The prices are averaged over all sectors of consumption. Some details on state by state electricity sources follows:
The percentage of electricity generated from nuclear power varies greatly from state to state within the U.S., on a percentage basis, from highest to lowest, the percentage of total net power generation from nuclear power by U.S. state is (with number of plants): Vermont(1) 85.3%, New Jersey(4) 74.5%, New Hampshire(1) 62.4%, Connecticut(2) 61.6%, South Carolina(7) 58.2%, Illinois(11) 54.4%, Pennsylvania(9) 44.0%, Virginia(4) 43.5%, New York(6) 38.2%, California(4) 37.2%, Arizona(3) 36.6%, North Carolina(5) 34.2%, Nebraska (2) 33.3%, Massachusetts(1) 31.2%, Minnesota(3) 30.2%, Arkansas(2) 29.3%, Georgia(4) 28.6%, Alabama(5) 27.1%, Maryland(2) 26.9%, Mississippi(1) 25.9%, Kansas(2) 21.8%, Wisconsin(3) 21.0%, Louisiana(2) 20.3%, Florida(5) 18.9%, Michigan(4) 16.6%, Texas(4) 12.7%, Missouri(1)11.7%, Ohio(2) 11.6%, Iowa(1) 9.8%, Washington(1) 5.4%.
The following states do not generate any electricity from nuclear power (with percentage of power from coal shown behind each listing): Alaska 3.7%, Colorado 87.5%, Delaware 80.2%, District of Columbia 0%, Hawaii 0%, Idaho 0%, Indiana 98.2%, Kentucky 96.6%, Maine 0%, Montana 4.9%, Nevada 64.5%, New Mexico 88.5%, North Dakota 93.0%, Oklahoma 63.9%, Oregon 8.2%, Rhode Island 0%, South Dakota 37.9%, Utah 95.0%, West Virginia 99.3% and Wyoming 97.2%.
Some states which use nuclear power use very little coal to generate electricity. California, Connecticut, and Vermont get less than 1% of their electricity from coal. New York gets 5.5% of its electricity from coal and Washington gets 3.4% of its electricity from coal.
By and large this data supports my earlier post which suggested that coal powered generation was associated with cheap electricity. But, nuclear power seems to be an important factor in many of the higher cost states, and hydropower is apparently not a factor in Kentucky.