Top 10 Geothermal Problems: Why a 24/7 Resource Still Struggles to Scale Image credit : Fida, C.E.O Geosilica... This is what scaling looks like downhole in geothermal pipes Intelligence; Strategy for the Geothermal Decade Geothermal energy is often presented as the clean firm resource that can support a renewable electricity system around the clock. It does not depend on sunshine, it can operate through calm weather, and it can provide heat and power for decades. Kenya already relies heavily on geothermal generation , Iceland uses geothermal heat across its economy, and next generation developers are now signing large power contracts with technology companies seeking reliable carbon free electricity. Yet the global geothermal sector remains small compared with solar and wind, with installed electricity capacity still near 16 GW. That gap is not caused by one obstacle. It is produced by a chain of interlocking problems involving geology, drilling, finance, permitting, public acce...
How Geothermal Energy Works: From Underground Heat to Electricity Grid By: Robert Buluma In 1904, the Italian town of Larderello lit five lightbulbs using nothing but the heat of the Earth. By 1913, a full-scale plant was producing 250 kilowatts there from natural steam vents. Yet more than a century later, geothermal remains one of the most underappreciated clean energy sources on the planet — today accounting for just about 0.5% of global electricity. That is beginning to change. As the world searches for reliable, round-the-clock renewable power to complement intermittent wind and solar, geothermal is attracting unprecedented attention. "Geothermal could be the backbone to providing a clean, affordable, reliable, low-cost grid," says Katrina McLaughlin of the World Resources Institute. With emerging technologies poised to unlock heat virtually anywhere beneath our feet, understanding how this remarkable resource works has never been more important. I. The Fiery Engine Dee...