1 Renewable energy. 2 Renewable energy sources Sun Wind Hydro Wave Tidal Osmosis Geo thermal Biofuel.

Presentasjon om: "1 Renewable energy. 2 Renewable energy sources Sun Wind Hydro Wave Tidal Osmosis Geo thermal Biofuel."— Utskrift av presentasjonen:

1 1 Renewable energy

2 2 Renewable energy sources Sun Wind Hydro Wave Tidal Osmosis Geo thermal Biofuel

3 3 World Marketed Energy Consumption

4 4 ENERGY PRODUCTION IN THE WORLD 1860 - 1997 Energy [mill. Tons oil eq. per year] HydroNuclear Natural gas OilCoal Bio mass 1860188019001920194019601980 2000 4000 6000 8000

5 5 Predicted Power Generation from Other Renewables World - Reference and Alternative Policy Scenario TWh Source: IEA 2006

6 6 EU - Predicted Power Generation Reference and Alternative Policy Scenario Source: IEA 2006 TWh O. Ren. = Other Renewables Reference Scenario 2030 Alternative Policy Scenario 2030 2004 Sum: Ref. 4304 TWh Alt. 3681 TWh Sum: 2004: 3155 TWh

7 7 EU - Predicted Power Generation from Other Renewables Reference and Alternative Policy Scenario TWh Source: IEA 2006

8 8 Source: http://marine.rutgers.edu/mrs/education/class/yuri/erb.html Annual incoming solar energy: 5438510 20 J

9 9 Sun energy potential Source: www.worldenergy.org

10 10 Wind power and energy Power output from wind turbines: Energy production from wind turbines: C A

11 11 The world’s energy potential for land based wind turbines Estimated energy output in kWh/kW from a wind turbine that are dimensioned for 11 m/s

12 12 Global Installed wind power

13 13 Source: www.gwec.net Installed wind power

14 14 Wind power capacity global forecast

15 15 Hydro power

16 16 Total electricity production in the world Total electricity production: 18 184 TWh/year (2005) –Hydro : 19 % –Nuclear : 16 % –Coal:40 % –Natural Gas: 15 % –Oil:10 % Norway: –99% energy production from hydro power with an installed power of 28 000 MW source: www.bp.com/statisticalreview

17 17 Hydro power in the world Energy production : 2 650 TWh/year Installed capacity:715 000 MW Total potential: 40 000 TWh/year Technical potential: 14 400 TWh/year Economical and technical potential : 8 900 TWh/year Hydro power potential in the world source: http://en.wikipedia.org, www.worldenergy.orghttp://en.wikipedia.org

18 18 Wave power potential The numbers denotes power per meter wave front [kW/m] 70 30 40 30 60 40 50 40 20 60 50 22 40 15 20 24 40 50 74 30 50 100 92 82 19 12 21 23 12 18 17 34 66 34 14 8 8 27 84 37 9 10 20 48 81 30 11 100 67 13 11 3 41 72 50 49 89 26 17 15 17 25 24 33 29 97 72 42 16 11 13 12 102 68 53 13 10 14 12 18 19 10 24 43 20 43 41 33

19 19 Power potential from waves a Group Velocity c g [kW/m]

20 20 EC105 TWh –UK50 TWh –France40 TWh World ? Energy potential in the tidal currents

21 21 EC tidal current sites

22 22 Source: www.bwea.com/marine/resource.html

23 23 Source: www.worldenergy.org/wec-geis/publications/reports/ser/tide/tide.asp Energy potential in the tidal currents

24 24 Prinsippet ved saltkraftverk kalles trykkretardert osmose (TRO) og går ut på å utnytte energien som frigjøres når salt og ferskvann blandes. Dette skjer ved at de tilføres i hvert sitt kammer i et kar adskilt av en membran (se fig). Membranen tillater gjennomstrømning av ferskvann, men ikke saltvann. Det ferske vannet vil da strømme gjennom til den andre siden, og energien i denne strømmen kan tappes ved hjelp av en turbin. Det er det osmotiske trykket mellom ferskvann og saltvann som sørger for at det opprettholdes en strømning gjennom membranen. Det osmotiske trykket er maksimalt 27 bar. Saltkraft Norges energi potensial er 50 TWh Kilde: www.sintef.no

25 25 Geothermal energy The estimated amount of total heat flowing from the Earth's interior is equivalent to 42 terawatts

26 26 Geothermal energy in the world Energy –38 TWh electricity production –34 TWh heat production Installed power: –8.912 MW for electricity production –16.000 MW for heat production Source: Renewable energy (Renew. energy) ISSN 0960-1481 http://iga.igg.cnr.it/geo/

27 27 Bio Fuel

28 28Gas-turbine Steam-turbine Motor Generator Barbeque Metalurgical industry MotorBoilerWoodstove District heating Electricity Fuel CharcoalBio-oil Combustible gas Heat Thermochemical Conversion Technolgies PyrolysisGasificationCombustion

29 29 Bio Fuel in Norway Theoretical energy potential in Norway:415 TWh Technical energy potential in Norway:35 TWh Energy production from bio fuel in Norway today: –7,5 TWh in private homes –7,5 TWh in the industry