Iowa's Electric Profile
The IUB has regulatory authority over investor-owned utility (IOU) rates and other service issues. IUB authority is mostly limited to service, safety, and engineering issues for the rural electric cooperative (REC) and the municipal electric utilities in Iowa. The IUB has very limited authority for non-utility generators.
Iowa Utility Electric Profile (2021)
| Utility Type | # of Utilities | # of Customers | % Customers | MWh Sales1 | % Sales |
|---|---|---|---|---|---|
| IOU | 2 | 1,209,421 | 72.33% | 58,781,859 | 82.40% |
| Municipal | 136 | 223,719 | 13.38% | 5,422,679 | 7.63% |
| REC2 | 43 | 238,961 | 14.29% | 7,115,971 | 9.97% |
| Total | 181 | 1,672,101 | 100.00% | 71,340,509 | 100.00% |
Notes: (1) IOU, municipal and REC totals exclude sales for resale. (2) REC totals exclude sales to Generation & Transmission (G&T).
Amana Society Service Company is an investor-owned utility, but it is not rate-regulated due to the number of customers it serves.
Source: 2021 Annual Report (IUB 24/7; Form IE-1, Form EC-1, & Form ME-1)
Iowa Electric Profile (2021 - Including Non-Utility Generation)
|
Electric Generation in Iowa by Primary Energy Source |
2021 Nameplate |
Percent OF NAMEPLATE |
2021 |
Percent |
|---|---|---|---|---|
|
Coal |
5,754.7 | 25.13% | 22,106,594 | 32.89% |
|
Wind |
11,804.1 | 51.54% | 37,098,274 | 55.20% |
|
Nuclear |
0 | 0.0% | 0 | 0% |
|
Natural Gas |
4,027.6 | 17.58% | 6,463,644 | 9.62% |
|
Hydro |
184.4 | 0.81% | 980,071 | 1.46% |
|
Other & Other Renewables |
24.5 | 0.11% | 201,407 |
0.30% |
|
Petroleum |
990.3 | 4.32% | 132,111 | 0.20% |
|
Solar |
118.4 | 0.52% | 224,906 |
0.33% |
|
Total |
22,904.0 |
100.00%3 |
67,207,008 |
100.00%3 |
Notes:
(1) Generation capacity for units greater than 1 MW that are physically located in Iowa; includes non-utility generators such as merchant plants, hospitals, colleges/universities, and industrials.
(2) Generation from units greater than 1 MW that are physically located in Iowa; includes non-utility generators such as merchant plants, hospitals, colleges/universities, and industrials.
(3) The percentages above reflect each category's percentage of the total quantity, rounded to two decimal places. Any differences found by manually summing the percent column are due to rounding.
Sources:
(1) Capacity: U.S. Energy Information Administration (EIA) Report 860 - Final Report 2021
(2) Generation: U.S. Energy Information Administration (EIA) Report 923 - Final Report 2021
Links to other data and information on the electric utility industry.