Biofuel-fired CHP plant for Kerava

Kerava is a growing Finnish city whose existing capacity for production of district heating is based on small-scale oil- and gas-fired district heating plants. Sweco has designed a combined heat and power plant that provides Kerava with cost-effective and eco-friendly heat and electricity.

Image Kerava plant

When building new capacity, the preferred choice was a peat/biofuel-fired CHP plant. Sweco’s task is to design the new combined heat and power plant in Kerava according to an EPCM model in which Sweco was responsible for all of the project management, engineering design and consulting services necessary to complete the project under a single contract. The CHP plant will produce the district heating and electricity needed by the city in a cost-effective and eco-friendly manner.

The new 80 bara, 480 °C and 28 kg/s BFB boiler will be fired with biofuels, mainly peat and wood-based fuels procured from nearby areas. The steam turbine will supply up to 56 MW of the city’s district heating requirement while producing 21 MW of electricity for consumer use.