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District heating and the environment

District heating and the environment. 1985. TODAY. In 1952, we started out our mission towards an energy system with high efficiency and low environmental impact. In total, our district heating system supplies more than 60% of the heating demand in Göteborg.

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District heating and the environment

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  1. District heating and the environment

  2. 1985

  3. TODAY

  4. In 1952, we started out our mission towards an energy system with high efficiency and low environmental impact • In total, our district heating system supplies more than 60% of the heating demand • in Göteborg

  5. Heat load of principle for the district heating net in Gothenburg

  6. District Heating - environmental advantages in three dimensions • Local: Improved urban air quality (Particles, SO2, NOx,) • Regional: Reduced acidification (SO2, NOx), • Global: Reduced emissons of greenhouse gases (CO2) Reduced consumption of resources

  7. Linked environmental impact - Climate change and resource efficiency … Our main focus is to reduce environmental impact by using selected sources of energy and increasing efficiency in production, distribution and use Climate c change Resource efficiency

  8. Increased district heat production with reduced emissions

  9. How much energy do we use ? Use Transformation Transports Purification Extraction Primary energy

  10. Rya Combined Heat & Power Plant – the energy plant of the future

  11. Rya Combined Heat & Power Plant • Fired by natural gas, and with diesel as reserve fuel • Future transfer to gasified biofuel possible • Construction began in 2004. The plant was taken over in december 2006 • Investment amounts to SEK 2 billion • Ensures the supply of electricity for important social functions in Göteborg • 35 % of Göteborg’s heat requirements are met using district heating from the Rya Combined Heat & Power Plant • 30 % of Göteborg’s electricity requirements are met using electricity produced by the Rya Combined Heat & Power Plant

  12. Technical data for the plant • Maximum fuel input 600 MW • Electric output 261 MW • Heat output 292 MW • Total efficiency 92,5 % • Operating time 4000 h • Electricity prod. 1250 GWh • Heat prod. 1450 GWh • NOx 10 mg/MJbr • Ammonia slip 5 ppm • Black start & ”Island mode operation”

  13. Green products • District Heating, Good Environmental Choice • Approved by Naturskyddsföreningen

  14. A sustainable Göteborg Society

  15. Our vision - a sustainable Göteborg is to be reached by : • Use of renewable energy sources • Efficiency in production, distribution and use of energy • Research & development

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