Avista Utilities - Net Metering

February 14, 2023


Idaho does not have a statewide net-metering policy. However, each of the state's three investor-owned utilities -- Avista Utilities, Idaho Power and Rocky Mountain Power -- has developed a net-metering tariff that has been approved by the Idaho Public Utilities Commission (PUC). The framework of the utilities' net-metering programs is similar, in that each utility's original program: (1) offers net metering to customers that generate electricity using solar, wind, hydropower, biomass or fuel cells; (2) limits individual system size to 100 kilowatts (kW); (3) limits aggregate net-metered capacity to 0.1% of the utility's peak demand in a baseline year (1996 for Avista); and (4) restricts any single customer from generating more than 20% of the aggregate capacity of all net-metered systems.* Avista Utilities' net-metering tariff is Schedule 63. Previously, Avista had an individual system size cap of 25 kW. In July 2010, the PUC approved an increase in this cap to allow systems up to 100 kW to participate in net metering.

For Avista Utilities customers, any net excess generation (NEG) during a monthly billing period is credited to the customer's next bill at the utility's retail rate. On March 31st of each calendar year, any remaining NEG is granted to the utility with no compensation for the customer. 


*Note: In 2013, Idaho Power made a request to the PUC to modify its net metering program, resulting in changes to the capacity cap and net excess generation. 

Program Overview

Implementing Sector: Utility
Category: Regulatory Policy
State: Idaho
Incentive Type: Net Metering
Web Site: https://www.myavista.com/energy-savings/green-options/go-solar/getting-connected
Start Date:
Eligible Renewable/Other Technologies:
  • Solar Thermal Electric
  • Solar Photovoltaics
  • Wind (All)
  • Biomass
  • Hydroelectric
  • Fuel Cells using Non-Renewable Fuels
  • Wind (Small)
  • Hydroelectric (Small)
  • Fuel Cells using Renewable Fuels
Applicable Utilities: Avista Utilities
System Capacity Limit: 100 kW
Aggregate Capacity Limit: 0.1% of Avista's peak demand in 1996 (in Idaho)
Net Excess Generation: Credited to customer's next bill; granted to utility at end of 12-month billing cycle
Ownership of Renewable Energy Credits: Not addressed
Meter Aggregation: Not addressed


Name: Net Metering
Organization: Avista Corp.
Address: 1411 E. Mission Ave., Mail Stop 15
Spokane WA 99202
Phone: (800) 227-9187
Email: solar@avistacorp.com

This information is sourced from DSIRE; the most comprehensive source of information on incentives and policies that support renewables and energy efficiency in the United States. Established in 1995, DSIRE is operated by the N.C. Clean Energy Technology Center at N.C. State University.