Meter Aggregation: How Does It Work?

Meter Aggregation: How Does It Work?

What is Meter Aggregation?

Meter aggregation allows a single photovoltaic system to generate energy credits and offset multiple meters/loads. It was implemented in 2014 by the California Public Utilities Commission (CPUC) and has provided beneficial opportunities for California’s agricultural industry.


  • Offset multiple energy loads with a single solar system
  • Provides great flexibility for system placement
  • Offers potential decreased installation costs and improved ROI

How It Works

Aggregated meters must be located on continuous land parcels owned or leased by the same entity. Parcels divided by public thoroughfares are still considered contiguous, and system sizes are limited to MW (AC) arrangements.


Additionally, the following Net Energy Metering rules are applicable for aggregated systems:


  • Energy generation credited at retail energy rates, including time-of-use energy pricing
  • Only the energy charges of your bill can be offset; monthly demand and service charges still apply.
  • One-time $20 set-up fee per meter; $5 fee per meter, per month


How You Can Benefit From Aggregation

Aggregated solar systems provide a new and unique solution to rising energy costs. Meter aggregation may be especially beneficial for energy users with multiple small and mid-sized loads.


  • Allows agricultural, commercial, and residential accounts to be combined
  • Allows for adjustments to your meter portfolio annually