The document discusses three examples of surface geothermal projects in Freiburg, Germany that provide heating and cooling with carbon dioxide reductions. The first uses 15 probes 99 meters deep connected to a heat pump and concrete activation for a 3700 square meter office building, reducing CO2 by 35 tons per year. The second uses a geothermal well and heat pump with reversible flooring for a private residence of the same size, reducing CO2 by 65 to 85 tons annually. The third is an 18,000 square meter aircraft maintenance warehouse using one 15 meter deep well and probes, with a CO2 reduction target of 200 tons per year.

1. Surface geothermal projects. Examples and financing model

2. Financing geothermal projects through contracting models… … or… Surface geothermal project examples Everybody can afford the carbone reduction challenge!

6. How to make it happen? The contracting model

7. Contracting relationships Heating / Cooling € /kWh, €/kW Supply commitment Exclusive supply agreement Property owner / Contracting party Heating supply contract Tenant Heating delivery contract Wärme Kontor Freiburg GmbH