The Retrofit Revolution: How GreenFire Energy Is Unlocking Geothermal Power Without Drilling a Single New Well By: Robert Buluma While much of the geothermal energy sector has been focused on breakthrough drilling techniques—deeper wells, hotter reservoirs, and complex engineered systems—a quieter revolution has been unfolding in the background. Instead of chasing entirely new subsurface frontiers, one company has chosen a radically simpler question: What if the answer was already in the ground? GreenFire Energy is advancing a retrofit-first geothermal strategy that targets one of the most overlooked opportunities in the global energy transition: existing wells that are underperforming, depleted, or completely abandoned. Rather than drilling new holes into the Earth, the company is reusing the infrastructure that already exists—turning stranded assets into continuous sources of clean, baseload electricity. This approach is not just technically elegant. It may also be one of ...
When you think of Singapore, what comes to mind? Skyscrapers. Tech. Food. Green innovation. But now, add one more surprising trait to the list: geothermal powerhouse . By: Robert Buluma That’s right beneath the city-state’s highly urbanized northern district lies a blazing opportunity that could redefine Singapore’s energy story. In a recent announcement that’s set the clean energy world abuzz, scientists from NTU Singapore and TUMCREATE revealed astonishing findings from a joint geothermal drilling project. At just 1.76 km underground in Sembawang , temperatures have soared to a jaw-dropping 122°C —a record-breaker for the region, and far higher than the 70°C earlier recorded at a shallower depth in Admiralty. This isn't just hot news. It’s a revolutionary discovery that could reshape how one of the world's most densely populated nations powers its future. 🌋 A Hidden Furnace Below the Urban Jungle This project—backed by Singapore’s National Research Foundation (NRF) and th...