| Member state | France |
| Case study | Aéroport de Paris – Orly |
| Description | Faithful to the commitments made at the Grenelle Environment Forum in 2007, Aéroports de Paris creates a geothermal power plant for heating its buildings. Two wells are dug in The Dogger, a 1.8 km depth aquifer. The water comes up at 74°C. Geothermal energy reduces carbon dioxide emission of 9000 tonnes each year. |
| Region>City>location | Paris basin > Paray-Vieille-Poste |
| Owner | Aéroport de Paris (ADP) |
| Operator | ADP ORLY |
| Installed capacity ( MWth) |
135 MWth |
| Installed geothermal capacity | 12 MW |
| DH length (m) |
35 km (108 sub-stations) |
| Inhabitants connected | Airport Heating and sanitary water |
| Operating Temperature of the DH | max temperature 105°C |
| Temperature of the geothermal ressource (production – injection) |
74°C – 40°C |
| Geothermal flow rate |
300 m3/h |
| Production of heating and/or cooling | Heating + Sanitary Water |
| Dates of begining and end of construction | 2008-2011 |
| Administration scheme | French Mining Code |
| Investement for geothermal well |
9M€ for the doublet system |
| Financing (banks, funds, PPP…) |
Banks, Funds, “Fonds Chaleur” |
| Amount of Subsidies if any |
27,40% |
| Administrative permits | Arrêté interpréfectoral du 26 mai 2011 |
| Comparison with fossil energies | Spared CO2: 8200 t/year |
| Taxes | 5,50% |
Aéroport de Paris – Orly
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