Idaho Power Company Rate Selection Guide
Idaho Power Company is an investor-owned electric utility (subsidiary of IDACORP) serving more than 640,000 customers across southern Idaho and eastern Oregon. It has deployed AMI smart meters to 99.5% of its meter base and provides interval and billing data through the My Account portal and a dedicated Large Business Portal. Idaho Power does not currently support Green Button/ESPI, EDI, or a public customer-data API.
Idaho Power Company Rate Schedule Comparison
| Schedule | Type | Rate | Best For |
|---|---|---|---|
| Schedule 7 | commercial | $25.00/mo + 8.7174-9.9619 cents/kWh (summer tiered) | Small commercial loads under the Schedule 9 threshold |
| Schedule 9 | commercial | $25.00/mo + $1.84/kW + demand ($9.49 summer / $7.75 winter) + ~5 cents/kWh | Mid-to-large commercial above 2,000 kWh/month |
| Schedule 19 | industrial | $110.00/mo + $2.27/kW + TOU demand ($14.46 summer / $13.05 non-summer) + TOU energy | Large industrial loads >=1,000 kW |
| Schedule 24 | agricultural | In-season $35.00/mo + $16.50/kW + 6.7222 cents/kWh | Agricultural irrigation pumping |
Market Overview
Idaho Power is a regulated, vertically integrated monopoly. The IPUC sets Idaho retail rates and the OPUC sets eastern-Oregon rates. There is no retail supplier choice; C&I customers take bundled service under approved tariff schedules.
Need to pull your actual usage data to compare rates? See the Idaho Power Company Data Access Guide →
Current Rate Schedules
Idaho Power C&I customers take bundled service under IPUC-approved tariff schedules. Verified Idaho schedules effective January 1, 2026 (with some components updated March 15, 2026): Schedule 7 (Small General Service), Schedule 9 (Large General Service, with secondary 9S, primary 9P, transmission 9T variants), Schedule 19 (Large Power Service, demand >=1,000 kW), and Schedule 24 (Agricultural Irrigation). Figures below are verified from Idaho Power's published pricing pages.
Effective: January 1, 2026 · Full Tariff Book →
| Schedule | Type | Applicability | Structure | Rate |
|---|---|---|---|---|
| Schedule 7 - Small General Service | commercial | Small commercial customers below the Schedule 9 usage threshold. | Verified: $25.00/month service charge; tiered summer (June-Sept) energy at 8.7174 cents/kWh for the first 300 kWh and 9.9619 cents/kWh over 300 kWh. | — |
| Schedule 9 - Large General Service | commercial | Commercial customers whose metered usage exceeds 2,000 kWh/month in at least 3 of the last 12 billing periods. Variants: 9S secondary, 9P primary, 9T transmission. | Verified: $25.00/month service charge; $1.84/kW basic charge; summer demand $9.49/kW, winter demand $7.75/kW; energy 5.0908 cents/kWh summer and 4.9875 cents/kWh non-summer. | — |
| Schedule 19 - Large Power Service | industrial | Customers with demand of 1,000 kW or more in 3+ of the last 12 billing periods. Secondary, primary, and transmission TOU variants. | Verified (Secondary TOU): $110.00/month service charge; $2.27/kW basic charge; summer demand $14.46/kW; non-summer demand $13.05/kW. Energy is time-of-use. | — |
| Schedule 24 - Agricultural Irrigation Service | agricultural | Agricultural irrigation pumping customers. | Verified (Secondary): in-season $35.00/month service charge, $16.50/kW demand, 6.7222 cents/kWh energy; out-of-season $9.00/month, no demand charge, 7.0752 cents/kWh energy. | — |
Rate Recommendations by Use Case
Small commercial business
Use Schedule 7 and monitor daily/hourly usage in My Account to control consumption.
Schedule 7 fits loads below the 2,000 kWh/month Schedule 9 threshold and has no demand charge, so energy management is the main lever.
