Hearing aid manufacturer Widex has opened its new headquarters just outside Copenhagen in Denmark.

The building combines the use of renewable energy with the maximum recuperation of energy due to a range of features.

All heating and cooling in the building is provided by a geothermal system, the first and largest of its kind in Denmark.

This system reduces CO2 emissions by over 70 per cent, compared to traditional systems. A wind turbine on-site delivers more power annually than Widex uses in total.

Excess power will be delivered to the electricity grid and provide a CO2-free energy contribution to the local area. A total of 20,000 solar cells are also integrated into the building’s façade.

"Fossil fuels are a limited resource that we will definitely use up in not so many years," says Jan Tøpholm.

"Our investment in the building has been substantial, but if one considers rising energy prices then it makes sense financially."