At a housing company of three terraced houses in Keuruu oil heating was replaced with ground source heating in 2012. The annual oil consumption had been around 41 500 liters in the housing company. Oil price being 1,01 euros per liter, the heating costs were thereby around 42 000 euros per year. In year 2013 the ground source heating system consumed electricity around 128 000 kilowatt-hours, which means that at electricity price of 0,12 euro per kilowatt-hour the annual heating costs decreased to around 15 300 euros.
Gebwell ground source heating system
9 pc of 200 meter heat wells
90 kilowat Gebwell T ground source heat pump
2 pc of 2000 liter Gebwell G-Energy energy accumulators