshop that's hybrid solar system. Another thing that we did was got a hybrid solar water heater. Uses 400 watts most of the time to heat the water. The main energy user is our whole house heat pump - non-geo thermal. 2 ton at 4k watts heating about 2k cooling. And yes, it is a cycle of getting more batteries and more panels. Till the system has grown to acceptable off-grid for the majority of the time. Regardless, the electric bill will decrease each time.
I HIGHLY recommend in buying 2.5-3.5x more solar KWH then what your daily consumption is to Help maintain enough energy being put into your battery bank storage and into your home that even when cloudy theres still enough energy getting to your home use and keeping your batteries charged
Jeez... Last year we used 5,5 kWh (on average) per day (that's 24 hrs, that is) with a two person household in a (approx.) 140 square meter (1507 sq ft) house, here in Spain. So we have one 4.8 kWh (100amp) Pylontech battery. Pretty good. Nice video, thnx for sharing.
I am a pensioner in South Africa where we have frequent power outages called "load shedding" so I put together a 24v 50ah lifepo4 battery with a 100v 20a solar charge controller and a 3000w inverter and 400w solar panels to help with my fridges and freezer during the day, at night I only run the 2 small fridges for about 4 hours during load shedding. Now I am planning a 24v 3000w system with a 24v 100ah lifepo4 battery and 920w solar. Later I plan to upgrade this second system batteries to 24v 200ah and the again to 300ah. I happen to be an electrician as well.
Best Video I,ve seen about explaining these things BEST!!! Awesome work i will deff subscribe. I have a 6kw system here in Jamaica 2 Lithium batteries each 7.5kw 150 AH.
According to my Emporia Vue, my home consumes between 37kW and 42kW/day, every day (about 1,400kW/month). I would be draining and depleting this entire rack of batteries Day 1, and then take 7 days of 3-4 solar hours per-day to fill it back up again. Using the calculator at the altestore, it shows I will need 48 x 500W panels just to cover my current monthly load. I don't have the rooftop acreage to even come close to bring in the 23kW system needed to cover that usage.
You would only drain your entire rack if you had zero input from the panels. i.e. in a multi-day thunderstorm. Not sure why it would take you so long to charge them unless you only have a tiny amount of panels. You need to have enough panels to supplement your loads and charge in a reasonable amount of time. Keep adding panels up to the point where your inverters can't handle anymore input voltage. 48 is probably overkill but you should try to start with 20. Also, try to manage your loads on the cloudy days better. i.e. postpone laundry, etc.
Thanks for the video. There’s a company here in the PNW that is working on developing solar roof “shingles”, so that your total roof becomes solar panels.
I think its a great idea to lower the consumption when going offgrid. It saves you from the utility bills but also wears the battery bank. 5kw of hotwater when you are sleeping is not wise id say. Turn off the not used appliances. Use smart switches or smaller appliances..
I am thinking of running 300AH lifepo4 batteries, 4 in a series to 48v, do that 3 times then running those 3 together in parallel to give me a total of 900AH and 48v. Would you put it together that way or do you think setting the bank up for 24v and 1800Ah with the 12 300AH batteries would be better?
Well done explanation, the key things I picked up on is that your very continuous about what’s was running. Can’t just use the power as if it was grid.
In my system I use a shunt to monitor all power going in and out. It gives me an extremely accurate idea of what my usage is and will be in the future. Along with the charge level of my battery bank. Right now, I'm averaging about 20KW of power usage per day. I usually can produce a little more than that per day with my solar arrays. Hopefully this continues for 31 more days 😆
@Country Living Experience: A Homesteading Journey Very accurate. You can see both live and past data. This gives you a timeline for when devices are turned on. If you know how many watts a device uses, it's super easy to track when it was turned on and for how long. If you don't know how much power something uses, no problem. Just turn it on while monitoring your power output. I use a victron smart shunt. I highly recommend it.
Actually to say that correctly you are averaging 20 kWh of energy usage per day. Power is instantaneous consumption and energy is power consumption overtime.
I’m in the exact same boat. Use more power then the 3.65kw of panels can provide. I have the 6 rack of Lifepower4’s. My shunt shows that I use somewhere around 175- 200ah a night. Last few days here in Post Oregon we’ve been socked in with freezing fog and have been running the generator during the day to keep up.
@@CountryLivingExperience yep NAWS had a 9% sale a few months ago so I bought another 3.65kw of panels and another charger controller. Just need county to hurry up with my permits.
Don't forget I'm completely off-grid here in northwest Ohio with only five 355w panels I'm running on 16 120ah lithium iron phosphate cells in 24v 5760wh now I have 8 277ah lithium cells on they way and then another 8 eventually because I want 16 of those 277ah cells as well to add to what I already have..Oh and I'm loving my new Senville Mini Split I talked to you about 😉
I think the news said this pass winter was the most cloudy winter on record for Michigan & Ohio U right about going days on in with no solar I was to mad lol I ended up using my generator 4-5 diff times over the course of the whole winter & I'm in Toledo Ohio
I would make sure the panels had two positions. One position for winter when the sun is lower in the sky. I would have my HW heater, clothes dryer, and cooking powered by propane or natural gas.
Hi, very nice video. Couple of suggestions. 1. I like to monitor my usage using "SOLAR ASSISTANT". It runs on a Raspberry Pi and provides a timeline graphing of solar generation and loads. It's relatively easy to figure out what appliance is on at a particular time. 2. I think for most people 3 days of autonomous power yields a battery which is unaffordable. So perhaps you might define two or more modes depending on the weather forecast. Modes could be abundant solar, and no solar. If you know that tomorrow or the next day will fully charge your batteries you may want to keep all 3 mini-splits on. But if you know it will be overcast, switching to two or even one might be more appropriate. Of course a generator may be the only source of power for those weeks when there is no solar.
If set to Solar, Battery, Utility, at night it will act as Battery, Solar, Utility. Not sure why you would want to do that in the daytime though. It would wear out your batteries faster. Additionally, I am not sure if many inverters offer that program option.
Awesome explanation!!! I'm just lost on how to do this for my ice cream truck here in hawaii😮...I need 10000 watts surge power..but only 8000 watts running...and the most I need it for is 8 hours. I need help...I need help...I'm dumb...lol...Mahalo for all your info..love your channel!!
Thank you. You just need an inverter that can handle 10kw or two inverters that can handle 5kw. Mobile platforms are very different. There is a channel that is called Explorist Life. They do a lot of solar installs in vans and RV's. You may find some valuable info there.
