Water, wind, and solar energy can be replenished over relatively short time spans, so they are called

The answer is renewable source of energy.

Water, wind and solar energy are the sources of energy that can be consumed again and again and hence called as renewable source of energy. Renewable energy is energy that is collected from renewable resources which are replenished naturally. On a human timescale they are replenished and provide energy for the usage of human being. This energy can be these important areas electricity generation, transportation, heating/ cooling, rural energy services.