Idaho interconnection applications
32 electric utilities serve Idaho (EIA-861, 2025): 3 investor-owned utilitys, 17 electric cooperatives, 11 municipal utilitys, 1 federal power agency. Together they serve 852,218 residential customers; 23,850 residential customers were on net metering at year-end 2025.
Largest utilities in Idaho
Investor-owned utility · 554,211 residential customers · Idaho
Applications: Own online portal – Idaho Power Customer Generation online application form
Interconnection process and documents →Investor-owned utility · 376,350 residential customers · Idaho
Applications: PowerClerk – Avista SGI PowerClerk
Interconnection process and documents →Investor-owned utility · 1,867,246 residential customers · Idaho
Applications: PowerClerk – PacifiCorp Net Metering / Customer Generation PowerClerk (all six states)
Interconnection process and documents →Electric cooperative · 31,097 residential customers · Idaho
Interconnection process and documents →Municipal utility · 29,403 residential customers · Idaho
Interconnection process and documents →Electric cooperative · 22,890 residential customers · Idaho
Interconnection process and documents →Electric cooperative · 17,824 residential customers · Idaho
Interconnection process and documents →Electric cooperative · 5,169 residential customers · Idaho
Interconnection process and documents →Electric cooperative · 2,426 residential customers · Idaho
Interconnection process and documents →Electric cooperative · 44,526 residential customers · Idaho
Interconnection process and documents →Electric cooperative · 24,835 residential customers · Idaho
Interconnection process and documents →Electric cooperative · 3,352 residential customers · Idaho
Interconnection process and documents →Export compensation among the researched Idaho utilities: Net billing, NEM. Rules differ by utility – see each utility page.
Idaho interconnection rule
Absence of a statewide IPUC rule inferred from utility-tariff structure (DSIRE not readable from server, search budget exhausted). Avista and RMP Idaho tariffs not reviewed.
Idaho Public Utilities Commission
Interconnection ruleNo statewide small-generator interconnection rule found; utility-specific IPUC-approved tariffs (e.g., Idaho Power Schedule 68 'Interconnections to Customer Distributed Energy Resources', approved per Order No. 36892, eff. 2026-01-01) – Utility-specific interconnection tariffs · source
Applies toIPUC-regulated IOUs each have their own tariff (Idaho Power, Avista, Rocky Mountain Power in Idaho). Idaho Power Schedule 68 applies to all customer generators in its Idaho service area qualifying for Schedules 6, 8, 84 or non-export.
Application formUtility-specific application (Idaho Power: application form on its website / 'Apply to Connect Your System'; DERs >=3 MVA sign Uniform Customer Generator Interconnection Agreement)
TimelinesIdaho Power Schedule 68: incomplete applications withdrawn after 60 days; Feasibility Review within 7 business days (15 business days if additional studies); Feasibility Study agreement returned within 15 business days.
FeesIdaho Power: $100 non-refundable application fee (also for modifications/expired applications); $1,000 Feasibility Study deposit; upgrades under Rule H.
InsuranceIdaho Power: $1,000,000 CGL per occurrence required in the Uniform Customer Generator Interconnection Agreement (DERs >=3 MVA); no insurance requirement found for smaller DERs in Schedule 68.
External disconnectIdaho Power: Disconnection Equipment required for all customer DERs - lockable with Company padlock, visible break (circuit breakers do not qualify), labeled 'Generation Disconnect Switch', within 10 ft of interconnection point or with posted location instructions.
Export compensationNet billing – Utility-specific (Idaho Power Schedules 6, 8, 84)
No statewide net metering statute. Idaho Power: net billing with variable export credit rate (current ECR held until April 2028 filing); Schedules 6/8 up to 25 kW, Schedule 84 up to greater of 12-month max demand or 100 kW; inverter systems measured by AC nameplate.
Municipal utilities and electric cooperatives are not rate-regulated by the IPUC and set their own interconnection and net metering policies.
| Level | Up to | Criteria / review / fee |
|---|---|---|
| Idaho Power: DER < 3 MVA (Section 2 process) | 3000 kW | Feasibility Review; Feasibility Study if needed · Feasibility Review 7 business days (additional studies 15 business days) · $100 non-refundable application fee; Feasibility Study deposit $1,000 |
| Idaho Power: DER >= 3 MVA | three-step study process (feasibility, system impact, facility study); Uniform Customer Generator Interconnection Agreement · study deposits; facility study deposit 5% of project cost capped at $30,000 |
- Idaho Power Schedule 68 - Interconnections to Customer DERs (I.P.U.C. No. 30, Order 36892): https://docs.idahopower.com/pdfs/aboutus/ratesregulatory/tariffs/Schedule68.pdf (retrieved 2026-11-13)
- Idaho Power - Customer Generation: https://www.idahopower.com/accounts-service/clean-choices/solar-power-options-customer-generation/customer-generation/ (retrieved 2026-11-13)
- Idaho Power - Retail Tariffs Idaho: https://www.idahopower.com/about-us/rates-and-regulatory/retail-tariffs-idaho/ (retrieved 2026-11-13)
All 32 utilities in Idaho
- Idaho Power540,032
- Avista Utilities129,181
- Rocky Mountain Power (UT, ID, WY) / Pacific Power (OR, WA, CA)75,599
- Kootenai Electric Cooperative31,004
- City of Idaho Falls29,403
- Northern Lights, Inc.18,172
- Fall River Rural Electric Cooperative Inc.15,952
- United Electric Co-op, Inc.5,169
- Salmon River Electric Cooperative Inc.2,426
- Inland Power & Light Company2,175
- Lower Valley Energy Inc.1,663
- Raft Rural Electric Cooperative Inc.1,398
- Missoula Electric Cooperative, Inc.44
- Clearwater Power Company0
- Vigilante Electric Cooperative, Inc.0
- City of Burley0
- Idaho County Light & Power Cooperative Association, Inc.0
- City of Weiser0
- City of Rupert0
- Lost River Electric Cooperative Inc.0
- City of Bonners Ferry (ID)0
- City of Soda Springs0
- City of Heyburn0
- City of Plummer0
- South Side Electric, Inc.0
- East End Mutual Electric Co Ltd0
- Riverside Electric Cooperative0
- City of Albion0
- Farmers Electric Company, Ltd0
- City of Declo0
- Bonneville Power Administration0
- City of Minidoka0
Residential customers in Idaho per EIA-861 (2025). Customer counts = bundled + delivery-only service (EIA-861 Part A + Part D). Service territory is reported by county; a county can be served by several utilities.
$500 / month
Unlimited interconnection applications. 12-month agreement, signed online. The agreement starts the day you sign; first invoice right away, then monthly.
- Unlimited interconnection applications
- Single-line diagram and site plan for every application
- Pre-submission check against the utility’s requirements
- Homeowner e-signature link for the authorization
- Filing in your utility portal accounts or by the utility’s method
- Utility questions, corrections and resubmissions
- Follow-up through approval, inspection and PTO
- Customer list, exports, API and webhooks
Applications are typically submitted within 2 business days after complete documents. Utility review times are set by each utility.