 Geothermal Energy Power From the Earth

Definition & Types  “The energy from heat in the Earth’s crust.”  Visible Features  Volcanoes, Hot Springs, Geysers, &Fumaroles  Four Main Types  Hydrothermal  Geopressured  Hot Dry Rock  Magma  Types Of Geothermal Plants  Dry Steam, Flash, & Binary

Location  World’s Largest Development  “The Geysers” North of San Francisco, California  First Geothermal Plant in the Philippines  Capoocan, Philippines  Largest Geothermal Plant in the World  Cerro Prieto Geothermal Power Station (Mexico)  First Geothermal Plant  Larderello (Italy)  1/5 Plants that Power 1/3 of Iceland  Reykjavik, Iceland Reykjavik, Iceland

Resource Benefits  Cost Savings  Saves 80%  Less Fossil Fuel Usage  Less Pollution  Job Creation  Free Hot Water Generation

Environmental Consequences  Damages to Natural Geothermal Features  Pollutes Waterways  Air Emissions  Subsidence  Depletes the Resources

Resource Uses  Heat Greenhouses to Grow Vegetables in the Winter  Drying food/wood  Dying wool to extract gold and silver from ore  Geothermal Power Plants can be used as generators  Heat sidewalks and roads to keep from icing. (Netherlands)

Costs  $15,000- $25,000 on Average  Save about $3,000 All Together  Propane Savings: A little over $3,000  Cost of Operation Savings: $500  Federal Tax Credit: $7,500 or 30% of the Cost

Applicable Legislation  Clean Air Act  Geothermal Steam Act  Clean Water Act  Noise Control Act  Pollution Prevention Act

Extra Facts  Geothermal means Earth-Heat  About 24 Countries Use Geothermal Power  Geothermal is the Main Energy Source in Iceland  The US has Geothermal Plants in 7 States  Geothermal Energy has Been Used Since Ancient Times  In Hot Water Form

Literature Cited  Holt Environmental Science Textbook    profile/ profile/  locations locations      