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 (Muni) utilities in Iowa. The IUB has very limited authority for non-utility generators.

Iowa Utility Electric Profile (2019)

Utility Type # of Utilities # of Customers % Customers MWh Sales1 % Sales
IOU 2 1,187,752 72.72% 38,250,383 73.91%
Muni 136 219,942 13.47% 6,036,853 11.66%
REC2 43 225,703 13.82% 7,467,862 14.43%
Total 181 1,633,397 100.00% 51,755,098 100.00%

Notes: (1) IOU, Muni and REC totals exclude sales for resale. REC totals exclude sales to Generation & Transmission (G&T). (2)  

Amana Society Service Company is an investor-owned utility but it is not rate-regulated due to the number of customers it serves. 

Source: 2019 Annual Utility Reports (Form IE-1, Form EC-1, & Form ME-1)

Iowa Electric Profile (2018 - Including Non-Utility Generation)

Electric Generation in Iowa by Primary Energy Source

2018 Nameplate
Capacity (MW)1

Percent OF NAMEPLATE
CAPACITY

2018
Generation (MWh)2

Percent
OF GENERATION

Coal

5,821.7

28.99%

28,552,999

45.05%

Wind

8.386.7

41.76%

21,334,053

33.66%

Nuclear

679.5

3.38%

4,895,399

7.72%

Natural Gas

4,093.3

20.38%

7,340,070

11.58%

Hydro

129.2

0.64%

924,861

1.46%

Other & Other Renewables

22.5

0.11%

211,163

0.33%

Petroleum

938.7

4.67%

110,565

0.17%

Solar

9.2

0.05%

11,456

0.02%

Total

20,080.8

100.00%3

57,909,566

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 which 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 percent 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 
(2) Generation: U.S. Energy Information Administration (EIA) Report 923
Links to other data and information on the electric utility industry.

Printed from the website on November 24, 2020 at 12:26am.