what makes an energy source reliable
Hydropower is the nationâs most available, reliable, affordable and sustainable energy source. Requiring only the power of moving water â rivers, streams and ocean tidesâ hydropower is also domestic and sustainable.ydropower has been a reliable source of power in the United States for over 100 years. That proven reliability benefits the national electric grid in a number of ways, from supporting other renewable energy sources to stabilizing the network to storing electricity for later use.