P3 - Energy resources.

P3 - Energy recources 

• Most energy - burning fossil fuels, coal oil or gas. 

• Nuclear power, biofules and renewable sources also genertate some energy. 

• Uranium or platinum - fuel in nuclear power station. More energy is released than burning fossil fuels

• Biofules - renewable energy source 

• Wind turbine - electricity generator. Turbine blades turned by wind. 

• Wave genorator - motion of waves to make turbine move up and down. 

• Hydroletric turbine - generators turned by water running downhill. 

• tidal power stations - traps water from high tide and uses it to turn turbines. 

• Solar cells - flat solid cells that use suns energy to generate electricity. 

• Solar heating panels - suns energy to heat water 

• Geothermal energy - energy from radioactive substances in earth. 

• Geothermal power station - water pumped onto hot rocks underground to prosuce steam, driving turbines at earth surface. 

• Fossil fuels - greenhouse gases when burnt - global warming. 

• Used nuclear fuels - radioactive waste 

• Renewable energy sources -never run out, dont produce harmful waste products and can be used in remote places. Not always reliable can damage habitatas as they take up a large area

• Can be evaluated in terms of reliability, environmental effecects and waste. 

• Gas power stations - can meet variations in electricity demand. 

• Nuclear power stations - expensive.