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 sourcesFossil fuels (oil, gas and coal) dominateExpect more renewables in the futureUnlike that we run out of fuelsData 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 websiteSource: U.S. Energy Information AdministrationSource: U.S. Energy Information Administration
5 Unit of inquiryInquire into the strong and weak aspects of the various energy sourcesCheck 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 fuelOil is a great fuel because is contains a lot of energyIt is easy to transportIt is a fossil fuel and it non-renewableMany people are afraid that we running out oilHowever, high prices allow to use ever new technologies to assess new sourcesMany people think it will be hard to replace oil in the transport sector (i.e. cars, planes)Source: U.S. Energy Information Administrationyears1000 Mill bbl oe
7 Gas – oil’s little sister Shah Deniz Gas FieldSource: U.S. Energy Information AdministrationGas is found many placesGas-fired energy production release less CO2 than oilHowever, it can not as easily be shipped as oil. It is expensive to build pipelines or LNG-plantsGas is often used to heat homesIt 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 fuelSource (all pictures):Blast furnace in a modern steel worksCoal transported by train
9 Fossil fuels – what does it mean? Formation of coalOil, gas and coal are formed long time ago from fossilsTo gain energy from these fuels, they are burntCombustion of fossil fuels releases CO2 into the atmosphereFormation of oil & gasSource: 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 tonsData source: BP Statistical Review of World EnergyHow 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 substancesThe same way as the sun generate energyThree problems: energy, time, containment
13 Hydro – the old ladyWatermills are one of the oldest forms of energy we knowNo pollution, easy to operate and regulate with demandHowever, few places left to build such stations. Availability dependent on precipitation. Can harm fish in reservoir lakes/riversSource: U.S. Energy Information Agency
14 Renewables: solar and wind No pollution, wind and sun are available in unlimited amountsEnergy is generated only as the sun shines and the wind blows, therefore there needs to be expensive back-up capacity or storage capacitySolar 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 GermanySource: Statnett