“The technology for efficient and cheap energy storage is already here – and it is Danish and matches our energy system and that of entire Northern Europe. For decades, pioneers in Denmark have worked with the PTES technology and have helped ensure that today we have a well-proven foundation for long-term and bankable investments in energy storage, which is an important element in a successful green energy transition”.says Svante Bundgaard, CEO at Aalborg CSP A/S.
These unique design features minimize the heat loss inside the PTES and is contributing to increased efficiency and reliability of the complete energy system. This is a key step in commercializing the PTES technology, where it is expected to see millions of m3capacity of PTES Integrated Energy Solutions installed in Denmark as well as other European countries
A full-scale version of the new PTES lid design has been tested at Marstal Fjernvarme, where it has been included in the Integrated Energy System already counting Solar and Biomass. In Marstal, the new lid replaced the original PTES lid, which was of a previous design and damaged due to moisture accumulation inside the PTES lid construction. This recent replacement has resulted in a full-automatic operation with a minimum of maintenance and supervision. Likewise, the heat loss inside the PTES has been reduced, thereby increasing the efficiency
Owner: Høje Taastrup Fjernvarme A.m.b.a. and VEKS
Capacity of PTES energy storage: 3,300 MWh
Volume of PTES energy storage: 70,000 m3
Area – PTES lid: 11,000 m2
No. of consumers: 500,000
Location: Høje Taastrup, Zealand, Denmark
Expected lifetime of lid: 30 years
CO2savings: 15,000 tons CO2per year