We place homeowners into both Participate and Propel, so this is written to help you choose rather than to sell one. The discount mechanics, the buyout, the credit check reality, and the cases where it is the wrong product.
We place homeowners into both Participate and Propel, so we have no reason to talk one up. Here is the honest read on where Participate wins and where it does not.
Cash buyers. Prepay and there is no monthly payment at all, and no credit underwriting anywhere in the process.
Credit-constrained buyers. The lease itself has no FICO requirement, and its financing partner underwrites below Propel’s 660 floor.
Rental and investment property owners. There is no occupancy requirement, which is genuinely unusual in residential solar financing.
Large or unusual projects. No project cap, no pricing cap, no minimum or maximum system size.
Anyone who wants title on day one. Participate owns the system through the term, with a purchase option from Year 6.
Manufactured and mobile homes, apartments, most condos. Not eligible, because the program requires owning ground to roof.
Solar-only ground mounts. Not supported without a Powerwall 3 for the safe-harbor pathway.
Homeowners in Energy Community zip codes. Propel’s bonus stacking usually wins there instead.
This is the single most misunderstood part of the program, and the reason one quote says 30% and another says 35% on similar houses.
| System design | Discount | Why |
|---|---|---|
| Domestic-content solar + domestic-content battery | 35% | Both halves qualify, so the full bonus applies |
| Powerwall 3 used as the system inverter | 30% | The solar side stops counting as domestic content |
| Powerwall 3 as battery + Enphase or SolarEdge inverters | 35% | Keeps both halves qualifying |

The counterintuitive part: the 30% design is frequently the better deal. Using the Powerwall 3 as the inverter removes the cost of a separate Enphase or SolarEdge system entirely, and the hardware saved often exceeds the extra 5%. Ask for both designs priced out in dollars rather than percentages. A larger discount on a larger number is not automatically a win.
Answered from the current program terms rather than from marketing material.
We run Participate and Propel against your actual utility rate and roof, then show you both sets of numbers before you decide.