Question One A (Payback Period) The total cooling load for asmall office building is 20,000 kWh, with annual operating cost of$1,800. The owner wants to replace the existing cooling system withone Question One A (Payback Period) The total cooling load for a small office building is \( 20,000 \mathrm{kWh} \), with annual operating cost of \( \$ 1,800 \). The owner wants to replace the existing c 1 answer