Fervo Energy just switched on what it calls the first enhanced geothermal power plant - and built it in under two years.
The plant took 23 months from start to finish, Fervo says, a build time that's unusually fast for geothermal energy projects, which normally involve years of drilling and permitting. Unlike conventional geothermal plants, which tap naturally occurring steam or hot water reservoirs, enhanced geothermal systems drill into hot rock and engineer the fractures that let fluid flow through it. Fervo says later phases of its development are built to come online even faster than this first plant did.
The speed, not the plant itself, is the headline. Geothermal has long offered something wind and solar can't: steady, round-the-clock power. What it hasn't offered is a construction timeline that competes with gas plants or battery storage. A sub-two-year build suggests enhanced geothermal might finally be catching up on that front, which matters for utilities trying to replace gas peaker plants without losing reliability.
One plant built quickly is a promising data point, not proof the model scales. Whether Fervo can repeat that timeline across different rock, different permitting regimes, and future projects is the real test still to come.