Wind power in Scotland
Whitelee Wind Farm near Eaglesham, East Renfrewshire is the largest onshore wind farm in the United Kingdom with 215 Siemens and Alstom wind turbines, and a total capacity of 539 MW. Clyde Wind Farm near Abington, South Lanarkshire is the UK's second largest onshore wind farm comprising 152 turbines with a total installed capacity of 350 MW. There are many other large onshore wind farms in Scotland, at various stages of development, including some that are in community ownership.
Robin Rigg Wind Farm in the Solway Firth is Scotland's only commercial-scale, operational offshore wind farm. Completed in 2010, the farm comprises 60 Vestas turbines with a total installed capacity of 180 MW. Scotland is also home to two offshore wind demonstration projects: The two turbine, 10 MW Beatrice Demonstrator Project located in the Moray Firth, and the single turbine, 7 MW Fife Energy Park Offshore Demonstration Wind Turbine in the Firth of Forth. There are also several other commercial-scale and demonstration projects in the planning stages.
The siting of turbines is often an issue, but multiple surveys have shown high local community acceptance for wind power in Scotland. There is further potential for expansion, especially offshore given the high average wind speeds, and a number of large offshore wind farms are planned.
The Scottish Government has a target of generating 50% of Scotland's electricity from renewable energy by 2015, and 100% by 2020, which was raised from 50% in September 2010. The majority of this is likely to come from wind power.
- 1 Offshore Wind Farms
- 2 Large wind farms
- 3 Under construction or proposed
- 4 Community ownership of wind farms
- 5 Debate
- 6 Wind variability
- 7 Potential
- 8 See also
- 9 References
- 10 External links
Offshore Wind Farms
Scotland's first offshore wind turbine was placed near the Beatrice Oil Field, 24 km (15 mi; 13 nmi) off the east coast in the Moray Firth, North Sea, in August 2006. This was the world's largest wind turbine at the time, an REpower 5M, with a maximum output of 5 MW. A second identical turbine joined it and the wind farm began supplying electricity in August 2007. As of February 2010, Beatrice Wind Farm is the deepest and northernmost offshore wind installation in the world.
This was the first time such large offshore wind turbines had been tested, and the first time any wind turbine generators have been assembled in such deep (44 metres) water. Such large wind turbine generators are ideally suited to the offshore environment due to high consistent wind speeds and minimal turbulence. According to historical measures of wind speeds at the Beatrice offshore location, it is expected that the turbines will run 96% of the time (8440 hours per year), and at 10 MW full power 38% of the time (3300 hours per year).
Large wind farms
Black Law Wind Farm
The 54-turbine Black Law Wind Farm has a total capacity of 124 MW. It is located near Forth in Lanarkshire and was built on old opencast coalmine site, with an original capacity of 97 MW from 42 turbines. It employs seven permanent staff on site and created 200 jobs during construction. A second phase saw the installation of a further 12 turbines. The project has received wide recognition for its contribution to environmental objectives. Over the period April 2009 to March 2010, Black Law Wind Farm produced 19.19% of its rated capacity.
Braes of Doune Wind Farm
Clyde Wind Farm
The Clyde Wind Farm is a 350 MW wind farm near Abington in South Lanarkshire, Scotland. The 152-turbine project by Scottish and Southern Energy, which was approved by the Scottish Parliament in July 2008, is capable of powering 300,000 homes. Turbines have been built either side of the M74 motorway. Construction of the wind farm, which is budgeted for £600 million, started in early 2009 and finished in 2012. The farm was opened at a ceremonial ribbon cutting by First Minister of Scotland Alex Salmond in September 2012.
Crystal Rig Wind Farm
Crystal Rig Wind Farm is an operational onshore wind farm located on the Lammermuir Hills in the Scottish Borders region of Scotland. When it was completed in May 2004 it was the largest wind farm in Scotland. As a result of 3 extensions it is currently the 2nd largest wind farm in the UK, both in terms of nameplate capacity and number of turbines. The whole site has 85 turbines and a nameplate capacity of 200.5 MW.
Farr Wind Farm
Farr Wind Farm is located some 10 miles south of Inverness, and comprises 40 wind turbines with a total installed capacity of 92 MW. Every year the wind farm generates enough clean electricity to meet the average annual needs of some 54,000 homes.
