Some states yet to include geothermal in RPS

Geothermal qualifies as 'green energy' in most of the nearly 30 states that currently have a Renewable Portfolio Standard (RPS), the commitment to use fewer polluting and more renewable energy sources. However, 5 of those states -- Connecticut, Iowa, Massachusetts, New York, and Vermont -- do not include geothermal power in their plans. Why not?

• For more information, visit the Database of State Incentives for Renewable Energy (DSIRE)