Imperial Irrigation District
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2025-2028 Rate Update
Rate Update
IID’s updated rates take effect on February 1, 2025. This change is part of our ongoing effort to provide reliable, high-quality power service while maintaining transparency in billing.
| Customer Class |
Energy (Base) Rate (per kWh) |
||||
|---|---|---|---|---|---|
| PREVIOUS |
New - 2025 |
New - 2026 |
New - 2027 |
2028 No Change |
|
| Residential |
11.69¢ |
19.76¢ |
22.30¢ |
24.38¢ |
24.38¢ |
| Mobile Home (Master Metered) |
10.93¢ |
18.84¢ |
20.87¢ |
22.86¢ |
22.86¢ |
| Small General Service First 1,000 kWh Next 6,000 kWh All Over 7,000 kWh |
12.31¢ Tier 1 12.05¢ Tier 2 11.69¢ Tier 3 |
19.60¢ Tier 1 19.19¢ Tier 2 18.61¢ Tier 3 |
20.00¢ Tier 1 19.58¢ Tier 2 18.99¢ Tier 3 |
20.95¢ Tier 1 20.51¢ Tier 2 19.89¢ Tier 3 |
20.95¢ Tier 1 20.51¢ Tier 2 19.89¢ Tier 3 |
| Large General Service |
9.30¢ |
13.95¢ |
13.89¢ |
13.86¢ |
13.86¢ |
| Municipal Service |
11.41¢ |
17.23¢ |
17.47¢ |
18.38¢ |
18.38¢ |
| Agricultural General Service |
9.75¢ |
15.65¢ |
15.62¢ |
15.62¢ |
15.62¢ |
| Agricultural Pumping |
9.52¢ |
15.33¢ |
15.33¢ |
15.33¢ |
15.33¢ |
| Wholesale General Service |
9.77¢ |
15.23¢ |
13.37¢ |
13.27¢ |
13.27¢ |
|
*Energy Cost Adjustment (ECA) will be reduced to zero *Rate does not include fixed charges |
|||||
| Customer Class | Customer Charge (Per Month) | ||||
|---|---|---|---|---|---|
| Current | New - 2025 | New - 2026 | New - 2027 | 2028 - No Change | |
| Residential | $9.60 | $10.50 | $11.40 | $12.25 | $12.25 |
| Mobile Home | $9.60 |
$10.50 |
$11.40 |
$12.25 |
$12.25 |
| Small General Service | $12.00 | $17.50 | $22.50 | $22.50 | $22.50 |
| Large General Service | $140.00 | $140.00 | $140.00 |
$140.00 |
$140.00 |
| Municipal Service | $12.00 | $17.50 |
$22.50 |
$22.50 |
$22.50 |
| Agricultural General Service | $140.00 | $140.00 |
$140.00 |
$140.00 |
$140.00 |
| Agricultural Pumping | $20.00 | $40.00 | $50.00 | $50.00 |
$50.00 |
| Wholesale General Service | $70.00 | $90.00 | $90.00 |
$90.00 |
$90.00 |
Historical Rate Updates
The last base rate update by IID occurred in 2015, with a 7.4% change to the rate structure, and previously 3.5% in 1994.
Since 1994, inflation has gone up 117%; otherwise, the cost of living has more than doubled. Yet, IID’s rates have only gone up 8.15% since 1994.
| 1994 Increase | 3.5% |
| 1995 Decrease (PBC adjustment) |
-2.85% |
| 2015 Increase |
7.5% |
| Total Increases |
8.15% |
| Total Inflation | 117% |
Why the Rate Update is Needed
The revenues generated by the proposed rate update will help IID:
- Invest in capital improvements to modernize an aging fleet
- Support optimal asset management
- Maintain financial stability
- Cover the rising costs of providing reliable electric service
- Comply with state and regulatory mandates
- Meet environmental goals, including greenhouse gas reductions and renewable portfolio standards
- Support the growth of the regional economy
- Facilitate renewable energy development and transmission from the Imperial Valley to the broader California region
Projected Bill Impacts
With the rate update, IID customers can expect the following average monthly changes in their electric bills:
| Customer Class |
Monthly Average kWh Usage | Monthly Bill Impact - 2025 |
|---|---|---|
| Residential | 1,070 | $29.81 |
| Mobile Home (Master Metered) | 820 | $20.92 |
| Small General Service | 2,370 |
$31.73 |
| Large General Service |
63,980 | $579.41 |
| Municipal Service | 4,530 |
$37.15 |
| Agricultural General Service | 54,970 |
$456.89 |
| Agricultural Pumping |
4,850 | $61.42 |
| Wholesale General Service |
38,760 |
$628.84 |
How Our Rates Compare
IID customers will still enjoy some of the lowest electricity rates in California.
If you have questions, our Customer Service team is available at (800) 303-7756.
Helping Customers Save
IID remains committed to supporting the under-resourced communities it serves, particularly those eligible for the Residential Energy Assistance Program (REAP). We offer a variety of programs, tools, and tips designed to help you manage your electric use more efficiently. For more information visit www.iid.com/paymentassistance.