Aalborg CSP Secures New Contract with PTES low-cost Energy Storage Technology

  • Sep 18, 2021
  • Energetica India

Danish energy storage and solar energy specialist, Aalborg CSP has now secured the second Pit Thermal Energy Storage (PTES) contract in less than a year. The project is to be installed in Dronninglund, Denmark, where Dronninglund Fjernvarme required an upgrade of an existing PTES containing less reliable lid solution. As water accumulation within the insulation layers of the existing PTES from 2015 proved to be unrepairable, Dronninglund Fjernvarme searched the market for the ideal solution to solve the challenges.


Chairman of the Board at Dronninglund Fjernvarme, Svend Bøgh explains- “Our existing lid construction was unable to do the job any longer and had to be replaced. Following the public tender, we decided to go with the attractive economical while still high-quality solution. We are pleased that Aalborg CSP won the EPC tender with their certified PTES technology, which for Dronninglund Fjernvarme gives us high comfort and trust in terms of a long-term and reliable solution”.


There is a rapid growth in demand for low-temperature reliable storage solutions like the PTES technology. After installing a similar PTES lid in Marstal, Aalborg CSP has experienced profound interest for the lid technology, and has therefore been working intensely on optimizing the solution in order to be able to provide future customers with not only a state of the art technical solution, but also the lowest possible price.


“We are proud of the trust that Dronninglund Fjernvarme has bestowed onus and the unique technical solution, which we have optimized during the COVID-19 lockdown. Despite the difficult market conditions for raw materials, we have succeeded in offering the technically optimal solution of a state of the art system at an attractive price; all due to extremely hard work from the Aalborg CSP team and our suppliers”- states CEO of Aalborg CSP, Svante Bundgaard.


Given the background for the new PTES, a large amount of old insulation was suitable for reuse and as such it was possible for Aalborg CSP to recycle these materials in the best way. Hence, a key element within the offered solution became cost optimization and re-integration of the old insulation material.


“In a time of increased focus on sustainability, it was important for us to recycle as much of the materials as possible to reduce the environmental footprint as well as to offer Dronninglund Fjernvarme the least expensive solution. The recycling of the old materials combined with the new lid technology, ensures Dronninglund Fjernvarme the best insulated storage to date”- says Product Manager PTES from Aalborg CSP, Morten Vang Bobach.