Electricity generation increased 8.4 percent to 37,104,628 megawatthours in 2013 from 34,217,293 megawatthours in 2012. Most of Nebraska's electricity was generated by coal and nuclear power plants (72.1 percent and 18.5 percent, respectively). Plants using wind generated 4.86 percent, hydroelectric power generated 3.03 percent, natural gas generated 1.18 percent, other biomass generated 0.18 percent, and petroleum generated 0.11 percent.
In 2013, electricity generation by petroleum increased 88.46 percent from 2012, generation by wind increased 40.36 percent, generation by nuclear power increased 18.34 percent, generation by coal increased 6.99 percent, and generation by other biomass increased 6.57 percent. Electricity generation by natural gas decreased 43.3 percent and generation by hydroelectric power decreased 10.59 percent from 2012.
Nuclear electric power generation decreased 37 percent from 2010 to 2011 and 16.32 percent from 2011 to 2012, which was due to the shutdown of the Fort Calhourn Nuclear Plant for the 2010 maintenance period and then from the 2011 flood.
There was an increase in electricity generation from other biomass from electric generators, electric utilities, between 1992–1998, because the Sheldon plant, operated by Nebraska Public Power District, was producing electricity from tire chips. There was no generation reported from this renewable energy source after 1998. The process was discontinued, because it was not considered cost–effective.
Also see the Generating Units report, the Units and Capacity by Energy Source report, and the Units and Capacity by Energy Source and Year of Initial Operation report for additional information.