Demonstration projects are operational in Landau-Pfalz, Germany, and Soultz-sous-Forêts, France, while an earlier effort in Basel, Switzerland was shut down after it triggered earthquakes.
Proyek demostrasi sudah beroperasi di Landau-Pfalz, Jerman, and Soultz-sous-Forêts, Prancis, sementara percobaan awal di Basel, Swiss dibatalkan setelah mengakibatkan gempa bumi.