King Waste and King Save

How different could two kingdoms be? In this energy tale, one kingdom is ruled by King Waste. It is a land where everyone uses too much energy. This kingdom's energy will run out some day. The other kingdom is ruled by King Save. Its people use clean energy from the sun, wind, and water. This kingdom will never run out of energy. What will King Waste do? Can King Save help him before it's too late?