where does the energy to hydrolyze water come from
Electrolysis of water This technique can be used to make hydrogen fuel (hydrogen gas) and breathable oxygen; though currently most industrial methods make hydrogen fuel from natural gas instead.
Energy in the United States Most of this energy comes from fossil fuels: in 2010, data showed that 25% of the nation's energy originates from petroleum, 22% from coal, and 22% from natural gas. Nuclear power supplied 8.4% and renewable energy supplied 8%,[5] mainly from hydroelectric dams and biomass; however, this also includes other renewable sources like wind power, geothermal, and solar energy.[6] As of 2006, energy consumption had increased more rapidly than domestic energy production over the last 50 years in the nation (when they were roughly equal). This difference was largely met through imports.[7]