If SCE’s Rate Plan Comparison Tool is unavailable for your solar account, you can still make an informed solar-and-battery decision. The next step is a project-specific comparison using your household’s electricity timing, applicable tariff and written PPA terms.
A qualifying no-upfront PPA can provide access to solar and included battery equipment while preserving cash. Understanding the remaining utility bill helps you evaluate that benefit alongside the ongoing provider payment.
Why might SCE’s tool be unavailable?
SCE’s Solar Billing Plan FAQ, checked September 26, 2026, says Solar Billing Plan customers are not eligible to use the Rate Plan Comparison Tool. It also lists master-meter customers and accounts with fewer than five months of continuous usage as ineligible.
That tool limitation does not establish whether your property qualifies for a PPA or whether a proposed battery is suitable. Those questions require a separate provider and site review. If your account’s billing classification is unclear, confirm it with SCE before modeling a project.
SCE’s time-of-use guidance states that Solar Billing Plan customers must use TOU-D-PRIME. Existing NEM 2.0 customers must use a time-of-use rate, but that is a different billing situation. Do not assume a legacy NEM comparison applies to a new Solar Billing Plan installation.
Ask for two matching household scenarios
Request a dated estimate comparing your home without the proposed project against the same home with the proposed solar, battery and PPA. Use the same expected household loads in both scenarios, including any planned EV or electric-appliance changes.
Provide recent bills and available interval usage data rather than only an annual dollar total. Ask the proposal to show:
- Monthly solar production and when the household is expected to use it directly.
- Battery charging, discharge, conversion losses and the reserve retained for outages.
- Remaining grid imports and exports, valued under the applicable billing rules.
- PPA payments, separate battery fees and all remaining utility charges.
SCE’s billing explanation distinguishes electricity purchased from the grid from energy exported to it. Export credits and purchase charges use different values. A model that simply subtracts annual solar kilowatt-hours from annual consumption misses the effect of timing.
Compare the combined cost, not just the solar invoice
For an arithmetic example only, suppose a model estimates a $140 PPA payment and an $85 remaining utility bill for one month, with no separate battery fee. The combined estimate is $225. These are invented inputs, not SCE rates, an available offer or a savings forecast. Compare that total with the same month’s modeled no-project bill, then review the full year and later contract years.
The CPUC consumer guide explains that a PPA provider owns the solar system and charges for its generated electricity. Review the starting price, any escalator, term, qualification requirements, maintenance and home-sale provisions. Confirm battery ownership, replacement coverage and installation charges separately. No upfront purchase does not mean free electricity or guaranteed savings.
Keep the backup assumptions visible
A battery can shift usable solar energy into evening hours, but a cost estimate should reflect your chosen backup priorities. Ask the provider to explain how a higher outage reserve changes the modeled daily operation.
PG&E’s general battery guidance explains that outage duration depends on stored energy, demand and solar conditions. Your SCE home needs compatible backup equipment and supported circuits; solar recharge depends on usable sunlight and system capability.
Our SCE baseline-credit guide covers another tariff detail to check. Bring your bill and written estimate to the West Coast Alternatives homeowner journey for a discussion grounded in your household’s costs and backup needs.