4.7 Prepaid PPA: keep getting the federal 30% credit
With §25D terminated on 2025-12-31, the residential owner-pays-cash path to the 30% federal credit is closed — but through a Prepaid PPA structure, customers can still effectively receive that 30%. This is the product we are currently actively promoting at Green Future.
We offer Prepaid PPA because we believe the §48E 30% credit should belong to the customer — the PPA entity is just legal scaffolding to make it tax-legal. Other companies are selling Prepaid PPAs too, but their execution has serious problems — in most cases customers don't actually receive the 30%. This section first explains how we do it and why our customers genuinely save 30%; then explains the two common traps so you can recognize them in other companies' quotes.
How Prepaid PPA works mechanically (understand the structure first)
| Step | Timing |
|---|---|
| 1. Customer signs Prepaid PPA contract + pays the "30%-discounted" amount up front | Day 0 |
| 2. PPA entity holds system ownership + claims §48E 30% federal credit | Year 1 |
| 3. IRS §48E 5-year recapture lockup | Year 1–5 |
| 4. Customer buys out system ownership per the FMV clause ("buyout") | Year 6+ |
Key point: on the surface it looks like a "30%-discounted cash purchase"; in reality it's "a 6-year PPA followed by an ownership transfer at year 6." The actual beneficiary of the 30% credit is the PPA entity — how much of that discount the customer actually receives depends entirely on how the PPA company "passes through" the 30%. This is precisely where execution diverges sharply between companies.
How Green Future does Prepaid PPA
Our logic is simple: the §48E 30% credit should belong to the customer; the PPA structure is just there to make the law and tax mechanics work. So we make "actually passing the 30% to the customer" the product's core promise, in three concrete ways:
Difference 1: baseline = our cash-purchase price, no virtual inflation
Our Prepaid PPA quote uses the exact same baseline as our cash-purchase quote. You can hold both quotes side by side:
| Option | Our sample quote |
|---|---|
| Green Future cash purchase | $21,000 |
Green Future Prepaid PPA (baseline $21k × 70%) | $14,700 |
In other words — our Prepaid PPA is genuinely 30% cheaper ($21k → $14.7k). What you pay today is 30% less than our own cash-purchase quote on the same system. You can take both quotes to any other installer for comparison — the baseline has no inflated room.
Difference 2: contract locks in the year-6 buyout
Our contract explicitly writes out the year-6 ownership transfer terms:
- Fixed buyout amount (specific dollar figure, project-dependent — typically far lower than the market's "FMV appraisal" number); or
- FMV ceiling ("not to exceed
$X" or "not to exceed Y% of original system value")
This is written directly into the contract — the customer knows from Day 0 the maximum additional payment at year 6. No "independent appraiser" wiggle room.
Difference 3: transparent FMV formula + customer self-verification
If the contract uses an FMV ceiling rather than a fixed buyout, we attach the full FMV calculation formula + worked example as a contract exhibit. The customer can:
- See every variable in the formula (original system value, annual degradation rate, remaining PPA contract value, etc.)
- Replicate the calculation in their own spreadsheet
- At year-6 buyout, verify the appraiser's output against the contractual formula
The two core problems in other companies' Prepaid PPAs
Now that you know how we do it, here's why other companies' Prepaid PPAs in most cases do not actually pass the 30% to the customer. Watch for these two patterns when comparing their quotes:
Problem 1: the "30% discount" is just the market price
The comparison the rep shows usually looks like:
| Option | Price |
|---|---|
| "Traditional cash purchase" | $30,000 |
| Our Prepaid PPA (30% off) | $21,000 |
But if you collect three real local cash-purchase quotes for the same configuration, you'll find the actual market price was already $20,000–22,000. The "$30k → $21k`" pitch is built by first inflating the baseline 50% and then "subtracting 30%" — a manufactured discount. The customer pays market price either way; the 30% credit is not actually passed through.
Problem 2: the year-6 FMV buyout is left open-ended
A Prepaid PPA contract typically says: after 6 years (§48E's 5-year lockup + 1 year buffer), the customer may buy the system at its then-current Fair Market Value (FMV).
Sounds fair — but how FMV is determined is essentially set by the PPA company (or their designated third-party appraiser):
| FMV methodology | Typical 6-year valuation | Customer additional payment |
|---|---|---|
| True market value (6-year-old comparable secondary market) | ~35–45% of original system value | $3,000–5,000 |
| PPA-company-favored "remaining useful life × market $/kWh" discounting | ~60–75% of original system value | $8,000–12,000 |
| Extreme: "remaining PPA contract value" | ~80–90% of original system value | $15,000+ |
Key fact: the contract usually does NOT lock in the FMV formula — it typically says "determined by an independent appraiser engaged by the PPA company." The appraiser's fee is paid by the PPA company, so independence is questionable — 6 years later you may face another sizable check to actually own the system, and this potential cost is not proactively disclosed at the prepay stage.
Who Prepaid PPA fits — and who it doesn't
| Scenario | Is Prepaid PPA worth it? |
|---|---|
Don't have $21k cash, but can put up $14.7k | ✅ Yes — beats loan interest over the full term |
| Want to "indirectly" capture the §48E 30% credit now that §25D is gone | ✅ This is exactly what Prepaid PPA was designed for |
| Planning to sell the home in < 6 years | ⚠️ Mind the 6-year lockup; evaluate PPA transfer terms first |
Have $21k cash + want the simplest ownership structure | ❌ Just buy cash — one less LLC layer to deal with |
How to verify whether a Prepaid PPA actually delivers the 30%
Before signing any Prepaid PPA, ask the rep these three questions:
- "What's your same-company cash-purchase quote?" — if the Prepaid PPA isn't 25–30% lower than the cash quote, the "30% credit pass-through" is empty
- "Will you write the year-6 buyout amount into the contract?" — if yes, get it in writing; if no, walk away
- "Is there an FMV formula exhibit? Can I run the math myself?" — if they can't produce one, they're keeping the year-6 price open-ended
Only Prepaid PPAs that pass all three are worth signing. Green Future's Prepaid PPA passes all three — building this product the right way is precisely why we offer it: to make sure customers who could have gotten the 30% credit before §25D's termination can still effectively get it after.