Paulig at Vuosaari.

Energy Genius of the Year award: waste heat from Paulig’s coffee roastery utilised as district heat

In a unique pilot project of Helen and Paulig, the waste heat of Paulig’s coffee roastery is recovered and utilised in the heating of homes in Helsinki. Today, the project was presented with the Energy Genius of the Year award, which is granted by the Ministry of Economic Affairs and Employment, the Energy Authority, and the state-owned sustainable development company Motiva.

At the Paulig coffee roasting plant in Vuosaari, a new technical solution enables recovery of waste heat in quantities sufficient to cover the annual heat demand of 1,000 one-bedroom apartments. With the solution, Paulig significantly improves the energy efficiency of the coffee roasting lines at the Vuosaari roastery. With the heat recovery system, any waste heat that is surplus to the roastery’s own requirements can be recycled in Helen’s district heating network.

Waste heat plays an important role on the way to carbon neutrality

Helen aims for a carbon-neutral energy system in 2035. Utilisation of waste heat plays a major role on Helen’s road towards carbon-neutral production. Helen is currently investigating, e.g. the possibilities of utilising waste heat from the process industry in the Kilpilahti area in the heating of the Helsinki region, as well as the utilisation of other regional waste heat and environmental heat. Almost 10 per cent of district heat in Helsinki is already produced by utilising the heat of purified waste water and with district cooling. In the Esplanade and Katri Vala heating and cooling plants, Helen recycles and processes the waste heat of its customers back into circulation.

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Photo: Paulig