P1.4.1 Generating Electricity

Question 1

Renewable energy sources:

Renewable energy sources like wind, waves and solar energy will not run out.

Wind power- lots of little wind turbines
Solar cells-expensive but no environmental damage

Answer 1

Hydroelectric power uses falling water

Pumped storage gives extra supply just when it needed

Wave power- lots of little wave-powered turbines

Tidal barrages- using the sun and moons gravity

Geothermal energy- heat from underground

Biofuels are made from the plants and waste

Question 2

Energy sources and the environment:

Non renewable are also linked to the environmental problems

Biofuels have their disadvantages too

Carbon capture can reduce the impact of Co2

Answer 2

Comparison of energy resources:

Setting up a power station - 
Costs 
Reliability 
Environmental issues 
Decommissioning time 
Running/ fuel costs 
Location issues

Question 3

Energy sources and power stations:

Non-renewable energy resources will run out one day

The non renewables are the three fossil fuels and nuclear: 
Coal 
Oil 
Natural gas 
Nuclear fuels

Answer 3

Renewable energy resources will never run out.

The renewables are: 
Wind 
Waves 
Tides 
Hydroelectric 
Solar 
Geothermal 
Food 
Biofuels