Wind power in the United Kingdom
The UK is one of the best locations for wind power in the world, and is considered to be the best in Europe.  Wind power delivers a growing fraction of the energy in the United Kingdom and at the beginning of January 2014, wind power in the United Kingdom consisted of 5,276 wind turbines with a total installed capacity of over 10 gigawatts: 6,831 megawatts of onshore capacity and 3,653 megawatts of offshore capacity. The United Kingdom is ranked as the world's sixth largest producer of wind power, having recently overtaken France and Italy.
2.7 GW of new wind power capacity was brought online during 2013, a 35% increase of the total UK installed capacity. The offshore wind industry continued to develop in 2013 with the largest wind farm in the world, the London Array, becoming operational with over 630 MW of generating capability coming on stream.
December 2013 was a record breaking month for UK wind power. A total of 2,841,080 MWh of electricity was generated in the month - supplying 10% of the UK's electricity demand. The week starting Monday 16th December, wind generated a record 783,886 MWh – providing 13% of Britain’s total electricity needs that week. And on the 21st December, a record daily amount of electricity was produced with 132,812 MWh generated, representing 17% of the nation’s total electricity demand on that day. 
In 2012, 19.4 TW·h of energy was generated by wind power, which contributed 5.3% of the UK's electricity requirement.
Through the Renewables Obligation, British electricity suppliers are now required by law to provide a proportion of their sales from renewable sources such as wind power or pay a penalty fee. The supplier then receives a Renewables Obligation Certificate (ROC) for each MW·h of electricity they have purchased. Within the United Kingdom, wind power is the largest source of renewable electricity, and the second largest source of renewable energy after biomass.
Wind power is expected to continue growing in the United Kingdom for the foreseeable future – RenewableUK estimated in 2010 that more than 2,000 MW of capacity would be deployed per year for the next five years. By 2020, the United Kingdom is expected to have more than 28,000 MW of wind capacity.
- 1 History
- 2 Offshore wind farms
- 3 Onshore wind farms
- 4 Economics
- 5 Variability and related issues
- 6 Public opinion
- 7 See also
- 8 References
- 9 External links
The world's first electricity generating wind turbine was a battery charging machine installed in July 1887 by Scottish academic James Blyth to light his holiday home in Marykirk, Scotland. It was in 1951 that the first utility grid-connected wind turbine to operate in the United Kingdom was built by John Brown & Company in the Orkney Islands. In the 1970s industrial scale wind generation was first proposed as an electricity source for the United Kingdom; the higher working potential of offshore wind was recognised with a capital cost per kilowatt estimated at £150 to £250.
In 2007 the United Kingdom Government agreed to an overall European Union target of generating 20% of the EU’s energy supply from renewable sources by 2020. Each EU member state was given its own allocated target: for the United Kingdom it is 15%. This was formalised in January 2009 with the passage of the EU Renewables Directive. As renewable heat and renewable fuel production in the United Kingdom are at extremely low bases, RenewableUK estimates that this will require 35–40% of the United Kingdom's electricity to be generated from renewable sources by that date, to be met largely by 33–35 gigawatts (GW) of installed wind capacity.
In December 2007, the Government announced plans for an expansion of wind energy in the United Kingdom, by conducting a Strategic Environmental Assessment of up to 25 GW worth of wind farm offshore sites in preparation for a new round of development. These proposed sites are in addition to the 8 GW worth of sites already awarded in the 2 earlier rounds of site allocations, Round 1 in 2001 and Round 2 in 2003. Taken together it is estimated that this would result in the construction of over 7,000 offshore wind turbines.
723 MW of new wind power capacity was brought online during 2011, a 40% decrease on 2010. Only one offshore wind farm, phase 1 of the Walney Wind Farm, was completed in 2011 with a capacity of 183 MW. This compares with a total 653 MW built offshore in 2010. Onshore installations were very similar to the previous year with 540 MW completed: the largest to come on stream was the 120 MW Arecleoch Wind Farm in South Ayrshire. A highlight of 2011 was on 28 December when wind power set a record contribution to the United Kingdom's demand for electricity of 12.2%.
As of September 2012, 87 (4,907 MW) wind farm schemes are currently under construction, while another 277 (5,796 MW) projects have planning consent and 358 (over 10 GW) are in planning awaiting approval.
