• [A]
• [B]
• [C]
• [D]
• [E]
• [F]
• [G]
• [H]
• [I]
• [J]
• [K]
• [L]
• [M]
• [N]
• [O]
• [P]
• [Q]
• [R]
• [S]
• [T]
• [U]
• [V]
• [W]
• [X]
• [Y]
• [Z]

Geothermal energy

As used at electric power plants, hot water or steam extracted from geothermal reservoirs in the earth's crust that is supplied to steam turbines that drive generators to produce electricity.