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New Powerwall Advanced Options [Toggles for charging from and discharging to grid from powerwalls]

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I put in 2 Powerwalls that I didn't take the ITC on but I put in a 3rd Powerwall that I plan on taking the ITC for. I'm going to assume that if I don't charge them using the grid any more than 66% of the capacity (you can't charge them separately) averaged over a year that I'm meeting the spirit of the requirement. I talked to a tax expert about this and I didn't get the feeling his guess was any better than my guess.
I have a feeling the IRS doesn't have the resources right now to comb through your Powerwall logs (not even sure how they would get it).

 
I have a feeling the IRS doesn't have the resources right now to comb through your Powerwall logs (not even sure how they would get it).

The other thing is I would rarely grid charge. The only time I would grid charge is if I think there is going to be a power outage and StormWatch doesn't activate.
 
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"The 30% credit also applies to energy storage whether it is co-located or installed as standalone energy storage. This enables the retrofit of a battery to a solar array while taking advantage of the credit."

If the bill passes, we should be able to turn on Grid Charging without tax implications as batteries would no longer need to be installed with solar panels to receive the tax credit.
 
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"The 30% credit also applies to energy storage whether it is co-located or installed as standalone energy storage. This enables the retrofit of a battery to a solar array while taking advantage of the credit."
This is great news. With or without solar, batteries are very good for the grid, but hard to justify economically. So this "discount" on the cost is a good thing.

Thanks for pointing it out. Hope it passes!

SW
 
Hypothetically, say we spent $20k on a solar+PW system, and there's a state rebate program for $5k that Tesla filed for and received (or will receive directly). Is the ITC based on the total $20k cost of the system, or the $15k out-of-pocket amount spent? I assume it's the latter, but just want to be sure.
 
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Hypothetically, say we spent $20k on a solar+PW system, and there's a state rebate program for $5k that Tesla filed for and received (or will receive directly. Is the ITC based on the total $20k cost of the system, or the $15k out-of-pocket amount spent? I assume it's the latter, but just want to be sure.
According to my research, the ITC is paid only on the balance after all rebates. I was in this situation with California's SGIP rebate on Powerwalls.
 
According to my research, the ITC is paid only on the balance after all rebates. I was in this situation with California's SGIP rebate on Powerwalls.

are you sure? this seems to indicate otherwise (i've been researching the same thing trying to figure out what i can claim at the end of the year, i also did SGIP):


the two relevant parts...

REBATE FROM MY ELECTRIC UTILITY TO INSTALL SOLAR​

Under most circumstances, subsidies provided by your utility to you to install a solar PV system are excluded from income taxes through an exemption in federal law. When this is the case, the utility rebate for installing solar is subtracted from your system costs before you calculate your tax credit. For example, if your solar PV system was installed before December 31, 2022, cost $18,000, and your utility gave you a one-time rebate of $1,000 for installing the system, your tax credit would be calculated as follows:

0.26 * ($18,000 - $1,000) = $4,420

REBATE FROM MY STATE GOVERNMENT​

Unlike utility rebates, rebates from state governments generally do not reduce your federal tax credit. For example, if your solar PV system was installed before December 31, 2022, installation costs totaled $18,000, and your state government gave you a one-time rebate of $1,000 for installing the system, your federal tax credit would be calculated as follows:

0.26 * $18,000 = $4,680

SGIP is a state run program, not a direct rebate from the utility.
 
My SGIP check was written by PG&E, not the State, so I treated it as a utility rebate.
There are two tax issues and one SGIP issue here. What I understand is:
1) An SGIP rebate is not considered taxable income.​
2) One can take both the income tax credit and an SGIP rebate, but,​
3) SGIP rebate is limited to the system cost less any ITC taken.​

So, no double dipping.

My recollection is that the application for the SGIP rebate implicitly asks how much ITC you are claiming, and deducts that from the system installed price to calculate the rebate. My PW rebate (equity resiliency budget) was $13,200, i.e. $1 per Wh of storage using the 13.2kWh PW spec from CEC, I think. The total installed cost was $14,900, so I was out only $700.

If I had gone for 2 PW, which I now wish I had, what with PW new Export Everything capability, SGIP would have covered 100% of the cost: The cost would have been around $22K, and the maximum rebate 26.4K, but limited to the $22 cost. Too bad that budget is exhausted!

But I gotta say it sure was swell getting that check from PG&E, of all people.

SGIP is a state CPUC program and budget, only administered by PG&E, so it is not PG&E money. But it was not taxable income, which a lottery winning would be.

Unlike utility rebates, rebates from state governments generally do not reduce your federal tax credit.

True, but SGIP reduces the rebate by the amount of the credit, it seems.

SW
 
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SGIP is a utility rebate, in a program mandated state-wide but administered by each utility individually. Notice all the per-utility accounting on the SGIP website.

Cheers, Wayne


The CPUC's Self-Generation Incentive Program (SGIP)

SGIP provides rebates

The CPUC is a state entity. i'm not saying you're wrong, but it'd be nice if they would spell it out directly so we could have accurate information direct from the source and not have to guess at it.

My SGIP check was written by PG&E, not the State, so I treated it as a utility rebate.

this is probably the best way to define it. mine was from SCE, so you're probably right. i still wish either the utilities themselves or the state would give direct guidance on it, though. i haven't found anything from an official source about which way it's supposed to be classified...just us guessing like we all are here.
 
My recollection is that the application for the SGIP rebate implicitly asks how much ITC you are claiming, and deducts that from the system installed price to calculate the rebate. My PW rebate (equity resiliency budget) was $13,200, i.e. $1 per kWh of storage using the 13.2kWh PW spec from CEC, I think. The total installed cost was $14,900, so I was out only $700.

this was not the case for me, also equity resiliency. nothing in the SGIP process nor the actual purchase and installation process asked me anything about the federal ITC.
 
3) SGIP rebate is limited to the system cost less any ITC taken.

My recollection is that the application for the SGIP rebate implicitly asks how much ITC you are claiming, and deducts that from the system installed price to calculate the rebate.
I don't believe that is or was ever the case. If I recall, for large scale installs (3+ PWs), possibly with some other specifiers I'm forgetting, there were two different SGIP rates, one if you are claiming the ITC, and one if you weren't. In either case, the ITC was based on the (cost - SGIP), and the SGIP rebate was not taxable.

Cheers, Wayne
 
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this was not the case for me, also equity resiliency. nothing in the SGIP process nor the actual purchase and installation process asked me anything about the federal ITC.
It is right there on my PG&E/SGIP Incentive Claim Form, which they had me Docusign, page 4 of 6:
Project Finance​
Total Eligible Project Cost (TEPC): $13,900.00 Ineligible Project Cost: 0​
...Taking Federal Investment Tax Credits No (ITC):​
ITC as a % of TEPC: %​

I expect this is clear in the Handbook as well, a rabbit hole I spent a fair amount of time exploring back when I was Semper Solaris's first (of very many) applicants for this remarkable, frankly unbelievable, largess, but one I'm not tempted to revisit now to clarify this point.

The question would be, did you take the ITC, and did SGIP cover all or nearly all of your system's cost. If both are true, you may not want to say so publicly, though I doubt IRS or PGE/CPUC reads TMC.

I chose not to take the ITC even though it would have saved me $700, because the tax credit would take at least months, probably years to realize because I am still burning down the ITC from my 2016 solar installation. That is to say, the cash flow was better for me this way.

SW