Hadyard Hill Wind Farm
Hadyard Hill Wind Farm, owned and operated by Scottish and Southern Energy (SSE), became the first wind farm in the UK with a capacity of over 100 MW. The 120 MW, 52-turbine wind farm in South Ayrshire cost £85 million and in a year generates enough electricity to power 80,000 homes, sufficient to supply every household in a city the size of York. The production of zero carbon electricity at the wind farm is expected to reduce emissions of carbon dioxide by almost 300,000 tonnes a year, equivalent to taking 70,000 cars off the road.
Robin Rigg Wind Farm
The Robin Rigg Wind Farm is a 180 MW development completed in April 2010, which is Scotland's first offshore wind farm, sited at Robin Rigg, a sandbank midway between the Galloway and Cumbrian coasts in the Solway Firth. It has 60 Vestas V90-3MW wind turbines.
Whitelee Wind Farm
Under construction or proposed
Viking Wind Farm
The Viking Wind Farm in the Shetland Islands was first proposed as a 600 MW 150 turbine project in 2009. After reduction in scope due to environmental concerns about effects of wildlife and peat bog carbon release during construction, as well as potential interference with equipment at Scatsta Airport the scheme was approved in 2012 as a 103 turbine scheme of 370 MW. The scheme is expected to achieve high capacity factors due to wind conditions in Shetland, as the Burradale achieves over 50% efficiency.
Offshore wind farms
In January 2010 contracts were awarded for a major expansion of offshore wind power in the seas around Scotland. Moray Offshore Renewables will develop offshore wind power in the Moray Firth, and SeaGreen Wind Energy will develop offshore wind in the Firth of Forth. These developments could lead to 1,000 new wind turbines generating nearly 5,000 MW of power. Jobs "could also be created in manufacturing, research, engineering, installation, operation and services".
Community ownership of wind farms
Community-owned schemes in Scotland include one on the Isle of Gigha. The Heritage Trust set up Gigha Renewable Energy to buy and operate three Vestas V27 wind turbines, known locally as The Dancing Ladies or Creideas, Dòchas is Carthannas (Gaelic for Faith, Hope and Charity). They were commissioned on 21 January 2005 and are capable of generating up to 675 kW of power. Revenue is produced by selling the electricity to the grid via an intermediary called Green Energy UK. Gigha residents control the whole project and profits are reinvested in the community.
Findhorn Ecovillage has four Vestas wind turbines which can generate up to 750 kW. These make the community net exporters of renewably generated electricity. Most of the generation is used on-site with any surplus exported to the National Grid.
Existing public policy with regard to wind power has become a topic of debate in recent years.
Public opinion surveys
In 2003, MORI Scotland was commissioned by the Scottish Executive to undertake a study examining the attitudes of people living close to Scottish wind farms. The survey showed that people living near Scotland’s ten largest wind farms strongly support more of Scotland's energy needs being produced by the wind. 82% wanted an increase in electricity generated from wind power, whilst more than 50% supported an increase in the number of wind turbines at their local wind farm. 20% say their local wind farm has had a broadly positive impact on the area, as opposed to a negative impact (7%).
A survey conducted in 2005, and commissioned by the renewable energy industry, showed that 74% of people in Scotland agree that wind farms are necessary to meet current and future energy needs. When people were asked the same question in a Scottish Renewables study conducted in 2010, 78% agreed. The increase is significant as there were twice as many wind farms in 2010 as there were in 2005. The 2010 survey also showed that 52% disagreed with the statement that wind farms are "ugly and a blot on the landscape". 59% agreed that wind farms were necessary and that how they looked was unimportant. The 2010 study suggests that the majority of people in Scotland are in support of clean energy. However this survey has been widely criticised for its methodology, in that it used a weighting scale such that the opinion those who lived nearer windfarms was rated as of lesser importance.
In 2013, a YouGov energy survey concluded that:
New YouGov research for Scottish Renewables shows Scots are twice as likely to favour wind power over nuclear or shale gas Over six in ten (62%) people in Scotland say they would support large scale wind projects in their local area, more than double the number who said they would be generally for shale gas (24%) and almost twice as much as nuclear (32%). Hydro power is the most popular energy source for large scale projects in Scotland, with an overwhelming majority (80%) being in favour.
