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 reduced its energy consumption by 23 percent over eight year period and continues to reduce it. A large part