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The Iowa Utilities Board (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 Municipal Electric (Muni) and Rural Electric Cooperative (REC) utilities in Iowa. The IUB has very limited authority for non-utility generators.
Current (most recent) Electric Profile
Iowa's Electric Profile as of December 31, 2007
Wind-powered Electricity Generation in Iowa
Utility Type |
# of Utilities |
# of Customers |
% Customers |
2006
MWh Sales1 |
% Sales |
IOU |
2 |
1,103,531 |
72.20% |
32,580,601 |
75.06% |
Muni |
136 |
208,059 |
13.61% |
5,406,789 |
12.46% |
REC |
46 |
216,863 |
14.19% |
5,419,472 |
12.48% |
Total |
184 |
1,528,453 |
100.00% |
43,406,862 |
100.00% |
Note: (1) IOU and Muni sales exclude sales for resale. REC sales exclude Generation & Transmission (G&T) production.
Source: 2006 Annual Utility Reports (IE-1s, EC-1s, & ME-1s) |
Utility Company Generator Capacity by
Utility Type 1 |
MW |
Percent |
IOU |
9,154 |
83.35% |
Muni |
1,141 |
10.39% |
REC G&T |
688 |
6.26% |
Total |
10,983 |
100.00% |
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Note: (1) Capacity owned by utility companies serving Iowa.
Source: 2006 Annual Utility Reports (IE-1s, EC-1s, & ME-1s) & 2003 IUB Report |
Electric Generation in Iowa by Primary Energy Source |
Nameplate
Capacity (MW)1 |
Percent |
2006
Generation (MWh)2 |
Percent |
Coal |
6,492 |
54.1% |
34,405,292 |
75.6% |
Natural Gas |
2,728 |
22.7% |
2,399,947 |
5.3% |
Fuel Oil / Petroleum |
1,123 |
9.4% |
208,280 |
0.5% |
Nuclear |
597 |
5.0% |
5,095,442 |
11.2% |
Wind |
921 |
7.7% |
2,317,821 |
5.1% |
Hydro |
131 |
1.1% |
909,348 |
2.0% |
Other Renewables |
15 |
0.1% |
147,325 |
0.3% |
Total |
12,008 |
100.0% |
45,483,455 |
100.0% |
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Notes: (1) Capacity physically located in Iowa and includes non-utility generators such as merchant plants, hospitals, colleges/universities, and industrials.
(2) Generation from all Iowa assets as noted in Note 1.
Sources: (1) Capacity: U.S. Department of Energy, Energy Information Administration EIA-860 for Calendar Year 2006. (2) Generation: EIA-906/920 for Calendar Year 2006. |
Links to other data and information on the electric utility industry.
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