States › Colorado › San Isabel Electric Assn, Inc
electric cooperative · EIA utility 16616
San Isabel Electric Assn, Inc
Average price is revenue divided by sales for the sector and year; it is not a tariff rate. Reliability figures are as reported by utilities to EIA on Form 861 and may use different calculation methods. Annual figures: Form EIA-861 for 2024, final release. Monthly state figures run to July 2026.
San Isabel Electric Assn, Inc is an electric cooperative that reported 23,289 residential customers in Colorado on Form EIA-861 for 2024, with a service territory that touches 7 counties.
Its average residential price that year was 17.78¢ per kilowatthour, 19% above the Colorado average of 14.92¢ and 7.9% above the US average of 16.48¢. The figure is residential revenue divided by residential sales, so it folds in fixed charges, riders and every rate schedule the utility bills under.
That works out to an average residential bill of $116.24 a month on average use of 654 kWh a month. Across Colorado the average bill was $100.57 on 674 kWh, so a bill gap reflects how much power households use as well as what each kilowatthour costs.
For reliability it reported a SAIDI of 81.3 minutes per customer with major event days included and 81.0 minutes with them excluded, calculated under another method. The median among Colorado utilities reporting was 157.8 minutes with major event days; this utility's figure is 48% below that median.
The average price is up 8.2% on 2019, against up 22.5% for Colorado as a whole, and up 4.2% on 2023. EIA's early release for 2025, which has not been fully edited, shows 18.86¢.
Compared with Colorado, the US and other electric cooperatives
| Measure, 2024 | This utility | Electric cooperatives, US median | Colorado | United States |
|---|---|---|---|---|
| Average residential price per kWh | 17.78¢ | 13.74¢ | 14.92¢ | 16.48¢ |
| Average monthly residential bill | $116.24 | $149.95 | $100.57 | $142.26 |
| Average monthly use, kWh | 654 | 1,126 | 674 | 863 |
| Residential price change, 1 year | +4.2% | — | +4.3% | +3.0% |
| Residential price change, 5 years | +8.2% | — | +22.5% | +26.7% |
| SAIDI, all events (minutes) | 81.3 | 263.0 | 157.8 median | 184.5 median |
| SAIDI, without major event days | 81.0 | 147.0 | 85.4 median | 99.8 median |
State and US prices, bills and use are EIA's own averages over every customer. The ownership column and the reliability columns are medians across utilities with at least 1,000 residential customers, computed on this site from the final 2024 file. Among the 25 filings by electric cooperatives in Colorado, the median price was 15.42¢. In Colorado this utility's price ranks 2 of 30, counting from the highest.
Average price by year
San Isabel Electric Assn, IncColorado averageUS average
Year by year
| Year | ¢ per kWh | Colorado ¢ | Monthly bill | kWh a month | Residential customers | All sales |
|---|---|---|---|---|---|---|
| 2025 early release | 18.86¢ | 15.85¢ | $118.40 | 628 | 23,415 | 419 GWh |
| 2024 | 17.78¢ | 14.92¢ | $116.24 | 654 | 23,289 | 410.7 GWh |
| 2023 | 17.06¢ | 14.30¢ | $112.59 | 660 | 23,079 | 433.2 GWh |
| 2022 | 16.35¢ | 14.19¢ | $109.56 | 670 | 22,826 | 421.3 GWh |
| 2021 | 16.31¢ | 13.07¢ | $110.19 | 676 | 22,468 | 430.7 GWh |
| 2020 | 15.98¢ | 12.36¢ | $112.80 | 706 | 22,028 | 425 GWh |
| 2019 | 16.43¢ | 12.18¢ | $110.56 | 673 | 21,688 | 424.3 GWh |
| 2018 | 16.41¢ | 12.15¢ | $111.12 | 677 | 21,572 | 464.3 GWh |
| 2017 | 16.57¢ | 12.17¢ | $107.16 | 647 | 21,357 | 458.1 GWh |
| 2016 | 16.46¢ | 12.07¢ | $108.11 | 657 | 21,144 | 439.3 GWh |
| 2015 | 16.62¢ | 12.12¢ | $106.64 | 642 | 20,984 | 451.9 GWh |
| 2014 | 16.76¢ | 12.18¢ | $106.45 | 635 | 20,923 | 448.5 GWh |
| 2013 | 14.95¢ | 11.93¢ | $95.21 | 637 | 20,868 | 446.3 GWh |
Bundled residential service only in the price, bill and use columns. Bill = residential revenue ÷ customers ÷ 12; use = residential sales ÷ customers ÷ 12. EIA describes its early release as not fully edited; it is shown for this utility alone and enters no average, median or rank on this site.
Sales by sector, 2024
| Sector | Customers | Sales | Share of sales | Revenue | ¢ per kWh, bundled |
|---|---|---|---|---|---|
| Residential | 23,289 | 182.7 GWh | 44% | $32,484,100 | 17.78¢ |
| Commercial | 2,745 | 85.8 GWh | 21% | $13,809,000 | 16.09¢ |
| Industrial | 12 | 142.2 GWh | 35% | $10,293,000 | 7.24¢ |
Customers, sales and revenue count every service type the utility reported (bundled, energy-only and delivery-only). The price column uses bundled service alone, because part-bill revenue would understate it. Sources of energy: 437 GWh in total, of which 0% was its own net generation and 437 GWh was bought wholesale; summer peak demand 83 MW.
