Electricity generation decreased 5.2 percent to 34,217,293 megawatthours in 2012 from 36,095,052 megawatthours in 2011. Most of Nebraska's electricity was generated by coal and nuclear power plants (73.1 percent and 17.0 percent, respectively). Plants using wind generated 3.75 percent, hydroelectric power generated 3.67 percent, natural gas generated 2.25 percent, other biomass generated 0.18 percent, and petroleum generated 0.07 percent.
In 2012, electricity generation by natural gas increased 80.82 percent from 2011 and generation by wind increased 22.15 percent. Electricity generation by petroleum decreased 39.3 percent, generation by hydroelectric power decreased 22.27 percent, generation by nuclear power decreased 16.32 percent, generation by coal decreased 3.64 percent, and generation by other biomass decreased 3.5 percent from 2011.
Nuclear electric power generation decreased 16.32 percent from 2011 and 37 percent from 2010, 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.