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7:46 - Do something with focus on camera, literally after few minutes eyes start to hurt when watching blurred videos. Take a look at your own video. Does the person who record this, see its out of focus???
Very interesting, I wonder if he has an EV as I find use of the EV is less predictable and charging it with solar would mess with the schedules programmed
HomeAssistant is absolutely fantastic. There are two projects to try out for this kind of optimisation - EMHASS, which uses linear programming to figure out the optimal charge and discharge based on a machine learning prediction of your home usage (based on previous usage + seasonality factors), energy costs (and payments for export) as well as your solar forecast through Solcast. The other is BATPRED which is integrated more fully with HomeAssistant and does a similar thing - the Author, Trefor, is very communicative and always improving it, including adding machine learning prediction of your household usage. It also integrates with the Octopus Energy integration for HomeAssistant as well as with your EV charger so you can pretty much set it and forget it.
Having a SolaX inverter and 15Kwh SolaX batteries installed and got fed up with the crap app, I ventured into Home Assistant and would never consider looking back.
Great video! Love the wider content on Home Assistant - just started playing around with HA myself and will look at Thomas' coding. Would love more content in this area! Great work Jordan & team.
We're with Octopus Go (despite not having an EV), just added a second Powerwall 2, and with 5kW inverter on 6.4kWp panels in Devon. The second powerwall gave us the right size of storage so that in summer we will never use peak rate electricity. Winter we are yet to find out, but should be only occasional. Octopus Go overnight rate is very low at 8.5p/kWh.
Nice install. How did you get all that past the DNO though? Is it a three phase supply? With the 6kw solar edge you're over the 17kW per phase limit for G99. G100 can be used to limit export but even with an export limitation scheme in place they still wont let you have more than 17kw of total inverter capacity per phase.
3:20-Increasingly, manufacturers are encouraging you to account for heat derating of the breakers. The thermal overload trips quicker in a hot environment, so they suggest increasing the size (so long as you also increase the cable to account for it). But there is very small VD tolerance on a lot of the generation, so might already be running a size up on the cable
The gentleman is describing time efficiency use & scheduled device usage. Very clever indeed & as a night lorrry driver woukd be great to activate dryer at cheap times of mirnjng... whilst not disturbing neighbours
Great video, beautiful installation ! nice to see the Tesla batteries, I personally have 23.5kW puredriveII installation with a 3.6kw Solis Inverter. G98 approval at the moment, trying to go to G99 and a 6kw inverter. The one thing I noticed though is that producing back from the batteries will use energy and quite a bit as well.... So importing at 7.5ppkW (OIG) and exporting it at 15ppkW it is making only say 5p per kW, not sure if I want to cycle my batteries for this.... food for thought 🙂
Great video. Totally agree with Tom that all systems should have an open API so that everyone can do this as it's better on a cost perspective and better on the grid to help it be as green as possible. I can't fit solar but I have an Enphase battery system. They are a bit behind with the API being read-only, and off grid and octopus api integration coming later this year apparently. But for me the units being mounted outside and the 3 batteries capable of over 10Kw continuous and up to 16Kw for short periods it was overall the best option. Overnight the batteries can be charging at 9.6KW, car at 7Kw and the washing machine running etc... I have seem it pulling just over 18Kw from the grid. I'm glad I'm on a 100A supply :)
well, it depends.. what you want to do? i mean if you want to use a Heat pump based heating with 2 days worth of independency from the grid, well then this is not even enough, (150m2 and upwards)
@@rogerphelps9939 A friend has 2 powerwalls which covers most of his daily usage including his heat pump. The main reason I got added the two extra powerwalls is we're planning on adding a heat pump in the future and I wanted enough storage to cover a days usage (charging of overnight cheap electricity).
So at 3:51 "the mains come in here and then split into backup and non backup" So do I need two cables to my garage ? From the incoming smart meter to my garage battery and then from my battery back to the house? Or is there ‘kit’ that can use a single 3 core ‘bidirectionally’ please? (I have an armoured 3 core from the incoming main through an isolation switch to a second distribution board in the garage that’s just powering a new utility room but in anticipation of fitting an EV charger.)
i use Home Assistant and have managed to use it to automate many parts of my home. I have a similar setup and am hoping to add a second powerwall in the future. Great to see what Tom created. I will be downloading his add on and trying it out. Thanks for sharing.
Chap with drill should learn to allow drill bit to cut through, rather than push or force the drill bit through the material. Forcing can ruin drill bit via overheating & damage hidden items past the point you wish to cut into.
excellent installation - just going to watch the last bit about home assistant - shame our video with the Plaid didnt happen but it was a good bit of fun on the day. Same here 3 x PWs / HP / Solar and two 22 kW car chargers but on three phase which I think is king as the batteries dont think as l1 / l2 / l3 but as one big battery so divide out where needed - keep up the good work
I use Home assistant alongside my GivEnergy system the main addons are GivTCP to bring the GivEnergy data and control into home assistant and Predbat which does all the battery prediction work outlined in this video.
Great video thankyou. I understand why they've done this so that the Tesla can provide the same instantaneous Watts that the Grid could provide ie 13kW.
Great Video! Im also using Home Asisstant for my Balcony Solar System, it is a little tricky to set up but when it works its really Great :) In a few of your Videos the Audio is clipping a LOT, that is really annoying to listen to with Headphones, just lower the Decibel of the Microphones a bit thanks :/
Jordan what’s your thoughts on bi directional rcbos . I believe the mcg double poles are bi directional , you have replaced them with the proteus which are not bi directional.
@@bramcoteelectrical1088 I’m not convinced. I understand why a sensitive coil In an rcd can fail . I can’t understand why a bi metallic strip on overload or short circuit wouldn’t operate regardless of which way the current flows .
Very interesting and great video. I live in the South of France. Here, solar makes a lot of economic sense as long as you can consume the produced electricity yourself. But as soon as batteries get involved, you are losing money.
I used to do all of that solar prediction stuff back when my feed in tariff was half the off peak rate I paid on Octopus Go. So it made sense to charge the battery up with excess solar instead of taking it out of the grid. But once they raised the export tariff to double the off peak rate, it no longer made financial sense to bother. All that happens now is the batteries charge up overnight, then the house runs off a combination of the batteries and any solar I generate. On a good day, that typically means the excess solar charges the batteries back up to 100% in the morning then I export the rest over the course of the day. At the end of the day I then dump whatever's left back to the grid and then charge up again overnight. All done in Home Assistant with Node Red and the Solaredge local Modbus over IP integration. No cloud API's required.
So charging during night off peak then discharging during the day how long will the batteries last before failure then cost of replacement. Have you taken this cost into account ?
