Author Topic: Solar panels  (Read 4320 times)

Offline aygart

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Re: Solar panels
« Reply #45 on: March 27, 2019, 09:23:41 AM »
Any recommendations for nj?
For commercial I can help you.
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Offline normathej

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Re: Solar panels
« Reply #46 on: March 27, 2019, 10:19:35 AM »
Any recommendations for nj?

+1
I am also curious to know if the "projections" that vendors give you are typically reasonably accurate, or if they have no resemblance to reality...

Offline est

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Re: Solar panels
« Reply #47 on: March 27, 2019, 10:23:49 AM »
For commercial I can help you.
Residential

Offline normathej

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Re: Solar panels
« Reply #48 on: March 27, 2019, 10:26:00 AM »
For commercial I can help you.

What roof size qualifies as commercial vs. residential?

Offline cozmohoot

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Re: Solar panels
« Reply #49 on: March 27, 2019, 06:21:34 PM »
I just got another quote and its much less.
I forgot the name of the panel but i think it was trine or something.
generates same amount (3700kwh).
total cost is 10,700
federal CR of 3200 (to be put back into loan)
state CR of 2600  (to be put back into loan)
prop tax abatement 2200 over 4 years.
What do you have to say @skyguy?

Offline skyguy918

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Re: Solar panels
« Reply #50 on: March 28, 2019, 11:03:07 AM »
What do you have to say @skyguy?
Hard to argue with half the cost. A few things though. The first quote I got from the company I went with was for 300w Trina panels. From my limited research, it seems like a real step down from something like SunPower or LG, but I encourage you to find out more details on the specific models being offered in the various quotes you get (start here - https://news.energysage.com/best-solar-panels-complete-ranking/). Some key differences may be the warranty (length, coverage, labor cost for replacement, etc.) and the expected degradation (what % of the initial production you can expect after 5, 10, 15, etc. years). Also find out what kind of inverter(s) (see here for an explanation of the different types - https://www.energysage.com/solar/101/string-inverters-microinverters-power-optimizers/) are included, and which monitoring system is included if any. I have microinverters and monitoring from Enphase, and I'm happy with it so far.

As you can see from the links above, EnergySage is a great resource in general. Might be worth reading through their whole Solar 101 section.

If the choices end up being just the 2 systems you gave details for here, I'd have a hard time paying double, even if it's a markedly better system. I assume the lower quote came from a non SunPower installer. Maybe ask them for a higher end quote - something with LG/Panasonic or similar panels and SolarEdge/Enphase or similar inverter system? It for sure won't be as cheap as with the Trina, but it come in lower than SunPower at a price point that's worth the upgrade over Trina.


Offline davidd75

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Re: Solar panels
« Reply #51 on: March 28, 2019, 02:16:15 PM »
any tips or anything else I should know regarding selling solar SRECS.  Which company should I use, should I wait to sell multiples etc...  or are the differences negligible?

Offline Coinguy

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Re: Solar panels
« Reply #52 on: March 31, 2019, 04:31:01 PM »
Are there any other companies besides for powerlutions that service NJ?

Offline aygart

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Re: Solar panels
« Reply #53 on: March 31, 2019, 05:27:07 PM »
Are there any other companies besides for powerlutions that service NJ?
Residential or commercial?
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Offline shmaltz

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Re: Solar panels
« Reply #54 on: March 31, 2019, 06:22:40 PM »
Are there any other companies besides for powerlutions that service NJ?
I spoke to the owner of green revolution, which services New Jersey - he seems very competitively priced, knowledgeable, and easy to deal with in general and in terms of working out payments.

Offline davidd75

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Re: Solar panels
« Reply #55 on: April 01, 2019, 09:32:15 AM »
whom should I use to sell SRECs?

Offline cozmohoot

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Re: Solar panels
« Reply #56 on: April 01, 2019, 08:22:38 PM »
Hard to argue with half the cost. A few things though. The first quote I got from the company I went with was for 300w Trina panels. From my limited research, it seems like a real step down from something like SunPower or LG, but I encourage you to find out more details on the specific models being offered in the various quotes you get (start here - https://news.energysage.com/best-solar-panels-complete-ranking/). Some key differences may be the warranty (length, coverage, labor cost for replacement, etc.) and the expected degradation (what % of the initial production you can expect after 5, 10, 15, etc. years). Also find out what kind of inverter(s) (see here for an explanation of the different types - https://www.energysage.com/solar/101/string-inverters-microinverters-power-optimizers/) are included, and which monitoring system is included if any. I have microinverters and monitoring from Enphase, and I'm happy with it so far.

As you can see from the links above, EnergySage is a great resource in general. Might be worth reading through their whole Solar 101 section.

If the choices end up being just the 2 systems you gave details for here, I'd have a hard time paying double, even if it's a markedly better system. I assume the lower quote came from a non SunPower installer. Maybe ask them for a higher end quote - something with LG/Panasonic or similar panels and SolarEdge/Enphase or similar inverter system? It for sure won't be as cheap as with the Trina, but it come in lower than SunPower at a price point that's worth the upgrade over Trina.
Does this answer?...

Trina 375W panels and SolarEdge invertor with optimizers, SolarEdge comes with monitoring. 


Offline skyguy918

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Re: Solar panels
« Reply #57 on: April 02, 2019, 10:37:28 AM »
Does this answer?...

Trina 375W panels and SolarEdge invertor with optimizers, SolarEdge comes with monitoring.
It answers the part about what type of inverter system you'd have - a single inverter with power optimizers on each panel. So basically, the equipment being used is definitely a big part of the difference in cost between the SunPower quote and this one. It's still probably a better price overall, but it's not completely apples to apples. The SolarEdge system is probably nearly as good as what you'd see out of a micro-inverter based system, with similar long warranty and monitoring. As far as the panels, you'd have to ask about the specifics of warranty and performance for the exact models being offered to you in each quote. As an example, my LG panels are warranted at 95% of the initial power output over the first 5 years, with the warranted output dropping .4% each year until 25 years (88.4%). This is considered industry leading, and I think SunPower's is very similar. Trina's warranties are not that extensive. I've seen some where they guarantee only 90% over the first 10 years, and then dropping down to 80% from 10-25 years. I think some may even have less than that.

Offline davidd75

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Re: Solar panels
« Reply #58 on: April 02, 2019, 01:35:28 PM »
Has anybody tried selling their Srecs directly to the energy producers instead of going through a broker or aggregator to save on broker fees etc...?

Offline cozmohoot

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Re: Solar panels
« Reply #59 on: April 02, 2019, 05:48:21 PM »
It answers the part about what type of inverter system you'd have - a single inverter with power optimizers on each panel. So basically, the equipment being used is definitely a big part of the difference in cost between the SunPower quote and this one. It's still probably a better price overall, but it's not completely apples to apples. The SolarEdge system is probably nearly as good as what you'd see out of a micro-inverter based system, with similar long warranty and monitoring. As far as the panels, you'd have to ask about the specifics of warranty and performance for the exact models being offered to you in each quote. As an example, my LG panels are warranted at 95% of the initial power output over the first 5 years, with the warranted output dropping .4% each year until 25 years (88.4%). This is considered industry leading, and I think SunPower's is very similar. Trina's warranties are not that extensive. I've seen some where they guarantee only 90% over the first 10 years, and then dropping down to 80% from 10-25 years. I think some may even have less than that.
manufacturer production garantee is one half of one percent every year for 30 years. 

We offer a full 10 year warranty that includes labor the manufacturer offer warranties up to 25 years and production 30 years




Thanks again for the help!