As of December 31, 2029, there 22,731 electric generators at about 10,346 utility scale electric power plants in the United States. (Extra info here: Utility-scale power plants have a total nameplate electricity generation capacity of at least 1 megawatt (MW)
The answer of how it is convert is the sun generates energy
by slowly contracting in size; converting gravitational potential energy into
thermal energy and this is called gravitational contraction. Gravitational collapse is the narrowing of an
astronomical object due to the effect of its own gravity, which tends to draw
matter inward toward the center of gravity.
The correct answer would be coal.
The answer is seafloor spreading