@@Onyourbiketoo the batteries on my system are DC coupled, and operate using the solaredge inverter. So it's not quite an apples to apples comparison with a Tesla Powerwall as mine aren't a standalone product. They need to solar inverter to connect to them to the house/grid. Also, when we got the batteries, they were still VAT-able unless installed with a solar array. That's changed now, so you can get the battery storage on its own without paying the VAT. That's effectively a 20% saving or thereabouts. We have a fair bit of low lying tree coverage, and aren't positioned exactly south (or east/west for that matter). So we were never going to be the ideal candidate for solar. But the system seems to work well enough from around March to October/November that on a good day we can still get £2-£3 of feed in credit and only pay around a £1 to fill the batteries up overnight. This in comparison to a day without solar or batteries, where the bill would be nearer to £6 or £7 a day (we're a high usage household). So potentially a minimum daily saving of around £4-£5 regardless of whether the sun shines or not. But on a good day, we're effectively making a couple of quid instead of paying 6 or 7. So I think using batteries to load shift probably yields the biggest saving, as that can happen all year round. The installation costs should also be a lot cheaper, since there's no scaffolding and roof work etc. I've not run the actual numbers for a while. But the system should pay for itself in around 4-5 years, and I've assumed a decade or so of life from the batteries and a good bit longer than that for the panels and inverter.
@@kevanswift7797in terms of cycle count it's no different to charging up every day from the solar and then discharging overnight. I've just inverted the usage cycle. The batteries don't seem to care if it's day or night. They're warrantied for 10 years at 70% SoH and are usable 0-100% SoC since the usable portion of the storage is smaller than the total capacity, so it's never fully charged or discharged. After 2 years, they're still at 97% SoH. The whole system should pay off in around 5 years, and the kit is already cheaper now than when I bought it.
@@Onyourbiketoo I'm in that situation now. The best ROI is to generate your own energy for your consumption requirements. Any import/export with your energy provider won't give as good a ROI. However, seeing as most of the cost of installing solar is labour/scaffolding/etc then you might as well install as many panels as you can, charge a battery and sell the excess. This whole export at 15p / import at 7.5p is worth doing if you have excess in your system but does not make sense to install a system specifically for that use case.
A lot it depends on the size of the house and use, as the owner of solar panels and a Tesla PW2 I can say there is no way the battery will make a return on investment in my case but the solar panels easily will.
So in theory you can just fit batteries and no panels, wont be as much of a saving but ive been thinking for awhile about just a battery setup. But from is being said if you can buy 10p during the night for use in the day (normally 20p), so if you fitted 15kWH battery system you could theoretically power your home from the batteries alone, though smart usage you could sell back to the grid at peak or profit hours. But more importantly half your energy bills
I see someone has been googling me.🙂 Yes I work at Arm, but just to be clear, this project has nothing to do with my day job. Its just a hobby project by a self confessed geek to try and make myself feel better about the £££ I spend on the system. Tom
@@696grocuttt it was very fascinating to see the degree of complexity, optimisation and subsequent arbitrage from the different power prices. My day job involves power modulation of +/- 30MW at an industrial site, depending on the spot power price. Our modulation strategy looks very primitive to your home setup, and this has inspired me to make some improvements😁
I know you follow rules that is existing but do you check that each solar and battery system have a smoke alarm DIRECTLY above the system and also fireproof board above the units in the ceiling? Yes i know solar edge cuts power when it looses connection with the inverter or it sees an arc fault but still good to go beyond the code for fire resistance. I also have an failed solar edge inverter that absolutely had a large flame and explosive short circuit innside it but it was far from spreading to anything else as the cabinet itself never melted, only the circuit boards before the panels shut down I have solar edge system in my home and concider to have battery backup some day, and thinking making a totally fireproof cabinet for the whole system that in case of fire closes innside ventilation and have a 100mm pressure releif steel pipe to the outside so in case of complete meltdown it will just spit out all flame and smoke to the outside. I want the inverter and battery innside because of all inefficiency heating to go innside my home and for it to never see moisture but have the safety of an outdoor mount 😅 never expect that to be done by anyone else 😂
Typically you would want as many Powerwalls to match your peak house backup demand, since that’s usually higher than your peak solar output. But if you have only one Powerwall (5kW charge/discharge capability) and say 7kW peak solar output, worst case scenario of your house using no power: on grid, the Powerwall will absorb 5kW and you’ll simply export the rest to the grid. Off grid, the gateway will shut off the solar if it exceeds 5kW. In general it will work fine.
Using a battery has a cost - say 15p per kWh. Great project though. I'm going to steal a few ideas from it. Didn't Tesla prevent a lot of the API usage? How do you command the battery to charge / discharge automatically? EDIT: the battery costs that I'm talking about is the cost of buying and using the battery itself per kWh. You need to add that to the cost of electricity used to charge it (or the opportunity cost of not exporting it).
Unrelated but I have a question. Had a electrician replace my fusebox with a fusebox RCBO board. I mentioned should I get a certificate from building control like when they add a new circuit outside of the main consumer unit - Octopus Heat Pump install. Was told that they don't need to report this as it is just replacing the consumer unit no re-wire. They instead gave me a test certificate and said to put this with the existing building control certificate is that right?
Octopus Intellegent plans pretty much have all this functionality. I have been very impressed with the complicated scheduling it does with my Powerwall, solar and EV on Octopus Intelligent Go. I am tempted to get second Powerwall which would mainly allow a lot more use of cheap overnight grid power in winter for my heat pumps and electric floors.
I got three quotes for this battery upgrade, Artisan were a bit more expensive than the others but not by that much. However Artisan were much much easier to deal with and I care about both my time and the quality of the work done in my house. Tom
How about doing a discussion on V2G .. I’ve been looking for a Bidirectional charger 🔌 available on the market but can’t source an approved unit …. As we have 2 EVs would be a big advantage to use as home battery
@@696grocuttt Really like the look of it, what brand door system sir? As someone who deals with changing my circadian rhythm fairly frequently your GitHub software sounds brilliant Andrew.
@@patricklyons7683 It's actually something I made myself. When we got the house the only way of controlling the door was from a wireless remote. Fortunately the door opener had some low voltage controls so I hooked them into a few nice tactile buttons with built-in LEDs.