I have been off grid for 14 months. We are all electric, including water well. So far our average daily use is 8.46kwh. Average daily generation is 9.81 KWh Max in one day generated is 25.6 kWh Max used in one day is 22 kWh. We heat with wood mostly but use the AC to cool. My arrays are two 15x240w for a total of 7.2 kw Battery capacity is 12.8 kWh I use low voltage relays to run my hot water heater ( I put 1500 watt elements in them) only at float voltage or higher, and to eliminate loads based on necessities. So most loads where energy can be stored are only on when charging. We usually start the day above 65% unless we run the AC all night. I run a LF 6 kw 230v split phase inverter! Get more panels and run most your loads during daylight hours and you won’t need to buy as many batteries.
I believe the difference was that I was heating with the mini-splits. The draw for heating is twice that of cooling. I run most large loads like dryer or stove during daylight hours. I am changing out the water heater soon for a heat pump water heater.
You need insulation for hot water heater....then a timer. Even the grid i had a timer it was a hour a day for me so i could take a shower. It also had a bypass if hour wasnt enough. You really need one for an solar power solution.
a very nice video. but always in my mind how many kwh could win in winter in harsh conditions.For example i ve got a 10 kwh solar generator could it be generated at the worst situations in wintwer every mont at least 300 kwh that is our energy monhly needed.
The shorter days are starting to be noticeable on our power Opposite of you i have way more solar but less batteries. I keep adding batteries. Over 20kw of panels, 20kw inverters, and only 35kw of batteries. We hit 100% nearly everyday there is even partial sun. Two hours of mid day sun and that’s a good day to do laundry. Cloudy days not to bad but dark rainy days when it rains all day wow those are pitiful. Try adding a insulation wrap cover to your water heater that will help it not need to turn on overnight. It’s amazing the way we learn to use energy based on sun. We started in an rv so we would turn our water heater off at night. Still hot water in the morning anyway then flip a switch back on for it when the morning sun is up.
Appreciate your updates. Just went live with my system yesterday with two EG4 6500 inverters like yours. Have 12,800 watts of panels and 6 - EG4 batteries, 30,700 watts. I do have grid die into inverters and first night batteries were drained and went to bypass to grid. Of course, no sun next day. Did read where batteries need to be charged from external source before using to be functional, I did not know. Charged overnight and will try again today. Do have sun. Again, appreciate the detailed explanations and the reference material.
I kind of feel better about my heat pumps now lol. We have a 2400 sq foot home 2 42k BTU outdoor condensers and 7 indoor air handler mini splits and with it being 20-30 degrees outside we have been using right around 3KWH overnight for heat that was with the fridge, freezer, 100 gallon fish tank with 3 filters running and a heater plus various other appliances, security lights / landscaping lights as well.
@@CountryLivingExperience yea Im surprised your mr cools are using that much for heat. I have the Mitsubishi hyper heat. Have to see what they use when its down in the single or negative digits but anything is cheaper than oil even if it goes up to 6KWH a hour sure beats the current price of $6 a gallon for home heating fuel.
currently running the numbers on the Solarks or EG4. Two/Three EG4 won't be enough based on solar input. Two gets you about 16k max, and I plan to mount about 22k, requiring 3, BUT I have quite a bit of usage across the farm. 3-4 may be needed for load side. If I went with 3 EG4, I may split the panels to be some DC and some AC to keep within specs.
You can only run the EG4 in pairs unless you are going for 3 phase (very uncommon). So you would need 2 or 4 of them. Solark is a whole different animal and costs considerably more.
@@CountryLivingExperience Thanks for the heads up. In all my reading and planning, missed that minor detail. THANK YOU!! 2 isn't enough, 3 would not work, so 4 it is .. which gives me ample of everything (except wall space.. hahaha). Thanks again.
Friendly advise - grab a few Tasmota energy monitoring plugs. Whatever you want, you can measure. One simple HTTP call and short script and you have online monitoring using csv text file.
If you install a propane tankless water heater on your electric water heater cold inlet , you will make it in the winter( 60c inlet ) whit your battery’s.. just turn the ignition switch of in the summer and let cold water run true it ..
I have 2 banks of 6 eg4 batteries (not LL). Needing a wiring diagram to connect my 500A smart shunt to them. Banks are parallel to parallel. Pairing off on the two negatives. Would i need two smart shunts? One for each battery bank? Thanks.
Good info, I literally have the same system you have as I have modeled it after Will Prowse's system. To aid in faster charging during the day I picked up 4 of EG4's solar Mini splits and plan to use them to do my cooling/heating during the day so as much energy as possible from the panels goes in to charging up the batteries. But I am in FL so it will most likely be 90% cooling not heating. I did get the solar DC/AC 120V ones as it will be easier for me at least to wire them to 120 than 240 for use at night. I am also going to add a solar water heater element or possibly add a small second 30 gallon water heater with a solar heating element and switch between the two with bypass valves because during the summers here we really barely use any hot water, just for dishes and laundry. Showers are luke warm.
Thank you. Good thinking on the DC mini-splits for saving on daytime load draw. I am thinking that they are using the same amount of power from the panels though. Aren't they still robbing your total from the panels and in turn robbing the amount the panels are sending to the batteries?
@@CountryLivingExperience They are each on their own separate panels, 4 each per mini split. so they are completely separate as far as solar from the main panels. At night however they will be drawing from the battery bank :/
Have you considered outing wind turbine to your system.. what's nice about wind turbines is they don't need sunlight to work so its 3 in the morning every storm that comes in and I started turning you're making power.. your way that you can add a water turbine to the system.. what was the other two ways that you can get power to your system without running a generator to charge everything.. probably the least expensive out of all those would be the wind turbines
Thank you so much for your videos! We are beginning our off-grid journey also in East Texas and doing so slowly to keep things affordable! Appreciate the encouragement to build our solar system over time. I know nothing about electrical and researching this has had to come in waves so it doesn’t hurt the brain too much 😂 What have you found as your average days of autonomy in summer and winter so far?
insulation insulation, insulation. around the water heater, fridges, and freezers (just don't block airflow to the compressor), Not going to make a huge difference at one time, but every bit helps.
So if your batteries were completely drained and you had your grid connected to your inverter how much electricity would you use from your grid to recharge your batteries and how long would it take?
I don’t use the grid to charge. That is an option that I elected not to do. I charge from a generator or the panels. It will take probably 5 hours or more with the generator.
