Ever wonder how a nuclear plant like Watts Bar makes low-cost electricity? The heat created by nuclear fission is captured and used to create steam. The steam is used to turn a series of large turbines connected to a huge electric generator. How huge? At any moment, a single unit’s generator is producing all of the power needed for 650,000 homes and businesses with no greenhouse or carbon emissions. With both units operational, that’s 2,300 megawatts which is electricity for 1.3 million homes.