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
Capacity (MW)1

Percent OF NAMEPLATE
CAPACITY

2021
Generation (MWh)2

Percent
OF GENERATION

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.

Printed from the website on December 09, 2022 at 2:36am.