Generating Electricity
- Created by: Samuel1746
- Created on: 10-04-15 11:54
View mindmap
- Generating Electricity
- Fuel For Electricity
- Almost all electricity is generated from coal, gas or oil-fired power stations
- Biofuels are a renewable source of fuel that are also carbon neutral
- Nulear power uses nuclear fission and harnesses power from it to supply to the national grid
- Energy From Wind and Water
- Wind power is from wind turbines that generate electricity from the force of the wind
- Wave power harnesses the kinetic energy from waves to power dynamos and other devices
- Hydroelectric power is similar to wave power but uses flowing rain water collected in reservoirs to do the same job
- Tidal power traps a high tide and lets it through its turbines to power the station
- Power From The Sun and the Earth
- Solar panels harness photons from the sun
- They are very inefficient only converting under 10% of light into energy
- Large amounts are used to harness a decent amount of energy
- Geothermal energy utilizes the molten rocks underground to heat water into steam to power turbines
- Energy and the Environment
- Fossil Fuel Problems
- Burning fossil fuels releases a lot of carbon dioxide and other greenhouse gasses
- Burning them also produces sulfur dioxide which causes acid rain
- They are non-renewable
- Nuclear Problems
- Explosions will effect areas for years
- Waste has to be stored for years for it to be safe
- Fossil Fuel Problems
- The National Grid
- There are two types of transformer used on the national grid
- Step-Up transformers are used to step the voltage up to grid voltage of around 132,000 volts or more
- Step-Down transformers are used at local substations to lower the voltage so that houses can accept the power, around 230 volts
- The voltage is raised so that less power is lost when the electricity is transported long distances
- There are two types of transformer used on the national grid
- Fuel For Electricity
Comments
No comments have yet been made