Energy sources can be divided into two types
Energy sources can be divided into two types: l renewable (e. g. wind, solar); l non-renewable (e. g. coal, oil, nuclear and natural gas).
What is a renewable energy resource? Ü Renewable energy is natural energy which does not have a limited supply. Ü Renewable energy can be used again and again, and will never run out. Types: Ü Biomass Ü Tidal Ü Hydro-electric Ü Wave Ü Geothermal Ü Wind Ü Solar Ü Wood
What is a non-renewable energy resource? Ü An energy resource that is not replaced or is replaced only very slowly by natural processes Ü Fossil fuels are continually produced by the decay of plant and animal matter, but the rate of their production is extremely slow, very much slower than the rate at which we use them. Types: Ü Coal Ü Oil Ü Nuclear Ü Natural Gas Ü Tar Sands and Oil Shale
Fossil fuels What is a fuel? A fuel is a store of energy. What is a fossil fuel? A fossil fuel is a fuel formed from the remains of animals and plants over millions of years and is NONRENEWABLE. Name three fossil fuels: 1. ______ Coal 2. ______ Oil 3. Natural ______ gas
Non-renewable energy sources Advantages Disadvantages Pollution – CO 2 leads to global warming and SO 2 leads to acid rain Cheap fuel costs High yield of energy per unit. Easy to get hold of. Coal, oil, gas Fuel will run out Costs a lot of money to swap from current power plants to plants of alternative fuel types
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