Just to clarify, since this question has come up a couple of times-I really appreciate the feedback! At the beginning of the video, I was referring to the kWh the system will produce annually, but I should have been clearer. When designing systems, we always focus on annual production. That said, I misspoke in the video. I mentioned 55,000 kWh, but the correct figure is actually 59,000 kWh per year. I did clarify it later in the video, but I should have edited out the initial mistake. We all make errors, and I genuinely appreciate you pointing it out! ☀
My preference is low voltage DC strings 140v max but not really practical at this size.. The high voltage DC is scary to me but more efficient at size.. Never was a fan of microinverters because now you have DC and AC on the roof along with many active components that may require service.. I believe he said 100 of those things so odds are that someone over the next couple decades will be on that roof several times lifting panels and swapping some microinverters..
Thanks for the comment Robert. The 460 watt REC module paired with the IQ8X micro, 380 VA rating, has an 1.21 Inverter Utilization Ratio. This inverter utilization ratio is widely acceptable in the solar industry for both residential and commercial and is better than the 1.4 to 1.5 industry standard. A small amount of clipping can occur in ideal conditions with this pairing, but this a drop in the bucket when you take into consideration the non-ideal conditions most of the year. The cost savings, minimal wall space needed, and proximity to the point of connection made Enphase the ideal choice with minimal clipping.
Nice, but... Why on the shingle roof, where you had to make a few hundred penetrations, rather than on the larger metal roof where you could have clamped to the seams and had no penetrations at all?
you really should point out that a lot of the difference with your system is due to advancements in solar technology. Also given the changing attitude of a lot of utilities why did you not include any batteries to help future proof the system so it does not end up with the same fate of becoming obsolete and losing viability.
This was a nice clean video, but today, knowing what I know that net metering credits are getting smaller. I'm in Texas and I installed a 5.6k solar system in 2016 my net metering credits was $0.12 a kwh my light bill would be $5.00 to $20.00 a month then. now in my new house with an 8.6kwh I had a light bill over $200.00 with solar and my net metering credits is only $0.03 per kwh in the winter, $0.0277 in the summer. If you want your solar system to payoff in 5 to 8 years, you need batteries.
Not on this project the comment below sums it up. This system is grid tied and has full net metering so any excess power goes back to the grid and the customer gets full retail rate for the power they produce. This customer also did not loose power enough to justify storage.
Customer probably loves microinverters so much on his home and wanted them on his business. I would've went with a DC coupled battery solution for this application. Even a small cache of energy onsite is worth not having to deal with small power fluxuations for business needs. Likely cheaper too, all things considered.
Kwh is amount of energy PER HOUR not the power. If you say kwh then also tell me the amount of time you produce that in. If it is in one hour then just drop the "h" and tell me the nominal power in kw. Same number.
9 днів тому
With solar you always speak in potential power when talking about the system.. When speaking of actual daily production then you speak in kilowatts produced.. So this monster had the potential of around 400kwh kilowatts per hour of direct sun.. In actuality it is most likely about 1/4 less in optimal conditions and daily production will vary with time of day, time of year and weather.. I would expect that down the road he will invest in some kind of Powerwall battery system if he is not grid interactive because if the grid goes down your solar goes down as well when fully interactive..
Appreciate the comment and after watching back I am realizing why there is some confusion. In the beginning of the video I am referring to kWh that the system will produce on an annual basis I should of been a little clearer there. When we are designing systems we are always looking at annual production. But at the end of the day I gave the wrong production number in that instance I said 55,000 it is 59,000 kWh a year. I clarified a minute or so later in the video but I should of cut that part out, but we all make mistakes and appreciate the feedback.
are you, the presenter, a solar system salesman, owner or some kind of expert? in the earlier part of your presentation, you said, and I quote: "55,000 kilowatt hours". Now how is that even conceivable at this scale ? Have you lost your marbles ?
9 днів тому+1
Pretty sure this adds up to 55kwh not 55.000 kwh which is 229 amps at 240 volts so that must have been a misspeak of 55,000 watt hours.. Pretty sure it is not producing 229,000 amps at peak, be nice if solar was that bad ass..