Interestingly the Tesla doesn’t comply with PAS63100 in a 3 battery format unless it’s installed outdoors or in a separate uninhabited building. Or in an attached garage with 60min fire separation to the house
I think this is getting to the point that if the customer is well infomored and maybe a disclomer if the still.wsnt to go ahead... Otherwise these rules are going to smoother battery installation as not all houses are suitbale for installation of batteries outdoors
@@bramcoteelectrical1088 a lot aren’t suitable for internal either, the PAS 63100 regs make it very difficult to find suitable locations on small houses
@@whlphil 100% and this is the issue I am also having as an installer only way is by informing customer and then getting a signed waiver saying they know the risks
Honestly if you have an electric car and solar, considering each PW2 only has 13.5kWh and a model 3 has 57.5kWh usable you can't even fully charge your car off 3 of them to it's actually not completely unreasonable assuming you are not going to be there during the day due to work and there are some days you wont even come home even the capacity isn't overkill and considering the car charges at 6klW 15kW of power delivery also isn't nuts. though I do think that Tesla should be the first to be moving on DC charging from home batteries, even if you have to buy a DC charger there should be a DC out port.
Hi Jordan, great video, what's your views on using the gateway used as a consumer unit housing switch gear, this is of course a combustible material used in a domestic setting? Powerwall 3 should change the landscape a bit for battery storage
Been doing similar but not as advanced on my Victron system since it was installed early last year, total cost for and electric last year was minus £400. The code for my scheduling runs directly on the Cerbo GX in Node Red. We made £200 from saving sessions but missed one of the £4 per kWh ones due to a smart meter issue. PS Did you test if the solar throttles down in a grid loss situation and the batteries are full? In this scenario the powewall should increase the frequency and the SE inverter will start to throttle down eventually stopping all production at a set frequency.
Some maths - please correct if I’m wrong. Using say 12 kWh per day at 25 pence is £3 per day. Buying and fitting a 10 kWh battery £7k. If it lasts 10 years that’s £1.91 per day. Cheap overnight charge at 7.5p per kw and 2 kw at standard rate = approx £1.25 plus the battery cost of £1.91 = £3.16 per day. Lots of variables I know but interesting.
Pretty much! I came to similar figures when deciding or not to buy our battery. In the end I did. The challenge is that it's not a straightforward calculation, or rather it isn't once you add solar and other tariff choices. During the pandemic, our E7 prices went to 44p peak but night went down to 11p so that was a clear case of charge @11, avoid 44. Recently changed to Octopus Agile and let the battery charge on solar and it integrates with the tariff data to only charge a bit say cheapest, to avoid the peak pricing. I prefer not to fully cycle the battery each day. The often missed point with a battery is that it is typically around 80% round trip efficiency so, to save 10kWh might require consuming 12-14kWh It's a fun game!
Thank you, and as somebody about to start from scratch is good to see your maths, but I’m also thinking that once your ‘in’ your £1.91 per day is locked for 10 years, bought and paid for, but the 7.5p per kw is todays rate and in 5 or 10 years time that’ll be much more, double ? Thoughts ?? and to add another curve ball in my head, if I take the 7k per battery and put it into my investment portfolio instead of a battery I can earn circa 5%pa so circa £1 day and if I compound that over 10 years .. we’ll, hmmmm 🤔
@@Onyourbiketoo You may also want to join Octopus Agile forums, whether you go that tariff or not. Reason being that there are frequent discussions based on the ROI of using the battery storage to trade energy. Prices aren't fixed at 7.5p but vary every 30 mins. Buy cheap and sell high. Equally, some other tariffs are buy 7.5p, sell 15p. Plenty to chew on.
Issue is saving planet and backup power and having the option to store and sell energy back. Sometimes the costs dont add up...but it most definitely adds value to the house when you sell
@@Onyourbiketoohorse for courses thou ...the issue is that you can put in a bank and investments but its.kinda cool to have tour own energy plant and having batteries and solar add overall value to a property. Alot of people now days looking to be more eco. So the over cost is mitigated by.yhr overall value perceived by a new house buyer. This ahas happened alot and alos take into account every 5yrs the cost of energy has risen 25%..😊
Hello. Congratulations for the content. Pls tell me something: With such power, why not recommend to customer to have a fire extinguisher around, to use in case of set fire on the batteries. Thank you.
Like 🫛 weeing on a bonfire😂no help at all Just get out snd stay out. Risk of that happening is small thou due to the stable battery chemistry and the low stress of charging compared to say a car battery. Risk is low but still present.. You roll your dice....you take your chances
There’s actually a bit of a trick going on and they didn’t make a UK model. American houses get two 120v phases at 180 degrees apart. So the American powerwall has two 120v inverters. If you look at the uk installation manual you’ll see it’s actually the American version and they get you to wire the two inverters in series to produce the 240v we need over here.
@@CalMUK91 If you want redundancy then you need multiple powerwalls, both here and in America. In America the two 120v inverters end up powering different circuits, so if either fails you drop part of the load.
The cost of these things is just horrendous! Unless you have money to burn, it makes no financial sense. ROI is well over 6-7 years. How do you feel prepaying your energy for the next 7 years?
I usually use around 14KWh a day and in the winter the solar can dip as low as 0.5KWh for a whole days production. I could probably run for about 3 days off grid in the winter, but not more than that. In the summer it's a different story as we can peak at 50KWh production in a day. Having said that, in both summer and winter I can usually export at a higher price than I can import at over night. So it doesn't make sense to go fully off grid.
I'm happy having solar on my roof and scheduling my car charging overnight. No problem at all. However I firmly believe that the duty of storing surplus energy and supplying that said energy back during peak demand is absolutely a job for the National Grid. That and having two cars on my driveway full of batteries with a higher energy density than TNT is plenty enough, I don't need to bolt any to my walls.
Too many batteries becomes the law of diminishing returns... Its all about how much amperage your inverter and battery can out put in a given time. Take LVL byd batteries thery can take a 400amp charge ! And you can get a victron setup to match that charge rate. Means you can ram enough power in during low night rates. Also if you use telsa ppwer.walls innoff grid mode...in small print it invalidates the warrenty i wqs told by anotjer battery manufacturer..not.cjexk to see thats true.😮 Been there had the install t shirt😂
DNO suck! Outdated network that hammers the ability to export back to the grid. Make it harder that needed then expect a customer to pay for a whole upgrade for the street costing thousands!
@JohnR31415 I read somewhere that Tesla used to offer a good API but they've slowly dumbed it down because they're starting up a new company called Tesla Energy. Tesla don't want you messing about with their stuff - thus breaking the warrenty.
@@jchidley you can control a couple of things, but compared with the API for GivEnergy… it’s night and day. Tesla really ought to do better, they are a tech company first and foremost.
@@lehoff It's not just Tesla, it's almost every manufacturer now. Everyone wants to use your data for their purposes without asking permission or paying you for it. I limit the number of internet connected devices for this reason but it's impossible to avoid it all together.
