CHP and DHC in Helsinki

Transcription

1 CHP and DHC in Helsinki Veikko Hokkanen Helsinki Population people Heat market ca GWh Growing cooling demand despite of relatively cold climate Thermal energy demand greater than electricity demand 2 1

2 Helsingin Energia s smart CHP/DH system Helsingin Energia s district heating system covers more than 90% of the heating need of the buildings in Helsinki. The connection capacity of the network is 3,244 MW and there are 14,010 customer connections (2010). Helsingin Energia has extensively operated its energy-efficient smart CHP/DH system in Helsinki since The operations have been improved in terms of their climate impact and efficiency throughout the years. Net turnover 716 million euro 2

3 CHP and DHC in Helsinki The decisions of CHP and DH were made in 1953 by City Council Basic reasons for the DH were; Economical Ecological Supply reliability Energy political CHP have been the basic production solution from the beginning District Cooling supply started in 1998 From the beginning DHC have been economically success Reliable DHC The distribution reliability of DHC is very high and the cut-offs are rare The networks is designed so that DHC can be distributed via several routes DHC production is typically based on multiple heating and cooling plants DHC is available throughout the year Flexible use of fuels and different production sites 3

4 Outsourced energy solutions Customers are willing to outsource heating and cooling production to energy company (compare to electricity or any other activity) Harms and risks of own production are avoided DHC are reliable and cost efficient solutions for whole life-cycle DHC customers can concentrate on their key businesses 4

5 DH Customers Customers are buildings or building groups, never separate appartments Real estate ownership is concentrated in the hands of major real estate owners Voluntary connections to DHC No obligations for energy companys to connect every building No specific DHC legislation in Finland 5

6 Creating real estate value with DH 1. Supply reliability 2. Environmental friendliness 3. Energy company is reliable partner 4. Prices are stable 5. Energy company is technical expert 6. Continuous development of DHC systems 7. DHC have a good reputation 8. Cooperation with the customers 9. Energy company is customer orientated 10. Active communication with the customers 11. Rapid response to the customers needs 12. Low price level 90 / 90 / 90 philosophy in District Heating 1) Market share is more than 90 % 2) Share of CHP more than 90 % 3) Overall efficiency is more than 90 % 6

7 Combined Heat and Power Helsingin Energia generates electricity and heat 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. District heating has improved the air quality in Helsinki. 7

8 Production capacities Production capacities of power plants located in Helsinki Power plants Vuosaari A, CHP Vuosaari B, CHP Salmisaari B, CHP Hanasaari B, CHP Kellosaari Electric power output (net) MW Heating output(net) MW Total Heating plants Salmisaari A Heating plants Katri Vala heating and cooling plant Total Production 8

9 Power Plants Vuosaari A Commissioned: 1991 Electric power output: 160 MW Heating output: 160 MW Efficiency: 91 % Fuel: Natural gas Vuosaari B Commissioned: 1998 Electric power output: 470 MW Heating output: 420 MW Efficiency: 92 % Fuel: Natural gas Power Plants Hanasaari B Commissioned: 1974,1977 Electric power output: 228 MW Heating output: 420 MW Efficiency: 85 % Fuel: Coal 9

10 Power Plants Salmisaari A Commissioned: 1953 (1986) Electric power output: - Heating output: 180 MW Efficiency: 92 % Fuel: Coal Salmisaari B Commissioned: 1984 Electric power output:160 MW Heating output: 300 MW Efficiency: 88 % Fuel: Coal The amount of fuel saved by using CHP Fuel energy, GWh Fuel saved by using CHP Used natural gas and black hard coal Due to CHP and district heat, Helsinki saves the same amount of energy that would be consumed in the heating of 270,000 single-family houses each year. 10

11 Helsingin Energia s sulphur dioxide emissions, tso 2 /a Helsingin Energia s nitrogen oxides emissions, tno 2 /a 11

12 Helsingin Energia s particle emissions, dust t/a Specific energy consumption of district heated buildings in Helsinki 12

13 The Katri Vala heating and cooling plant The Katri Vala heating and cooling plant was commissioned at the end of the year It is an environmentally benign solution developed by Helsingin Energia. The plant's "fuels" in production of district heating and district cooling are sea water, the heat of the purified sewage water and the energy of returning heating water. The plant is the largest in the world to use heat pumps to produce district heating and district cooling form both purified sewage water and sea water. Its output is 90 MW of district heating and 60 MW of district cooling. This is enough to heat a small town. The plant is located in a space excavated underneath the Katri Vala park in the district of Sörnäinen. 13

14 Helsingin Conventional Energia solution New solution 14

15 Primary Resource Factor (PRF) District Heating Heat Pump Gas or Oil Boiler Electricity 0 0,5 1,0 1,5 2,0 2,5 District Cooling Building specific cooling (chillers + cooling towers) PRF 0 0,5 1,0 1,5 2,0 2,5 PRF 0 Quality and awards The National Voluntary Energy Efficiency Agreement stipulates the technical requirements and service contents The European Parliament Regional Award The United Nations Environment Award The Fair District Heat quality label stipulates the ethical requirements of high quality energy service National Quality Award 15

16 District cooling in Helsinki 300 MW 280 MW 230 MW MW Rapid growth is based on customers own willingness to connect in free market MW 39 MW 90 MW Current market share 30 % and target 90 % 0 District cooling production Sea water Heat Pump More than 80 % of production is based on energy that otherwise would be wasted (future target 100 %). Surplus heat (Absorption) Large primary energy and CO 2 savings compared to alternative cooling solutions. 32Helsingin Energia 16

17 Thank you 17