Idaho Power supports customer choice and your interest in clean energy. Customers who install their own generation sources — usually solar, but also wind, hydropower, geothermal or fuel cells — can offset some or all of their energy needs. Customers remain connected to Idaho Power’s grid, drawing energy any time they aren’t producing their own power or need more than they can produce.
When certain customers (those billed under schedules 6, 8 and 84) generate more energy than they need, they send it back to Idaho Power’s grid and earn an energy credit for the excess energy produced. In addition to a fixed monthly service charge, the customer is billed for their net energy use, which is the amount they generate minus the amount they use over the monthly billing period. This billing structure is called net energy metering, or net metering.
Pricing for Residential & Small General Service Customers
Idaho Power is working with the IPUC, the public and other interested parties to study the costs and benefits of on-site generation on Idaho Power’s system, and to explore whether there should be modifications to the pricing structure for residential and small general service customers with on-site generation. Case documents are available on the IPUC website (IPC-E-18-15).
Idaho Power’s on-site generation tariffs, as with all other tariffs, are not contracts and are subject to change at any time upon order of the IPUC. Changes to the on-site generation tariffs in the future may include, but are not limited to, modifications to rates, billing components, billing structure, compensation structure, and the value for excess energy produced by the customer’s on-site generation system (and thus, the amount a customer would be compensated). This is consistent with the Idaho Residential Energy System Disclosure Act, which requires solar retailers to provide a disclosure reminding potential customers that legislative or regulatory actions can affect or eliminate one’s ability to sell or get credit for any excess power generated by the system and may affect the price or value of that power.
The IPUC grandfathered existing residential and small general service customers with on-site generation as of December 20, 2019 under the rules of Idaho Power’s current service offering. The IPUC’s grandfathering provisions apply to the on-site generation system, rather than the customer — meaning the original system will remain grandfathered if a customer moves. Grandfathered customers may add a new system (that will not be grandfathered) and maintain grandfathered status for their existing system if they have the two systems metered separately. The end date for grandfathering has been established as December 20, 2045.
New on-site generation customers are subject to future changes in billing and compensation structure.
Other Cases Regarding Customer Generation Pricing
In addition to the 18-15 case, Idaho Power is involved in two IPUC cases regarding customer generation:
- Case studying the costs and benefits of commercial, industrial and irrigation customer generation on Idaho Power’s system (IPC-E-19-15)
- Case studying ways to recover the fixed costs of providing electric service to customers (IPC-E-18-16)
Customer Generation Eligibility and Pricing
Customers approved to generate their own electricity are billed under different pricing policies, often called rate schedules (or tariffs). Use the chart below, to find your rate schedule or view all rate schedules.
|Current Schedules Eligible for Customer Generation||Applicable Schedule with Customer Generation||Allowable Amount of Capacity Connected|
|Idaho Residential (Schedule 1)||Idaho Residential Service On-site Generation (Schedule 6)||Up to 25 kilowatts|
|Idaho Small General Service (Schedule 7)||Idaho Small General Service On-Site Generation (Schedule 8)||Up to 25 kilowatts|
|Oregon Residential (Schedule 1) and Small General Service (Schedule 7)||Customer Energy Production/Net Metering Service (Schedule 84)||Up to 25 kilowatts|
|Idaho and Oregon Irrigation (Schedule 24), Large General Service (Schedule 9) and Industrial (Schedule 19)||Customer Energy Production/Net Metering Service (Schedule 84)||Up to 100 kilowatts|
For projects over 100 kW refer to Generator Interconnection.
Solar, wind and other on-site generation sources must be installed safely. There are specific equipment requirements and designs depending on your rate schedule and size of system.
Schedule 72 Interconnections to Non-Utility Generation applies to all rate schedules and outlines the interconnection requirements and application process.
Customer Generation Interconnection Requirements include line diagrams, equipment specifications and testing requirements to ensure your system is configured properly.
See the Idaho Division of Building Safety’s safety bulletin warning about plug and play inverters.
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