Paavo Lähteenaro

Lahti Energia, owned by the city of Lahti, replaces its old coal power plant with a new biomass burning heat plant freeing the company entirely from coal use.

A hybrid solar thermal and air heat pump system replaces oil fired boiler for producing district heating during low summer month loads.

Heating the production of biogas and fertilizer from biowaste streams and wastewater sludge with heat pumps and composting waste heat.

Ground heat pump is used for heating and cooling the factory buildings.