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Energy security in the UK - OCRStrategies to increase energy supply

If the UK is to ensure its energy security, it needs to sustainably manage available energy resources. There are strategies that can be put into place to achieve this.

Part of GeographyResource reliance

Strategies to increase energy supply

As the global population continues to increase and existing fuel supplies begin to run out, countries will have to find ways to increase energy supplies.

Renewable energy

technologies offer a way to increase energy supplies, however they are often more expensive or less at producing energy than . Therefore they may require government subsidies.

Biomass

is recently-formed material derived from living things, eg chicken droppings. burn biomass and non-recyclable rubbish to generate electricity. The UK has many 'energy from waste' plants, eg Allington Quarry in Maidstone, Kent.

Hydroelectric power (HEP)

is generated when river water is trapped behind a and used to turn . The UK generates around 2% of its electricity this way. Most suitable locations for dam building have already been used.

Wave power and tidal power

The UK is an island nation, yet it generates very little energy using the sea. Wave energy harnesses the power of small movements on the surface of the sea. The technology is new and currently expensive. Tidal energy harnesses larger movements of the tides. There are plans for tidal to be built in the UK, and permission has been granted to begin a 拢1.7 billion tidal lagoon project in Swansea Bay.

Geothermal

power uses heat within the Earth to generate electricity. This is easier in other countries where geothermal heat is more accessible, eg Iceland. However, drilling has begun on a geothermal power plant at the Eden Project in Cornwall which will take energy from heat in underground granite rocks. are a similar idea, but they use the heat from the Sun that is stored within the surface of the Earth.

Solar power

The UK government wants to triple the use of by 2030. can be fitted onto buildings or within fields. They turn sunlight into electricity. New technology means solar panels are able to generate electricity on cloudy days, which would be good for the UK.

Wind power

is when wind turbines convert air movements into electricity. In the UK wind speeds are consistent and so this is a good way to generate electricity. The UK generates more wind energy using turbines on the land (onshore). As an island nation, the UK could build more turbines in the sea (offshore) though these are more expensive.

Wind turbines
Image caption,
Wind turbines - a renewable source of energy

Non-renewable energy

Global energy use is still dominated by energy. The use of non-renewable energy can be made more . This could increase energy supplies as less fuel would be used.

Fossil fuels

Coal and gas power stations can now re-use wasted heat in. These are called combined-cycle systems. Re-using heat makes the most out of the fossil fuels. Also, some power stations now burn small amounts of alongside fossil fuels. This is called co-firing and it makes the fossil fuel last longer.

Bulldozer moving heaps of coal
Image caption,
Bulldozer moving heaps of coal

Fracking

could exploit shale gas and oil, which would increase supplies of fossil fuels. In 2019, the UK government ended its support for fracking in England. The locations that were identified as suitable for fracking included parts of Yorkshire, Lancashire, Lincolnshire, Leicestershire, Nottinghamshire and Derbyshire, which are believed to be some of the most productive areas for shale gas.

Some of the UK locations are within the boundaries of National Parks or Environmentally Sensitive Areas, and the proposals have created some land use conflicts.

Nuclear power

still have some uranium left within them after they have been used. Reprocessing recovers the uranium from fuel rods so that it can be reused. This doesn't create new supplies of uranium, but it does use the existing supplies more efficiently. This means that uranium supplies will last longer.