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Vattenfall’s facility in Uppsala consists of several different units that generate electricity and produce district heating, district cooling and steam. Almost 95% of all properties in Uppsala are heated with district heating. The main fuel at Vattenfall’s units in Uppsala consists of household and industrial waste materials. Peat and wood chips are used when the heating demand is high, for example during the winter. Peat will now be phased out and Vattenfall is planning to build a new combined heat and power (CHP) plant fired by biomass. It is expected to be ready by 2020, enabling Vattenfall, like Uppsala city, to reduce its carbon dioxide emissions considerably.

Uppsala Unit 5 burns waste

A new waste combustion unit (Unit 5) was commissioned at the facility in Uppsala in 2005. It was designed to blend in with the local environment. To make sure that this criterion would be fulfilled, an architectural competition was initiated. The winning bidder utilised the slope of the ground, thus limiting the height of the building. It is capable of burning sorted household waste as well as industrial waste. Together with the older boilers, the new unit is able to burn 52 tonnes of waste per hour, equal to 5 freight containers every hour. The installed capacity has risen significantly. The energy in the waste is used to produce district heating and electricity as well as district heating and process steam.

Combined heat and power (CHP) plant

In the main CHP plant, peat and wood chips are transformed into both district heating and electricity. Lime is used to decrease the sulphur emissions. Electro and textile filters are used to remove particles from the flue gas, and a new catalyser with Selective Catalytic Reduction (SCR) technology helps to limit the emissions of nitrogen oxides. Once the new biomass-fired CHP plant is up and running, it will deliver an output of 90 MW of heat and 50 MW of electricity.

The Boland Plant produces heat and steam

The main boiler at the Boland Plant is fuelled by peat and wood chips. It produces district heating. Adding urea and lime to the flue gas decreases the emissions of nitrogen oxides and sulphur, while electro and textile filters are used to remove particles from the flue gas.

We also offer Carbon Neutral Heat

Our customers have asked for district heating with even less environmental impact than we have produced so far. So we are offering larger customers a new solution with CO2 compensated district heating from our waste incineration plant in Uppsala. It provides district heating that is carbon neutral, since we compensate for the proportion of the waste that is not renewable, i.e. the plastic in the waste. We do this by increasing the amount of biomass fuel in our total fuel mix beyond the amount already planned*. As part of our basic planning, we increase the portion of biomass fuel each year, and sales of carbon neutral heat mean that the proportion of biomass fuel is increasing further.

*The compensation is limited to the direct CO2 emissions in our district heating production.

Our heating is Reko certified

The Swedish trade organisation Svensk Fjärrvärme has developed a quality assurance system called Reko for suppliers of district heating. Our district heating has met the requirements of this quality system since 2006. The purpose of the Reko certification is to secure the position of customers and to improve the relationship between customers and suppliers. The focus is on openness, comparability and trust.