Haha, sometimes we all lose our marbles! I appreciate the comment, and after watching it back, I can see why there’s some confusion. At the beginning of the video, I was referring to the kWh the system will produce on an annual basis. I should have been a little clearer there. When we design systems, we always focus on annual production. That said, I gave the wrong production number in that instance. I mentioned 55,000 kWh, but it’s actually 59,000 kWh per year. I did clarify it a minute or so later in the video, but I should have cut that part out. We all make mistakes, and I really appreciate the feedback!
I would have liked to see the batteries. Or don't you have any?
9 днів тому+1
This is a direct conversion panel DC to microinverter on each panel AC system so no battery storage.. Lots of wasted solar when the load is not there and no power at night.. having 100 microinverters on the roof means when they go bad someone has to go on the roof and replace them.. That means finding the right one and lifting the panel to change it.. AC on the roof also means higher chances of a lightning strike making it into the building and doing damage.. He did not mention anything about lightning arrestors or if unused power went reverse onto the grid.. By single phase I believe he meant split phase 120/240.. Snow in the Winter is going to be a real bummer..
Thank you for the comment! Luckily, no solar is wasted here. In New York, we have Phase One Net Metering, so all excess power is sent to the grid, and the customer is credited the full retail rate for the power they produce. Over the course of a year, what they produce will be used for this site. The benefit of microinverters is that when one fails, we can use the monitoring system to identify exactly which microinverter needs to be replaced. You’re right, though-it’s a bummer to have to get on the roof, lift a panel, and go through that process. However, the advantage is that the issue is isolated to that single inverter, making it easy to identify and resolve.
Batteries would have been really cool, but we didn’t include any on this project. Fortunately, we still have Phase One Net Metering here in New York, so any excess power is credited at the full retail rate by the utility. Additionally, they don’t experience power outages frequently enough to justify battery storage for this project.
Bro why you want to flame a system or company that was almost two decades old? You would have installed the exact same system almost 20 years ago. Stop acting like a politician and focus on what matters.
not sure if you realized, but you accidentally made a great case against solar by saying how obsolete the 16 year old system was. Pretty much all calculations I've seen assume about 25 year lifespan on the solar system. But from what you've sais it sounds like it was pretty much useless to try to salvage it after 16 years...
Solar itself is fine. The problem is finding a technician to maintenance them for 25 years. Like most things, the approach is always replace instead of repair. Just look at the HVAC market. If you have a 10 year old system, you will be pushed to replace it if you have the slightest problem.
Did panels 16 years ago have 25 year warranties the way that panels today do? I know there are some today that are warranteed for even more years than that.
In my case. Found they were performance-based warranties so its effectively a warranty against factory defects that would kill a panel within 20 whatever years. The microinverters have a much shorter warranty, and it's not the easiest procedure to remove panels to get to failed micro inverters. For me, a 10-yr payback. But, after years, my roof is now needing to be replaced due to age, so I would need to pay for the system to be removed/installed to get the roof replaced. (still trying to delay that cost/work )
@@darwinjina normal roofing is good for minimum 50 years. Your problem is you let it be installed on century old roof. Or you must be american who thinks flapping ruberoid on osb is roofing material.
@@Leaderorsheep whats there to try? Very cheap on no mainenance. Panels just sit in my yard and do what they are supposed to do. Think back on your experience and find out what you did wrong, because its opposite of what you are saying.
@@Leaderorsheep why should i? I dont have suitble wind conditions for that, nothing more. Strange question to ask. Wind is very location dependant when sun doesnt care about location at all as long as it sees sun.
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I loved the 'GRAZIE' license plate! 😀
Just to clarify, since this question has come up a couple of times-I really appreciate the feedback! At the beginning of the video, I was referring to the kWh the system will produce annually, but I should have been clearer. When designing systems, we always focus on annual production. That said, I misspoke in the video. I mentioned 55,000 kWh, but the correct figure is actually 59,000 kWh per year. I did clarify it later in the video, but I should have edited out the initial mistake. We all make errors, and I genuinely appreciate you pointing it out! ☀
So much clipping on those glorious panels
My preference is low voltage DC strings 140v max but not really practical at this size.. The high voltage DC is scary to me but more efficient at size.. Never was a fan of microinverters because now you have DC and AC on the roof along with many active components that may require service.. I believe he said 100 of those things so odds are that someone over the next couple decades will be on that roof several times lifting panels and swapping some microinverters..
