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EnergySavings · Idaho · Comparison

Idaho Power Co vs PacifiCorp: who pays less in Idaho?

Data as of: EIA-861 annual 2024 (released 2025) · EIA monthly state prices February 2026 · EIA weekly heating-fuel survey Mar 30, 2026 · retail-choice registry reviewed Jun 2026 · URDB tariffs pulled Jun 2026. Page generated 2026-06-12.

Idaho Power Co customers paid less: an average 11.76¢/kWh in 2024 versus 12.11¢/kWh at PacifiCorp (EIA-861) — a gap of 0.35¢/kWh, worth about $37 per year at typical usage (10,800 kWh/yr). Their territories meet in 4 ID counties (Bannock, Bingham, Oneida, …). You cannot switch wires companies — the territory is set by your address.

Side by side (ID, EIA-861)

Idaho Power Co vs PacifiCorp — residential averages from federal EIA-861 filings
MetricIdaho Power CoPacifiCorp
2024 average price, ¢/kWh11.7612.11
2023 average price, ¢/kWh11.6511.02
Annual cost at 10,800 kWh, $/yr$1,270$1,307
Residential customers (2024)525,75174,170
OwnershipInvestor-ownedInvestor-owned
Counties served in ID2414

Average price = residential revenue ÷ sales (bundled service): the all-in price customers actually paid, including supply, delivery and riders. Profiles: Idaho Power Co · PacifiCorp · Idaho overview.

Where the territories meet

Both utilities file EIA-861 service territory in: Bannock · Bingham · Oneida · Power counties (ID, 2024).

Adjoining or overlapping territory in a county does not mean households there can pick between the two — service maps are parcel-level and fixed. The county overlap mainly matters when choosing where to live or comparing town-level costs.

Can you actually choose between them?

No — not for delivery. Distribution territories are exclusive and set by address; Idaho Power Co and PacifiCorp do not compete for the same meters. Idaho is a regulated retail market — there is no residential supplier shopping; rates are set in utility-commission proceedings (puc.idaho.gov). The price gap above mainly matters when choosing where to live, comparing towns, or benchmarking your bill.

Questions people ask

Is Idaho Power Co cheaper than PacifiCorp?
Yes — in 2024 Idaho Power Co customers averaged 11.76 cents/kWh versus 12.11 for PacifiCorp (EIA-861). Idaho Power Co was cheaper by 0.35 cents, about $37 per year at 10,800 kWh.
Can I switch from PacifiCorp to Idaho Power Co?
No — distribution territories are exclusive and set by address; you cannot pick between the two wires companies. Idaho has no residential supplier shopping either; rates are set in utility-commission proceedings.
Why is PacifiCorp more expensive than Idaho Power Co?
EIA-861 averages reflect everything customers actually paid — supply costs, delivery rates, riders, and surcharges across each territory. Differences in generation mix, grid investment, storm costs, and customer density between PacifiCorp and Idaho Power territory all feed the 0.35-cent gap.
About these numbers. Rates shown are averages computed from federal regulatory filings (EIA Form 861) and public tariff databases — confirm with your utility before making decisions; your actual rate depends on your tariff, usage, and riders. Distribution utility is determined by address and generally cannot be chosen; in retail-choice states you may choose your supplier for the supply portion of the bill. Savings figures use 10,800 kWh/yr (US average residential usage) and are estimates, not quotes. EnergySavings is an independent data project by CertiHomes and is not affiliated with any utility, supplier, or government agency.