There are different ways you can it. I have a separate box set up for each individual room. Easier to keep up with for me. The only thing constantly running is my refrigerator, my lights are so efficient that they could run all day and night, I don't need ac because the way I have it insulated it stays in the 70s even in the Florida summers.
Overall, this is a really good, down-to-earth video that's highly "relatable" (if that's really a word 🤠). The style of delivery is easy-going and friendly. That said, I'd like to offer a couple of thoughts. There are opportunities to find the info in the video, but in the entire video, you never actually said you were running 48 volts. So, someone who didn't realize that and is using something OTHER than 48 volts is in for a surprise. They're not going to get 5KW per battery. I know you're not trying to hide it, but it would have been helpful to specifically call it out. (Don't assume they've seen your other videos and already know about your setup.) You mentioned that you don't know how much power your water heater uses. With all of the options for inline meters available today, and given that most of the planet uses 240v, it seems like there should be options to put a meter on a load like that and get a daily average for consumption. It might be worth exploring. Days of autonomy: You said you used about 62% of your battery supply for a 12-hour test. That's pretty much 5% per hour. So, if you set a discharge floor of 20%, that's about 16 hours. If you discharge all the way to 0%, you've got 20 hours. To get to 48 hours of autonomy with a floor of 20%, you need three times the battery bank you currently have. At $1650 each, 27 of the 48v, 100Ah EG4s will cost you $44,500 plus taxes and some serious shipping charges -- for enough power for just TWO days. And that's before you upgrade your solar array(s) to charge all of that. And that's for an 1800sf house. Then what happens on day three? You've got a dark house and a $44,500 paper weight in the garage. I don't say that to be critical, but to be real. If we're going to get autonomy, I believe we have to be willing to do two things: - Reduce consumption. Don't run all three mini-splits. Share bedrooms. Heated dog bed -- *_seriously???_* Look for alternatives to other loads. I think it's a mistake to think of an autonomous day as just another day, with no changes to how we use power. I know why people use a worst case like that for the purposes of estimating things, but I think that can cost people a truckload of money. When the grid is gone, habits based on the grid being available have to change. Lots of families can't just "keep buying batteries, keep buying panels". If increasing supply isn't practical, decreasing demand seems critical. - Supplement sources. Heat with a fireplace. Use a generator to share some of the loads or to help recharge. Heat water with propane. Break out the grill and the Dutch oven. I live in one of the worst places in the country for solar, at a northern latitude that's famous for being cloudy and rainy. If you live where I do, being "solar elite" just doesn't work. No one here has solar of any consequence. If you're really "homesteading", is dependence on electricity for everything like cooking really the right choice? Why do people always title their videos with stuff like "You MUST do this?" Can't they just be happy with "Here's what I did"? A camera and an opinion doesn't make one an authority that must be followed, right?
Thank you sir for the very informative video about off-grid solar and sizing. I have one question sir, will the battery while being charged in the daytime also supply power to the house load when the solar power becomes insufficient?
Great explanation! I've had the Sense Utility Monitor installed for a few years now and that helps give a good usage of daily power requirements without having to look at all the energy stickers on all the appliances. I was able to take that information and have my bank sized to be able to power my home for 24 hours with no solar. Of course, like you said, when you can GET MORE BATTERIES, so I'm working on getting close to what you have for capacity, but I imagine you're taking your own advice and will be growing your bank even more. Keep up the great work!
Good evening, happy Christmas to you. I have to say this video was excellent . You really clearly identified all of the potential issues a new system builder will encounter. Your explanation of calculations for batteries and panels was excellent. Thank you for taking the time to put together such a clear and concise video covering all the basics.
Great video. That is so true about having enough solar to fully charge up your batteries in a few hours. But my question is, what do you do if it’s raining for a few days? That’s when you need a plan B. My plan B is having a few of Signature Solar 48v 18a chargers and run them off my gas generator. Well right there is another problem. If you’re going to use a gas generator your going to have to store gas and treat it, so it will last for a year. Then you need to figure out, how much gas you want stored. ( I have 30 - 5 gallon Jerry cans. Don’t judge me 😂. ) Then I ran into a little problem. I have 3 of those 48v 18a chargers. I have an 8500watt whole house generator. I try running the chargers off the generator, but every time I run just one charger, the outlet keeps tripping. But I have two small Ryobi 1800w generator and each generator runs one charger for a little over 6 hours. Now that’s the problem that your going to run into. Having a generator or generators to run your chargers. I’ve been doing my test now and not later in a middle of something bad. What would you do for a plan B
Thank you. Leave some Jerry cans for the rest of us...😂😉. Those chargers have a lot of amps running through them. Good you have several small generators.
Insane ammount of power usage especially for off grid living. I'd be happy to have 20% of that capacity. December and january fcks me real good,with 2 days of sunshine a month. I have two 220ah lead acid batteries and one panel. I have a couple 12w lights,and a laptop. Yeah living in eastern europe survival camp...
@@CountryLivingExperience I probably had a rude tone,sorry for that. Avoiding heating appliances that run on electricity can greatly reduce power consumption. Not sure if firewood is an option for you, or if it fits your lifestyle...Houses in texas don't even have chimneys I guess. But you guys got lots of sunshine, so I guess it works okay for you.
No worries. Firewood is an option and I have a wood stove. However, firewood is expensive where I live. We do have a lot of sun so we are trying too take advantage of that.
72 degrees is overkill, if 65 is too cold then you need to buy more blankets.. not to mention the part where a wood stove installed would cost about the same as 1 of your batteries and would add a lot of resilience and utility to your property unless you have no trees.
EG4-LL LiFePo4 Batteries: signaturesolar.com/eg4-ll-lithium-battery-48v-100ahd/?ref=countrylivingexperience
IF you talk to an electrician you can probably rig a timer to keep the water heater off at night. Or switch it out to on demand.
@@davefroman4700 I am installing a heat pump water heater shorty. Probably in the next two weeks.
We live in Florida and get cloudy / rainy days more then you would think. We figured our battery backup for 22kw system (ac is not on battery backup). Instead of adding more batteries we decided to double our solar panel for those cloudy days. This was cheaper and has worked out. Thanks for your videos.
Well just remember to pay attention to the maximum charge rate of your batteries as people often overlook the fact that you can only push so much power into your battery at any given time. I have seen contractors void the warranty and destroy batteries because they drove too much current into them.
I always hated that Florida was the "sunshine state". Arizona gets much more sun!
Good solution if you have the room. I have noticed it is vary rarely that I have zero production. Even most overcast days I still get significant production.
