The California Energy Commission did a little noticed comprehensive study, undisputed by the nuclear industry, that estimates electricity from new nuclear plants at between $0.17 - $0.34/kilowatt-hour wholesale (the average retail price of electricity is about $0.10/kwh). Even worse, to even get there requires the public to accept a risk premium that insurance companies would value at up to $3.40 for every kilowatt-hour generated.
...The detailed study considered three forms of ownership: merchant plant, investor-owned utility, and publicly owned utility. Merchant plants are built to serve deregulated markets and assume a high degree of market risk. They may not be able to sell all their electricity at any one time if their price is too high. Investor-owned utilities are the traditional private companies serving a regulated market. In California, Pacific Gas & Electric and Southern California Edison are investor-owned. Publicly owned utilities are municipal utilities, like SMUD. Publicly owned utilities pay fewer taxes and have access to lower cost financing than either investor-owned utilities or merchant plants.
The CEC's 186-page report, "Comparative Costs of California Central Station Electricity Generation" , found that a 1,000-megawatt pressurized water reactor would generate electricity in 2018 from as little as $0.17 per kilowatt-hour to as much as $0.34 per kilowatt-hour. These results are startling: Most renewable technologies today, even solar photovoltaics (PV), generate electricity for less than that. Only a municipal utility could generate nuclear electricity for less than the cost of solar PV.
Currently, Germany pays between $0.31 and $0.41 per kilowatt-hour for electricity from solar PV, which means that the cost of solar-generated electricity today is equivalent to the cost estimated by the CEC for a nuclear plant beginning operation in 2018. And all observers, even critics, expect the cost of solar PV to continue declining during the next decade.
And what about insurance?
In an unrelated study for the German Renewable Energy Association, consultants found that nuclear reactors are effectively uninsurable. The 157-page report by Versicherungsforen Leipzig estimated that the premium necessary to insure a nuclear reactor from accident would cost from $0.20 per kilowatt-hour to a staggering $3.40 per kilowatt-hour...
http://www.grist.org/nuclear/2011-06-04-nuclear-power-is-expensive-and-uninsurable