Renewable. Sustainable. Reliable.

Geothermal Energy

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  • Geothermal energy is produced inside the earth. It can be in different kinds of forms such as geysers, volcanoes, & hot springs.
  • There are 3 main ways which are used to extract geothermal energy from underneath: Dry Steam, Flash Steam, & Binary Power Plant.
  • Many countries around the world are efficiently using this kind of energy including: Japan, Mexico, Indonesia, & France.
  • The US also uses geothermal methods, but it supplies only about 1% of our energy. Can we make a change? Use YOUR potential.

How Geothermal Power Works

Cost

  • The cost of actually building a geothermal plant is the bulk of the expenses; the cost of the fuel to maintain it is not that much. The initial cost for the field and power plant is around $2,500 per installed kW.
  • The cost for a small (<1Mwe) power plant is $3,000 to $5,000/kWe
  • Operating and maintenance costs from $0.01 to $0.03 per kWh
  • Most geothermal power plants can run at greater than 90% availability (producing more than 90% of the time), but running at 97% or 98% can increase maintenance costs. Higher-priced electricity justifies running the plant 98% of the time because the resulting higher maintenance costs are recovered.

Energy 101: Geothermal Energy

DISCLAIMER

Only remains sustainable if reservoirs are properly managed; is very location specific, so prime sites are often far away from population centers and there may be losses due to long distance transmission of electricity; minimum geothermal fluid temperature of 300 degrees Fahrenheit required; in extreme cases may cause earthquakes.

By Jane & Anjali