Dramatic drops in the stock prices of some publicly traded geothermal energy companies in the last year or so have resulted from a variety of factors. Some companies lacking expertise have done a poor job of developing the geothermal reserves they hold. Some are having trouble getting the capital they need. And in the end, most of the best geothermal reserves in the U.S. may already be taken.
Source: Greenwire, 07/13/2011