Water is a source that can be reused and not used up. The wind turbines are also energy producers and work much like the water ones. Solar energy has been experimented with in numerous ways. In Montebello they use the solar screens to light their bus stops at night. Using bacteria manure is turned into fertilizer and methane, which can be burned in gas-powered electrical generators, easing costs of electricity use.
Conservation is another solution that is more effective if everyone does their share.
Albertsons grocery stores have been doing their part by dimming their lights during the day.