Brista 1
Fuel: Wood chips, approx. 300,000 tonnes
per year
Installed capacity: 42 MW electricity, 108 MW heat
Flue gas condensation: 30 MW heat
Annual production: 290 GWh electricity, 760 GWh heat
Steam data:
144 bar, 540°C
Brista 2
Fuel: Sorted combustible waste from
households and industry,
approx. 240,000 tonnes per year
Installed capacity: 20 MW electricity, 60 MW heat
Flue gas condensation: 12 MW heat
Annual production: 140 GWh electricity, 500 GWh heat
Steam data: 59 bar, 415°C
Facts about Fortum Värme
Fortum Värme is jointly owned with the City of Stockholm
and produces district heating, district cooling and electricity. The company is one of the reasons Stockholm is
counted among the world’s cleanest capital cities and was
designated the world’s first Green Capital by the EU in 2010.
2015-06-29
Facts about the Brista plant
The Brista plant
– sustainable
electricity and heat
Fortum Värme’s new combined heat and
power (CHP) plant in Brista, which burns
house-hold and industrial waste, started up
in the autumn of 2013. Wood chips have also
been used as fuel at the Brista plant since
1997. Customers in the north and west
of Stockholm get their heat and hot
water through the district
heating network.
Water
Plants
Gravel
Soil
Rubber protective layer
Inlet
Geotextile
Natural gravel
Drainage pipe
Geotextile
Clay
New waste-fired CHP plant – Brista 2
The new CHP plant at Brista can handle 240,000 tonnes
of waste per year, which is the amount produced by the
population of the City of Stockholm. The plant also contributes to a sustainable energy supply and provides the Stockholm region with additional district heating and electricity.
The heat from Brista 2 covers the annual needs of 50,000
normal-sized apartments.
The new waste-fired CHP plant at Brista in Sigtuna Municipality is an important step towards Fortum Värme’s goal
of completely resource and climate neutral district heating
in Stockholm before 2030.
How does Brista 2 contribute to a better environment?
Most of the waste used at the Brista plant is produced in
the region and represents what is left after sorting. This is
material that has reached the end of its useful life and can
not be reused or recycled into new material. By burning
waste, we therefore use energy that would otherwise be lost
and save our shared resources.
Some of the waste is imported from other countries.
This is good for the climate and the environment because
the waste would otherwise go to landfill and contribute to
forming the very aggressive greenhouse gas methane. As
we have a great need for district heat in Stockholm and the
rest of Sweden and have advanced technology for extracting
energy from waste with the smallest possible impact on the
climate, importing waste results in reduced greenhouse gas
emissions overall.
How does electricity from Brista help to reduce
emissions in Europe?
Sweden’s electricity system is linked to Europe’s. Reduced
electricity imports to or increased exports from Sweden
are good for the climate because we can avoid electricity
Outlet
The wetland in Steningedalen
is made up of several layers.
Illustration: Kjell Thorsson
produced from fossil fuels in the Nordic Region and Europe.
Our aim is to streamline the energy system as a whole, and
increasing production at our CHP plants reduces the need
for coal-fired power in Europe.
Extra cleaning stage in the Steningedalen wetland
When flue gas condensation water leaves the Brista plant,
it already meets the requirements of the environmental
permit. Fortum Värme has constructed a wetland in the
Steningedalen Nature Reserve for further cleaning.
The wetland also helps to increase biodiversity in the
Steningedalen Nature Reserve by creating habitats for
animals and plants that could not normally live there.
The water that leaves the plant is condensation water
from flue gas. Flue gas is formed by burning waste to
produce heat and electricity. The condensation water is first
cleaned in several stages at the Brista plant, then piped to
the wetland where plants and currents work together to
clean it one more time.
Fortum district heating – renewable and
resource-efficient
Even now, 87 % of all the energy we use to produce heat and
electricity is renewable or recovered. We use energy that
would otherwise be lost from sorted combustible waste, heat
from purified waste water and surplus heat from district
cooling customers.
When our new biofuel-fired CHP plant in Värtan is
commissioned in 2016, we will increase the percentage of
renewable and recovered energy to 90 %.
A combined heat and power plant produces heat and
electricity at the same time – and as much as 90 % of the
energy in a fuel can be extracted. Only 30 % can be
extracted at a condensing power plant. District heating is
therefore extremely resource-efficient. We save on fuel and
safeguard the environment.
Greater investment in resource- and climate-neutral
district heating
Our goal is district heating based on renewable and recovered energy. Brista 2 and ventures planned for the Stockholm
region in the next few years require investments of 7 billion
SEK to bring us closer to our goal.
Along with the new waste-fired CHP plant at Brista,
Fortum Värme is also building one of the world’s largest biofuelled CHP plant at Värtaverket. We have also built a new
transport and storage system in the Energy Port to increase
the proportion of biofuel in the existing Värtaverket.