Use Case 5: Key Results

The RESTORE solution proposed and adapted to Use-Case V has been thoroughly described in this document. This deliverable presents the design, simulation, and performance evaluation of the TCES (Thermo-Chemical Energy Storage) configuration integrated in a geothermal plant, developed by TURBODEN with support from SIMTECH.

Thanks to the integration of the thermochemical reactor, the system can support the district heating network for approximately 358 hours per year, allowing the entire geothermal thermal output to be directed to the ORC. This results in an estimated increase of 500 kW in electrical output during this period.

• Additional electricity produced annually: 179,000 kWh
• Equivalent CO₂ savings: 71.6 tonnes of CO₂ per year (Based on a grid emission factor of 0.4 kg CO₂/kWh)

In summary, the above results demonstrate the environmental and energetic benefit of decoupling heat supply from geothermal extraction during peak heating demand, while enhancing the electrical output when renewable electricity is less available.

Overall, the findings presented in this report reinforce the suitability of the integration of the RESTORE proposed solution to District heating with Geothermal Technology, as virtually demonstrated in Use-Case 5.