Our renewables success story

Celebrating our role in the UK's onshore and offshore wind farms

“A significant element of providing all our residential customers with renewable electricity – a change at a scale never seen before in Britain – was the fact we have invested more than £3.3bn in renewable energy in the UK in recent years” 

- Michael Lewis, E.ON UK Chief Executive.

How we met the needs of a changing world

E.ON's history in renewable energy goes back to 1991 when we began developing our first onshore wind farm. Since then we've continued to innovate and develop wind, solar and biomass technologies to help tackle climate change and create a sustainable energy system for the future.

Over the following three decades we continued to play a role in pioneering the UK’s renewable energy future; developing our expertise and experience through a vast portfolio of both onshore and offshore wind farms across the UK, investing more than £3.3bn in UK renewables in the last ten years alone.

We were part of the consortium that built London Array, the world's largest offshore wind farm at the time it opened in 2013. And, more recently, as a partner in Rampion we built the first wind farm off the UK's south coast.

In October 2019, the majority of E.ON's wind generation business was transferred to RWE. Having driven the development of large-scale renewables for almost three decades, the future E.ON will now apply itself to tackling the challenge of helping customers at home and in business to come together and to play their part in the smart and sustainable future energy world.

onshore wind turbines

Onshore generation - our story

From Rhyd-y-Groes on Anglesey in 1992 to Camster in the Scottish Highlands in 2014, E.ON has built and operated onshore wind farms across Great Britain which continue to play a part in meeting the UK's net-zero carbon emissions targets.


The early development of onshore wind in the UK tested the technology and helped prove its viability as a vital addition to meet the UK’s energy needs. These early successes helped to build the supply chain and investment potential for future developments in the UK’s renewable energy fleet.

wind turbines at sea

Offshore generation - our story

We were behind the UK's first ever offshore wind farm – the twin turbines off the coast of Blyth in Northumberland. Blyth provided a valuable testing ground that played a part in making the country's offshore wind sector what it is today. Since then we have driven some of Britain's pioneering, commercial-scale offshore wind projects, with developments off the east of England, the Thames Estuary, the south coast and the Solway Firth.

Combined, these wind farms produce enough electricity to power the equivalent of more than 1.1 million homes but play an equally positive role in proving that renewable energy works and can more than compete on cost grounds with their fossil fuel alternatives.

A timeline of our renewable generation

1990 - 1999

1992 - Rhyd-y-Groes, Anglesey
E.ON's first onshore wind farm became operational
Turbines: 22
Hub height: 31m
Power: 6.6MW

1993 - Royd Moor, Yorkshire
Onshore wind farm
Turbines: 13
Hub height: 39m
Power: 6.5MW

1993 - Ovenden Moor, Yorkshire
Onshore wind farm (decommissioned and repowered 2017)
Turbines: 23
Hub height: 32m
Power: 9.2MW

1996 - Siddick, Cumbria
Onshore wind farm
Turbines: 7
Hub height: 40m
Power: 4.2MW

1996 - Oldside, Cumbria
Onshore wind farm
Turbines: 9
Hub height: 40m
Power: 5.4MW

1999 - Askam, Cumbria
Onshore wind farm
Turbines: 7
Hub height: 40m
Power: 4.6MW

2000 - 2009

2000 - Lowca, Cumbria
Onshore wind farm
Turbines: 7
Hub height: 40m
Power: 4.6MW

2000 - Blyth, Northumberland
UK's first offshore wind farm was commissioned with the capacity to generate enough energy to power 2,000 households
Turbines: 2
Hub height: 62m
Power: 4MW

2001 - Deucheran Hill, Kintyre Peninsular
Onshore wind farm
Turbines: 9
Hub height: 46m
Power: 15.7MW

2002 - Bowbeat, Scottish Borders
When built it was Scotland's most powerful wind farm
Turbines: 24
Hub height: 50m
Power: 31.2MW

2002 - Out Newton, East Yorkshire
Onshore wind farm
Turbines: 7
Hub height: 49m
Power: 9.1MW

2004 - Holmside, County Durham
Onshore wind farm
Turbines: 2
Hub height: 60m
Power: 5.5MW

2004 - High Volts, County Durham
Onshore wind farm. At the time these turbines were the largest and most powerful in the UK 
Turbines: 3
Hub height: 60m
Power: 8.2MW

2004 - Hare Hill, County Durham
Onshore wind farm
Turbines: 2
Hub height: 60m
Power: 5.5MW

2004 - Scroby Sands, off Great Yarmouth
One of the UK’s first operational commercial-scale offshore wind farms
Turbines: 30
Hub height: 68m
Power: 60MW

