Vattenfall & AstaReal sign a comprehensive energy deal

Vattenfall and AstaReal are expanding their cooperation through a comprehensive energy contract to recover excess heat from AstaReal’s algae cultivation. The idea is to be able to meet the heating requirements corresponding to 2,500 new apartments in Gustavsberg near Stockholm through the new partnership.

As part of the new energy contract, a customized solution with reversible heat pumps will be installed at AstaReal’s plant in Gustavsberg. This solution makes it possible to efficiently recover excess heat from the production process, which means that more than fifteen million kilowatt hours of heat per year will be recovered and reused in the local district heating network in Gustavsberg.

In addition to the heating contract, Vattenfall will also continue to own and manage high-voltage installations such as transformers and switchgears, as well as supplying climate-neutral electricity. The heat pump plant is being upgraded with a new and much more climate-friendly refrigerant (R1234zee) than in previous solutions.