Four deep geothermal wells have been completed in 2014 for two geothermal doublets, commissioned by ECW. The depth of the top of the reservoir rock (sandstones from the Slochteren formation / Rotliegend) is 2 200 m, where the temperatures reach 90 °C. The produced fluids will be used by ECW to supply heat to several greenhouses with large surface areas. For this reason, ECW is in the process of developing a heating network to transport and distribute the heat from the geothermal doublets, but also for potential users to inject heat into the net. So ECW aims to create a robust and sustainable energy supply.

One of the injection wells at Middenmeer will be available for stimulation tests in DESTRESS as a contingency site, if the sites at Westland or Klaipeda cannot be used.