In the year July 2012 to June 2013, offshore wind farms with a capacity of 1,463 MW were installed, for the first time growing faster than onshore wind which grew by 1,258 MW.
On the 1st of August 2013 Deputy Prime Minister Nick Clegg opened the Lincs Offshore Wind Farm. On commissioning the total capacity of wind power crossed 10GW of installed capacity for the first time.
|Installed Capacity (MW)||2,974||4,051||5,204||6,540||8,871|
|% of electricity use||1.50||2.01||2.28||3.81||5.86|
Offshore wind farms
The United Kingdom became the world leader of offshore wind power generation in October 2008 when it overtook Denmark. It also has the largest offshore wind farm in the world, the 175-turbine London Array wind farm, located off the Kent coast. Currently it has 1,858 MW of operational nameplate capacity, with a further 2,359 MW in construction. The United Kingdom has been estimated to have over a third of Europe's total offshore wind resource, which is equivalent to three times the electricity needs of the nation at current rates of electricity consumption, although this is only at times when the wind blows. (In 2010 peak winter demand was 59.3 GW, in summer it drops to about 45 GW). One estimate calculates that wind turbines in one third of United Kingdom waters shallower than 25 metres (82 ft) would, on average, generate 40 GW; turbines in one third of the waters between 25 metres (82 ft) and 50 metres (164 ft) depth would on average generate a further 80 GW, i.e. 120 GW in total). An estimate of the theoretical maximum potential of the United Kingdom's offshore wind resource in all waters to 700 metres (2,300 ft) depth gives the average power as 2200 GW.
The first developments in United Kingdom offshore wind power came about through the now discontinued Non-Fossil Fuel Obligation (NFFO), leading to two wind farms, Blyth Offshore and Gunfleet sands. The NFFO was introduced as part of the Electricity Act 1989 and obliged United Kingdom electricity supply companies to secure specified amounts of electricity from non-fossil sources, which provided the initial spur for the commercial development of renewable energy in the United Kingdom.
In 1998 the British Wind Energy Association (now RenewableUK) began discussions with the government to draw up formal procedures for negotiating with the Crown Estate, the owner of almost all the United Kingdom coastline out to distance of 12 nautical miles (22.2 km), to build offshore wind farms. The result was a set of guidelines published in 1999, to build "development" farms designed to give developers a chance to gain technical and environmental experience. The projects were limited to 10 square kilometres in size and with a maximum of 30 turbines. Locations were chosen by potential developers and a large number of applications were submitted. Seventeen of the applications were granted permission to proceed in April 2001, in what has become known as Round 1 of United Kingdom offshore wind development.
The first of the Round 1 projects was North Hoyle Wind Farm, completed in December 2003. Ten more have since been completed, the most recent being Ormonde in August 2011. They provide a total power generating capacity of 1,100 MW. The final project, Teesside, has planning consent and is awaiting construction. Five sites were withdrawn, including the Shell Flat site off the coast of Lancashire.
Lessons learnt from Round 1, particularly the difficulty in getting planning consent for offshore wind farms, together with the increasing pressure to reduce CO2 emissions, prompted the Department of Trade and Industry (DTI) to develop a strategic framework for the offshore wind industry. This identified three restricted areas for larger scale development, Liverpool Bay, the Thames Estuary and the area beyond the Wash, called the Greater Wash, in the North Sea. Development was prevented in an exclusion zone between 8 and 13 km offshore to reduce visual impact and avoid shallow feeding grounds for sea birds. The new areas were tendered to prospective developers in a competitive bid process known as Round 2. The results were announced in December 2003 with 15 projects awarded with a combined power generating capacity of 7.2 GW. By far the largest of these is the 1.2 GW Triton Knoll. As before a full Environmental Impact Assessment (EIA) would be needed along with an application for planning consent.
Round 1 and 2 Extensions
In May 2010 the Crown Estate gave approval for seven Round 1 and 2 sites to be extended creating an additional 2 GW of offshore wind capacity. Each wind farm extension will require a complete new planning application including an Environmental Impact Assessment and full consultation. The sites are:
- Burbo Bank and Walney: Dong Wind UK.
- Kentish Flats and Thanet: Vattenfall.
- Greater Gabbard: SSE Renewables and RWE Npower Renewables.
