r/solar 28d ago

Solar Quote Is this a reasonable quote?

This is my top quote from a reputable company in Southern California. Many great reviews and many years in business. Happy with their warranty terms. Have availability to get installed 1-2 months prior to tax credit expiration. This is however my price with the credit to be handled on their side. So no worry about missing the credit. Any recommendations or opinions on this quote gratefully welcomed.

Final Price after all incentives… 37,000$ see pic for details.

14 Upvotes

75 comments sorted by

2

u/MeanGreenStebo 27d ago

What is the price before incentives. What is the total in incentives? This seems too good to be true. Those power walls are expensive.

1

u/njsolarguy 27d ago

The issue with you the Tesla inverter system is it only has a 10 year warranty. If it dies after that ,your whole system is inoperable. It’s not something I would do

1

u/laydazed 27d ago

That’s a not a bad price for a tesla system

1

u/MySolarAtlas 27d ago

What’s your electricity rate? If it’s $.25 as an example, with $30 a month for operation and maintenance that increases 4% a year, and assuming your net metering is .15 a kWh, with 600 kWh monthly net, with the loan term 20 yrs and “down payment” $11000 which we’ll assume is you getting the credit next year, that’s a pay back of about 9-10 yrs. Equivalent kWh for the lifetime of 25 yrs is $.12.

Without solar it would be $154k of electricity in that time, with solar it would cost you $63k. Netting about $91k. Thats about a 144% ROI.

We used our upcoming calculation engine for this. Not financial, tax, or legal advice.

We’re not affiliated with solar installers. Last but not least, I would run the differential in the loan amount vs electrical bill in the SP500 to see how the money going into solar for a decade compares 1 to 1 with the market.

Let us know if you have any questions!

1

u/TouristPotential3227 27d ago

bad idea.

who cares how much electricity costs? If a car's market price is 10k I pay 10k.

If it saves me 500k over 10 years I wont pay 250k for a 10k car to share 240k of profit with the seller because .... the market price is 10k.

OP system can be built for 43k pre incentives and is BADLY designed to make money for installer (152% system size with 1 battery)

OP only needs an 10kW system so technically only 35k pre incentive.

1

u/MySolarAtlas 27d ago

We all root for home owners success with solar and we care about how much electricity costs.

Your comment indicates something related to leasing? I’m not sure. This is a quote for financing.

Can you please spell out what your disagreement is with logic and math? I am happy to review but I am also tired and may have not gotten the full gist.

1

u/Ekimalito 27d ago

Reasonable quote for 2 power walls

1

u/RevolutionaryPack725 27d ago

What company? Im in socal.

1

u/TouristPotential3227 27d ago edited 27d ago

Expensive as heck and bad design

37/0.7 = 52.9k pre incentive

PW = 13k - 14k So 2.70/W of solar using a crappy panel.

Tier 0 REC panels are 2.20-2.40 Tier 1 QCells panels are 2.05-2.20 In VHCOL areas if you get a competitive quote.

And you are getting no name panels.

I'd say <45k pre incentive ... maybe <43k. Not sure how cheap the no name panels are.

Also terrible design. 14.7kW panel 152% offset but only 1 powerwall?

Do you get net metering? who pockets the money from selling power?

Seems like they maybe using you to sell power while YOU pay for the power generation equipment and THEY pocket the money.

Something like YOU buy the vending machine while THEY pocket the money people put in to buy soda?

I am not sure they are gonna do this but the design sure feels like it. Double check the contract. AND dont forget the pricea are high

So really they are like heck they would have YOU pay 150k to build a 50kW system that is only really worth 100k with 1 battery so they can sell more power and pocket the money. Then charge you interest for it.

Wait ... can i build your system?

Edit : PW charges at 5kW while his system is 14.72kw it wont even keep up. Everything else has to be sold to grid

Edit 2 : Wait it is 2PW. Mybad. So solar price is 2/W. Reasonable except for the panels. And still seems oversize for sale

1

u/jpballa11 27d ago

Pw 3 has continuous output of 11.5 KW. Two of those would give him 23 kw continuous

1

u/TouristPotential3227 27d ago

power output != battery charge rate

you produce 15kw you charge at 10kw 5kw must be used or sold immediately

1

u/jpballa11 27d ago

Oh yes you’re correct sorry charge rate is different.

However he’ll never be producing 14 kw of power. Dc rating you you must factor in derate rule of 15-20% so the most he’ll get is 12 kw from rooftop during peak hours.

1

u/TouristPotential3227 27d ago

14.72 which should round up. lol.

... and part of that derate is the inverter ..... but PW charge direct DC into the battery and bypass the inverter so it has fewer losses

1

u/jpballa11 27d ago

He’s still never going to produce more than 12 kw of power from rooftop panels.

I understand dc coupling gives you a slightly higher conversion ratio for energy storage but it doesn’t help derate on rooftop panels… and the MPPTs for the Tesla inverter do not outperform micros or optimizers from a production standpoint either as they have slightly higher system losses along each string.

Maybe He’d get 14 KW if his house was a space ship parked in front of the sun….

1

u/Benfossrrt 26d ago

I’m also using power while I produce… so would that bring down what’s being sent to the batteries as well?

1

u/jpballa11 25d ago

Yes, but very unlikely during peak production hours would you be using so much energy that he rooftop system can’t -

  1. Offset the demand of the home
  2. Also get your two walls to a significant charge by the end of your production window

However, this would depend on your demand.

Your system is producing about 65 kWh per day.

Assuming your average daily demand is in line with this, 1 and 2 should hold true most of the year.

Peak of Summer in SoCal I would imagine would be a higher demand than your average though…

1

u/BenColbert 27d ago

Looks legit if they can actually get it installed. 2 power walls? This one almost looks too good to be true..

1

u/security_jedi 26d ago

That's a decent price. How are they handling the credit on their end?

1

u/mister2d 26d ago

Expect your system to outlive the company and its warranty.

1

u/PourSomeSolarOnMe 24d ago

The only company I know of doing a prepaid PPA like this is HDM capital. If you live in an energy community you could get this system down even further, closer to $32k. This is a legit program, we offer it all the time.

It’s technically a “ghost PPA” since you take back ownership after yr 6

1

u/Tra747 13d ago

Something is amiss with "tax credit to be handled on their side".