It is not worth having even one Tesla Powerwall. You have to pay in the region of £1 per watt hour. You can get a car with an 80kwh batery for only £40k. There are far better altern ative offerings around. The price of batteries is now less than £50 per kwh so Tesla is taking you for a ride.
The problem is Code requirements. Tesla Powerwall, Enphase Encharge, Canadian Solar EP Cube... all those batteries are expensive but certified and meet Electrical Code for various county/county/province/state requirements to be connected. If you went DIY it may be cheaper, but if you ever get inspected for whatever reason, you can face fines in tens of thousands of $$$ and more. And if you ever start a fire, no insurance would cover you ever as well. Yes, those batteries are expensive but they do have their benefits over and above the cost to get them, plus cost per kwh from the utilities just keeps getting higher. At least Tom is leveraging those batteries for as much as he can get for them.
I fit Powerwalls regularly. You’re paying for the quality of their proprietary backup system. Nothing else comes close, whatever others claim. Never had a faulty product yet. Always outperformed our other systems over the winter. Temperature never an issue.
@@99heinze Rubbish. There is nothing magic about a powerwall. Just the extortionate price per kwh. Similar battery chemistry gives similar cold weather performance.
@@rogerphelps9939 You're not seeing the scale involved here. Tesla is making maybe in the 10's of thousands of PW... meanwhile they're making millions of vehicle batteries, per year.
Well it’s not really proven to help the environment, just as batteries in cars are not the future, lithium batteries are not sustainable. It’s a nice tech project to play with but it really doesn’t make your life easier. If anything it can open your home up to being hacked and messed with.
Nice for the Rich, Do you ever think you will do a video about Octopus Export Tariff, I mean what NICEIE certificate do they even need. Safety or Installation... Such a pain for 800w Eco flow money cheap saving idea, With the added Building Control notification octopus have totally ruined idea for Eco flow PowerStream.
It's not even really about being clever, like if your willing to plug away at it and look at examples of things that are similar to what you are trying to do, then breaking those example down even further into their basic constituents like anyone who isn't a complete dummy can do it, it's more about do you want to put in the time, because you are probably talking about months assuming you put in a couple of hours a night into it, to basically teach yourself how to do what you want. This is assuming you have never done any programming before in your life, someone who is trained in the subject can probably throw something together is a couple of days that works minimally, just use comments a lot so your code is basically example code so you don't lose track of what you are doing.
He talks about environmental benefits but how long does it take to balance out the impact on creating those batteries and solar panels and then their disposal?
Not sure about the batteries but when I got the original solar install shown in the video it worked out at around 2 years before it breaks even from a co2 point of view. Which given the panels and inverter have a 25 year warranty isn’t bad
Given that the batteries are effectively cleaning up the grid by using the cheap wind/solar and replacing dirty backup options like peaker plants, they should be environmentally good in a short time.
@@stewartstewartstewart labels *always* go somewhere. Maybe the last guy mixed two ip as they were applied, maybe they’ve fallen off and been taped back on backwards… For the sake of two short runs of flexible conduit, which would make the installation obvious.
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7:46 - Do something with focus on camera, literally after few minutes eyes start to hurt when watching blurred videos. Take a look at your own video. Does the person who record this, see its out of focus???
Do you have to be an electrician many people can talk a lot and know nothing.
@@orion310591RSbuy some glasses
I love that you interviewed the owner about his IOT system. This is where technology and electricity can be a huge benefit to owners of homes.
Very interesting, I wonder if he has an EV as I find use of the EV is less predictable and charging it with solar would mess with the schedules programmed
HomeAssistant is absolutely fantastic. There are two projects to try out for this kind of optimisation - EMHASS, which uses linear programming to figure out the optimal charge and discharge based on a machine learning prediction of your home usage (based on previous usage + seasonality factors), energy costs (and payments for export) as well as your solar forecast through Solcast.
The other is BATPRED which is integrated more fully with HomeAssistant and does a similar thing - the Author, Trefor, is very communicative and always improving it, including adding machine learning prediction of your household usage. It also integrates with the Octopus Energy integration for HomeAssistant as well as with your EV charger so you can pretty much set it and forget it.
Having a SolaX inverter and 15Kwh SolaX batteries installed and got fed up with the crap app, I ventured into Home Assistant and would never consider looking back.
Agreed. I had home assistant before I got solar. Now it's just even better.
There is a mega data lag as the data has to poll to a china sever😢i wouod day thatnthr no1 complaint from customers is the data lag.
5min data polling
Great video! Love the wider content on Home Assistant - just started playing around with HA myself and will look at Thomas' coding. Would love more content in this area! Great work Jordan & team.
Great to hear!
We're with Octopus Go (despite not having an EV), just added a second Powerwall 2, and with 5kW inverter on 6.4kWp panels in Devon. The second powerwall gave us the right size of storage so that in summer we will never use peak rate electricity. Winter we are yet to find out, but should be only occasional. Octopus Go overnight rate is very low at 8.5p/kWh.
Nice install. How did you get all that past the DNO though? Is it a three phase supply? With the 6kw solar edge you're over the 17kW per phase limit for G99. G100 can be used to limit export but even with an export limitation scheme in place they still wont let you have more than 17kw of total inverter capacity per phase.
3:20-Increasingly, manufacturers are encouraging you to account for heat derating of the breakers. The thermal overload trips quicker in a hot environment, so they suggest increasing the size (so long as you also increase the cable to account for it). But there is very small VD tolerance on a lot of the generation, so might already be running a size up on the cable
The gentleman is describing time efficiency use & scheduled device usage. Very clever indeed & as a night lorrry driver woukd be great to activate dryer at cheap times of mirnjng... whilst not disturbing neighbours
I think the subwoofer on my TV's soundbar shit itself when the bass kicked in atound six minutes in.
Great video, beautiful installation ! nice to see the Tesla batteries, I personally have 23.5kW puredriveII installation with a 3.6kw Solis Inverter. G98 approval at the moment, trying to go to G99 and a 6kw inverter. The one thing I noticed though is that producing back from the batteries will use energy and quite a bit as well.... So importing at 7.5ppkW (OIG) and exporting it at 15ppkW it is making only say 5p per kW, not sure if I want to cycle my batteries for this.... food for thought 🙂
Great video. Totally agree with Tom that all systems should have an open API so that everyone can do this as it's better on a cost perspective and better on the grid to help it be as green as possible.
I can't fit solar but I have an Enphase battery system. They are a bit behind with the API being read-only, and off grid and octopus api integration coming later this year apparently. But for me the units being mounted outside and the 3 batteries capable of over 10Kw continuous and up to 16Kw for short periods it was overall the best option.