I have 4kw solar with a single Power Wall. Here on the California coast they supply all my electricity needs the vast majority of time. I do have a heat pump backed up by a Natural gas furnace, gas range, gas hot water and gas dryer. As my appliances need replacement I am switching out for all electric. Next purchases are a heat pump hot water heater, and then an induction range. Presently I use only about a third of the power I produce.
I don’t have room on my roof for anymore solar panels and being in a condo I don’t have an area to ground mount them. So I will have to work within my 4kw production envelope.
You aint lyin about Florida, when I first moved to Leesburg I asked someone "Is it always this cloudy?" They said yes, it is.
This is by far the BEST video, because you actually brought out an appliance that is often used in a household and told us exactly how it would drain the battery…incredible and I am incredibly grateful for your channel! ♾💎✨
Glad it was helpful!
We live off a 15kw 24v system. It runs everything we need, but we only run a 110v water transfer pump, fridge, chest freezer, and lights everyday. We do have a microwave, rice cooker, Xbox and TV, but we only use those durring the day or when the generator is running. Our house is heated with a woodstove, and we use propane for a tankless water heater and stove/oven. Been living off grid for 5 years up here in Alaska, and started off with a 2kw battery bank, and slowly been upgrading as the years go by.
Cool. We are adapting a house that was already all electric. We don’t have any extras like vid game consoles or tv either.
Great video no wasted time just pure analysis that’s what I like to see
Glad you enjoyed
I installed an Emporia energy monitor system before installing solar. It gives a very accurate understanding of energy usage. I like that you can look at loads in amps, watts or cost. They make a 16 circuit or 8 circuit monitor but it does have sensors to monitor total panel loads.
Awesome. I'll check the Emporia out.
@@CountryLivingExperience I know at my house with my emporia energy monitor my second highest using device behind ac was the water heater. So I have since replaced with a heat pump style water heater. I put it in my garage cools my garage down and costs a third to run over conventional should go a long way helping your batteries go further.
It looks like the Emporia are smart devices. Smart devices of any kind can be controlled outside of the owners control.
@@cj77733 I think you can opt to not enable features that would connect it to outside sources.
My Emporia only monitors energy usage it doesn’t control anything. They do have smart devices but I don’t use them.
we have a switch to turn on our hot water heater. We turn it on 15 mins before taking a shower and its hot and good for about two showers. it also lengthens the life of your hot water heater.
Nice modification
We use a hybrid water heater, which uses a heat pump when enabled. pulls about 500 watts when heating water. Made by Rheem.
I’ve been looking for a video like this for months and your the first to really use real life examples of what to expect great job 👏
Glad it was helpful!
I live in the mountains of Arizona 6800 feet. I am totally off grid. I have 15000 watts of solar panels, solark 12, 30 kwh of lithium batteries. I run a 44000 btu mini split, hot water heater, freezer and refrigerator. sometimes my large harvest right freeze dryer. I bought emporia monitoring system. I love it! I know exactly what everything is using , there is an ap and no fees. It would be perfect for someone wanting to do solar. I love your videos, thank you.
Awesome! Sounds like a great setup.
Great video, here’s a few ideas. Rather than a huge battery bank consider a 48v DC water cooled generator that can run at night to charge the batteries and use the heat for either DHW or heating a hot water coil to heat your house. If the grid is down your prepared 100% even if you get a week of clouds without spending a fortune on batteries. Secondly get a heat pump DHW heater which will use 1/3 of the energy and replace the bottom element with a DC ELEMENT and run a few panels directly too it reducing your energy consumption even further.
Finally a specific number for how much power a house uses.
Thank you
You’re welcome
Living in Dallas and building a cabin in Pineland. I plan on being completely off-grid.
I really enjoyed your video.
Awesome. Glad it was helpful.
Thank you for posting. We are currently configuring an off grid power system in Northern Nevada. I have saved this video for future reference. We will have a generator back up so we will have ability to charge when the sun is not producing power through the solar array(s).
Glad it was helpful!
I learn a ton from your videos. Just installing my system now. I have 20 solar panels and luckily a micro hydro system that makes about 3kw continuous . I have 6 LifePo4 batteries. Hopefully I’m good to go
Awesome
3kw continuous you could run a mansion with a heated pool.
@@av1204 I would assume 3 kilowatts PER HOUR, NOT 3 kilowatts per second/continously.
@@WilliamIraWoodIV 3 kw per hr is still 72kwh a day. My all electric house uses 22 kwh a day.
@@av1204 Many areas in the contiguous 50 states only get 5 hours, on average, of prime sunlight that produces electricity from solar panels. So 3 kwh X 5 is only 15 kwh of power generation per day. ;)
Great that you point out people don't think about the loads they are using in the day time and having to charge the batteries at the same time.
Thanks!
I added mine up, factored in a week of autonomy, and I need a shocking amount of batteries and solar panels.
I got 2 eg4-LL's (v2) and 1 6500ex inverter + the 6 slot rack. $5500 for a bit of battery backup to start, and I'll add solar and more batteries as I go. Our main power plant is now shut down and they say we'll have blackouts this summer. Wish me luck.
It is a shocking amount for sure. Just keep building it one piece at a time. Good luck.
@@CountryLivingExperience Good luck: all of our main power plants may soon die, in which case we all must be self-(solar) powered. So it seems.I am nowhere near that, as yet in S Louisiana.
Having lived in Michigan and Western Washington states I can say yes very cloudy and rainy.
I would encourage you to look into Emporia Energy (or something similar) to monitor each breaker for energy use. I love mine and it allows me to track each circuit in my system!
Awesome. Thank you. Someone else mentioned that today as well.
Just installed one of those myself this week. Love the results!
Great information for sure. Being East Texas bread, born and raised Texarkana. However living on lake Whitney, I still make the trip to Signature Solar to pick up my solar needs. You living very close by about 45 minutes I believe. Thanks for the great video, have a wonderful week. God Bless in all you do.
Awesome. God bless y'all as well.
Are you solar on the lake? I am near Juniper Cove and contemplating the jump.
I am 20 min north of New Boston. It is a real blessing to live so close to Signature Solar.
