Fukushima incident physics calculations

Essay on the 2015 Fukushima nuclear accident (see posted instructions). Use the essay template, but this time the limit is 2 pages: the first page for your actual essay with the key results and the second page to show in detail the calculations you did. (Hint: A nuclear power plant is a heat engine. Its thermal power is the total power it produces from fission. The electrical power output is then the thermal power multiplied by the efficiency – which you can calculate from the Second Law of thermodynamics.)