But the power plant consumes chemical energy at a rate of about 2500 MW, creating heat transfer to the surroundings at a rate of 1500 MW. (See Figure \(\PageIndex{3}\).) Later in this text we will loo...But the power plant consumes chemical energy at a rate of about 2500 MW, creating heat transfer to the surroundings at a rate of 1500 MW. (See Figure \(\PageIndex{3}\).) Later in this text we will look at the efficiency of energy transfers in greater detail and learn why they happen the way that they do.