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SRP utility guide

With SRP, the rate plan is part of the solar design.

SRP offers both demand-based and export-based price plans for homes with rooftop solar or batteries. The right system needs to reflect how much power the home uses, when it uses it, and which plan the homeowner selects.

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Two plan familiesSRP offers demand-focused and export-focused options for solar homes.Applies to: SRP demand-based and export-based solar price plans. Plan names and terms are subject to change.
Peak controlOn demand plans, one high on-peak interval can materially affect the bill.Applies to: SRP demand-based plans. Current peak windows and charges are subject to change.
Self-consumptionUsing solar in the home can be more valuable than exporting it at the published credit.Applies primarily to: SRP export-based plans. Export credits and program terms are subject to change.

Demand-based plans

SRP demand plans pair energy charges with a charge based on the home's highest on-peak demand interval during the billing cycle. Large loads running together—such as air conditioning, an oven, pool equipment, or EV charging—can create that peak.

  • Stagger major appliances and charging
  • Model the home's on-peak load, not only annual usage
  • Evaluate battery controls for peak reduction
Plan match: SRP demand-based solar price plans. Exact plan names, peak periods, and charges are subject to change.

Export-based plans

SRP export plans separately credit excess electricity sent to the grid. Because the export credit can be lower than the value of using solar directly, system design should avoid assuming every exported kilowatt-hour offsets a retail-priced kilowatt-hour.

Plan match: SRP export-based solar price plans. Export credit schedules and program terms are subject to change.

What Sonoma reviews for an SRP home

Preliminary guidance: SRP plans, credits, and program terms can change. Final recommendations require the current bill, site details, and confirmation of the utility rules in effect for the project.

Utility reference: SRP Compare Solar Price Plans