ane.energy Supplies Green Electricity for EW Berliner Energie und Wärme Chilling Operations

While Berlin sweats in the summer, the chillers at Potsdamer Platz are running at full capacity. BEW Berliner Energie und Wärme (BEW) supplies offices, apartments, and cultural institutions there, providing cooling for rooms, computers, paintings, musical instruments, and people.

The electricity for this comes from ane.energy – specifically from wind turbines in Schleswig-Holstein.

How is the cooling produced?

BEW uses both compression and absorption chillers for this process:

The compression chillers run on our green electricity.

"Guarantees of Origin document every megawatt-hour of green electricity used," explains our Managing Director, Ralf Höper.

Christoph Weidt, Managing Director of BEW Solutions, adds:

"This is an excellent opportunity for us to make our cooling supply more environmentally friendly."

Absorption chillers convert district heat from the Mitte combined heat and power (CHP) plant into cooling. Heat rejection is handled by hybrid cooling towers, which release the excess heat into the ambient air.

How does the cooling reach the buildings?

Through a 14-kilometer-long underground pipe network, water at 6°C flows to offices, apartments, and cultural institutions. There, it absorbs heat, warming up to about 12°C in the process, and flows back to the central chilling plant. It's a closed loop – quiet, efficient, and reliable.

We are excited about this great project!