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In previous articles, I've written about several types of alternative energy stocks, including solar energy stocks, wind energy stocks, ethanol stocks and flywheel stocks. Today I'm writing about an alternative energy that hasn't received much press coverage: geothermal stocks.

Geothermal generation utilizes natural underground heat sources to power a turbine which drives a generator. Geothermal comes from the Greek words geo, which means earth, and therme, meaning heat. The literal translation of geothermal is "earth heat." And as it turns out, several of these geothermal stocks are heating up:

  • Calpine Corporation (OTC:CPNLQ): Founded in 1984, this San Jose based company provides electricity in the United States and Canada through the ownership and operation of its own power generation plants. They own 19 geothermal power plants at The Geysers in California.
  • Constellation Energy Group (NYSE:CEG): This 1906 electrical generating company owns and operates generating plants and fuel processing facilities utilizing various types of fuel including nuclear, coal, natural gas, oil, solar, geothermal, hydro and biomass. Yield is 2.1%.
  • IdaCorp, Inc. (NYSE:IDA): This holding company owns Idaho Power Company [IPC], which is involved in the generation, transmission, distribution, and sale of electric energy primarily in southern Idaho and eastern Oregon. Their electrical generation comes from hydroelectric, natural gas, diesel, coal, and geothermal plants. The stock yields 3.3%.
  • Nevada Geothermal Power, Inc. [NGLPF.OB]: This company explores for and develops geothermal projects in the United States to provide electricity. They own a 100% leasehold interest in the Blue Mountain, Pumpernickel, Black Warrior projects in Nevada and the Crump Geyser Project in southern Oregon.
  • Ormat Technologies Inc. (NYSE:ORA): This Nevada based company traded on the New York Stock Exchange and founded in 1965, owns, and operates geothermal power plants, selling electricity in the United States, Guatemala, Kenya, Nicaragua, and the Philippines. They also provide products and services to other geothermal power generators.
  • PG & E Corp. (NYSE:PCG): This California-based electric and gas utility serves 5 million customers. Their electrical generation comes from natural gas, nuclear, hydro, coal, geothermal, wind, and several other types of renewable sources. Yields 2.9%.
  • Polaris Geothermal (OTC:PGTHF): The company is a developer of renewable energy in Latin America. They are currently developing a 66 MW geothermal project on its San Jacinto Tizate concession in Nicaragua.
  • Raser Technologies (RZ): This Utah based company traded on the New York Stock Exchange Arca exchange, and founded in 2003, develops high performance electric motor and controller technology. In addition, it has secured geothermal rights to certain Nevada properties owned by Truckee River Ranches, LLC, under the terms of a 50-year lease agreement.
  • Sierra Geothermal Power Corp [SRAGF.PK]: – Sierra Geothermal is a developer of renewable power from geothermal sources. They have investments in 15 geothermal projects located in Nevada and California. Sierra has also recently completed an approximate $5 million private placement.
  • US Geothermal Inc. (UGTH.OB): This Boise based company, founded in 2002, is involved in the development of geothermal energy power plants in the Raft River area of Idaho.
  • Western GeoPower Corp [WGPWF.PK]: The company develops geothermal energy projects. They own the Unit 15 Steam Field located in The Geyser Geothermal Field in California, United States and the South Meager Geothermal Project in British Columbia, Canada.
  • WFI Industries (WFILF.PK): This Fort Wayne, Indiana company develops and manufactures geothermal heating and cooling systems, for both residential and commercial customers. The company has paid quarterly dividends since September 2003, and currently yields 2.2%. The stock is up over 60% during the last year.
  • Disclosure: Author does not own any of the above at this time.

    Source: Geothermal Stocks: Heating Up