- Race Bank: Centrica Renewable Energy.
- Dudgeon: Warwick Energy.
Following on from the Offshore wind SEA announced by the Government in December 2007, the Crown Estate launched a third round of site allocations in June 2008. Round 3 is envisaged on a much bigger scale than either of its predecessors – combined, Rounds 1 and 2 allocated 8 GW of sites, while Round 3 alone could identify up to 25 GW.
The Crown Estate proposed 9 offshore zones, within which a number of individual wind farms would be situated. It ran a competitive tender process to award leases to consortia of potential developers. The bidding closed in March 2009 with over 40 applications from companies and consortia and multiple tenders for each zone. On 8 January 2010 the successful bidders were announced.
Following the allocation of zones, individual planning applications still have to be sought by developers. These are unlikely to be completed before 2012 and as such the first Round 3 projects are not expected to begin generating electricity before 2015.
Round 3 consortia
During the bidding process, there was considerable speculation over which companies had bid for the zones. The Crown Estate did not make the list public and most of the consortia also remained silent. The successful bidders for each zone were eventually announced as follows:
|1||Moray Firth||1.3||Moray Offshore Renewables Ltd||formed from EDP Renováveis and SeaEnergy Renewables Ltd (SERL)|
|2||Firth of Forth||3.5||Seagreen Wind Energy Ltd||partnership between SSE Renewables and Fluor Ltd|
|3||Dogger Bank||9||Forewind Ltd||a consortium made up of SSE Renewables, RWE npower, Statkraft and Statoil.
If built this would be the world's largest offshore wind farm.
|4||Hornsea||4||SMart Wind Ltd||joint venture between Mainstream Renewable Power and Siemens Project Ventures|
|5||East Anglia||7.2||East Anglia Offshore Wind Limited||joint venture between ScottishPower Renewables and Vattenfall AB|
|6||Rampion||0.6||E.ON Climate & Renewables / UK Southern Array Ltd||located south of Hastings in the English Channel|
|7||Navitus Bay||0.9||Eneco Round 3 Development Ltd||partnership between Eneco and EDF; located to the west of the Isle of Wight|
|8||Atlantic Array||Channel Energy Ltd (RWE Innogy)||Withdrawn in November 2013 as "project uneconomic at current time" |
|9||Celtic Array||4.2||Celtic Array Limited||Joint venture between Centrica Energy Renewable Limited and DONG Energy Wind Power Holdings|
In addition to the 25 GW scoped under the Round 3 SEA, the Scottish Government and the Crown Estate also called for bids on potential sites within Scottish territorial waters. These were originally considered as too deep to provide viable sites, but 17 companies submitted tenders and the Crown Estate initially signed exclusivity agreements with 9 companies for 6 GW worth of sites. Following publication of the Scottish Government's sectoral marine plan for offshore wind energy in Scottish territorial waters in March 2010, six sites were given approval subject to securing detailed consent. Subsequently 5 sites have been granted agreements for lease.
The complete list of sites including power updates and developer name changes:-
|Beatrice||1000||SSE Renewables plc||Application currently with the Scottish Government for consideration|
|Inch Cape||1000||Repsol Nuevas Energias SA
|New partnership following dissolution of the original consortium|
|Neart Na Gaoithe||450||Mainstream Renewable Power Ltd||Planning application submitted in July 2012|
|Islay||680||SSE Renewables||Application to develop the site expected to be submitted to the Scottish Government towards the end of 2013|
|Solway Firth||E.ON Climate & Renewables UK Developments||Dormant – Unsuitable for development|
|Wigtown Bay||DONG Wind (UK)||Dormant – Unsuitable for development|
|Kintyre||Airtricity Holdings (UK) Ltd||Cancelled due to proximity to local communities and Campbeltown Airport|
|Forth Array||Fred. Olsen Renewables Ltd||Cancelled. Fred. Olsen pulled out to concentrate on its onshore developments|
|Bell Rock||Airtricity Holdings (UK) Ltd
