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.

SMG Silesia member of DEsire's Energy Transformation Platform


We are pleased to announce that SMG Silesia has been officially accepted as a member of the DEsire Energy Transformation Platform - an initiative that brings together key scientific, research and business entities in the region to support decarbonization processes and the modernization of the energy sector in Poland.

What is PTE DEsire?
The DEsire Energy Transformation Platform is an open cooperation structure established by the Silesian University of Technology, the University of Silesia and the University of Economics in Katowice. It brings together universities, research and development units, companies, business environment institutions and other organizations interested in the development of modern energy and the implementation of innovative solutions for decarbonization.i

Objectives and scope of the Platform:

- Initiating and implementing joint R&D and consulting projects for energy transition.
- Developing recommendations and legal and technological solutions to support the modernization of the professional and industrial power industry.
- Organization of trainings, conferences, workshops and other events to popularize knowledge on decarbonization.
- Working with public administrations, local governments, investors and communities to implement a just energy transition.
- Seeking and obtaining sources of funding for projects, including European and national funds.

Benefits of SMG Silesia's membership in PTE DEsire:

- Opportunities to collaborate with scientific and business leaders in the region and participate in interdisciplinary research and development projects.
- Access to the latest knowledge, technology and practices in energy transition.
- Working together to develop innovation, sustainable development and increase the competitiveness of the region.
- Actively participate in shaping energy and climate policy at the local and national levels.

The acceptance of SMG Silesia as a member of the DEsire Energy Transformation Platform was confirmed by a Resolution of the Presidium of the DEsire PTE on March 26, 2025. This is a great honor for us and a motivation to further develop and take on new challenges for green energy transformation.

We thank you for your trust and look forward to fruitful cooperation with all DEsire Partners.