Reliability
Minutes of sustained interruption per customer in 2024, as the utility reported them under another method. SAIFI: 0.75 interruptions per customer with major event days, 0.75 without; CAIDI 108.8 minutes per interruption. EIA's Colorado total across all reporting utilities was 255.1 minutes with major event days and 119.0 without. Major event days are storms and similar events that a utility's chosen method sets apart; methods differ, so treat comparisons as approximate. What SAIDI and SAIFI mean.
| Year | SAIDI, all events | SAIDI, no major events | SAIFI, all events | SAIFI, no major events | Method |
|---|---|---|---|---|---|
| 2025 early release | 86.8 | 86.8 | 0.79 | 0.79 | Other |
| 2024 | 81.3 | 81.0 | 0.75 | 0.75 | Other |
| 2023 | 85.7 | 85.7 | 0.77 | 0.77 | Other |
| 2022 | 123.5 | 123.5 | 1.13 | 1.13 | Other |
| 2021 | 394.8 | 124.0 | 0.97 | 0.96 | Other |
| 2020 | 316.8 | 198.9 | 1.22 | 1.21 | Other |
| 2019 | 351.2 | 177.4 | 0.92 | 0.92 | Other |
| 2018 | 1,586.3 | 163.9 | 3.44 | 1.08 | Other |
| 2017 | 10,381.7 | 174.2 | 3.52 | 1.16 | Other |
| 2016 | 1,795.8 | 219.0 | 2.63 | 1.44 | Other |
| 2015 | 595.3 | 216.1 | 2.97 | 1.82 | Other |
| 2014 | 217.0 | 217.0 | 1.47 | 1.47 | Other |
| 2013 | — | 2.0 | 2.24 | — | Other |
Counties in its service territory
Counties the utility listed on Form EIA-861 for 2024. Listing a county does not mean the utility serves all of it.
Other utilities in Colorado
| Utility | Ownership | Residential customers | ¢ per kWh | Monthly bill | SAIDI, all events | SAIDI, no major events |
|---|---|---|---|---|---|---|
| Yampa Valley Electric Assn Inc | Cooperative | 23,822 | 16.78¢ | $144.90 | 294.0 | 234.1 |
| Mountain Parks Electric, Inc | Cooperative | 19,183 | 15.98¢ | $119.36 | 148.7 | 85.4 |
| Grand Valley Power | Cooperative | 17,268 | 15.94¢ | $126.25 | 94.3 | 94.3 |
| Delta Montrose Electric Assn | Cooperative | 32,575 | 14.97¢ | $107.26 | 157.8 | 96.0 |
| Empire Electric Assn, Inc | Cooperative | 13,845 | 15.37¢ | $108.17 | 158.2 | 158.2 |
| La Plata Electric Assn, Inc | Cooperative | 39,931 | 16.71¢ | $110.35 | 184.1 | 72.2 |
| San Miguel Power Assn, Inc | Cooperative | 12,154 | 16.32¢ | $132.08 | — | — |
| Poudre Valley REA, Inc | Cooperative | 49,587 | 12.21¢ | $108.03 | 324.6 | 74.2 |
All Colorado utilities · Electric cooperatives nationwide
Questions and answers
How much does electricity cost from San Isabel Electric Assn, Inc?
Residential customers paid an average of 17.78¢ per kilowatthour in 2024. EIA derives this by dividing residential revenue by residential sales; it is an average across all rate schedules and charges, not a tariff rate.
How does that compare with Colorado?
The Colorado average residential price in 2024 was 14.92¢ and the US average 16.48¢; San Isabel Electric Assn, Inc was 19% above the state figure. Among 30 utility filings with a bundled residential price in Colorado, it had the 2nd highest.
What is the average San Isabel Electric Assn, Inc bill?
$116.24 a month in 2024, on average residential use of 654 kWh a month (annual revenue and sales divided by customers and by twelve). The Colorado average was $100.57 on 674 kWh.
How reliable is San Isabel Electric Assn, Inc service?
It reported 81.3 minutes of interruption per customer (SAIDI) including major event days and 81.0 minutes excluding them, with 0.75 interruptions per customer (SAIFI) in 2024. Utilities calculate these under differing methods, so comparisons are approximate.
Is the San Isabel Electric Assn, Inc price rising?
The average residential price was up 4.2% in 2024 compared with 2023 and up 8.2% compared with 2019. EIA's early, not fully edited release for 2025 shows 18.86¢.
Which counties does San Isabel Electric Assn, Inc serve?
Its Form EIA-861 service territory lists 7 counties: Costilla County, CO, Custer County, CO, Fremont County, CO, Huerfano County, CO, Las Animas County, CO, Otero County, CO and Pueblo County, CO. A county can appear in several utilities' territories.
Provenance
Source: U.S. Energy Information Administration. Annual figures are from Form EIA-861 (sales to ultimate customers, reliability, operational data and service territory files), final release for 2024, respondent "San Isabel Electric Assn, Inc", utility number 16616; the 2025 row is from EIA's early release. State and US averages are from the Form EIA-861M sales and revenue workbook, published through July 2026. All are US government works in the public domain. Page built 30 Sep 2026. Errors in processing are corrected at the next build; see corrections. For tariffs and rate schedules, consult the utility or the state utility commission.