Student housing with control over water treatment

The Student Association in Trondheim chose to use it Apurgo ^M3 for the new and energy-efficient student housing at Moholt.

Saves at least 150,000 kWh a year

The wooden student housing buildings are heated with geothermal heating, solar cells and heat pumps. Heat is recovered from ventilation air and waste water. The Student Association in Trondheim also chose Apurgo’s system for water purification and legionella control. The temperature of the tap water could thus be lowered from 70 to 50 degrees. Altogether, the five buildings could in this way reduce energy use by 150,000 kWh per year.

– With Apurgo, we can accumulate the hot water at a lower temperature. It provides better operating conditions for the heat pumps and at the same time reduces the heat loss in the network, says Kristoffer Abrahamsen, project manager at AF Energi & Miljøteknikk (which supplied the energy center in the project).

Cheap maintenance and operation

Moholt 50/50 also avoids future operating costs since many traditional legionella tasks are no longer necessary.

– Adopting Apurgo is both an energy-related and an operational measure. We save energy by lowering the temperature of the drinking water, and the solution is easier to operate, says Stian Aga, engineering manager at Veidekke Entreprenør, who was the general contractor for the Moholt 50/50 project.