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Our energy sources Fossil Non-renewable Renewable

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Presentation on theme: "Our energy sources Fossil Non-renewable Renewable"— Presentation transcript:

1 Our energy sources Fossil Non-renewable Renewable
Source: U.S. Energy Information Administration %-numbers show the energy sources’ share in U.S. energy consumption in 2012

2 Energy facts and trends
Global energy supply by source Mill ton o.e. We have a variety of energy sources Fossil fuels (oil, gas and coal) dominate Expect more renewables in the future Unlike that we run out of fuels Data source: BP Statistical Review of World Energy

3 How is power generated in Azerbaijan?
Azerenerij: Azerbaijan IES

4 Azerbaijan is an oil and gas exporter
Source: BP website Source: U.S. Energy Information Administration Source: U.S. Energy Information Administration

5 Unit of inquiry Inquire into the strong and weak aspects of the various energy sources Check list: Is the energy source rare or difficult to extract? Are there long transport distances or a need to install a dedicated infrastructure? Is it a domestic resource? Does its extraction or use pollute the environment? Is its waste toxic? Is it a renewable resource? Is it constantly available or only at times? Other aspects you might think of

6 Oil – our major fuel Oil is a great fuel because is contains a lot of energy It is easy to transport It is a fossil fuel and it non-renewable Many people are afraid that we running out oil However, high prices allow to use ever new technologies to assess new sources Many people think it will be hard to replace oil in the transport sector (i.e. cars, planes) Source: U.S. Energy Information Administration years 1000 Mill bbl oe

7 Gas – oil’s little sister
Shah Deniz Gas Field Source: U.S. Energy Information Administration Gas is found many places Gas-fired energy production release less CO2 than oil However, it can not as easily be shipped as oil. It is expensive to build pipelines or LNG-plants Gas is often used to heat homes It is a fossil fuel and it non-renewable. However, today there machines turner today's organic material (plants, animal wastes, etc.) into natural gas. 

8 Coal – oil’s older auntie
Coal is found many places, i.e. it is for many countries a domestic resource. It is easy to ship by train or sea-borne. High oil prices make coal a very attractive fuel. Coal is widely used for electricity generation (In the U.S., 39% of power is generated by coal). Older coal-fired power stations are often heavy polluters. The mining of coal has an adverse environmental impact. Fossil, non-renewable fuel Source (all pictures): Blast furnace in a modern steel works Coal transported by train

9 Fossil fuels – what does it mean?
Formation of coal Oil, gas and coal are formed long time ago from fossils To gain energy from these fuels, they are burnt Combustion of fossil fuels releases CO2 into the atmosphere Formation of oil & gas Source: U.S. Energy Information Administration

10 Global Carbon dioxide [CO2] emissions are rising
Rising energy demand has been met by using over-more fossil fuels. Correspondingly, CO2 -emissions have risen sharply. This is believe to drive global warming. Global CO 2 emissions Mill tons Data source: BP Statistical Review of World Energy How can we stop CO2-levels to rise?

11 Nuclear: The young wild – born in the search for abundant energy
Non-fossil fuel (no CO2 emissions). Non-renewable, but there is no concern for shortage of uranium. It is perceived as a cheap source of energy. You need cooling water and there should not be earth-quakes. Accounts for 4-5% of energy supply. In case of an accident the adverse consequences are huge. There is no good solution for what to do with the waste. Source: U.S. Nuclear Regulatory Commission

12 Nuclear: The dream continued and improved
Fusion: involves no harmful substances The same way as the sun generate energy Three problems: energy, time, containment

13 Hydro – the old lady Watermills are one of the oldest forms of energy we know No pollution, easy to operate and regulate with demand However, few places left to build such stations. Availability dependent on precipitation. Can harm fish in reservoir lakes/rivers Source: U.S. Energy Information Agency

14 Renewables: solar and wind
No pollution, wind and sun are available in unlimited amounts Energy is generated only as the sun shines and the wind blows, therefore there needs to be expensive back-up capacity or storage capacity Solar panels are energy-intensive in their production and wind-mills, especially offshore, are hard to maintain

15 Renewables: How they can play together
Example: HVDC cable between Norway and Germany Source: Statnett

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