I have also been on my own DIY Journey and built my system out this summer (My house is 100% electric), I'm in Upstate SC, so Helene had me off-grid for 7 days. I have 500AH of Lipo4 and 2 EG4-6000XP's, and 12K of solar. Battery management became high-priority on day 2 (as I woke up in a sweat at 1:20am from poor planning) I decided to drop both my chest freezers to 0 fahrenheit, and put timers on them so they were off from 10pm to 10am, neither went higher than 13 by morning. Also I've put a wrap blanket on my electric water heater and manually shut it off on the same schedule (I'm installing a timer this weekend) Always had enough hot water, and all I wanted during solar hours, we are a family of 3 (I'm fortunate and was getting 7 good sun hours every day) I ran my 12K generator with a Chargeverter every night from 8pm to 12am (or as needed) for 100% battery every night, ran 3 mini-splits every night and had enough battery left that solar could take over in the morning. It was an awesome acid test of "What will it take for me to go 100% off-grid" Now getting into winter sun, I know I'm going to overpanel significantly (at least double my current array) and quadruple my battery. My biggest lesson was "You better use or store that solar during peak sun" (I always made more than I could use or store) So Laundry, Cooking, etc was NOT a nighttime event. I installed my system to cut my utility bills initially, but now my goal is to disconnect the grid. I've gone this far, might as well do it.
Just starting my OFF GRID life, have a small solar system for my Tiny house. 10Kwat of starage and 1.2Kwatts of panels., that dosen't cut it. I suspect I will need 20 Kwatts of storage and 6 Kwatts of solar panels for those winter days. My night time load is about 1.5 Kwatts. I do have a small electric watter heater and I placed a power switch and I only turn it on during the day for about 20 min as needed; works well. I will check out those calculators you suggested. Thx!
You're welcome. Keep building that system up.
The best video I've come across summarizing solar power so far. Thanks so much.
You're welcome
Thx a lot for all your efforts & congratulations on your set up. I only needed 2 batteries, but I decided to get 4 anyway. Because I got the best. The Discover AES 42-48-6650 gives me 6,650 amp per hour per battery. I will never run out of amp
highly recommend getting a heatpump water heater they are insanely efficient
Absolutely! I have one waiting to be installed. A Rheem performance platinum.
AC, heat, and water heater are the biggest hits to your daily energy use. I only have 11kwh of lifepo4 batteries. However it’s just for outages, we are on grid. We only need it for cooking and keeping freezers running.
They sure are the bulk of the loads. Glad you have a good backup for your critical items.
You did a great job explaining I am currently putting together my solar system components and like you I don't have deep pockets it is a pay as you go project. But calculating load requirements can be a huge pain simply because as you stated there are so many variables we cannot control. But you did well explaining in layman's terms we can all understand. Thanks
Thank you. Glad it was helpful. I did order one of the Emporia monitoring systems so I can better understand the loads. I’ll do a review on it once I study my loads for a few weeks.
I just ordered a 13000 watt system and have been watching these videos to gain information. My utility (FPL in Florida) installed a smart meter on my home several years ago. I can research my past usage. Last year in July I used 39 kWh a day. This year is much hotter and I am using 42 kWh a day. I am getting 11000 watts of panels so I should have enough power. I am getting 20 kWh of batteries so I will have to watch my night time usage.
All I can say objectively is, Well Done Sir!
Thank you kindly!
can't wait to go off grid!
We had a timer switch installed on our hot water heater. We have a family of three and we let it run for four hours every day. That gives us enough hot water for all to take showers and wash dishes. If we need more we can change it to be on longer or shorter.
Cool
I use eyedro to monitor loads. It's working for me so far.
Cool
Beautifully done as always! - SS
Thanks again!
Your videos are always helpful. Thank you and Merry Christmas!!
I appreciate that. Merry Christmas!
For energy monitoring I got Emporia Smart Home system. I still need to get one for my main panel and one for my workshop that's hybrid solar system.
Another thing that we did was got a hybrid solar water heater. Uses 400 watts most of the time to heat the water.
The main energy user is our whole house heat pump - non-geo thermal. 2 ton at 4k watts heating about 2k cooling.
And yes, it is a cycle of getting more batteries and more panels. Till the system has grown to acceptable off-grid for the majority of the time. Regardless, the electric bill will decrease each time.
I am going to get an Emporia soon. I have a heat pump water heater that I still need to hook up and do a video on.
I HIGHLY recommend in buying 2.5-3.5x more solar KWH then what your daily consumption is to Help maintain enough energy being put into your battery bank storage and into your home that even when cloudy theres still enough energy getting to your home use and keeping your batteries charged
That is partially what I was alluding to.
Jeez... Last year we used 5,5 kWh (on average) per day (that's 24 hrs, that is) with a two person household in a (approx.) 140 square meter (1507 sq ft) house, here in Spain. So we have one 4.8 kWh (100amp) Pylontech battery. Pretty good. Nice video, thnx for sharing.
Thank you
I am a pensioner in South Africa where we have frequent power outages called "load shedding" so I put together a 24v 50ah lifepo4 battery with a 100v 20a solar charge controller and a 3000w inverter and 400w solar panels to help with my fridges and freezer during the day, at night I only run the 2 small fridges for about 4 hours during load shedding. Now I am planning a 24v 3000w system with a 24v 100ah lifepo4 battery and 920w solar. Later I plan to upgrade this second system batteries to 24v 200ah and the again to 300ah. I happen to be an electrician as well.
That is wonderful. Glad you are continuing to build your system. I know the hardships in South Africa with electricity. I have friends who live there.
Best Video I,ve seen about explaining these things BEST!!! Awesome work i will deff subscribe. I have a 6kw system here in Jamaica 2 Lithium batteries each 7.5kw 150 AH.
Thank you. Glad it was helpful.
According to my Emporia Vue, my home consumes between 37kW and 42kW/day, every day (about 1,400kW/month). I would be draining and depleting this entire rack of batteries Day 1, and then take 7 days of 3-4 solar hours per-day to fill it back up again.
Using the calculator at the altestore, it shows I will need 48 x 500W panels just to cover my current monthly load. I don't have the rooftop acreage to even come close to bring in the 23kW system needed to cover that usage.
You would only drain your entire rack if you had zero input from the panels. i.e. in a multi-day thunderstorm. Not sure why it would take you so long to charge them unless you only have a tiny amount of panels. You need to have enough panels to supplement your loads and charge in a reasonable amount of time. Keep adding panels up to the point where your inverters can't handle anymore input voltage. 48 is probably overkill but you should try to start with 20. Also, try to manage your loads on the cloudy days better. i.e. postpone laundry, etc.
Thanks for the video.
There’s a company here in the PNW that is working on developing solar roof “shingles”, so that your total roof becomes solar panels.
You're welcome
Tesla does that already
I think its a great idea to lower the consumption when going offgrid. It saves you from the utility bills but also wears the battery bank. 5kw of hotwater when you are sleeping is not wise id say. Turn off the not used appliances. Use smart switches or smaller appliances..
