1Renewable energy resource definition
An energy resource that is replenished faster than it is being used up, so will not run out
2Non-renewable energy resource definition
An energy resource that is replenished slower than it is being used up, so will eventually run out
3Examples of renawable resources
Solar energy
Wind
Bio-fuel
Hydroelectricity
Geothermal
Tidal
4Examples of non-renewable resources
Coal
Oil
Natural Gas
Nuclear Fuel
5Examples of fossil fuels
Coal, oil, natural gas
6What is the purpose of a turbine?
A turbine turns a generator which generates electricity
7How is a turbine turned in a dam
Water in reservoir (high up) flows down dam and turns the turbine
8Energy transfers for a dam
Energy in the gravitational store of water in reservoir
Is transferred to the kinetic store of water as it flows down
As water hits turbine, energy is transferred to the kinetic store of turbine
(Which transfers energy to the kinetic store of the generator)
9How is a turbine turned using burning fossil fuels
Fossil fuel is combusted to heat water
Which produces steam
The steam turns the turbine
10Energy transfers for burning fossil fuels to generate electricity
Energy from the chemical store of fuel
Is transferred to the thermal store of water
Which is then transferred to the kinetic store of the turbine
(Which transfers energy to the kinetic store of the generator)
11Energy transfers for using nuclear fuel to generate electricity
Energy from the nuclear store of fuel
Is transferred to the thermal store of water
Which is then transferred to the kinetic store of the turbine
(Which transfers energy to the kinetic store of the generator)
12Energy transfers for using geothermal energy
Energy from the thermal store of the water
Is transferred to the kinetic store of the turbine
(Which transfers energy to the kinetic store of the generator)
13Energy transfers for wind turbines
Energy is transferred from the kinetic store of the moving wind
To the kinetic store of the turbine
Which transfers energy to the kinetic store of the generator.
14How is energy transferred from a generator to the National Grid?
The energy from the kinetic store of the generator is transferred electrically to the National Grid
15Advantage and disadvantage of fossil fuels
Advantage - Reliable and can produce large amounts of energy
Disadvantage - Release greenhouse gases and pollution
16Advantage and disadvantage of nuclear fuel
Advantage - Does not produce greenhouse gases or pollution
Disadvantage - Produces radioactive waste which takes a long time to decay.
17Advantage and disadvantage of bio-fuels
Advantage - CO2 produced while burning is balanced by the CO2 absorbed when its produced
Disadvantage - Can take up a lot of land and resources to produce
18Advantage and disadvantage of wind energy
Advantage - No greenhouse gases or pollution produced
Disadvantage - Not reliable and not suitable everywhere
19Advantage and disadvantage of hydroelectric energy
Advantage - Reliable and no greenhouse gases or pollution produced
Disadvantage - Dams require flooding of large areas, destroying wildlife habitats
20Advantage and disadvantage of tidal energy
Advantage - Tides are very predictable
Disadvantage - Very few suitable locations and can cause harm to sea life
21Advantage and disadvantage of geothermal energy
Advantage - Reliable and stations usually small
Disadvantage - Harmful gases could be released from underground.
22Advantage and disadvantage of solar energy
Advantage - Produces no greenhouse gases or pollution
Disadvantage - Not reliable, only works when sunny
23Three main uses of energy resources
Transport - fuel for vehicles
Heating - warming homes
Electricity generation
24What are most vehicles powered by?
Petrol/Diesel which come from fossil fuels
25Advantage and disadvantage for growing number of vehicles being powered by electricity
Advantage - Zero carbon emissions while it is being driven
Disadvantage - Charged through National Grid (uses combination of renewables and non-renewables)