Yeah, no MLPEs would be my preference if allowed.
Thanks for the comment Robert. The 460 watt REC module paired with the IQ8X micro, 380 VA rating, has an 1.21 Inverter Utilization Ratio.
This inverter utilization ratio is widely acceptable in the solar industry for both residential and commercial and is better than the 1.4 to 1.5 industry standard.
A small amount of clipping can occur in ideal conditions with this pairing, but this a drop in the bucket when you take into consideration the non-ideal conditions most of the year.
The cost savings, minimal wall space needed, and proximity to the point of connection made Enphase the ideal choice with minimal clipping.
Excellent video! THANK YOU!
Nice, but... Why on the shingle roof, where you had to make a few hundred penetrations, rather than on the larger metal roof where you could have clamped to the seams and had no penetrations at all?
Unfortunately it was not a standing seam metal roof otherwise we definitely would of went that path. This metal roof is corrugated on this project.
What no bird protection, if the last system degraded underneath it was more likely due to both slack cable but also bird damage.
Why no batteries?
probably stable grid power cost and supply. also factor in kwh cost. also, use case may not warrant it.
What was the cost for your customer?
Enphase are gonna clip! IQ8X maxes out @ 380w.
When hot it is far lower and can self derate by upwards of 50%..
you really should point out that a lot of the difference with your system is due to advancements in solar technology. Also given the changing attitude of a lot of utilities why did you not include any batteries to help future proof the system so it does not end up with the same fate of becoming obsolete and losing viability.
This was a nice clean video, but today, knowing what I know that net metering credits are getting smaller. I'm in Texas and I installed a 5.6k solar system in 2016 my net metering credits was $0.12 a kwh my light bill would be $5.00 to $20.00 a month then. now in my new house with an 8.6kwh I had a light bill over $200.00 with solar and my net metering credits is only $0.03 per kwh in the winter, $0.0277 in the summer. If you want your solar system to payoff in 5 to 8 years, you need batteries.
What! No batteries?
Most likely direct grid tie so unused goes reverse to the grid but no sun means no solar power and no storage..
Not on this project the comment below sums it up. This system is grid tied and has full net metering so any excess power goes back to the grid and the customer gets full retail rate for the power they produce. This customer also did not loose power enough to justify storage.
With batteries, you have automatic backup. The way things are going batteries are a must.
Customer probably loves microinverters so much on his home and wanted them on his business.
I would've went with a DC coupled battery solution for this application. Even a small cache of energy onsite is worth not having to deal with small power fluxuations for business needs. Likely cheaper too, all things considered.
Yup now that’s when I stop watching the video no batteries this just your run of mill ..good video tho from what I saw in the beginning
Kwh is amount of energy PER HOUR not the power. If you say kwh then also tell me the amount of time you produce that in. If it is in one hour then just drop the "h" and tell me the nominal power in kw. Same number.
With solar you always speak in potential power when talking about the system.. When speaking of actual daily production then you speak in kilowatts produced.. So this monster had the potential of around 400kwh kilowatts per hour of direct sun.. In actuality it is most likely about 1/4 less in optimal conditions and daily production will vary with time of day, time of year and weather.. I would expect that down the road he will invest in some kind of Powerwall battery system if he is not grid interactive because if the grid goes down your solar goes down as well when fully interactive..
Appreciate the comment and after watching back I am realizing why there is some confusion. In the beginning of the video I am referring to kWh that the system will produce on an annual basis I should of been a little clearer there. When we are designing systems we are always looking at annual production. But at the end of the day I gave the wrong production number in that instance I said 55,000 it is 59,000 kWh a year. I clarified a minute or so later in the video but I should of cut that part out, but we all make mistakes and appreciate the feedback.
are you, the presenter, a solar system salesman, owner or some kind of expert?
in the earlier part of your presentation, you said, and I quote: "55,000 kilowatt hours". Now how is that even conceivable at this scale ? Have you lost your marbles ?