Aesthetics and environmental issues
Siting of wind turbines has sometimes been an issue, as most people are concerned about the value of natural landscapes. The John Muir Trust has stated that "the best renewable energy options around wild land are small-scale, sensitively sited and adjacent to the communities directly benefiting from them" although this does rather miss the point that onshore wind developments are required to meet large-scale, national targets not local needs. A small-scale scheme proposed by North Harris Development Trust has been supported by the John Muir Trust. A 2013 poll carried out by the John Muir Trust, suggests that 75% of Scots would like to see their wild areas protected from further development. Wind farm developers sometimes offer "community benefit funds" to help address any disadvantages faced by those living adjacent to wind farms.
The Ardrossan Wind Farm on the west coast of Scotland has been "overwhelmingly accepted by local people". Instead of spoiling the landscape, local people believe it has enhanced the area. According to one of the town's councillors: "The turbines are impressive looking, bring a calming effect to the town and, contrary to the belief that they would be noisy, we have found them to be silent workhorses".
The £90 million Black Law Wind Farm is located near Forth in Lanarkshire and has been built on an old opencast coalmine site which was completely restored to shallow wetlands during the construction programme. It employs seven permanent staff on site and created 200 jobs during construction.
However, concerns over inappropriate siting of turbines has been voiced by groups in Fife, in particular, where the number of planning applications for turbines has risen sharply. This also is true of Berwickshire, which is home to the second largest windfarm in the UK, Crystal Rig Wind Farm, and where hundreds more turbines are due to be situated, contrary to the wishes of many residents of the county, and the John Muir Trust.
Also, the siting of turbines in environmentally sensitive areas has led to the deaths of migratory and native birds, such as on Harris where a rare visitor to Scotland, a white-throated needletail was witnessed being killed by a turbine.
Wind power produces no greenhouse gases during operation, although inevitably some are produced during construction and transport. The precise amounts involved are a matter of controversy. Manufacturers typically state that carbon emissions are 'paid back' within 3–18 months of production, but recent research claims that turbines located on peat bogs create incidental emissions that may increase this to 8 years or more. A 2013 financial analysis of utility companies such as the SSE (formerly Scottish and Southern Electricity) concluded that utilities were haemorrhaging cash. Construction of wind farms by the electrical generating industry lead to duplication of existing power plants which were still needed as backup without increasing the utilities customer base or their output.
Scottish Natural Heritage has stated that the decommissioning of ageing turbine structures in the future would be more deleterious to the environment than leaving the bases in place, thus littering Scotland's wild land with concrete which though they could be covered with topsoil, could lead to "oxidising and subsequent staining/contamination" and would lead to irreversible damage to the sensitive peatlands on which many are built. Alternatively, new wind farms could be built on the same site, minimising overall damage.
This section requires expansion. (July 2012)
Some Scottish wind farms have become tourist attractions. According to a 2002 poll carried out by MORI Scotland, "nine out of ten tourists visiting some of Scotland's top beauty spots say the presence of wind farms makes no difference to the enjoyment of their holiday, and twice as many people would return to an area because of the presence of a wind farm than would stay away". The Whitelee Wind Farm Visitor Centre has an exhibition room, a learning hub, a café with a viewing deck and also a shop. It is run by the Glasgow Science Centre.
Most turbines in the European Union produce electricity at an average of 25% of their rated maximum power due to the variability of wind resources, but Scotland's wind regime provides average capacity factor of 31% or higher on the west and northern coasts. The load factor recorded for the onshore North Rhins windfarm near Stranraer was 40%, which is typical for well-sited mainland windfarms. A small wind farm on Shetland with five Vestas V47 660 kW turbines recently achieved a world record of 58% capacity over the course of a year. This record is claimed by Burradale windfarm, located just outside Lerwick and operated by Shetland Aerogenerators Ltd. Since opening in 2000, the turbines at this wind farm have had an average capacity factor of 52% and, according to this report, in 2005 averaged a world record 57.9%. However, on some occasions the total generation of Scottish windfarms is less than 2% of rated maximum capacity. On the west and northern coasts Scotland's wind regime can provide an average of 40% or higher.
It is estimated that 11.5 GW of onshore wind potential exists, enough to provide about 45 TWh of energy in a year, allowing for wind variability. More than double this amount exists on offshore sites where mean wind speeds are greater than on land. The total offshore potential is estimated at 25 GW, and although more expensive to install could be enough to provide almost half the total energy used in Scotland.
According to a recent report, the world's wind market offers many opportunities for Scottish companies, with total global revenue over the next five years estimated at £35 billion and continued growth forecast until at least 2025.
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