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Co-generation and District Heating Systems based on biomass, geothermal and solar thermal energy

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carbon emissions similar to oil fired boilers. 2008-11-07 ... Boiler 5. Available Technology and Investments with rapid pay-off ... – PowerPoint PPT presentation

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Title: Co-generation and District Heating Systems based on biomass, geothermal and solar thermal energy


1
Co-generation and District Heating Systems based
on biomass, geothermal and solar thermal energy
  • Erik Larsson
  • Manager, Energy Policy
  • Swedish District Heating Association

2
District Heating in Sweden
  • 9 million inhabitants
  • 50 TWh district heating
  • Almost 50 of total heat market
  • Present in every community with more than 10 000
    inhabitants
  • More than 600 DH systems
  • Still growing
  • Turnover 2,7 billion euro
  • Competing on the heat market

3
Fuel/energy used for District Heating in Sweden
1980 to 2005
4
Evolution in CO2 emissions globally and in Sweden
Significant investments in District Heating are
launched
5
We do not need fossil fuel for heating only!
6
Why can I say so?
SourceECOHEATCOOL project
7
Strategic heat sources
2003 flow from the five strategic heat sources
for district heating in EU-32 (in EJ). Possible
supply is approx. 200 times higher!
SourceECOHEATCOOL project
8
District heating effects
  • Doubling the sales of district heat in Europe
    would
  • Reduce primary energy consumption by 2,1 EJ/a
    (Primary energy consumption of Sweden)
  • Reduce import dependency by 4,5 EJ/a (Primary
    energy consumption of Poland)
  • Reduce CO2 emissions by 400 mln tons / 9,3 (
    Emissions of France from fossil fuel combustion)

SourceECOHEATCOOL project
9
Primary resource factors
Primary resource factors express the ratio
between the non-regenerative energy input and
final energy used. The lower the PRF of a
technology (in operation), the greater its
contribution to reduce the use of fossil primary
energy
10
To build new passive-houses is easy but how to
make this house zero-emitting ?
11
Examples of low emitting District Heating
12
Solar heating connected to District Heating
Eksta Malmö Odensbacken Falkenberg Säter Kungälv N
ykvarn Brædstrup, DK Marstal, DK
0,01 of total Swedish DH
13
Geothermal energy in District Heating
  • Defined as energy from the ground or lakes
    utilized by heat pumps. (RES dir)
  • Average COP of 3,1 heat pumps cover 8 of
    Swedish District Heating
  • Decreasing because
  • carbon emissions similar to oil fired boilers

14
Efficiency of production of electric power in
EU-27 in years 2000 and 2005
15
Sundsvall 1968-2008What you dont see on the
picture
Facts Population 95 000 Area 3 200 km2
Yield from 35 to 80
Fossil fuels -80 (in 2012
0 fossil fuels)
After
Before
16
Sundsvall 1968-2008What is all this?
REGULAR POWERPLANT
60 heat losses
40 electricity
10 heat losses
20 waste heat
40 electricity
50 heat or cooling
10 free cooling
17
Sundsvall 1968-2008What is all this?
REGULAR POWERPLANT
40 useful energy
60 heat losses
40 electricity
gt90 useful energy
10 heat losses
20 waste heat
40 electricity
50 heat or cooling
20 free cooling
18
Sundsvall 1968-2008In practice
Replaced 4000 individual heat furnaces by 2
central CHP plants and 3 local industries
producing waste heat
CHP DH
Installed 230 km of pre-insulated pipes
currently extending network with 25 km/ year
Connected 95 of all large buildings to the
network now adding 400 residential houses / year
Introducing District Cooling connecting large
houses to a network of pipes circulating cold sea
water, thereby replacing AC systems
19
DH/CHP plant in Västerås, Sweden
20
Available Technology and Investments with rapid
pay-off
To double the District Heating share in Europe
from 7 to 15 70 B investment lt4years
pay-off time 10 reduction in CO2 emissions
would reduce the need for fossil fuel imports to
EU of 4,5 EJ/year
Use money for investing in infrastructure instead
of buying fossil fuels
21
Substitution of natural gas with district heating
based on recycling of industrial surplus, cutting
7 of all CO2 emissions in the city of Varberg in
less than 5 years
Rapid implementation gives immediate effect on CO2
Source Dr Sven Werner Professor, Energy Technolog
y, Halmstad University
22
Integrated Power, Heat and Pellets production in
Skellefteå
Boiler Turbine Capacity 64 MW DH 35 MW
electricity
Pellets production Capacity 24 t/H Pellets 4,9
MW electricity
Surplus heat and surplus electricity must be
recognized as energyefficiency
Accumulator 15 000 m3
Similar integrations can be done with other
biofuel plants
23
Environmental improvements due to the Surplus
heat utilization -
Losses becomes useful heat
  • The heat is transported from Frövifors Bruk to
    Frövi, Vedevåg and Lindesberg over an 18 km long
    transmission pipeline.

24
  • I would like to focus on District heating and
    energy system efficiency.
  • Co-generation is one way, there are other
    possibilities I will present and give examples
    on.
  • I would like to show how DH can be part of a
    sustainable energy system.
  • I have some examples of large scale bioenergy
    introduction in CHP on fossil

25
What are the opportunities with District Heating
  • Connecting energy sources to energy consumers and
    hereby utilize surplus energy from
  • Electricity production
  • Heavy industry and biofuel plants
  • Energy from waste
  • Introduce large scale biomass use, solar and
    geothermal heating
  • Less dependency on imported fossil fuel - money
    used for infrastructure increases the security
    of supply

26
A few ideas to make it happen...
  • Definition of clear objectives at the policy
    level -
  • Cooperation between policy-makers and industry in
    the analysis
  • Strong participation of the industry in the
    development of technical tools and rules
  • Coherence is a key...
  • Do not fragmentize keep Energy Efficiency, RES
    and CO2 reduction on the table all the time -
    District Heating do

27
The missing links
  • Analysis of the national CHP/DHC potentials
  • Analysis of separate production (ref.values)
  • Analysis of effects of emission trading
  • Analysis of RES options, costs, effects, barriers
  • Analysis of eco-performance of heating systems
  • Analysis of the European heat and cold markets
  • (ECOHEATCOOL project)

28
District heating and coolingBest practice!
Well proven technology 50 years of
experience, works from day 1
CHP DH
The political strategy to make it happen is in
place
Very profitable for all actors no need for
subsidies
Capital is flowing in no constraint for
expansion
The need is gradually beeing transformed into a
huge market
No secret anymore!!
29
Conclusion
More info at www.euroheat.org www.ecoheatcool.org
Or erik.larsson_at_svenskfjarrvarme.se
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