- Track hourly usage with temperature overlays in My Account
- Watch the summer tiered energy rate above 300 kWh
Mid-to-large commercial
On Schedule 9, manage the per-kW demand charge, especially in summer.
Demand charges of $9.49/kW (summer) and $7.75/kW (winter) plus a $1.84/kW basic charge make peak kW the dominant cost driver.
- Use hourly interval data to identify and shave peak demand
- Evaluate 9S/9P/9T voltage variants for the best fit
Large industrial facility
On Schedule 19, combine demand reduction with TOU load-shifting and pursue near-real-time data access.
High summer demand charges ($14.46/kW) and TOU energy mean peak-shaving and off-peak shifting drive the biggest savings; qualifying customers can request near-real-time data.
- Request near-real-time data via an energy advisor (1-800-488-6151)
- Schedule batch/heavy loads to off-peak TOU windows
Agricultural irrigation operation
On Schedule 24, concentrate pumping efficiency in-season to manage the $16.50/kW demand charge.
In-season demand charges and energy at 6.7222 cents/kWh make pump scheduling and efficiency the key levers; out-of-season carries no demand charge.
- Right-size and stage pumps to limit peak kW in-season
- Review the 2026 calendar-month billing transition for irrigation accounts
Historical Rate Trends
Idaho Power rates are adjusted through IPUC/OPUC proceedings, including general rate cases and annual Power Cost Adjustment (PCA) and Fixed Cost Adjustment (FCA) filings. A general rate case was filed with the IPUC in 2025; current schedules are effective January 1, 2026 with some components updated March 15, 2026.
January 1, 2026
Current C&I tariff schedules (7, 9, 19, 24) effective, per Idaho Power published pricing pages, with some components updated March 15, 2026.
Per IPUC docketOverall trend: Upward pressure from a 2025 general rate case and annual power-cost adjustments; specific approved percentage changes are determined in IPUC dockets.
Next expected change: Next adjustments tied to ongoing IPUC general rate case outcomes and the annual PCA/FCA cycle.
Cost Optimization Strategies
For Idaho Power C&I customers, the largest savings come from managing demand charges (especially summer) and, on Schedule 19, shifting energy use off peak. Selecting the correct schedule for load size and using interval data to peak-shave are the core strategies.
Reduce summer demand
For: Schedule 9 and 19 customers
Summer demand charges ($9.49/kW on Schedule 9, $14.46/kW on Schedule 19) far exceed winter; trimming summer peak kW directly lowers bills.
Shift load off peak (Schedule 19 TOU)
For: Schedule 19 / transmission customers
Schedule 19 uses time-of-use energy pricing; moving consumption to lower-priced periods reduces energy charges.
Verify correct schedule
For: All C&I customers
Confirm placement on Schedule 7 vs 9 vs 19 based on usage/demand thresholds; the right schedule avoids overpaying fixed and demand components.
To implement these strategies, you need your 15-minute interval data. Learn how to download Idaho Power Company interval data →
Frequently Asked Questions
Does Idaho Power support Green Button or an energy-data API?▾
No. Idaho Power does not participate in Green Button/ESPI and publishes no customer-data API. C&I data is accessed through the My Account portal, the Large Business Portal, and the Authorized Party program. Request Green Button support via customer service or the IPUC if needed.
How can a consultant or aggregator access my Idaho Power data?▾
Through the Authorized Party program. The account holder submits the Authorized Party form (https://tools.idahopower.com/forms/Landlord/AuthorizedParty), after which the third party can view usage and billing via portal logins. There is no API or Green Button feed.
Which rate schedule applies to my business?▾
Small commercial loads typically fall on Schedule 7; commercial customers exceeding 2,000 kWh/month move to Schedule 9 (9S/9P/9T by voltage); demand of 1,000 kW or more qualifies for Schedule 19. Agricultural irrigation uses Schedule 24.
Can large customers get near-real-time interval data?▾
Yes. Customers on Schedule 19 or transmission service with demand of 1,000 kW or more can request near-real-time (sub-5-minute) data through an energy advisor and the Large Business Portal. It is not available via a public API.
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