District cooling as a part of combined heat and power production Urban energy at its best

Transcription

1 District cooling as a part of combined heat and power production Urban energy at its best International Power Summit , Cannes, France Atte Kallio, Project Manager

2 Contents Introduction Key Figures District cooling as a part of combined heat and power production Benefits of district cooling Case Pasila - Underground district cooling station Helsingin Energia Helsingin Energia 2

3 Helsingin Energia As one of the largest energy companies in Finland. Supplies electricity to approx. 400,000 customers. Covers more than 90 percent of the heat demand of the capital city with district heat. Europes fastest growing and 3rd largest supplier of district cooling. Among the services are the design, projecting and maintenance of energy production and distribution systems. Also responsible for the outdoor lighting systems in Helsinki. Helsingin Energia Helsingin Energia 3

4 Key figures, Helen Group Helen Group Net turnover, million Profit before appropriations, million Total assets, million 1, Return on investment, % Equity ratio, % Helsingin Energia Helsingin Energia 4

5 Production capacities of power plants located in Helsinki Power plants Electric power output (riet) MW Heating output (riet) MW Vuosaari A Vuosaari B Hanasaari B Salmisaari B Kellosaari 118 Total 1,126 1,300 Heating plants Electric power output (riet) MW Heating output (riet) MW Salmisaari A 180 Heating plants 2,007 Katri Valan heatingand cooling plant Total 2, Helsingin Energia Helsingin Energia 5

6 Combined cooling, heat and power (CCHP) production Helsingin Energia generates electricity, heat and cooling in the same process. The combined generation achieves high efficiency, in other words more energy is gained from the same amount of fuel. Combined generation reduces carbon dioxide emissions. Helsingin Energia has won the EU-parliament Regional Awards -prize as the leading specialist in energy efficiency and many other recognitions. CCHP is the key for clean air in Helsinki! Helsingin Energia Helsingin Energia 6

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9 A quarter of Finland s District Heat Helsingin Energia is the largest energy company in Finland producing, distributing and selling district heat and cooling. More than 90 % of the capital's heating requirement is covered by district heat. Share of CHP is more than 90 % Overall efficiency is more than 90 % 90 / 90 / 90 philosophy Helsingin Energia Helsingin Energia 9

10 Reliable heating The distribution reliability of district heat is high and the cut-offs are rare. The heating network is designed so that district heat can be distributed via several routes. The most important transmission pipelines are located in tunnels. Helsingin Energia Helsingin Energia 10

11 District heat customers and connection power Helsingin Energia Helsingin Energia 11

12 District cooling District cooling is expanding in Helsinki. It substitutes locally produced cooling. It saves energy and conserves the environment. It is produced in an environmentally benign way. Helsingin Energia Helsingin Energia 12

13 District cooling connection power Helsingin Energia Helsingin Energia 13

14 District cooling as a part of combined heat and power production Free cooling Absorption cooling; 35 MW C Accumulator; 40 MW C Heat pumps; 15 MW C Accumulator; 32 MW C Heat pumps; 10 MW C Heat pumps; 60 MW C 500 m Helsingin Energia Helsingin Energia 14

15 Heat pumps as a part of CCHP ELECTRICITY FROM CHP POWER PLANT AS A FUEL Helsingin Energia Helsingin Energia 15

16 Heat pumps as a part of CCHP Helsingin Energia Helsingin Energia 16

17 Absorption heat pumps as a part of CCHP SOLAR THERMAL ENERGY DISTRIC HEAT FROM CHP POWER PLANT AS A FUEL Or Generator Condenser DC CUSTOMERS Evaporator Absorber Heat exchanger DC NETWORK Sea water (Alternatively river, lake or cooling tower) Helsingin Energia Helsingin Energia 17

18 Absorption heat pumps as a part of CCHP Helsingin Energia Helsingin Energia 18

19 Cold sea water as a part of CCHP DC CUSTOMERS VERY SMALL AMOUNT OF ELECTRICITY FROM CHP POWER PLANT AS A FUEL HEAT EXCHANGER Helsingin Energia Helsingin Energia 19

20 Cold sea water as a part of CCHP Helsingin Energia Helsingin Energia 20

21 Cooling and heat storages as a part of CCHP Helsingin Energia Helsingin Energia 21

22 Cooling and heat storages as a part of CCHP Helsingin Energia Helsingin Energia 22

23 Helsingin Energia Helsingin Energia 23

24 Benefits of district cooling Easiness Environmental Aspects Financial Esthetic and noise Helsingin Energia Helsingin Energia 24

25 Benefits of district cooling Customer can concentrate on its key businesses Specialized energy company will take care of the cooling production Maintenance and repair are outsourced Risks related to own, building specific, production will be removed Space is freed to productive use Predictable, less fluctuating lifecycle costs Customer Cooling capacity can be increased as the demand appears Helsingin Energia Helsingin Energia 25

26 Benefits of district cooling Clever integrated solutions lead to better overall efficiency Multi-generation: electricity, heat and cooling are produced simultaneously as eco-efficiently as possible Savings in greenhouse gases and other emissions Centralized production with optimized and well maintained production units result in higher efficiencies Up to 90 % fuel conversion efficiency Helsingin Energia Helsingin Energia 26

27 Benefits of district cooling Primary energy of DC in Helsinki is unused fuel! The primary energy factor of production shows how many units of fuel are needed to produce one unit of energy. A lower production factor means better efficiency ratio and lower fuel consumption. Helsingin Energia Helsingin Energia 27

28 Benefits of district cooling Helsingin Energia Helsingin Energia 28

29 Case Pasila - Underground district cooling station Capacities: Accumulator: 32 MW cooling Heat Pumps : 10 MW cooling Surplus heat will be recovered in to a district heating network Accumulator Storage: m 3 DC Pumps: m 3 /h Helsingin Energia Helsingin Energia 29

30 Helsingin Energia Helsingin Energia 30

31 Helsingin Energia Helsingin Energia 31

32 Helsingin Energia Helsingin Energia 32

33 Helsingin Energia Helsingin Energia 33

34 Helsingin Energia Helsingin Energia 34

35 Helsingin Energia Helsingin Energia 35

36 Thank you! Helsingin Energia Helsingin Energia 36

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