The Home Energy Efficiency Team wants to use thermal energy from Massachusetts' Merrimack River to heat homes, an alternative to natural gas.

Investing in the technology needed to drill for geothermal anywhere could help fulfill a growing corporate interest in 24-7, carbon-free energy.

DOE launched a geothermal lithium extraction competition to find solutions to commercialize extraction at geothermal power plants.

Federal agencies are mapping the surface and subsurface of western Nevada to reveal sites with potential for geothermal energy or lithium.