|Cancelled due to radar services in the area|
|Argyll Array||Scottish Power Renewables||Cancelled due to ground conditions and presence of basking sharks|
List of operational and proposed offshore wind farms
|Power (MW)||No. Turbines||Notes||Round|
|Blyth Offshore||December 2000||4||2||Evaluation project.||NFFO|
|North Hoyle||December 2003||60||30||United Kingdom's first major offshore wind farm.||1|
|Scroby Sands||December 2004||60||30||1|
|Kentish Flats||December 2005||90||30||1|
|Barrow Offshore Wind||May 2006||90||30||1|
|Burbo Bank||October 2007||90||25||1|
|Beatrice||August 2007||10||2||Deep water evaluation project.||Eval|
|Lynn and Inner Dowsing||October 2008||194||54||1|
|Rhyl Flats||December 2009||90||25||Officially inaugurated 2 December 2009||1|
|Gunfleet Sands||April 2010||173||48||Officially inaugurated 16 June 2010||1–2|
|Robin Rigg||April 2010||180||60||1|
|Ormonde||February 2012||150||30||Commissioned 22 February 2012.||1|
|Greater Gabbard||August 2012||504||140||Commissioned 7 August 2012.||2|
|Sheringham Shoal||September 2012||317||88||Commissioned 27 September 2012||2|
|London Array||April 2013 ||630||175||Commissioned 6 April 2013. World's largest offshore wind farm.||2|
|Lincs||July 2013||270||75||Commissioned 5 July 2013 ||2|
|Teesside||August 2013||62||27||Final Round 1 project completed||1|
|Gwynt y Môr||2014||576||160||Consent granted December 2008. Construction started January 2012.||2|
|West of Duddon Sands||Late 2014||389||108||Consent granted in 2008. First generation started January 2014||2|
|Methil||7||1||7MW turbine evaluation project. Consent granted April 2011||Eval|
|Westermost Rough||First half of 2015||210||35||Consent granted July 2011 Offshore construction to start in first half of 2014.||2|
|Humber Gateway||June 2015||219||73||First monopole installed September 2013||2|
|Dudgeon||2017||350-400||78||Consent granted July 2012 Application for Variation in July 2013 to increase area and reduce capacity||2|
|Race Bank||2015–16||580||88 to 206||Consent granted July 2012||2|
|Kentish Flats Extension||August 2016||50||15||Consent granted February 2013||2 Ext|
|Galloper||2017||340||94||Consent granted May 2013||2 Ext|
|Triton Knoll||2021||1,200||up to 288||Consent granted July 2013 ||2|
|Beatrice extension||2021||1,000||142–277||Planning application submitted in May 2012||STW|
|Neart Na Gaoithe||End of 2016||450||64–125||Planning application submitted in July 2012||STW|
|Inch Cape||2019||1000||up to 213||Planning application submitted in July 2013||STW|
|Moray Firth||2020||1500||189 to 339||Planning application submitted in August 2013||3|
|Firth of Forth||Q4 2019||1050||up to 150||Planning application submitted in October 2012 for Phase 1||3|
Onshore wind farms
The first commercial wind farm was built in 1991 at Delabole in Cornwall, it consisted of 10 turbines each with a capacity to generate a maximum of 400 kW. Following this, the early 1990s saw a small but steady growth with half a dozen farms becoming operational each year, the larger wind farms tended to be built on the hills of Wales, examples being Rhyd-y-Groes, Llandinam, Bryn Titli and Carno. Smaller farms were also appearing on the hills and moors of Northern Ireland and England. The end of 1995 saw the first commercial wind farm in Scotland go into operation at Hagshaw Hill. The late 1990s saw sustained growth as the industry matured. In 2000 the first turbines capable of generating more than 1MW were installed and the pace of growth started to accelerate as the larger power companies like Scottish Power and Scottish and Southern became increasingly involved in order to meet legal reguirements to generate a certain amount of electricity using renewable means (see Renewables Obligations below). Wind turbine development continued rapidly and by the mid 2000s 2MW+ turbines were the norm. In 2007, the German wind turbine producer Enercon installed the first 6 MW model ("E-126"); The nameplate capacity was changed from 6 MW to 7 MW after technical revisions were performed in 2009, and to 7.5 MW in 2010.
