User:True Genius
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I no longer use this account: reach me at User talk:The Transhumanist 23:11, 31 October 2006 (UTC)
Energy development Primary energy sources Electrical energy Fuels Fossil energy oil Natural gas Hubbert peak hypothesis Sustainable development Energy sources
nuclear fuel tidal energy geothermal energy solar energy coal hydrocarbon combustion steam turbine electricity Fossil fuel coal petroleum natural gas power plant renewable energy Mining Oil rig Air pollution
- Power grid
- grid-tie configuration
- Power outage
decomposition methane alcohol fermentation pyrolysis air pollution
Flue gas emissions from fossil fuel combustion Biomass to liquid
Unlike the other energy sources in this article, hydrogen fuel cannot be collected or harnessed on earth. Hydrogen fuel must be manufactured with a net loss of energy. As such, it represents chemical energy storage like in other batteries, but it is not a primary energy source. In order to use hydrogen fuel as an energy source, either a) a fuel cell battery is needed to convert the chemicals hydrogen and oxygen into water, and in the process, produce electricity, or b) hydrogen can be burned (less efficiently than in a fuel cell) in an internal combustion engine (e.g. Mazda RX-8 rotary engine).