Green HAC – heating and cooling from the depth of the mine?

In abandoned mines… there is a potential! We know that closing them can have negative impact for local communities, but inactive mine shafts can be a base for an eco-friendly system of generation and storage heat and cooling. We named our technology Green GAC because it is an eco-friendly system for heating and cooling.

The innovative method was patented by Michal Rosol, president of SMG Silesia, together with co-authors Lukasz Bartela, a professor at the Silesian University of Technology, and Dr. Sebastian Waniczek. Green HAC will be an underground system for heat and cold extraction and storage using post-mining shafts. They reach hundreds of meters deep into the ground and are an ideal storage area. What's more, the great depth allows for the extraction of geothermal energy.

A technology that supports the national energy system in a positive transformation has come within reach. Green HAC is a simple path to low-cost and environmentally friendly heating and cooling.