Growth continued with bigger farms and larger, more efficient turbines sitting on taller and taller masts. Scotland's sparsely populated, hilly and windy countryside became a popular area for developers and the United Kingdom's first 100MW+ farm went operational in 2006 at Hadyard Hill in South Ayrshire. 2006 also saw the first use of the 3 MW turbine. In 2008 the largest onshore wind farm in England was completed on Scout Moor and the repowering of the Slieve Rushen Wind Farm created the largest farm in Northern Ireland. In 2009 the largest wind farm in the United Kingdom went live at Whitelee on Eaglesham Moor in Scotland. This is a 539 MW wind farm consisting of 215 turbines. Approval has been granted to build several more 100MW+ wind farms on hills in Scotland and will feature 3.6 MW turbines.
As of September 2013 there were 458 operational onshore wind farms in the United Kingdom with a total of 6565 MW of nameplate capacity. A further 1564 MW of capacity is currently being constructed, while another 4.8 GW of schemes have planning consent.
In 2009, United Kingdom onshore wind farms generated 7,564 GW·h of electricity, this represents a 2% contribution to the total United Kingdom electricity generation (378.5 TW·h).
Large onshore wind farms are usually directly connected to the National Grid, but smaller wind farms are connected to a regional distribution network, termed "embedded generation". In 2009 nearly half of wind generation capacity was embedded generation, but this is expected to reduce in future years as larger wind farms are built.
Gaining planning permission for onshore wind farms continues to prove difficult, with many schemes stalled in the planning system, and a high rate of refusal. The RenewableUK (formerly BWEA) figures show that there are approximately 7,000 MW worth of onshore schemes waiting for planning permission. On average a wind farm planning application takes 2 years to be considered by a local authority, with an approval rate of 40%. This compares extremely unfavourably with other types of major applications, such as housing, retail outlets and roads, 70% of which are decided within the 13–16-week statutory deadline; for wind farms the rate is just 6%. Approximately half of all wind farm planning applications, over 4 GW worth of schemes, have objections from airports and traffic control on account of their impact on radar. In 2008 NATS en Route, the BWEA, the Ministry of Defence and other Government departments signed a Memorandum of Understanding seeking to establish a mechanism for resolving objections and funding for more technical research.
List of the largest operational and proposed onshore wind farms
|Wind farm||County||Country||Turbine model||Power (MW)
|No. Turbines||Total capacity
|Notes and references|
|Crystal Rig||Scottish Borders||Scotland||Nordex N80/ Siemens SWT-2.3||2.5/2.3||25/60||200.5||May 2004||Extended May 2007 (1a) & September 2010 (2 & 2a)|
|Cefn Croes||Ceredigion||Wales||GE 1.5 se||1.5||39||58.5||June 2005||Largest onshore wind farm in Wales|
|Black Law||South Lanarkshire||Scotland||Siemens SWT-2.3||2.3||54||124||September 2005||Extended September 2006 (Phase 2)|
|Hadyard Hill||South Ayrshire||Scotland||Bonus B2300||2.5||52||120||March 2006|
|Farr||Highland||Scotland||Bonus B2300||2.3||40||92||May 2006|
|Slieve Rushen||Co Fermanagh||Northern Ireland||Vestas V90||3||18||54||April 2008||Largest onshore farm in Northern Ireland|
|Scout Moor||Lancashire||England||Nordex N80||2.5||26||65||September 2008||Largest onshore farm in England|
|Whitelee||East Renfrewshire||Scotland||Siemens SWT-2.3||2.3||140||322||November 2008||Largest operational onshore wind farm in the United Kingdom|
|Arecleoch||South Ayrshire||Scotland||Gamesa G87||2||60||120||June 2011||Construction began October 2008, completed on June 2011|
|Griffin||Perth & Kinross||Scotland||Siemens SWT-2.3||2.3||68||156.4||February 2012||Construction began August 2010, completed on February 2012|
|Clyde||South Lanarkshire||Scotland||Siemens SWT-2.3||2.3||152||350||September 2012||Construction began January 2010, completed on September 2012|
|Fallago Rig||Scottish Borders||Scotland||Vestas V90||3||48||144||April 2013||Construction finished April 2013|
|East Renfrewshire||Scotland||Alstom ECO 100/ECO 74||3/1.6||69/6||217||April 2013||Construction finished April 2013|
|Harestanes||Dumfries & Galloway||Scotland||3||71||213|||
|Muaitheabhal||Western Isles||Scotland||3.6||33||118||Construction began October 2012|
