Onnelanpolku – near zero energy housing

Onnelanpolku is the first large sheltered housing project with an energy solution based on diverse use of renewable energy, high levels of energy efficiency, and effective utilisation of free and surplus energy. Onnelanpolku provides lifespan housing in a dynamic operating environment. 

Onnelanpolku is the first passive apartment building in Finland to be certified by the Passive House Institute. Electricity consumption is minimised through the use of energy-efficient ventilation equipment and pumps. Special care was taken to ensure indoor thermal comfort and good indoor air quality. Efficient LED lights and lighting for common areas are based on presence/absence detectors and regulated depending on the amount of natural light available. A hybrid heating system for domestic hot water and space heating was implemented with a combination of solar thermal collectors and district heating.

More information:

Lahti Foundation of Housing and Services for the Elderly (Lahden vanhusten asuntosäätiö)
http://www.lvas.fi/onnelanpolku

PDF brochure: Hybrid_Heating_System_Nursing_Home_Lahti.pdf

Solar panels on top of Onnelanpolku nursing house