Holmgaard is almost CO2-neutral

A more than 200 years old farm house has been made almost C02-neutral

The Kock family has invested in energy-friendly technical solutions years ago. A fire in the house has also meant that the envelope of the house is now highly energy renovated. Before the fire they had already invested in solar heating for warm water, solar cells for electricity, a wood furnace and an air-to-water heat pump. The solar cells on the barn gave the family an expense of only 400 kWh for one years’ consumption.
“It’s a pleasure to follow our heat consumption and see how little we need to by off the common electricity net”, says Jens Peter Kock. The family has not yet ended the rebuild upon the fire, but so much has already happened: app. 140 m2 has been dug out from beneath the floor, the floor has insulated and floor heating added. The house dates back to 1805 and has massive outer walls with cavity, so in stead of cavity insulation, the 195 mm insulation goes directly on the wall. The inner wall is a 10 cm thick multi board in order to avoid putting a vapour barrier on the old clayclad walls. With such thick walls and new energyfriendly windows, the house no longer needs much energy to be heated. The heat source is a mix of heat pump, wood furnace (supplied by wood from their own forest) and solar heat and this mix makes it nealy CO2-neutral.