Overnight the batteries can be charging at 9.6KW, car at 7Kw and the washing machine running etc... I have seem it pulling just over 18Kw from the grid. I'm glad I'm on a 100A supply :)
well, it depends.. what you want to do? i mean if you want to use a Heat pump based heating with 2 days worth of independency from the grid, well then this is not even enough, (150m2 and upwards)
You are absolutely right. Even if you just used the thing to store cheap off peak electricity it would still not be adequate.
@@rogerphelps9939 A friend has 2 powerwalls which covers most of his daily usage including his heat pump. The main reason I got added the two extra powerwalls is we're planning on adding a heat pump in the future and I wanted enough storage to cover a days usage (charging of overnight cheap electricity).
What do you think of server rack storage batteries?
If your not as techie (such as Tom👍🏼) with home assist, Victron now has Dynamic ESS, which looks like does something similar.
BYD LVS are stackable and very neat and they work with Victron.
I love byd😊😅 and victron is the Bollocks 😂😊
Is there a return to be made by just buying, storing and selling back to the grid without solar?
I use HASS to manage Zigbee and connect everything to Home on Apple and Alexa.
So at 3:51 "the mains come in here and then split into backup and non backup" So do I need two cables to my garage ? From the incoming smart meter to my garage battery and then from my battery back to the house? Or is there ‘kit’ that can use a single 3 core ‘bidirectionally’ please? (I have an armoured 3 core from the incoming main through an isolation switch to a second distribution board in the garage that’s just powering a new utility room but in anticipation of fitting an EV charger.)
i use Home Assistant and have managed to use it to automate many parts of my home. I have a similar setup and am hoping to add a second powerwall in the future. Great to see what Tom created. I will be downloading his add on and trying it out. Thanks for sharing.
Chap with drill should learn to allow drill bit to cut through, rather than push or force the drill bit through the material. Forcing can ruin drill bit via overheating & damage hidden items past the point you wish to cut into.
excellent installation - just going to watch the last bit about home assistant - shame our video with the Plaid didnt happen but it was a good bit of fun on the day. Same here 3 x PWs / HP / Solar and two 22 kW car chargers but on three phase which I think is king as the batteries dont think as l1 / l2 / l3 but as one big battery so divide out where needed - keep up the good work
I use Home assistant alongside my GivEnergy system the main addons are GivTCP to bring the GivEnergy data and control into home assistant and Predbat which does all the battery prediction work outlined in this video.
Nice project. And it is good to have options available for people who know how to manage power.
I'd be interested to hear how you approach the DNO to upgrade their approval from the default 3.65KW.
Great video thankyou. I understand why they've done this so that the Tesla can provide the same instantaneous Watts that the Grid could provide ie 13kW.
Do you guys have to put up battery type/chemical composition stickers and warnings for fire firefighters?
Not normally i do battery installation and dont have to do that just making sure there placed in a safe location in case of fire
Been doing a very similar thing with homeassistant, Tesla add on, octopus intelligent for a few years.
Are the powerwall 2 battery units still avalible?
Great Video! Im also using Home Asisstant for my Balcony Solar System, it is a little tricky to set up but when it works its really Great :)
In a few of your Videos the Audio is clipping a LOT, that is really annoying to listen to with Headphones, just lower the Decibel of the Microphones a bit thanks :/
Great video! A lot of our customers seem to going down the home assistant option for Solar/Battery and EV
Jordan what’s your thoughts on bi directional rcbos . I believe the mcg double poles are bi directional , you have replaced them with the proteus which are not bi directional.
Especially with Amd3
I'm pretty sure those Proteus ones are bi directional it doesn't actually require rcbos at all so a bit directional MCB would be just fine
RCD protection not required if you read the manual carefully.
@@bramcoteelectrical1088 I’m yet to see why an mcb can’t be run in reverse . Can you tell me ?
@@bramcoteelectrical1088 I’m not convinced. I understand why a sensitive coil In an rcd can fail . I can’t understand why a bi metallic strip on overload or short circuit wouldn’t operate regardless of which way the current flows .
Very interesting and great video. I live in the South of France. Here, solar makes a lot of economic sense as long as you can consume the produced electricity yourself. But as soon as batteries get involved, you are losing money.
I used to do all of that solar prediction stuff back when my feed in tariff was half the off peak rate I paid on Octopus Go. So it made sense to charge the battery up with excess solar instead of taking it out of the grid. But once they raised the export tariff to double the off peak rate, it no longer made financial sense to bother.
All that happens now is the batteries charge up overnight, then the house runs off a combination of the batteries and any solar I generate. On a good day, that typically means the excess solar charges the batteries back up to 100% in the morning then I export the rest over the course of the day. At the end of the day I then dump whatever's left back to the grid and then charge up again overnight.
All done in Home Assistant with Node Red and the Solaredge local Modbus over IP integration. No cloud API's required.
So, if you were a potential new, from scratch customer would you advocate just the power wall(s) and not bother with the solar panels ?
So charging during night off peak then discharging during the day how long will the batteries last before failure then cost of replacement. Have you taken this cost into account ?
@@Onyourbiketoo the batteries on my system are DC coupled, and operate using the solaredge inverter. So it's not quite an apples to apples comparison with a Tesla Powerwall as mine aren't a standalone product. They need to solar inverter to connect to them to the house/grid.
Also, when we got the batteries, they were still VAT-able unless installed with a solar array. That's changed now, so you can get the battery storage on its own without paying the VAT. That's effectively a 20% saving or thereabouts.
We have a fair bit of low lying tree coverage, and aren't positioned exactly south (or east/west for that matter). So we were never going to be the ideal candidate for solar. But the system seems to work well enough from around March to October/November that on a good day we can still get £2-£3 of feed in credit and only pay around a £1 to fill the batteries up overnight.
This in comparison to a day without solar or batteries, where the bill would be nearer to £6 or £7 a day (we're a high usage household). So potentially a minimum daily saving of around £4-£5 regardless of whether the sun shines or not. But on a good day, we're effectively making a couple of quid instead of paying 6 or 7.
So I think using batteries to load shift probably yields the biggest saving, as that can happen all year round. The installation costs should also be a lot cheaper, since there's no scaffolding and roof work etc.
I've not run the actual numbers for a while. But the system should pay for itself in around 4-5 years, and I've assumed a decade or so of life from the batteries and a good bit longer than that for the panels and inverter.
@@kevanswift7797in terms of cycle count it's no different to charging up every day from the solar and then discharging overnight. I've just inverted the usage cycle. The batteries don't seem to care if it's day or night.
They're warrantied for 10 years at 70% SoH and are usable 0-100% SoC since the usable portion of the storage is smaller than the total capacity, so it's never fully charged or discharged. After 2 years, they're still at 97% SoH.
