After drilling deep into the bedrock beneath New York City, crews are nearing completion on a geothermal installation beneath St. Patrick’s Cathedral. A $177-million renovation of the 137-year-old ...

Perfection Contracting’s main business is geothermal. BERGEN COUNTY, N.J. — Cost. It might be the biggest prohibitive factor when selling and installing geothermal systems. And drilling is one of the ...

MARTHA’S VINEYARD, MA — This geothermal rescue was for a closed loop geothermal system that was seriously overheating during the cooling season. This system had ten vertical loops that served 11 heat ...

Heat started radiating from the center of the earth about 4.5 billion years ago, according to the Geothermal Energy Association. That landmark in geothermal history was eventually followed by the ...