Editor: Katerine G., Editor & Data Researcher · Research & publishing: Electric Consumer Editorial Team · Data retrieved · Sources named on this page: EIA-861, EIA retail sales · How we got these numbers · Report an error
Interstate Power and Light Co is an investor owned utility serving 504,146 customer accounts in Iowa; 417,153 of them are residential. Its home price is 33.6% over the Iowa average, place 5 of 5 among larger utilities.
At 714 kWh a month a Interstate Power and Light Co home pays about $128 in energy: 17.90 ¢/kWh, 33.6% above the Iowa average of 13.40 ¢.
Interstate Power and Light Co charged homes 17.90 ¢/kWh against a Iowa average of 13.40 ¢, place 5 of 5 among Iowa companies with 20,000+ homes. The next cheaper is Linn County REC at 14.23 ¢ (-3.67 ¢ from here).
For Interstate Power and Light Co the 2024 file holds no SAIDI/SAIFI row, so those rows read "No data" beside 417,153 home accounts; a missing filing says nothing about service quality.
| Interstate Power and Light Co, 2024 | Home | Business | Bill | SAIDI |
|---|---|---|---|---|
| Interstate Power and Light Co | 17.90 ¢/kWh | 13.42 ¢/kWh | $128at 714 kWh | No dataSAIDI |
| Iowa average against this companyLowest in this table | -4.50 ¢/kWhcompany 33.6% above | -3.20 ¢/kWhcompany 31.3% above | -$32a month at 714 kWh | No data |
Interstate Power and Light Co: -0.8% on 2024 for homes, Iowa +2.4%.
Interstate Power and Light Co reported 17.77 ¢/kWh for homes in 2025, -0.8% on its 2024 figure of 17.90, while the Iowa average moved +2.4%.
14.23 ¢ in 2015, 17.90 ¢ in 2024 (+25.8%).
| Year | Interstate Power and Light C | Gap to Iowa residential | Gap to U.S. residential |
|---|---|---|---|
| 2015 | 14.23 | +2.60 | +1.58 |
| 2016 | 14.77 | +2.83 | +2.22 |
| 2017 | 15.27 | +2.93 | +2.38 |
| 2018 | 15.85 | +3.61 | +2.98 |
| 2019 | 16.70 | +4.24 | +3.69 |
| 2020 | 16.61 | +4.15 | +3.46 |
| 2021 | 16.84 | +4.11 | +3.18 |
| 2022 | 17.75 | +4.60 | +2.71 |
| 2023 | 17.86 | +4.55 | +1.86 |
| 2024 | 17.90 | +4.50 | +1.42 |
10 rows from EIA retail sales.
CSV408,969 in 2015, 417,153 in 2024 (+2.0%).
| Year | Interstate Power and Light C |
|---|---|
| 2015 | 408969 |
| 2016 | 402199 |
| 2017 | 403160 |
| 2018 | 403726 |
| 2019 | 405205 |
| 2020 | 407849 |
| 2021 | 410149 |
| 2022 | 412497 |
| 2023 | 414637 |
| 2024 | 417153 |
10 rows from EIA retail sales.
CSV17.90 and 13.42 ¢ for this company.
Interstate Power and Light Co, Rates 2024: EIA retail sales.
CSV24.4 residential installations per 1,000 accounts.
Interstate Power and Light Co, Net metering: EIA-861 survey.
CSVEnergy sold in 2024 was 13,651,615 MWh over 504,146 accounts, homes 26.2%; the typical home used 8,566 kWh.
EIA-861 holds 10 years of home price for Interstate Power and Light Co, from 14.23 ¢ in 2015 to 17.90 ¢ in 2024 (+25.8%).
Home rates at Interstate Power and Light Co went from 13.72 ¢ in 2013 to 17.90 ¢ in 2024 (+30.5%), which is 18.97 ¢ to 18.38 ¢ in 2025 dollars (−3.1%). Over 12,000 kWh a year the real price meant $2,276 in 2013 and $2,205 in 2024. Of 21 Iowa utilities with 1,000+ home accounts in 2024, Interstate Power and Light Co stood 21st cheapest (67th of 73 in 2013).
Interstate Power and Light Co: 18.38 ¢ in 2025 dollars (solid) and 17.90 ¢ as billed (dashed) in 2024.
| Year, Interstate Power a | ¢ billed | ¢ in 2025 $ | Price place, Interstate Pow | SAIDI min | SAIFI | SAIDI place, Interstate Pow | Iowa median SAIDI |
|---|---|---|---|---|---|---|---|
| 2013 | 13.72 | 18.97 | 67 of 73 | – | – | – | – |
| 2014 | 13.61 | 18.51 | 69 of 74 | – | – | – | – |
| 2015 | 14.23 | 19.33 | 67 of 74 | – | – | – | – |
| 2016 | 14.77 | 19.82 | 70 of 74 | – | – | – | – |
| 2017 | 15.27 | 20.05 | 70 of 73 | – | – | – | – |
| 2018 | 15.85 | 20.32 | 73 of 73 | – | – | – | – |
| 2019 | 16.70 | 21.03 | 79 of 79 | – | – | – | – |
| 2020 | 16.61 | 20.66 | 21 of 21 | – | – | – | – |
| 2021 | 16.84 | 20.00 | 21 of 21 | – | – | – | – |
| 2022 | 17.75 | 19.53 | 21 of 21 | – | – | – | – |
| 2023 | 17.86 | 18.88 | 21 of 21 | – | – | – | – |
| 2024 | 17.90 | 18.38 | 21 of 21 | – | – | – | – |
Interstate Power and Lig, EIA utility 9417: EIA-861, CPI-U.
