September 2026

GER is proud to announce that it will take part in the Innosuisse flagship project SwissSTES (Swiss Seasonal Thermal Energy Storage), alongside a consortium of academic research groups and industrial partners. The project is coordinated by ZHAW (Zurich University of Applied Sciences, based in Winterthur and brings together 6 academic partners and 12 industrial partners, with a total budget of several millions of CHF.

The project aims to develop seasonal thermal energy storage solutions and within the consortium, GER will lead two tasks:

Detailed mapping of underground structures, including caverns, quarries, galleries, tunnels and mines, to assess their potential for heat storage. aims to reduce Switzerland’s dependency on fossil fuels by pioneering seasonal thermal energy storage (STES) to become a net-zero carbon society. An interdisciplinary consortium develops and assesses novel STES technologies and proposes a systemic STES action and implementation plan. 

National mapping of subsurface storage potential in the Molasse Basin and in shallow carbonate formations.

We are pleased to announce that GER SA, together with its partners in the EGEO International Joint Development Agreement, E.GEO Italia and Planeto SA, has been awarded its first pre-feasibility study in France. The client is a major French construction company, and the project is a large school complex and gymnasium in the Paris region.

The project will use an open-loop ground-source heat pump (GSHP) system, drawing on groundwater to provide both heating and cooling.

Our study will:

• analyse the building’s architectural characteristics and energy needs;
• propose a range of technical solutions, with their investment requirements and their financial and environmental benefits;
• compare these solutions with conventional fossil-fuel boilers, including projected future energy costs and the impact on operating expenses (OPEX).

This first mandate in France marks an important step for EGEO International and shows the growing interest in low-carbon geothermal solutions for large public buildings.

#Geothermal #HeatPumps #EnergyTransition #GSHP #Decarbonisation

GER SA, together with its partners Orbis Energy Sàrl, Planeto SA and GMK, has successfully completed a project commissioned by the World Bank’s International Finance Corporation (IFC). The project developed a model for sustainable, affordable and reliable heating and cooling in Turkey, based on 5th-generation networked ground-source heat pumps (NGSHP).

In Phase 1, the team assessed feasibility and identified potential sites for a utility-scale NGSHP system serving roughly 3,000 to 30,000 homes or commercial units. The feasibility study defined the key technical and economic success factors and a set of selection criteria. It also estimated the expected system performance in Turkey and the installation costs for a district-scale network of about 10,000 to 30,000 dwelling equivalents.

The team then applied these criteria to shortlist regions, cities and neighbourhoods, and selected the best candidate for the design phase. This work was carried out in close consultation with local companies, municipalities and authorities to define viable loop routes. The resulting package has been used to procure design and construction engineering services and to secure additional funding.