Unit 6
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Geothermal energy
using heated water from the Earth’s core to convert into energy
Passive solar heating
capture sunlight within the building’s materials and then release that heat during periods when the sun is absen
Photovoltaic systems
a system capturing energy from sunlight and converting it directly into electricity, are not energy efficient and are very expensive
Lignite
low heat content, low sulfure, do not release air pollution
Bithminous
high in sulfur and heat content, causes acid rain
Anthracite
low sulfur, low pollution, high energy content but low quantity on the earth
Solar energy systems
electrolysis
the application of an electric current to water molecules to spill them into hydrogen and oxygen