Geothermal heating and cooling has been in use for several decades and is a key part of many states’ energy efficiency initiatives. This article looks at the current state of the geothermal industry and the roles distributors are playing in it.

This article is the second in a series examining the current state of the alternative energy market in the U.S.

When alternative energy is discussed, the focus often tends to be on electricity generation. But other elements – such as heating and cooling – have to be included in the conversation, as well.

Geothermal energy can be used for electricity generation, but that is a relatively small part of its role in alternative energy markets. According to the U.S. Energy Information Administration, 24 countries used the heat from the Earth to generate electricity in 2010.

In the U.S., five states had geothermal steam plants in place in 2011.