Vesam in Katrineholm installs an energy-optimized Primair/Efficool air treatment unit at Friskis and Svettis. The unit is equipped with double rotors and is so-called sorptive cooling. Through the supply of stored solar heat and ordinary water, the air is cooled. The unit provides 90 percent efficiency.

Mimer – Västerås’ municipal housing company – lowers its energy consumption
Mimer reduced its energy consumption by 23 percent over eight year period and continues to reduce it. A large part