A power plant supplies 1,100 megawatts of power to the electric grid. how many joules of energy does it supply each second?

The answer is it will supply 1.1 x 10⁹ J of energy each second.

we can calculate this by using the following equation;

P = W/t

W = P x t

and by work energy relation;

E = W = P x t

1 watt = 1j/s

1megawatt = 1000000 = 10⁶ j/s

E = 1100 x 106 x 1

E = 1.1 x 10⁹ J