Nuclear energy must increase by more than 10% each year from 2010 to 2050 to meet all future energy demands and replace fossil fuels, but this is an unsustainable prospect.

According to a report published in Inderscience's International Journal of Nuclear Governance, Economy and Ecology such a large growth rate will require a major improvement in nuclear power efficiency otherwise each new power plant will simply cannibalize the energy produced by earlier nuclear power plants.