renewables Nuclear and hydroelectric=conventional "big two" alternative electricity.
renewable_jobs LABOR intensive: but renewable, no spills, democratic!
solar Photo is CSP mirrors, not cooking reflectors, heating collectors?
solar_PV silicon semi-conductor; modules -> panels -> arrays. 20% efficiency. Thin-film rooftop shingles.
solar_CSP Chicago 228 sq. miles.
solar_energy Passive: also use vegetation Touring the ultimate 'green' house: thermal mass at RMI
wind Windmills 800 Ys pump water. velocity 2X -> 8X energy; more birds killed by cats & windows What's inside a wind turbine? Offshore wind farm on Evanston’s horizon? DeKalb-Lee Wind Farm Noise
geothermal Radioactive decay + pressure. This may not be sustainable if the groundwater is not recharged.
heat_pump Geothermal heating and cooling heat pump using refrigerant liquid/vapor, or antifreeze Earth-Bermed House: heat pumping to the max 54°C year-round
hydrogen H=most abundant element, can deplete OZONE if leaked TP359.H8 H9473 2005(CIRC) The Hydrogen age TP359.H8 H948 2005 Hydrogen Hopes GREEN MACHINE "algae" rm N & C oxides; chlamydomonas release H (hydrogenase) when deprived of sulfur. Algae to produce hydrogen fuel 20:15-25:00 (Hydrogen Hopes) The Bloom Box: a better fuel cell? (Engadget)
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