No. It converts methane (natural gas) into electricity, heat, and CO2 to make a modest 1 Gigawatt of electrical power using combined cycle generators (~60% efficient). I've heard that it's also going to be the location for one of the country's largest energy storage systems, storing the excess solar generated during the day for use in the evenings. See the "duck curve" here: https://en.m.wikipedia.org/wiki/Duck_curve
No not nuclear power but steam powered turbines to produce energy.
Thanks! Your answer is awaiting moderation.