Wind Power in the UK (OCR GCSE Geography B (Geography for Enquiring Minds)): Revision Notes

Wind Power in the UK

Wind as a growing energy source

The United Kingdom has experienced significant growth in wind energy generation over recent years. Wind power is becoming an increasingly important part of the UK's energy mix as the country works towards its environmental targets.

Growth in wind energy generation

Wind power capacity in the UK has expanded dramatically between 2008 and 2015. Both the total amount of electricity generated from wind and its proportion of the national energy supply have increased substantially.

This data demonstrates that wind energy generation increased nearly fivefold over this seven-year period, rising from under 3,000 MW to over 13,000 MW. The percentage contribution to total UK electricity also grew from just 1.5% to 10.4%, showing wind power's expanding role in the national energy system.

Onshore versus offshore wind farms

The UK utilizes two main types of wind farm installations, each with different characteristics and locations.

Onshore wind farms

Currently, the majority of UK wind farms are located onshore (on land). These installations are distributed across many regions of the country, particularly in areas with consistent wind conditions such as Scotland, Wales, and parts of England.

Offshore wind farms

A growing number of wind farms are now being constructed offshore (at sea). The UK is particularly well-suited for offshore wind development because it has:

• An extensive coastline providing numerous potential sites
• Large areas of shallow seas surrounding the country
• Strong and consistent wind resources over coastal waters

Advantages of wind power

Wind energy offers several important benefits as an electricity generation method.

General advantages

Wind power is a renewable energy source, meaning it will not run out and can be used indefinitely without depleting natural resources. Unlike fossil fuels, wind energy is constantly replenished by natural atmospheric processes.

The cost of generating electricity from wind is relatively low compared to many other energy sources. Once wind turbines are installed, the fuel (wind) is free, making operational costs modest.

Advantages specific to onshore wind

Land surrounding each turbine can continue to be used for other purposes, particularly farming. This dual land use means that wind farms do not necessarily remove land from agricultural production – sheep can graze and crops can be grown around turbine bases.

Advantages specific to offshore wind

Offshore wind farms do not occupy any land area at all, avoiding competition for space with other land uses such as housing, agriculture, or industry. This is particularly valuable in a densely populated country like the UK.

Disadvantages of wind power

Despite its benefits, wind energy also presents several challenges and drawbacks.

General disadvantages

Some people argue that wind turbines create visual pollution and spoil the natural landscape, particularly in scenic rural or coastal areas.

The rotating blades of wind turbines can pose a hazard to birds and bats. Collisions with turbine blades can cause injury or death to flying wildlife.

Disadvantages specific to onshore wind

Wind turbines generate noise from both the mechanical components and the movement of blades through the air. This can be disruptive to people living nearby.

There are only a limited number of sites in the UK that have suitable wind conditions – specifically, high and steady wind speeds throughout the year. This geographical constraint limits where onshore wind farms can be effectively located.

Disadvantages specific to offshore wind

Constructing wind turbines on the seabed is significantly more difficult and expensive than building them on land. The marine environment presents engineering challenges including harsh weather conditions, saltwater corrosion, and the need for specialized vessels and equipment.