Mitsubishi Power Europe has signed a contract with Stockholm Exergi, the largest local district heating, cooling and electricity provider, to modernise the Combined Heat and Power (CHP) plant – Kraftvärmeverk 1 (KVV1) at Värtaverket, Stockholm. The renovation project will enable higher energy efficiency and local renewable electricity production.
Although the plant was originally built in 1976 for fossil fuels, Mitsubishi Power Europe will modernize the boiler to handle sustainable recycled fuels like bio-oil. The large-scale renovation involves automating the plant’s control system to a modern Distributed Control System (DCS) and installing new low NOx burners to reduce nitrogen dioxide emissions. The project also includes repairing pressure parts, installing selected sub-systems, and upgrading critical components. The CHP plant will be fully commissioned during the heating period in 2023 following two scheduled outages during the summer months for retrofitting.
Stockholm Exergi contributes to increasing resource efficiency by using renewable or recycled energy sources; 99% of the district heating is generated from renewable or recycled fuels. In addition, increased urban migration and seasonal temperature variations with more intense cold spells led to a gap in the demand and supply of electricity early in the year.