|Keadby Wind Farm||Lincolnshire||England||2||34||68||First power produced September 2013, Will be Englands largest onshore farm once complete|
|Shetland Islands||Scotland||3.6||103||370.8||Consent granted April 2012 with reduced number of turbines. Construction scheduled to start in 2013|
|Pen y Cymoedd||Neath Port Talbot & Rhondda Cynon Taf||Wales||3||76||228||Consent granted May 2012|
|Dorenell||Moray||Scotland||3||59||177||Consent granted June 2012|
|Dumfries & Galloway||Scotland||3||96||288||Consent granted February 2013|
|Strathy Sound||Highland||Scotland||2.3||77||177||Planning application submitted June 2007|
|Carnedd Wen||Powys||Wales||2.5||50||150||Planning application submitted January 2009|
|East Ayrshire||Scotland||3||39||117||Planning application submitted October 2011|
|Stronelairg||Scotland||3.6||83||300||Planning application submitted June 2012|
||The neutrality of this section is disputed. (April 2013)|
Through the Renewables Obligation, British electricity suppliers are now required by law to provide a proportion of their sales from renewable sources such as wind power or pay a penalty fee. The supplier then receives a Renewables Obligation Certificate (ROC) for each MW·h of electricity they have purchased. The Energy Act 2008 introduced banded ROCs for different technologies from April 2009. Onshore wind receives 1 ROC per MW·h, however following the Renewables Obligation Banding Review in 2009 offshore wind now receives 2 ROCs to reflect its higher costs of generation. Wind energy receives approximately 40% of the total revenue generated by the RO. The ROCs are the principal form of support for United Kingdom wind power, providing over half of the revenue from wind generation.
A 2004 study by the Royal Academy of Engineering using "simplification and approximation" found that wind power cost 5.4 pence per kW·h for onshore installations and 7.2 pence per kW·h for offshore, compared to 2.2p/kW·h for gas and 2.3p/kW·h for nuclear. By 2011 onshore wind costs at 8.3p/kW·h had fallen below new nuclear at 9.6p/kW·h, though it had been recognised that offshore wind costs at 16.9p/kW·h were significantly higher than early estimates mainly due to higher build and finance costs, according to a study by the engineering consultancy Mott MacDonald. Wind farms are made profitable by subsidies through Renewable Obligation Certificates which provide over half of wind farm revenue. The total annual cost of the Renewables Obligation topped £1 billion in 2009 and is expected to reach £5 billion by 2020, of which about 40% is for wind power. This cost is added to end-user electricity bills. Sir David King has warned that this could increase UK levels of fuel poverty.
Small wind systems under 50 kW previously received 2 ROCs, but are now eligible for support under the Feed In Tariff.
Wind-generated power is a variable resource, and the amount of electricity produced at any given point in time by a given plant will depend on wind speeds, air density, and turbine characteristics (among other factors). If wind speed is too low (less than about 2.5 m/s) then the wind turbines will not be able to make electricity, and if it is too high (more than about 25 m/s) the turbines will have to be shut down to avoid damage. If this happens during a winter cold snap, when winds are calm over large regions and electrical demand reaches its highest levels of the year, other power sources must have the capacity of meeting that entire demand. Three reports on the wind variability in the United Kingdom issued in 2009, generally agree that variability of the wind does not make the grid unmanageable; and the additional costs, which are modest, can be quantified. For wind power market penetration of up to 20% studies in the UK show a cost of £3-5/MWh. In the United Kingdom, demand for electricity is higher in winter than in summer, and so are wind speeds.
While the output from a single turbine can vary greatly and rapidly as local wind speeds vary, as more turbines are connected over larger and larger areas the average power output becomes less variable. Studies by Graham Sinden (2009) suggest that, in practice, the variations in thousands of wind turbines, spread out over several different sites and wind regimes, are smoothed, rather than intermittent. As the distance between sites increases, the correlation between wind speeds measured at those sites, decreases.