Solar does cause you to modify behavior.
I agree using an Emporia monitor is critical to figure out your loads.
Got one on the way. Thanks for all the viewers that have suggested it.
I am thinking of running 300AH lifepo4 batteries, 4 in a series to 48v, do that 3 times then running those 3 together in parallel to give me a total of 900AH and 48v. Would you put it together that way or do you think setting the bank up for 24v and 1800Ah with the 12 300AH batteries would be better?
The first question is....what is the voltage of the inverter you are running?
Well done explanation, the key things I picked up on is that your very continuous about what’s was running. Can’t just use the power as if it was grid.
Thank you. Yes, that is key. It is a totally different experience from the grid for sure.
Great video. Really helps me to understand how weak my system is even for a backup to my gas generator. Need mo powa
Thank you.
Certainly always need mo powa.
In my system I use a shunt to monitor all power going in and out. It gives me an extremely accurate idea of what my usage is and will be in the future. Along with the charge level of my battery bank. Right now, I'm averaging about 20KW of power usage per day. I usually can produce a little more than that per day with my solar arrays. Hopefully this continues for 31 more days 😆
I have thought about getting one but how accurate is it. Is it going to tell you what appliance is drawing what load at what time, etc?
@Country Living Experience: A Homesteading Journey Very accurate. You can see both live and past data. This gives you a timeline for when devices are turned on. If you know how many watts a device uses, it's super easy to track when it was turned on and for how long. If you don't know how much power something uses, no problem. Just turn it on while monitoring your power output. I use a victron smart shunt. I highly recommend it.
Actually to say that correctly you are averaging 20 kWh of energy usage per day. Power is instantaneous consumption and energy is power consumption overtime.
I’m in the exact same boat. Use more power then the 3.65kw of panels can provide. I have the 6 rack of Lifepower4’s. My shunt shows that I use somewhere around 175- 200ah a night. Last few days here in Post Oregon we’ve been socked in with freezing fog and have been running the generator during the day to keep up.
Keep adding to your array. I will be doing that soon. The more the better for sure.
@@CountryLivingExperience yep NAWS had a 9% sale a few months ago so I bought another 3.65kw of panels and another charger controller. Just need county to hurry up with my permits.
Awesome!
to charge the batteries faster, is it possible to add a separate solar and battery charger to get the battery to full charge?
Yes. I have to buy more and add them. I cannot afford that right now. I talked about that.
Don't forget I'm completely off-grid here in northwest Ohio with only five 355w panels
I'm running on 16 120ah lithium iron phosphate cells in 24v 5760wh now I have 8 277ah lithium cells on they way and then another 8 eventually because I want 16 of those 277ah cells as well to add to what I already have..Oh and I'm loving my new Senville Mini Split I talked to you about 😉
Glad the Senville is working out for you.
I think the news said this pass winter was the most cloudy winter on record for Michigan & Ohio U right about going days on in with no solar I was to mad lol I ended up using my generator 4-5 diff times over the course of the whole winter & I'm in Toledo Ohio
Awesome video. Really good information! Thank you !
Glad it was helpful!
That set up is very familiar. very nice
Cool
I would make sure the panels had two positions. One position for winter when the sun is lower in the sky. I would have my HW heater, clothes dryer, and cooking powered by propane or natural gas.
Hi, very nice video. Couple of suggestions.
1. I like to monitor my usage using "SOLAR ASSISTANT". It runs on a Raspberry Pi and provides a timeline graphing of solar generation and loads. It's relatively easy to figure out what appliance is on at a particular time.
2. I think for most people 3 days of autonomous power yields a battery which is unaffordable. So perhaps you might define two or more modes depending on the weather forecast. Modes could be abundant solar, and no solar. If you know that tomorrow or the next day will fully charge your batteries you may want to keep all 3 mini-splits on. But if you know it will be overcast, switching to two or even one might be more appropriate.
Of course a generator may be the only source of power for those weeks when there is no solar.
10:14 can i have a large battery bank that stores the electricity from solar panels, and set to battery, solar, utility?
If set to Solar, Battery, Utility, at night it will act as Battery, Solar, Utility. Not sure why you would want to do that in the daytime though. It would wear out your batteries faster. Additionally, I am not sure if many inverters offer that program option.
Excellent!
Awesome explanation!!! I'm just lost on how to do this for my ice cream truck here in hawaii😮...I need 10000 watts surge power..but only 8000 watts running...and the most I need it for is 8 hours. I need help...I need help...I'm dumb...lol...Mahalo for all your info..love your channel!!
Thank you.
You just need an inverter that can handle 10kw or two inverters that can handle 5kw. Mobile platforms are very different. There is a channel that is called Explorist Life. They do a lot of solar installs in vans and RV's. You may find some valuable info there.
M A H A L O !!!@@CountryLivingExperience
Wawoo brother your system is so amazing and thank you very much for shearing very helpful knowledge
Best regards from Philippines 🇵🇭
Salamat
try adding an Emporia Vue gen 2 to your distribution panel to monitor up to 16 circuits works great
A lot of good information here!
Thanks
@ the biggest issue I’ve had w my setup is the lack of battery storage. You need more than you think you do….
@@cantbsdave Absolutely! Especially if you are running all electric appliances in a typical home.
You could put a switch and turn off the water heater until you need it.
Yes. I currently do that by flipping the breaker.
I turn off the hot water heater during a blackout. We use electric kettles to get hot water as needed. This saves us about 10KWh per day.
Good call
I have been off grid for 14 months. We are all electric, including water well. So far our average daily use is 8.46kwh. Average daily generation is 9.81 KWh
Max in one day generated is 25.6 kWh
Max used in one day is 22 kWh.
We heat with wood mostly but use the AC to cool.
My arrays are two 15x240w for a total of 7.2 kw
Battery capacity is 12.8 kWh
I use low voltage relays to run my hot water heater ( I put 1500 watt elements in them) only at float voltage or higher, and to eliminate loads based on necessities. So most loads where energy can be stored are only on when charging.
We usually start the day above 65% unless we run the AC all night.
I run a LF 6 kw 230v split phase inverter!
Get more panels and run most your loads during daylight hours and you won’t need to buy as many batteries.
I believe the difference was that I was heating with the mini-splits. The draw for heating is twice that of cooling. I run most large loads like dryer or stove during daylight hours. I am changing out the water heater soon for a heat pump water heater.
