Over the next few years, a projected 6,442 megawatts worth of new geothermal energy are projected to come into operation, more than double the existing 3,152 MW.
With a projected total of nearly 9,600 MW in operation in a few years, that would represent a 304 percent increase, according to the new report, "U.S. Geothermal Power Production and Development Update," (PDF) from the Geothermal Power Association.
As for current production, California leads all other states by a long shot, with more than 2,605 MW in capacity. Nevada is the next closest, at 448 MW. No other state eclipses 50 MW.
Nevada has about 3,300 MW under development, however, compared to less than 2,000 MW of new capacity in California. Oregon, Idaho and Utah also each have 200-300 MW in development.
Here's a look at capacity under development.