Sources of Missouri utility-scale electricity generation:
full-year 2023 [1]
This is a list of electricity-generating power stations in the U.S. state of Missouri . In 2022, Missouri had a total summer capacity of 21,128 MW through all of its power plants, and a net generation of 79,361 GWh. [2] In 2023, the state's electrical energy generation mix was 60.1% coal, 13.7% nuclear, 13.6% natural gas, 10.1% wind, 2% hydroelectric, 0.3% solar, 0.2% biomass, and 0.1% petroleum. [1] Small-scale solar, which includes customer-owned photovoltaic panels, delivered an additional net 721 GWh of energy to the state's electrical grid in 2023. This was more than four times the amount generated by Missouri's utility-scale photovoltaic plants. [1]
| Plant | Owner | Net summer capacity (in MW) | Notes |
|---|---|---|---|
| Callaway (Callaway Nuclear Generating Station) | Ameren Corporation | 1,193 | Missouri's only nuclear power plant; began operations in 1984. [3] |
Data from the U.S. Energy Information Administration. [4]
According to the Sierra Club, as of 2016 there were a total of 16 coal-fired power plants in Missouri, a decrease from 2012, when there were 23. [5] A Missouri City coal-fired power plant operated by Independence Power & Light closed in 2015; the facility was aging (60 year old) and could not comply with U.S. Environmental Protection Agency pollution regulations. [6] In January 2015, Kansas City Power & Light Co. announced plans to stop burning coal at three of its generating units at Montrose Station, one unit at Lake Road Station, and two units at Sibley Station. Coal burning would cease in phases (two units ceasing at the end of 2016, two at the end of 2019, and two at the end of 2021). [7]
| Plant | Owner | Net summer capacity (in MW) | Notes |
|---|---|---|---|
| Labadie | Ameren Corporation | 2,371 | |
| Iatan | Evergy | 1,594 | |
| Rush Island | Ameren Corporation | 1,182 | |
| New Madrid | Associated Electric Coop, Inc. | 1,154 | |
| Thomas Hill | Associated Electric Coop, Inc. | 1,133 | |
| Sioux | Ameren Corporation | 974 | |
| Hawthorn | Evergy | 948 | |
| Meramec | Ameren Corporation | 938 | Closed in December 2022. [8] |
| Sibley Generating Station | Evergy | 524 [9] | Closed in December 2018. |
| John Twitty Energy Center | Springfield City Utilities | 603 [10] |
| Plant | Owner | Net summer capacity (in MW) | Notes |
|---|---|---|---|
| Dogwood Energy Facility | Dogwood Power Management, LLC | 616 | |
| James River Power Station | Springfield City Utilities | 362.5 [11] | Formerly coal powered, converted to natural gas in 2015 [12] |
| Nodaway | Associated Electric Coop, Inc | 207 [13] |
The Missouri Department of Natural Resources reports that the state has 9 pumped-storage hydroelectricity facilities and 20 conventional hydroelectric plants; the latter including the Bagnell Dam on the Osage River, which has a capacity of 176 MW, [14] and the Table Rock Dam on the White River, close to Branson. [15]
In 2014, Missouri's largest solar farm was located in Greene County, on a 57-acre plot owned by City Utilities, and is operated by Strata Solar. It generates a mean of 4.95 MW that contribute to City Utilities' transmission grid. [16] Since 2017, the largest solar farm in Missouri is the Nixa Solar Farm and is owned by Gardner Capital and operated by MC Power Companies. It is located on 72 acres and can generate up to 7.92 MW for Nixa Utilities. In 2018 it supplied Nixa with about 9% of its energy needs. [17]
The net capacity factor is the unitless ratio of actual electrical energy output over a given period of time to the theoretical maximum electrical energy output over that period. The theoretical maximum energy output of a given installation is defined as that due to its continuous operation at full nameplate capacity over the relevant period. The capacity factor can be calculated for any electricity producing installation, such as a fuel consuming power plant or one using renewable energy, such as wind, the sun or hydro-electric installations. The average capacity factor can also be defined for any class of such installations, and can be used to compare different types of electricity production.
