Imperial Irrigation District electricity rates
Public power district · California · WECC region · CAISO
Imperial Irrigation District is a public power district or authority run by an elected or appointed board, serving 142,916 homes in California. Its residential customers pay an average of 20.30¢/kWh including fixed and delivery charges, 13% more than the U.S. average.
Rate basis: EIA-861M monthly utility data, 12 months ending 2026-07.
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Imperial Irrigation District bill estimates
| Monthly use | At average all-in rate | Base tariff charges* |
|---|---|---|
| 500 kWh | $101.50 | $68.05 |
| 1,000 kWh | $203.00 | $126.50 |
| 1,500 kWh | $304.50 | $184.95 |
| 2,000 kWh | $406.00 | $243.40 |
*SCHEDULE D RESIDENTIAL SERVICE (effective 2015-01-01, $9.60/month customer charge), energy and fixed charges from the OpenEI Utility Rate Database. Riders, fuel adjustments and taxes are often billed separately, so real bills usually land closer to the all-in column. Calculate your bill.
Imperial Irrigation District residential rate plans
| Plan | Effective | Customer charge | Energy charges |
|---|---|---|---|
| SCHEDULE D RESIDENTIAL SERVICE | 2015-01-01 | $9.60 | 11.69¢ |
Source: OpenEI U.S. Utility Rate Database. Rates change. Check the linked tariff or your bill for current figures.
Imperial Irrigation District rate history
2015–2025: +42% change in the average residential rate (13.19¢ → 18.68¢). Annual EIA-861 data.
Outages & reliability
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Reliability history
| 2025 | Imperial Irrigation District | California avg | U.S. avg |
|---|---|---|---|
| Outage minutes per customer (SAIDI) | 114 | 352 | 266 |
| Outages per customer (SAIFI) | 0.72 | 1.28 | 1.34 |
| Average restoration time (CAIDI) | 2 hr 38 min | — | — |
| Outage minutes excluding major storms | 56 | 135 | 121 |
Outages in counties served (2025)
From ORNL EAGLE-I, which tracks customers without power every 15 minutes. These counts cover every utility in each county. Weighted across Imperial Irrigation District's counties, customers averaged 6 hr 49 min without power.
| County | Outage min/customer | Days with outages | Peak customers out | Worst day |
|---|---|---|---|---|
| Riverside | 718 | 48 | 105,557 | 2025-01-10 |
| San Diego | 228 | 20 | 20,338 | 2025-07-01 |
| Imperial | 162 | 11 | 4,555 | 2025-09-19 |
Imperial Irrigation District service area
Imperial Irrigation District serves 3 counties in California and 40 ZIP codes.
Imperial, Riverside, San Diego
Cities: Indio, Palm Desert, Coachella, El Centro, La Quinta, Calexico, Desert Hot Springs, Twentynine Palms, Brawley, Yucca Valley, Blythe, Rancho Mirage, Imperial, Mecca, Thousand Palms, Garnet, Calipatria, Joshua Tree, Bermuda Dunes, Holtville, Indian Wells, Heber, Desert Edge, Salton City, Borrego Springs, Vista Santa Rosa, Thermal, Sky Valley, Westmorland, Seeley, Julian, Niland
Programs, smart meters & solar
| Smart meters (AMI) for homes | 100% |
| Time-based rate programs | None reported |
| Net-metered solar homes | 14,066 |
| Residential efficiency incentives paid (2025) | $1,920,000 |
| Residential energy saved by programs | 7,305 MWh |
Imperial Irrigation District at a glance
| Ownership | Public power district |
| Services | Generation, Transmission, Distribution |
| Commercial rate | 18.49¢/kWh |
| Industrial rate | 18.85¢/kWh |
| Retail revenue (2025) | $627,709,000 |
| Electricity sold (2025) | 3,394,683 MWh |
| Peak demand | 1,133 MW summer · 651 MW winter |
| Power from own generation | 33% (rest purchased) |
| Line losses | 9.3% |
| Balancing authority | IID |
| EIA utility ID | 9216 |
Other utilities in California
Frequently asked questions
What is Imperial Irrigation District's electricity rate?
Imperial Irrigation District residential customers pay an average of 20.30¢ per kWh, all charges included (EIA-861M monthly utility data, 12 months ending 2026-07). That's 38% below the California average of 32.99¢ and 13% above the U.S. average.
What is the average Imperial Irrigation District electric bill?
About $220 a month. The average Imperial Irrigation District home uses 1,083 kWh a month. At 1,000 kWh the bill would be about $203.
How many customers does Imperial Irrigation District have?
Imperial Irrigation District serves 142,916 residential customers and 165,797 customers in total in California, across 3 counties.
How reliable is Imperial Irrigation District?
In 2025, the average Imperial Irrigation District customer was without power for 114 min (SAIDI) over 0.72 interruptions (SAIFI), including major storms. Excluding major event days it was 56 min. The California average was 5 hr 52 min and the U.S. average 4 hr 26 min.
Does Imperial Irrigation District offer net metering for solar?
Imperial Irrigation District had 14,066 residential net-metered customers in 2025 with 95.9 MW of capacity. Estimate solar savings at this utility's rate.
Sources: EIA-861 2025 and EIA-861M (through July 2026), OpenEI URDB, ORNL EAGLE-I, U.S. Census. Methodology. Spot an error? Rates change often, so confirm with Imperial Irrigation District before making decisions.