CSV| Interstate Power and Light Co sector | Accounts | Rate ¢/kWh | Gap to Iowa ¢/kWh |
|---|---|---|---|
| Residential | 417,153 | 17.90 | +4.50 |
| Commercial | 85,663 | 13.42 | +3.20 |
| Topic, Interstate Power and Lig | Status | Detail |
|---|---|---|
| Home price and accounts, Interstate Power and L | 10 years | 2015 to 2024, 417,153 homes in 2024 |
| Business price, Interstate Power and L | Filed 2024 | 13.42 ¢/kWh on 85,663 accounts |
| SAIDI and SAIFI, Interstate Power and L | No data for 2024 | no year of 2015 to 2024 for 504,146 accounts |
| Net metering, Interstate Power and L | Filed 2024 | 13,327 installations, 200.6 MW |
| Service-territory counties, Interstate Power and L | 84 counties | in Iowa |
| Smart meters (AMI/AMR), Interstate Power and L | Filed 2024 | 410,560 of 414,733 home meters AMI |
| 2025 early release, Interstate Power and L | Filed | 17.77 ¢/kWh for homes |
| Year | Home accounts, Interstate Power and L | Home ¢ | Business ¢ |
|---|---|---|---|
| 2015 | 408,969 | 14.23 | 10.42 |
| 2016 | 402,199 | 14.77 | 10.84 |
| 2017 | 403,160 | 15.27 | 11.18 |
| 2018 | 403,726 | 15.85 | 11.96 |
| 2019 | 405,205 | 16.70 | 12.67 |
| 2020 | 407,849 | 16.61 | 12.58 |
| 2021 | 410,149 | 16.84 | 12.84 |
| 2022 | 412,497 | 17.75 | 13.46 |
| 2023 | 414,637 | 17.86 | 13.22 |
| 2024 | 417,153 | 17.90 | 13.42 |
| Company near Interstate Power and on price | Home ¢ | Gap % to Interstate Power and | Accounts, Interstate Power and = 1 |
|---|---|---|---|
| 2. City of Ames | 12.10 | -32.4% | 0.06 |
| 3. Eastern Iowa Light & Power Coop | 13.56 | -24.3% | 0.05 |
| 4. Linn County REC | 14.23 | -20.5% | 0.07 |
| 5. Interstate Power and Light Co (this company) | 17.90 | - | 1.00 |
| Class, Interstate Power and L | Accounts | Of Interstate Power and accounts | Of MWh | kWh a year per account |
|---|---|---|---|---|
| Residential | 417,153 | 82.7% | 26.2% | 8,566 |
| Commercial | 85,663 | 17.0% | 29.3% | 46,764 |
| Industrial and other | 1,330 | 0.26% | 44.5% | 4,565,707 |
| kWh | Share of a 714 kWh month | Cost a month at 17.90 ¢ | Cost a year |
|---|---|---|---|
| 250 | 35% | $44.76 | $537 |
| 500 | 70% | $89.52 | $1,074 |
| 750 | 105% | $134.28 | $1,611 |
| 1,000 | 140% | $179.04 | $2,148 |
| 1,500 | 210% | $268.55 | $3,223 |
| 2,000 | 280% | $358.07 | $4,297 |
84 Iowa counties, region MRO:
Iowa other states: 84 of 84 counties of Interstate Power and Light Co drawn
Interstate Power and Light Co: 84 counties listed by EIA-861, Census 2023 outlines.
CSV504,146 accounts in 2024: residential 417,153, commercial 85,663, industrial 1,330.
In 2024 homes paid 17.90 cents; against the Iowa average that is +33.6%.
Interstate Power and Light Co has no reliability row for its 417,153 homes in EIA-861 2024, so no SAIDI or SAIFI is shown; the Iowa median reporter is 68 min.
13,327 installations with 200.6 MW, of which residential installations number 10,161.
714 kWh at 17.90 cents comes to about $128, energy only.
Rank 5 of 5 in Iowa on price, +33.6% against the state average; 4 charge less than 17.90 ¢.
504,146 accounts sit behind Interstate Power and Light Co, whose 2024 filing lacks no SAIDI/SAIFI row; the other 6 rows of the coverage table are on file.
Homes take 26.2% of 13,651,615 MWh, commercial accounts 29.3%, industrial and other 44.5%.
17.77 cents per kWh, -0.8% on the 17.90 of 2024 (EIA early release for 2025).
Home prices nearest to Interstate Power and Light Co at 17.90 ¢/kWh in 2024, among companies with a page here, any state.