Generating Electricity 8 3.2 The advantages and disadvantages of using renewable energy technologies for generating electricity on a national scale using secondary information 3.2 b The advantages and disadvantages of using non-renewable energy technologies for generating electricity 3.2 h Efficiency, reliability, carbon footprint and output to compare different types of power station in the UK including those fuelled by fossil fuel and renewable sources of energy

Starter – Gas power station How many joules in a MJ? How much energy is wasted in total? How much energy is supplied to the national grid? How efficient is this power station? What are the advantages of using gas rather than using coal as a fuel? What are the advantages of using coal rather than gas? Coal power 20 MJ lost as heat energy driving the turbines 16MJ lost as heat energy in the moving parts in the power station 120 MJ input from burning gas Electrical energy to the national grid Gas power 50 MJ lost as heat energ in the water used for cooling

Why do we use a range of resources to provide electricity for our homes?

Aberthaw power station will need replacing in 2020 Aberthaw B can generate up to 1560 MW. So the new system will need to generate the same power. It will need to reduce its carbon footprint from 22.5 million tonnes a year It will need to lower its impact. It is by the sea. Would you recommend any of your sources as part of the solution?

Plenary Look back at your concept map and add in new links using a different coloured pen.