Pretty sure this adds up to 55kwh not 55.000 kwh which is 229 amps at 240 volts so that must have been a misspeak of 55,000 watt hours.. Pretty sure it is not producing 229,000 amps at peak, be nice if solar was that bad ass..
Haha, sometimes we all lose our marbles! I appreciate the comment, and after watching it back, I can see why there’s some confusion. At the beginning of the video, I was referring to the kWh the system will produce on an annual basis. I should have been a little clearer there. When we design systems, we always focus on annual production. That said, I gave the wrong production number in that instance. I mentioned 55,000 kWh, but it’s actually 59,000 kWh per year. I did clarify it a minute or so later in the video, but I should have cut that part out. We all make mistakes, and I really appreciate the feedback!
I would have liked to see the batteries. Or don't you have any?
This is a direct conversion panel DC to microinverter on each panel AC system so no battery storage.. Lots of wasted solar when the load is not there and no power at night.. having 100 microinverters on the roof means when they go bad someone has to go on the roof and replace them.. That means finding the right one and lifting the panel to change it.. AC on the roof also means higher chances of a lightning strike making it into the building and doing damage.. He did not mention anything about lightning arrestors or if unused power went reverse onto the grid.. By single phase I believe he meant split phase 120/240.. Snow in the Winter is going to be a real bummer..
Thank you for the comment! Luckily, no solar is wasted here. In New York, we have Phase One Net Metering, so all excess power is sent to the grid, and the customer is credited the full retail rate for the power they produce. Over the course of a year, what they produce will be used for this site. The benefit of microinverters is that when one fails, we can use the monitoring system to identify exactly which microinverter needs to be replaced. You’re right, though-it’s a bummer to have to get on the roof, lift a panel, and go through that process. However, the advantage is that the issue is isolated to that single inverter, making it easy to identify and resolve.
Batteries would have been really cool, but we didn’t include any on this project. Fortunately, we still have Phase One Net Metering here in New York, so any excess power is credited at the full retail rate by the utility. Additionally, they don’t experience power outages frequently enough to justify battery storage for this project.
Bro why you want to flame a system or company that was almost two decades old? You would have installed the exact same system almost 20 years ago. Stop acting like a politician and focus on what matters.
not sure if you realized, but you accidentally made a great case against solar by saying how obsolete the 16 year old system was. Pretty much all calculations I've seen assume about 25 year lifespan on the solar system. But from what you've sais it sounds like it was pretty much useless to try to salvage it after 16 years...
Solar itself is fine. The problem is finding a technician to maintenance them for 25 years. Like most things, the approach is always replace instead of repair. Just look at the HVAC market. If you have a 10 year old system, you will be pushed to replace it if you have the slightest problem.
Did panels 16 years ago have 25 year warranties the way that panels today do? I know there are some today that are warranteed for even more years than that.
In my case. Found they were performance-based warranties so its effectively a warranty against factory defects that would kill a panel within 20 whatever years. The microinverters have a much shorter warranty, and it's not the easiest procedure to remove panels to get to failed micro inverters. For me, a 10-yr payback. But, after years, my roof is now needing to be replaced due to age, so I would need to pay for the system to be removed/installed to get the roof replaced. (still trying to delay that cost/work )
@@darwinjina normal roofing is good for minimum 50 years. Your problem is you let it be installed on century old roof. Or you must be american who thinks flapping ruberoid on osb is roofing material.
@lauriviik roofs in southern 50 states don't last 50 years. In my area. Shingles are challenged to last 15 yrs due to hail / wind.
Not green to expensive and maintenance. Been there done that.
Maybe you have been there and done wrong?
@@lauriviik Nice try Diddy
@@Leaderorsheep whats there to try? Very cheap on no mainenance. Panels just sit in my yard and do what they are supposed to do. Think back on your experience and find out what you did wrong, because its opposite of what you are saying.
@@lauriviik - not wasting my time here. Why don’t you install a wind turbine next. Another terrible ROI.
@@Leaderorsheep why should i? I dont have suitble wind conditions for that, nothing more. Strange question to ask. Wind is very location dependant when sun doesnt care about location at all as long as it sees sun.