The whole system should pay off in around 5 years, and the kit is already cheaper now than when I bought it.
@@Onyourbiketoo I'm in that situation now. The best ROI is to generate your own energy for your consumption requirements. Any import/export with your energy provider won't give as good a ROI. However, seeing as most of the cost of installing solar is labour/scaffolding/etc then you might as well install as many panels as you can, charge a battery and sell the excess. This whole export at 15p / import at 7.5p is worth doing if you have excess in your system but does not make sense to install a system specifically for that use case.
A lot it depends on the size of the house and use, as the owner of solar panels and a Tesla PW2 I can say there is no way the battery will make a return on investment in my case but the solar panels easily will.
I wonder where the solar panels where made?
They're LG panels, so I think they came from either South Korea, or Huntsville, Alabama.
Tom
So in theory you can just fit batteries and no panels, wont be as much of a saving but ive been thinking for awhile about just a battery setup.
But from is being said if you can buy 10p during the night for use in the day (normally 20p), so if you fitted 15kWH battery system you could theoretically power your home from the batteries alone, though smart usage you could sell back to the grid at peak or profit hours. But more importantly half your energy bills
I see Thomas works for ARM😮! Must be a very interesting and intelligent guy.
I see someone has been googling me.🙂
Yes I work at Arm, but just to be clear, this project has nothing to do with my day job. Its just a hobby project by a self confessed geek to try and make myself feel better about the £££ I spend on the system.
Tom
@@696grocuttt it was very fascinating to see the degree of complexity, optimisation and subsequent arbitrage from the different power prices. My day job involves power modulation of +/- 30MW at an industrial site, depending on the spot power price. Our modulation strategy looks very primitive to your home setup, and this has inspired me to make some improvements😁
I know you follow rules that is existing but do you check that each solar and battery system have a smoke alarm DIRECTLY above the system and also fireproof board above the units in the ceiling?
Yes i know solar edge cuts power when it looses connection with the inverter or it sees an arc fault but still good to go beyond the code for fire resistance.
I also have an failed solar edge inverter that absolutely had a large flame and explosive short circuit innside it but it was far from spreading to anything else as the cabinet itself never melted, only the circuit boards before the panels shut down
I have solar edge system in my home and concider to have battery backup some day, and thinking making a totally fireproof cabinet for the whole system that in case of fire closes innside ventilation and have a 100mm pressure releif steel pipe to the outside so in case of complete meltdown it will just spit out all flame and smoke to the outside.
I want the inverter and battery innside because of all inefficiency heating to go innside my home and for it to never see moisture but have the safety of an outdoor mount 😅 never expect that to be done by anyone else 😂
How many solar panels to run two powerwalls? At least 10KW I assume, or is there also an additional buffer amount required?
Typically you would want as many Powerwalls to match your peak house backup demand, since that’s usually higher than your peak solar output. But if you have only one Powerwall (5kW charge/discharge capability) and say 7kW peak solar output, worst case scenario of your house using no power: on grid, the Powerwall will absorb 5kW and you’ll simply export the rest to the grid. Off grid, the gateway will shut off the solar if it exceeds 5kW. In general it will work fine.
Using a battery has a cost - say 15p per kWh. Great project though. I'm going to steal a few ideas from it. Didn't Tesla prevent a lot of the API usage? How do you command the battery to charge / discharge automatically?
EDIT: the battery costs that I'm talking about is the cost of buying and using the battery itself per kWh. You need to add that to the cost of electricity used to charge it (or the opportunity cost of not exporting it).
Where do you get that 15p/kWh from?
That's why Victron is better, completely configurable, though low voltage high current has its issues.
@@andyhodchild8 If I wanted fine control over my setup, and could put in the effort to manage it effectively, I'd pick Victron for that reason.
15p/kWh only for good people and E7 tarrif, 7.5p available for EV’ers
Victron 👍
Unrelated but I have a question. Had a electrician replace my fusebox with a fusebox RCBO board. I mentioned should I get a certificate from building control like when they add a new circuit outside of the main consumer unit - Octopus Heat Pump install. Was told that they don't need to report this as it is just replacing the consumer unit no re-wire. They instead gave me a test certificate and said to put this with the existing building control certificate is that right?
Octopus Intellegent plans pretty much have all this functionality. I have been very impressed with the complicated scheduling it does with my Powerwall, solar and EV on Octopus Intelligent Go. I am tempted to get second Powerwall which would mainly allow a lot more use of cheap overnight grid power in winter for my heat pumps and electric floors.
Been rude about other peoples work, when your own work is not flawless.
They do talk a good talk don’t they.
Can see why artisan are so expensive.
Their name is very apt.
I got three quotes for this battery upgrade, Artisan were a bit more expensive than the others but not by that much. However Artisan were much much easier to deal with and I care about both my time and the quality of the work done in my house.
Tom
How about doing a discussion on V2G .. I’ve been looking for a Bidirectional charger 🔌 available on the market but can’t source an approved unit …. As we have 2 EVs would be a big advantage to use as home battery
What is the dual green & red button item on left @18:40approx??
If you mean the ones to the left of the light switch, they're just the open/close buttons for the garage door.
@@696grocuttt Really like the look of it, what brand door system sir? As someone who deals with changing my circadian rhythm fairly frequently your GitHub software sounds brilliant Andrew.
@@patricklyons7683 It's actually something I made myself. When we got the house the only way of controlling the door was from a wireless remote. Fortunately the door opener had some low voltage controls so I hooked them into a few nice tactile buttons with built-in LEDs.
@@696grocuttt Looks sweet, so jealous of the industrial polycarbonate lit kit. If you ever dig out the info l'm going to copy u
Interestingly the Tesla doesn’t comply with PAS63100 in a 3 battery format unless it’s installed outdoors or in a separate uninhabited building. Or in an attached garage with 60min fire separation to the house
I think this is getting to the point that if the customer is well infomored and maybe a disclomer if the still.wsnt to go ahead...
Otherwise these rules are going to smoother battery installation as not all houses are suitbale for installation of batteries outdoors
@@bramcoteelectrical1088 a lot aren’t suitable for internal either, the PAS 63100 regs make it very difficult to find suitable locations on small houses
@@whlphil 100% and this is the issue I am also having as an installer only way is by informing customer and then getting a signed waiver saying they know the risks
Good video minus the audio issues with the mics
Lee seems to have stopped talking about a French egg, I can’t remember the last time he mentioned an oeuf. 😂😂😂😂
Honestly if you have an electric car and solar, considering each PW2 only has 13.5kWh and a model 3 has 57.5kWh usable you can't even fully charge your car off 3 of them to it's actually not completely unreasonable assuming you are not going to be there during the day due to work and there are some days you wont even come home even the capacity isn't overkill and considering the car charges at 6klW 15kW of power delivery also isn't nuts.
though I do think that Tesla should be the first to be moving on DC charging from home batteries, even if you have to buy a DC charger there should be a DC out port.
