Storage of energy in the subsurface will soon become an important part of the total Danish energy system as part of the necessary leveling out of large variations in energy production and consumption and in order to exploit surplus heat from industry, waste incineration and power production.
The project, called High Temperature Energy Storage (HTES), aims at demonstrating thermal storage in the subsurface limestones of the Copenhagen area, integration into a practical context in the district heating sector, and gaining operational experiences with the technology for subsequent commercialisation.
The heat supply for the HTES system will originate from surplus production from combined heat and power units, industrial surplus heat, and not least surplus heat from sun farms.
The project will run from 2016 to 2020 and has a total budget of 5.5 million DKK (740,000 EUR). In addition to CERE, DTU, and The Geological Survey of Denmark and Greenland (GEUS), the project partners include commercial companies Ross DK (Coordinator), GEO, and OE3i.