What it is
Enhanced geothermal systems (EGS) drill into hot rock that lacks a natural hydrothermal reservoir, then create a flow path and run water through it. Fervo Energy’s Project Red in Nevada produced carbon-free electricity in 2023 and supplied a Google data-center contract. Cape Station in Utah is a larger follow-on under construction, with later power-purchase deals (including a 2026 Google PPA aimed at late-decade operation).
Problem it targets
Conventional geothermal is scarce: you need heat, water, and permeability in the same place. Most of the Earth’s heat is in dry rock. EGS tries to unlock that heat without waiting for a geyser.
How it works
Oilfield-style horizontal drilling and stimulation open a pair of wells. Water circulates, picks up heat, and drives a binary or flash plant on the surface. Induced seismicity must be monitored. This is not “free energy”; it is mining heat with steel and pumps.
Status and players
Fervo Energy (U.S.); Google as an early buyer; other EGS and advanced geothermal firms (Eavor’s closed loops, government FORGE site in Utah). Traditional hydrothermal still supplies most geothermal megawatts worldwide.
Risks and limits
Drilling cost, quakes, water use, and the usual first-of-a-kind delays. A successful pilot is not a terawatt. Geology varies; a Nevada well is not a global template.
Sources
Fervo / Google Project Red announcements (2023 electricity); Fervo Cape Station materials; 26 August 2026 Fervo–Google PPA disclosure for Cape capacity (target commercial operation from 2028 — a contract, not electrons yet).