Hi Jordan, great video, what's your views on using the gateway used as a consumer unit housing switch gear, this is of course a combustible material used in a domestic setting? Powerwall 3 should change the landscape a bit for battery storage
Which we are still waiting for , very frustrating.
Been doing similar but not as advanced on my Victron system since it was installed early last year, total cost for and electric last year was minus £400. The code for my scheduling runs directly on the Cerbo GX in Node Red. We made £200 from saving sessions but missed one of the £4 per kWh ones due to a smart meter issue. PS Did you test if the solar throttles down in a grid loss situation and the batteries are full? In this scenario the powewall should increase the frequency and the SE inverter will start to throttle down eventually stopping all production at a set frequency.
Alot of systems will frequency shift to knock thr incerter off line if batteries are full.
Victron and fronius are my installation favourite 😍
Please inform us what the 2-light box (green and red) item on the left side of equipment was for?
It's just a few buttons to open and close the garage door
Its the buttons for the bat cave😂
Wow
Very clever guy
This sounds great and the future
Dude said the number one reason why there's a log jam in networking devices.🎉
McLovin’ has come a long way fair play to him👏🏻
Have 2 resu LG on a growatt and an alpha b3
Never have enough batteries , it's not enough room that's the issue
Some maths - please correct if I’m wrong. Using say 12 kWh per day at 25 pence is £3 per day. Buying and fitting a 10 kWh battery £7k. If it lasts 10 years that’s £1.91 per day. Cheap overnight charge at 7.5p per kw and 2 kw at standard rate = approx £1.25 plus the battery cost of £1.91 = £3.16 per day. Lots of variables I know but interesting.
Pretty much! I came to similar figures when deciding or not to buy our battery. In the end I did.
The challenge is that it's not a straightforward calculation, or rather it isn't once you add solar and other tariff choices.
During the pandemic, our E7 prices went to 44p peak but night went down to 11p so that was a clear case of charge @11, avoid 44.
Recently changed to Octopus Agile and let the battery charge on solar and it integrates with the tariff data to only charge a bit say cheapest, to avoid the peak pricing. I prefer not to fully cycle the battery each day.
The often missed point with a battery is that it is typically around 80% round trip efficiency so, to save 10kWh might require consuming 12-14kWh
It's a fun game!
Thank you, and as somebody about to start from scratch is good to see your maths, but I’m also thinking that once your ‘in’ your £1.91 per day is locked for 10 years, bought and paid for, but the 7.5p per kw is todays rate and in 5 or 10 years time that’ll be much more, double ? Thoughts ?? and to add another curve ball in my head, if I take the 7k per battery and put it into my investment portfolio instead of a battery I can earn circa 5%pa so circa £1 day and if I compound that over 10 years .. we’ll, hmmmm 🤔
@@Onyourbiketoo You may also want to join Octopus Agile forums, whether you go that tariff or not.
Reason being that there are frequent discussions based on the ROI of using the battery storage to trade energy. Prices aren't fixed at 7.5p but vary every 30 mins.
Buy cheap and sell high.
Equally, some other tariffs are buy 7.5p, sell 15p.
Plenty to chew on.
Issue is saving planet and backup power and having the option to store and sell energy back.
Sometimes the costs dont add up...but it most definitely adds value to the house when you sell
@@Onyourbiketoohorse for courses thou ...the issue is that you can put in a bank and investments but its.kinda cool to have tour own energy plant and having batteries and solar add overall value to a property.
Alot of people now days looking to be more eco.
So the over cost is mitigated by.yhr overall value perceived by a new house buyer.
This ahas happened alot and alos take into account every 5yrs the cost of energy has risen 25%..😊
Such a massive house! In London that would be in 2-3 millon territory at least.
Good video - but please keep an eye on your audio levels - very high level and distorted on this one
We do apologise, we had a few issues with the camera audio settings but it is fixed now and should not happen again.
@@artisanelectrics No worries! It just wasn't up to your usual high standards!
Really interesting. Thanks!
Glad you enjoyed it!
Hello.
Congratulations for the content.
Pls tell me something:
With such power, why not recommend to customer to have a fire extinguisher around, to use in case of set fire on the batteries.
Thank you.
Because if those batteries set on fire a fire extinguisher isn’t doing anything
Like 🫛 weeing on a bonfire😂no help at all
Just get out snd stay out.
Risk of that happening is small thou due to the stable battery chemistry and the low stress of charging compared to say a car battery.
Risk is low but still present..
You roll your dice....you take your chances
Did your audio setup change? Everybody is clipping like crazy.
Same, thought it was just me
We had a few issues with Audio on the camera, but should be sorted now and hopefully won't happen again!
So you are telling me an american company made it for 220-250v for Europe, UK etc but kept the the imperial sizes haha
There’s actually a bit of a trick going on and they didn’t make a UK model. American houses get two 120v phases at 180 degrees apart. So the American powerwall has two 120v inverters. If you look at the uk installation manual you’ll see it’s actually the American version and they get you to wire the two inverters in series to produce the 240v we need over here.
@@696grocuttt so we get no redundancy then?
@@CalMUK91 If you want redundancy then you need multiple powerwalls, both here and in America. In America the two 120v inverters end up powering different circuits, so if either fails you drop part of the load.
Not a keen powerwall fan guys 😢 victron and byd all the way😂
Very well explained thanks 😎
Glad it was helpful!
OpenQuote sounds like it is an open-source platform, it snot.
Thanks to Tom will try have look at HS
Please do!
Cheers Tom
Love the idea
6:00 "buzz" bar 😅
X number Way Busbar
The cost of these things is just horrendous! Unless you have money to burn, it makes no financial sense. ROI is well over 6-7 years. How do you feel prepaying your energy for the next 7 years?
Could he run off grid in winter i wonder?
I usually use around 14KWh a day and in the winter the solar can dip as low as 0.5KWh for a whole days production. I could probably run for about 3 days off grid in the winter, but not more than that. In the summer it's a different story as we can peak at 50KWh production in a day. Having said that, in both summer and winter I can usually export at a higher price than I can import at over night. So it doesn't make sense to go fully off grid.
Off grid is my speciality it still needs a gas or diesel generator to backup for low sun times
I'm happy having solar on my roof and scheduling my car charging overnight. No problem at all. However I firmly believe that the duty of storing surplus energy and supplying that said energy back during peak demand is absolutely a job for the National Grid. That and having two cars on my driveway full of batteries with a higher energy density than TNT is plenty enough, I don't need to bolt any to my walls.
