China's First Commercial Supercritical CO2 Closed-Loop Geothermal Project Turns the Earth into a Rechargeable Battery
Summary
Huaneng engineers in Zhengzhou drilled a 2,500-meter well and circulated supercritical CO2 instead of water to extract geothermal heat, China's first commissioned closed-loop demonstration project. CO2 in at 8 degrees Celsius returns at 22 degrees, cutting pumping loss 10% and lifting heat-extraction capacity about 20%.
Why It Matters
This Energy & Climate development affects battery, grid, clean-energy and decarbonization dynamics across Asia. For China, it is a signal worth tracking: it shapes who supplies, who scales, and who sets the standard over the next five years.
Key Facts
- SectorEnergy & Climate
- MarketChina
- ImpactMedium (58/100)
- SignalNews