8 Fossil Fuel Electricity Production (1)Fossil Fuels are burned (2) in order to heat water which creates steam (3) which causes a turbine to spin (4) which causes the generator to create electricity2341
9 Fossil FuelsCoal, oil and gas are called "fossil fuels" because they have been formed from the organic remains of prehistoric plants and animals.
10 Electricity Production – Fossil Fuel Power Plants
13 Nuclear FissionUranium atoms are broken down releasing atomic energyRadioactive waste problemWaste materials will be deadly for centuries
14 The reactor uses Uranium rods as fuel, and the heat is generated by nuclear fission. Neutrons smash into the nucleus of the uranium atoms, which split roughly in half and release energy in the form of heat.
15 NuclearIs the same as Fossil Fuels except that the heat generated is from a nuclear reaction. Water is heated which creates steam which spins a turbine creating electricity inside a generator.
19 Renewable Resources Solar Radiated energy from the sun Good for heatingNo efficient solar collection method has been devised yet for direct conversion to electrical energy.
20 Types of solarSolar Cells (really called "photovoltaic" or "photoelectric" cells) convert light directly into electricity.Solar water heating, where heat from the Sun is used to heat water in glass panels on your roof.
21 SolarThe energy gained from the sun is stored inside a battery which supplies the powerThe larger the battery, the more power that can be stored
22 WindKinetic (motion) energy from the wind can be transformed into mechanical energy, then electrical energy is made with turbines and generators (as seen before)Windy plains and shallow water are excellent location choices for wind turbines since flat open spaces offer little resistance to high speed winds.
26 Hydro-electric Energy (Dams) Water cycle causes evaporation and rain to fall in high geographic areas, then water flows back to sea level.The motion of water flowing down is converted to electrical energy as it flows through turbines.
27 Hydro-electric Energy A dam is built to trap water, usually in a valley where there is an existing lake.Water is allowed to flow through tunnels in the dam, to turn turbines and thus drive generators.Hydroelectric
31 Shown below is the Annapolis Royal generating station which is the only modern tidal generating station in North America. The station is located in Nova Scotia
32 CanadaCurrently, most of our energy is produced using Fossil Fuels, Nuclear energy and Hydroelectric meansUnfortunately other sources such as solar and wind do not produce enough electricity to be a viable sourceEnergy SourceNumber of Stations% of total Electricity supplyFossil Fuels626Nuclear Energy550Hydroelectric6922Other2Total100
33 Future Technology and some that have been tried already
34 GeothermalThermal energy from beneath the earth’s crust is harnessed to heat water tanks.Thermal energy can also be used for the heating of homes
35 GeothermalHot rocks underground heat water to produce steam.We drill holes down to the hot region, steam comes up and is used to drive turbines, which drive electric generators.
37 Nuclear FusionJoining Nuclei from small particles to form one large nucleus.The “grail” of energy researchers.Nuclear fusion is the process that occurs within our sun as hydrogen nuclei combine to form helium.