A massive clean energy IPO made enhanced geothermal the hot renewable. What has to happen next for it to succeed

For decades, geothermal was the clean energy technology that was stuck in the margins, a tiny sliver on a pie chart dominated by solar and wind. Despite providing power around the clock, regardless of the weather, it was geographically limited and expensive to build. Over the past two decades, as wind and solar boomed across the grid, geothermal continued to make up only a minuscule fraction of the American electricity supply—more a piece of energy trivia than a viable source of power. But in…