You need insulation for hot water heater....then a timer. Even the grid i had a timer it was a hour a day for me so i could take a shower. It also had a bypass if hour wasnt enough. You really need one for an solar power solution.
a very nice video. but always in my mind how many kwh could win in winter in harsh conditions.For example i ve got a 10 kwh solar generator could it be generated at the worst situations in wintwer every mont at least 300 kwh that is our energy monhly needed.
The shorter days are starting to be noticeable on our power Opposite of you i have way more solar but less batteries. I keep adding batteries. Over 20kw of panels, 20kw inverters, and only 35kw of batteries. We hit 100% nearly everyday there is even partial sun. Two hours of mid day sun and that’s a good day to do laundry. Cloudy days not to bad but dark rainy days when it rains all day wow those are pitiful. Try adding a insulation wrap cover to your water heater that will help it not need to turn on overnight. It’s amazing the way we learn to use energy based on sun. We started in an rv so we would turn our water heater off at night. Still hot water in the morning anyway then flip a switch back on for it when the morning sun is up.
Right now Im using 17-22 kwh a day in 24 hours in a 4600 sq ft house in Northern Virginia. Your house is using over double what I use....
Very clearly expressed. Thanks!
Glad it was helpful!
Appreciate your updates. Just went live with my system yesterday with two EG4 6500 inverters like yours. Have 12,800 watts of panels and 6 - EG4 batteries, 30,700 watts. I do have grid die into inverters and first night batteries were drained and went to bypass to grid. Of course, no sun next day. Did read where batteries need to be charged from external source before using to be functional, I did not know. Charged overnight and will try again today. Do have sun. Again, appreciate the detailed explanations and the reference material.
Awesome that you got your system up and running!
well explained mate, were in the same position, we all seem to be time poor to get it all done
Thank you
I love your channel! Have a blessed day.
Thank you very much! God bless you as well.
I kind of feel better about my heat pumps now lol. We have a 2400 sq foot home 2 42k BTU outdoor condensers and 7 indoor air handler mini splits and with it being 20-30 degrees outside we have been using right around 3KWH overnight for heat that was with the fridge, freezer, 100 gallon fish tank with 3 filters running and a heater plus various other appliances, security lights / landscaping lights as well.
3kwh is not bad for all of that.
@@CountryLivingExperience yea Im surprised your mr cools are using that much for heat. I have the Mitsubishi hyper heat. Have to see what they use when its down in the single or negative digits but anything is cheaper than oil even if it goes up to 6KWH a hour sure beats the current price of $6 a gallon for home heating fuel.
For sure. Fuel oil is out of control. We used to have it in Michigan years ago.
currently running the numbers on the Solarks or EG4. Two/Three EG4 won't be enough based on solar input. Two gets you about 16k max, and I plan to mount about 22k, requiring 3, BUT I have quite a bit of usage across the farm. 3-4 may be needed for load side. If I went with 3 EG4, I may split the panels to be some DC and some AC to keep within specs.
You can only run the EG4 in pairs unless you are going for 3 phase (very uncommon). So you would need 2 or 4 of them. Solark is a whole different animal and costs considerably more.
@@CountryLivingExperience Thanks for the heads up. In all my reading and planning, missed that minor detail. THANK YOU!! 2 isn't enough, 3 would not work, so 4 it is .. which gives me ample of everything (except wall space.. hahaha). Thanks again.
Friendly advise - grab a few Tasmota energy monitoring plugs. Whatever you want, you can measure. One simple HTTP call and short script and you have online monitoring using csv text file.
Thanks for the heads up
If you install a propane tankless water heater on your electric water heater cold inlet , you will make it in the winter( 60c inlet ) whit your battery’s.. just turn the ignition switch of in the summer and let cold water run true it ..
sense makes easy to use monitor. also get hybrid hotwater heater.... saves 2-3 kwh a day.
Yep, I have a heat pump water heater waiting to be installed. Been sitting here for a month...lol.
I have 2 banks of 6 eg4 batteries (not LL). Needing a wiring diagram to connect my 500A smart shunt to them. Banks are parallel to parallel. Pairing off on the two negatives. Would i need two smart shunts? One for each battery bank? Thanks.
Good info, I literally have the same system you have as I have modeled it after Will Prowse's system. To aid in faster charging during the day I picked up 4 of EG4's solar Mini splits and plan to use them to do my cooling/heating during the day so as much energy as possible from the panels goes in to charging up the batteries. But I am in FL so it will most likely be 90% cooling not heating. I did get the solar DC/AC 120V ones as it will be easier for me at least to wire them to 120 than 240 for use at night. I am also going to add a solar water heater element or possibly add a small second 30 gallon water heater with a solar heating element and switch between the two with bypass valves because during the summers here we really barely use any hot water, just for dishes and laundry. Showers are luke warm.
Thank you.
Good thinking on the DC mini-splits for saving on daytime load draw. I am thinking that they are using the same amount of power from the panels though. Aren't they still robbing your total from the panels and in turn robbing the amount the panels are sending to the batteries?
@@CountryLivingExperience They are each on their own separate panels, 4 each per mini split. so they are completely separate as far as solar from the main panels. At night however they will be drawing from the battery bank :/
Ah, I understand.
Have you considered outing wind turbine to your system.. what's nice about wind turbines is they don't need sunlight to work so its 3 in the morning every storm that comes in and I started turning you're making power.. your way that you can add a water turbine to the system.. what was the other two ways that you can get power to your system without running a generator to charge everything.. probably the least expensive out of all those would be the wind turbines
I have not considered it since I do not live in a windy area. It would not be money well spent here.
Thank you for the video! Very nice explanation!
You’re welcome
Thank you so much for your videos! We are beginning our off-grid journey also in East Texas and doing so slowly to keep things affordable! Appreciate the encouragement to build our solar system over time. I know nothing about electrical and researching this has had to come in waves so it doesn’t hurt the brain too much 😂
What have you found as your average days of autonomy in summer and winter so far?
You’re welcome. Glad we could help. Weather is such a factor in days of autonomy that is hard to nail down. It fluctuates so much all the time.
insulation insulation, insulation. around the water heater, fridges, and freezers (just don't block airflow to the compressor), Not going to make a huge difference at one time, but every bit helps.
Very good video! Thanks for sharing
Thank you and you’re welcome.
Sense Home monitoring unit tracks KW usages and finds devices as it runs.
So if your batteries were completely drained and you had your grid connected to your inverter how much electricity would you use from your grid to recharge your batteries and how long would it take?
I don’t use the grid to charge. That is an option that I elected not to do. I charge from a generator or the panels. It will take probably 5 hours or more with the generator.
