1) Göteborg Energi is a municipal energy provider serving approximately 300,000 customers in Göteborg, Sweden. It aims to actively contribute to the development of a sustainable society through initiatives like increasing renewable energy and reducing emissions. 2) The document discusses the urgent need to reduce greenhouse gas emissions and switch to renewable energy sources to limit global temperature increase due to climate change. It cites scientific projections of the consequences of different levels of atmospheric CO2 concentrations. 3) Göteborg Energi has invested in multiple biogas projects, including an upgraded biogas facility, a pilot gasification project, and plans for a commercial-scale gasification plant called GoBiGas. The goal is to develop sustainable fuel

1. Our vision... ...a sustainable city of Göteborg

3. Our corporate vision Göteborg Energi shall actively contribute to the development of a sustainable society in Göteborg

4. The pressing need for change. Taken from ”Six degrees” by Mark Lynas 800 ppm Allow increased emissions 5,1 – 5,8 ºC End of almost all life on the planet 650 ppm No peak in emissions 4,1 – 5,0 ºC Risk for emissions of methane hydrate from the sea 550 ppm Global emissions peak 2050 3,1 – 4,0 ºC Risk for feedback from Siberian methane 450 ppm Global emissions peak 2030 2,1 – 3,0 ºC Risk for carbon cycle feedback 400 ppm Global emissions peak 2015 1,1 – 2,0 ºC 350 ppm (today’s level is 380 ppm) Probably not possible to aviod 0,1 – 1,0 ºC CO 2 target Change needed Degrees change

5. http://ies.jrc.ec.europa.eu/WTW.html

6. How much waste is there? 50 TWh 40 TWh 10 TWh 60 TWh

7. http://www.sgc.se/nordicbiogas/resources/Pal_Borjesson.pdf

8. http://ies.jrc.ec.europa.eu/WTW.html

9. Existing infrastructure

10. http://www.cngprices.com/

11. From gasworks to a leading energy company 2005 Talk of separate carbon dioxide accounts in the UK. 1997 The Kyoto Protocol, which aims to reduce greenhouse gases. 1985 The first reports of holes in the ozone layer. 1981 Nuclear power referendum and lively energy debate. 1972 UN’s first major environmental conference held in Stockholm. The first major oil crisis hits the Western world. 1963 The first nuclear power plant in Sweden is commissioned at Ågesta outside Stockholm. 1960 The 1960s. Rachel Carson’s book “Silent Spring”. 1880 Urbanisation and industrialisation take off in Sweden. 1878 Thomas Edison invents the light bulb. Gustaf de Laval patents a steam turbine a few years later. 2005 Rya Combined Heat & Power Plant built. Commissioned 2006. 2003 Biofuel adopted at Rya and Sävenäs. 1988 Natural gas introduced for the first time in Göteborg. 1982 The heating supply plan using waste heat is adopted. 1980 Waste heat deliveries commence from Shell. 1972 Heat deliveries from GRAAB’s refuse disposal plant. 1952 The first combined heat and power plant for electricity and district heating production is built. 1908 Distribution of electricity in Göteborg under municipal control. 1888 The municipality acquires The Gothenburg Gas Company. Göteborg Stads Gasverk is created. 1846 Sweden’s first gasworks opens in Göteborg.

12. Rya Combined Heat & Power Plant – the energy plant of the future 92.5%

13. Gas use in Göteborg has increased…

14. As well as the use of gas vehicles in Göteborg…

15. Our vision for Biogas Capacity Town Gas Natural Gas Biogas Time Today!

16. Our vision for Biogas 1 TWh 2006 2020 2012 2008 2010 Biogas 2014 2016 2018

20. The BiG project Biogas in Göteborg

26. GoBiGas

27. Vision for the future – GoBiGas