Too many batteries becomes the law of diminishing returns...
Its all about how much amperage your inverter and battery can out put in a given time.
Take LVL byd batteries thery can take a 400amp charge ! And you can get a victron setup to match that charge rate.
Means you can ram enough power in during low night rates.
Also if you use telsa ppwer.walls innoff grid mode...in small print it invalidates the warrenty i wqs told by anotjer battery manufacturer..not.cjexk to see thats true.😮
Been there had the install t shirt😂
If the technician collaborates with the computer freak, you get the smarthome of the future.
DNO suck! Outdated network that hammers the ability to export back to the grid. Make it harder that needed then expect a customer to pay for a whole upgrade for the street costing thousands!
Nice and learnable ,thankyou .
Still the amount of Co2 created mining the materials for those batteries will never be saved by the owner.
Home assistant is so powerful… but actually controlling the Tesla is a pita.
@JohnR31415 I read somewhere that Tesla used to offer a good API but they've slowly dumbed it down because they're starting up a new company called Tesla Energy. Tesla don't want you messing about with their stuff - thus breaking the warrenty.
@@jchidley you can control a couple of things, but compared with the API for GivEnergy… it’s night and day.
Tesla really ought to do better, they are a tech company first and foremost.
Unfortunately it's like all Tesla stuff they want you to use their kit alone, one of the many reasons I avoid Tesla crap.
@@lehoff It's not just Tesla, it's almost every manufacturer now. Everyone wants to use your data for their purposes without asking permission or paying you for it.
I limit the number of internet connected devices for this reason but it's impossible to avoid it all together.
@@jchidley yeah I use pihole to also limit snooping and data collection. Personal data is the new digital trading currency
Victron Dynanic ESS….. 👍
💯 😊
It is not worth having even one Tesla Powerwall. You have to pay in the region of £1 per watt hour. You can get a car with an 80kwh batery for only £40k. There are far better altern ative offerings around. The price of batteries is now less than £50 per kwh so Tesla is taking you for a ride.
The problem is Code requirements. Tesla Powerwall, Enphase Encharge, Canadian Solar EP Cube... all those batteries are expensive but certified and meet Electrical Code for various county/county/province/state requirements to be connected. If you went DIY it may be cheaper, but if you ever get inspected for whatever reason, you can face fines in tens of thousands of $$$ and more. And if you ever start a fire, no insurance would cover you ever as well. Yes, those batteries are expensive but they do have their benefits over and above the cost to get them, plus cost per kwh from the utilities just keeps getting higher. At least Tom is leveraging those batteries for as much as he can get for them.
I fit Powerwalls regularly. You’re paying for the quality of their proprietary backup system. Nothing else comes close, whatever others claim. Never had a faulty product yet. Always outperformed our other systems over the winter. Temperature never an issue.
@@99heinze Rubbish. There is nothing magic about a powerwall. Just the extortionate price per kwh. Similar battery chemistry gives similar cold weather performance.
@@bradforrester2417 Really. EV batteries have a tougher time of it and are now under $50 poer kwh. Somebody is being conned.
@@rogerphelps9939 You're not seeing the scale involved here. Tesla is making maybe in the 10's of thousands of PW... meanwhile they're making millions of vehicle batteries, per year.
This guy is doomed when skynet takes over ..
😂
😅ya you got me. But at least I know what I’m in for.
5+5+5 = 15!! who knew?
😂
Victron do all this and then you avoid using anything from Tesla.
Nothing wrong with Tesla amazing company just like spaceX
Turn the music off ffs
Well it’s not really proven to help the environment, just as batteries in cars are not the future, lithium batteries are not sustainable. It’s a nice tech project to play with but it really doesn’t make your life easier. If anything it can open your home up to being hacked and messed with.
Couldn't listen anymore folks, your audio was too blown out.
Nice for the Rich, Do you ever think you will do a video about Octopus Export Tariff, I mean what NICEIE certificate do they even need. Safety or Installation... Such a pain for 800w Eco flow money cheap saving idea, With the added Building Control notification octopus have totally ruined idea for Eco flow PowerStream.
Tesla 😍😍
Nasty audio. Go back to normal, please.
We do apologise, we had issues with the audio in the camera but it should be fixed now and should not happen again.
It's not even really about being clever, like if your willing to plug away at it and look at examples of things that are similar to what you are trying to do, then breaking those example down even further into their basic constituents like anyone who isn't a complete dummy can do it, it's more about do you want to put in the time, because you are probably talking about months assuming you put in a couple of hours a night into it, to basically teach yourself how to do what you want.
This is assuming you have never done any programming before in your life, someone who is trained in the subject can probably throw something together is a couple of days that works minimally, just use comments a lot so your code is basically example code so you don't lose track of what you are doing.
Yes. More than zero is too many! 😂
He talks about environmental benefits but how long does it take to balance out the impact on creating those batteries and solar panels and then their disposal?
Not sure about the batteries but when I got the original solar install shown in the video it worked out at around 2 years before it breaks even from a co2 point of view. Which given the panels and inverter have a 25 year warranty isn’t bad
@@696grocuttt this is the information I was after. Thanks
Given that the batteries are effectively cleaning up the grid by using the cheap wind/solar and replacing dirty backup options like peaker plants, they should be environmentally good in a short time.
@@geirmyrvagnes8718 even after the mining of minerals?
@@geirmyrvagnes8718 Not convinced that mining lithium is good for the environment.
Audio is bad and sound cheap
We do apologise, we had issues with the audio in the camera but it should be fixed now and should not happen again.
Yes you can. Tesla is overrated and overpriced. Much better options to install and a lot cheaper with same warranty and operation performance.
Really? You’re paying for their proprietary backup system. Nothing comes close. We’ve never had a faulty system yet.
Which system?
@@99heinze Plenty of systems out there that out perform Tesla for backup and overall performance. I never said they were faulty, just very overpriced
Which system??@@SOMAsolarsystems
@@SOMAsolarsystemscan you name those who is better than Tesla
Might be neat, but it means you’re utterly reliant on labels for maintenance.
@@stewartstewartstewart labels *always* go somewhere.
Maybe the last guy mixed two ip as they were applied, maybe they’ve fallen off and been taped back on backwards…
For the sake of two short runs of flexible conduit, which would make the installation obvious.
👍👍❤❤❤❤
Buying the tesla powerwall doesn't sound genius to me.
Because you are “famous” on UA-cam you charge £2000 for an ev charger 😂😂😂 . C’moon , get a life don’t rip off people !!!