Put the Water Heater on a Timer, it can be off at Knight.
There are different ways you can it. I have a separate box set up for each individual room. Easier to keep up with for me. The only thing constantly running is my refrigerator, my lights are so efficient that they could run all day and night, I don't need ac because the way I have it insulated it stays in the 70s even in the Florida summers.
The explanation I crave! Thanks.
You're welcome
Thank you for a very informative overview 😊
You're welcome
Overall, this is a really good, down-to-earth video that's highly "relatable" (if that's really a word 🤠). The style of delivery is easy-going and friendly.
That said, I'd like to offer a couple of thoughts. There are opportunities to find the info in the video, but in the entire video, you never actually said you were running 48 volts. So, someone who didn't realize that and is using something OTHER than 48 volts is in for a surprise. They're not going to get 5KW per battery. I know you're not trying to hide it, but it would have been helpful to specifically call it out. (Don't assume they've seen your other videos and already know about your setup.)
You mentioned that you don't know how much power your water heater uses. With all of the options for inline meters available today, and given that most of the planet uses 240v, it seems like there should be options to put a meter on a load like that and get a daily average for consumption. It might be worth exploring.
Days of autonomy: You said you used about 62% of your battery supply for a 12-hour test. That's pretty much 5% per hour. So, if you set a discharge floor of 20%, that's about 16 hours. If you discharge all the way to 0%, you've got 20 hours. To get to 48 hours of autonomy with a floor of 20%, you need three times the battery bank you currently have. At $1650 each, 27 of the 48v, 100Ah EG4s will cost you $44,500 plus taxes and some serious shipping charges -- for enough power for just TWO days. And that's before you upgrade your solar array(s) to charge all of that. And that's for an 1800sf house. Then what happens on day three? You've got a dark house and a $44,500 paper weight in the garage. I don't say that to be critical, but to be real. If we're going to get autonomy, I believe we have to be willing to do two things:
- Reduce consumption. Don't run all three mini-splits. Share bedrooms. Heated dog bed -- *_seriously???_* Look for alternatives to other loads. I think it's a mistake to think of an autonomous day as just another day, with no changes to how we use power. I know why people use a worst case like that for the purposes of estimating things, but I think that can cost people a truckload of money. When the grid is gone, habits based on the grid being available have to change. Lots of families can't just "keep buying batteries, keep buying panels". If increasing supply isn't practical, decreasing demand seems critical.
- Supplement sources. Heat with a fireplace. Use a generator to share some of the loads or to help recharge. Heat water with propane. Break out the grill and the Dutch oven. I live in one of the worst places in the country for solar, at a northern latitude that's famous for being cloudy and rainy. If you live where I do, being "solar elite" just doesn't work. No one here has solar of any consequence. If you're really "homesteading", is dependence on electricity for everything like cooking really the right choice?
Why do people always title their videos with stuff like "You MUST do this?" Can't they just be happy with "Here's what I did"? A camera and an opinion doesn't make one an authority that must be followed, right?
Thank you sir for the very informative video about off-grid solar and sizing. I have one question sir, will the battery while being charged in the daytime also supply power to the house load when the solar power becomes insufficient?
You're welcome. Yes, that is how the system works when you have batteries.
Great explanation! I've had the Sense Utility Monitor installed for a few years now and that helps give a good usage of daily power requirements without having to look at all the energy stickers on all the appliances. I was able to take that information and have my bank sized to be able to power my home for 24 hours with no solar. Of course, like you said, when you can GET MORE BATTERIES, so I'm working on getting close to what you have for capacity, but I imagine you're taking your own advice and will be growing your bank even more. Keep up the great work!
Thanks. I'll check out that Sense monitor. Always keep buying more ;-)
Our heat is gas, electricity is pretty low in the winter. The AC is the killer.
Thank U for posting this educational post, I subscribed Cheers !
You’re welcome
Good evening, happy Christmas to you. I have to say this video was excellent . You really clearly identified all of the potential issues a new system builder will encounter. Your explanation of calculations for batteries and panels was excellent. Thank you for taking the time to put together such a clear and concise video covering all the basics.
Merry Christmas! Glad the video was helpful and informative.
Good video…thanks 👍
You're welcome
Great video. That is so true about having enough solar to fully charge up your batteries in a few hours. But my question is, what do you do if it’s raining for a few days? That’s when you need a plan B.
My plan B is having a few of Signature Solar 48v 18a chargers and run them off my gas generator. Well right there is another problem. If you’re going to use a gas generator your going to have to store gas and treat it, so it will last for a year. Then you need to figure out, how much gas you want stored. ( I have 30 - 5 gallon Jerry cans. Don’t judge me 😂. )
Then I ran into a little problem. I have 3 of those 48v 18a chargers. I have an 8500watt whole house generator. I try running the chargers off the generator, but every time I run just one charger, the outlet keeps tripping. But I have two small Ryobi 1800w generator and each generator runs one charger for a little over 6 hours.
Now that’s the problem that your going to run into. Having a generator or generators to run your chargers.
I’ve been doing my test now and not later in a middle of something bad.
What would you do for a plan B
Thank you. Leave some Jerry cans for the rest of us...😂😉.
Those chargers have a lot of amps running through them. Good you have several small generators.
Insane ammount of power usage especially for off grid living. I'd be happy to have 20% of that capacity. December and january fcks me real good,with 2 days of sunshine a month. I have two 220ah lead acid batteries and one panel. I have a couple 12w lights,and a laptop. Yeah living in eastern europe survival camp...
It's a modern house fitted to go off-grid that's why. If I was building from the ground up, it would use less.
@@CountryLivingExperience I probably had a rude tone,sorry for that. Avoiding heating appliances that run on electricity can greatly reduce power consumption. Not sure if firewood is an option for you, or if it fits your lifestyle...Houses in texas don't even have chimneys I guess. But you guys got lots of sunshine, so I guess it works okay for you.
No worries. Firewood is an option and I have a wood stove. However, firewood is expensive where I live. We do have a lot of sun so we are trying too take advantage of that.
72 degrees is overkill, if 65 is too cold then you need to buy more blankets.. not to mention the part where a wood stove installed would cost about the same as 1 of your batteries and would add a lot of resilience and utility to your property unless you have no trees.
How much draw did the inverters contribute to the over night usage?
It is relatively low. Only about 15w per inverter.
I am installing these same inverters with 840ah of battery and 16000 watts of panels which it max for those inverters on my house right now
Cool. Keep building up.