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Electricity explained  

Data for the United States for 2018 (except where noted).

Note: MW = megawatts, MWh = megawatthours, KW = kilowatts, and kWh = kilowatthours

Electricity generation from utility-scale power plants (net generation)
Total net generation 4,170,912 thousand MWh or about 4.17 trillion kWh
Share of total net generation by energy source  
Natural gas 35%
Coal 27%
Nuclear 19%
Nonhydroelectric renewables 10%
Hydroelectric (conventional) 7%
Petroleum and other sources 1%
Number of electricity generators 22,118
Largest power plant by net generation Palo Verde (nuclear)—31,097,259 MWh or about 31.1 billion kWh
Electricity generation capacity of utility-scale generators (net summer capacity)
Total net capacity
1,094,740 MW or about 1.1 billion KW
Share of capacity by energy source  
Natural gas 43%
Coal 22%
Nonhydroelectric renewables 13%
Hydroelectric (total) 9%
Conventional hydro 7%
Pumped storage hydro 2%
Nuclear 9%
Petroleum 3%
Other <1%
  Total may not equal 100% because of independent rounding.
Largest power plant by capacity Grand Coulee Dam (hydroelectric)—7,079 MW
Electricity consumption (end use) and price
Total end use 3,945,507 million kWh or about 3.95 trillion kWh
Share of end use by type  
Electricity retail sales (total) 96%
Direct use of electricity 4%
Electricity retail sales and shares by sector 3,801,928 million kWh or about 3.8 trillion kWh
Residential sector 39%
Commercial sector 36%
Industrial sector 25%
Transportation sector <1%
Largest electric utility by retail sales (within state) Florida Power & Light Company—110,072,760 MWh or about 110 billion kWh
Retail prices by sector (average annual)  
Residential 12.87 cents per kWh
Commercial 10.67 cents per kWh
Industrial   6.92 cents per kWh
Transportation   9.70 cents per kWh
Average 10.53 cents per kWh
State retail price rankings (average annual price for all sectors) Highest—Hawaii at 29.18 cents per kWh
Lowest—Louisiana at 7.71 cents per kWh
Average residential monthly consumption 914 kWh
Average residential monthly bill $111.65
Largest electric utility by retail sales revenues (within state) Southern California Edison—$11.1 billion
Emissions from electric power plants  
Carbon dioxide (CO2) 1,874,346 thousand metric tons or about 1.87 billion metric tons or about 2.07 billion short tons
Sulfur dioxide (SO2) 1,571 thousand metric tons or about 1.57 million metric tons or about 1.73 million short tons
Nitrogen oxides (NOx) 1,485 thousand metric tons or about 1.49 million metric tons or about 1.64 million short tons

Last updated: November 14, 2019