The amount of fossil fuels is declining and the use of fossil fuels has caused serious impact on our environment. In the era of resource depletion and climate change, renewable energy rises like a star and shows us the way. Renewable energy sources are projected to account for more than one quarter of global electricity production by 2020. Hydroelectric power energy, or hydropower, is one of the best renewable energy sources for the future. It is the most widely-used renewable power source. With the global hydroelectric installed capacity exceeding 1,000 GW, Hydropower has accounted for over 16% of the world’s capacity.
How does hydropower actually work? Water released from the reservoir flows through renewable energy water turbines, spinning it, which in turn activates a generator to produce electricity. Flowing water creates kinetic energy that can be captured and turned into electricity. Surprisingly, hydroelectric power doesn't necessarily require a large dam.
Another type of hydroelectric power plant—called a pumped storage plant—can even store power. This type of micro hydroelectric power plant functions as a battery. It stores energy by pumping water uphill from a reservoir at a lower elevation to a reservoir at a higher elevation. During periods of high electrical demand, the water is released from the certain height with sufficient quantity and drives a turbine, generating electricity.
Not every type of business needs two huge reservoirs to supply its own use of electricity. A small or micro-hydroelectric power system can produce enough electricity for a home, farm, or ranch. Each kilowatt-hour of electricity generated by a small scale hydropower system can help the farm be self-sufficient in electricity. The excess electricity generated can also be rolled over for the following month. Hydroelectric generators for home, like some other types of renewable energy sources, make us not only the consumer but also the provider of energy. This will certainly change the way we consume energy.