A Scottish government spokesman has said electricity generated by renewables accounted for 27% of Scotland's electricity use. On the night of 5–6 April 2011, the wind in Scotland was high, it was raining heavily, which also created more hydroelectricity than normal. The grid became overloaded preventing transmission of the electrical power to England, as a result the electrical wind power generation was cut. Wind farms operators were paid compensation known as "constraint payments" as a result (a total of approximately £900,000) by the National Grid, estimated at twenty times the value of electricity that would have been generated. A spokesman for the Department for Energy and Climate Change (DECC), described the occurrence as unusual, and noted it demonstrated a need for greater energy storage capacity and better electrical power distribution infrastructure. The payment of 'constraint payments' to wind energy suppliers is one source of criticism of the use wind power, and its implementation; in 2011 it was estimated that nearly £10 million in constraint payments would be received, representing ten times the value of the potential lost electricity generation.
There is some dispute over the necessary amount of reserve or backup required to support the large-scale use of wind energy due to the variable nature of its supply. In a 2008 submission to the House of Lords Economic Affairs Committee, E.ON UK argued that it is necessary to have up to 80–90% backup. Other studies give a requirement of 15% to 22% of installed intermittent capacity. National Grid which has responsibility for balancing the grid reported in June 2009 that the electricity distribution grid could cope with on-off wind energy without spending a lot on backup, but only by rationing electricity at peak times using a so-called "smart grid", developing increased energy storage technology and increasing interconnection with the rest of Europe. In June 2011 several energy companies including Centrica told the government that 17 gas-fired plants costing £10 billion would be needed by 2020 to act as back-up generation for wind. However as they would be standing idle for much of the time they would require "capacity payments" to make the investment economic, on top of the subsidies already paid for wind.
A 2003 survey of residents living around Scotland's 10 existing wind farms found high levels of community acceptance and strong support for wind power, with much support from those who lived closest to the wind farms. The results of this survey support those of an earlier Scottish Executive survey 'Public attitudes to the Environment in Scotland 2002', which found that the Scottish public would prefer the majority of their electricity to come from renewables, and which rated wind power as the cleanest source of renewable energy. A survey conducted in 2005 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. Scotland is planning to obtain 100% of electricity from renewable sources by 2020.
- Lists of offshore wind farms by country
- Lists of offshore wind farms by water area
- Lists of wind farms by country
- List of power stations in Scotland#Wind power
- List of wind turbine manufacturers
Related United Kingdom pages
- Energy use and conservation in the United Kingdom
- Energy policy of the United Kingdom
- Renewable energy in the United Kingdom
- Green electricity in the United Kingdom
- Renewable energy in Scotland
- Wind power in Scotland
Developers and operators
- Baywind Energy Co-operative
- DONG Energy
- Good Energy
- REG WindPower
- RWE npower
- Westmill Wind Farm Co-operative
- Environmental impact of wind power
- Friends of the Earth
- Relative cost of electricity generated by different sources
- Renewable Electricity and the Grid
- Renewable energy in the European Union
- United Kingdom National Renewable Energy Action Plan
- UK Renewable Energy Roadmap Crown copyright, July 2011
- . RenewableUK - UK Wind Energy Database (UKWED)
- The Windpower.net satistics per country
- BBC News website article - London Array opens
- Renewable UK press release
- DECC Energy trends statistics section 6: renewables
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- "Renewable sources of energy: chapter 6", Digest of United Kingdom energy statistics (DUKES), Department of Energy & Climate Change, pp. 159–162
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- RenewableUK news article – Wind farms hit high of more than 12% of UK electricity demand. Bwea.com (6 January 2012).
- RenewableUK Wind Energy statistics. Bwea.com.
- "Record-Breaking Year for UK Offshore Wind" Offshorewind.biz, 6 November 2013. Accessed: 6 November 2013.
- Department Of Energy and Climate Change
- Historical electricity data: 1920 to 2011
- DECC Energy Trends March 2013
- Jha, Alok (21 October 2008). "UK overtakes Denmark as world's biggest offshore wind generator". The Guardian (London). Retrieved 2008-11-12.
- Renewable UK UKWED Offshore wind farms. Bwea.com.
- Oswald, James; Raine, Mike; Ashraf-Ball, Hezlin (June 2008). "Will British weather provide reliable electricity?". Energy Policy 36: 2312–2325.
- National Grid Table of Indicative Triad Demand Information showing 7 January 2010 peak. Bmreports.com.
- MacKay, David. Sustainable Energy – without the hot air. pp. 60–62. Retrieved 3 April 2010.
- "Two Terawatts average power output: the UK offshore wind resource". Retrieved 2010-08-02.
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