2007 - Stags Holt, Cambridgeshire 
Onshore wind farm
Turbines: 9
Hub height: 78m
Power: 18MW


2010 - Robin Rigg, Solway Firth
The first commercial offshore wind farm in Scottish waters
Turbines: 58
Hub height: 80m
Power: 174MW

2010 - Haswell Moor, Country Durham
Onshore wind farm
Turbines: 5
Hub height: 69m
Power: 10.2MW

2011 - Great Eppleton, Sunderland
Onshore wind farm
Turbines: 4
Hub height: 69m
Power: 8.2MW

2011 - Butterwick Moor, County Durham
Onshore wind farm
Turbines: 10
Hub height: 69m
Power: 20.5MW

2012 - Tweenbridge, Doncaster
Onshore wind farm
Turbines: 22
Hub height: 80m
Power: 44MW

2012 - Rosehall, Highlands
Onshore wind farm
Turbines: 19
Hub height: 59m
Power: 24.7MW

2013 - London Array, Thames Estuary 
At the time the world’s largest offshore wind farm
Turbines: 175
Hub height: 87m
Power: 630MW

2014 - Camster, Highlands
Onshore wind farm
Turbines: 25
Hub height: 80m
Power: 50MW

2015 - Humber Gateway, off the Holderness coast
Offshore wind farm
Turbines: 73
Hub height: 80m
Power: 219MW

2017 - Ovenden Moor, Yorkshire
Onshore wind farm repower
Turbines: 9
Hub height: 60m
Power: 18MW 

2018 - Rampion, Sussex Coast
The first wind farm off the UK's south coast
Turbines: 116
Hub height: 84m
Total nominal power: 400MW

Where the renewable energy for our customers' homes and businesses comes from

*Based on E.ON average electricity consumption


Biomass is the second largest source of renewable energy in the world. Our two biomass sites, Steven’s Croft near Lockerbie and Blackburn Meadows in South Yorkshire, generate enough electricity to power more than 100,000 homes combined, fuelled either by locally sourced soft wood or waste wood that would otherwise go to landfill.

Providing clean energy through renewable sources

We're fully committed to combating the effects of climate change and in helping the UK meet its zero-carbon targets. Part of that is in providing our customers with electricity backed by renewable sources so they can begin their own journey into the future energy world.

On behalf of our customers we source more than 1.8GW of electricity from renewable sites around the UK, enough to provide energy to nearly 1.7 million homes. The future of energy is smart, personalised and sustainable, which is why we are working with our customers at home, in business and across entire communities to develop new solutions and opportunities, working together to create that new energy world.

See what we can offer your business in terms of renewables and sustainability by visiting our Go Greener page.

Blyth offshore wind farm

blyth wind farm turbines

The UK’s first offshore wind farm, built one kilometre off the Northumberland coast in 2000 and decommissioned in 2019. When in operation, the two 2MW turbines generated enough power to supply over 2,000 homes and saved 4,520 tonnes of carbon dioxide from entering the atmosphere each year.

Blyth provided a pioneering contribution to renewable technology and lay the foundation for a further 600 offshore wind turbines installed by E.ON in the seas of northern Europe. Since the sites construction, the area has become a valuable testing ground for offshore construction, operations and maintenance and is today a hub for offshore innovation and development.

Stags Holt wind farm

stags holt wind farm

This 18MW site near March in Cambridgeshire went into operation in 2007 and has the capacity to supply around 10,000 households with electricity, saving over 2,300 tonnes of carbon emissions each year each year.

Ovenden Moor onshore wind farm

ovenden moor wind farm

A joint venture between E.ON and Energy Power Resources Ltd, located near Halifax in West Yorkshire, Ovenden Moor was repowered in 2017 when the original wind farm which had supplied power for over 22 years was decommissioned.

With the development in technology since the site was first built, the original 23 turbines were replaced with nine new turbines capable of producing twice as much power.

Humber Gateway offshore wind farm

humber gateway wind farm

In spring 2015 this 73 turbine, 219MW project located 8km off the Holderness coast began generating electricity two months ahead of schedule.

Construction of the site helped bring significant investment to the area as E.ON invested £4m in transforming a neglected derelict site at Grimsby Fish Docks into the wind farm’s Operation and Maintenance base and in improving the surrounding quayside for its vessels.

Today the site provides enough power for around 170,000 homes, equivalent to around one and a half times the size of Hull.

Holmside, Harehill and High Volts

Holmside wind farm

Located in County Durham, Holmside, Harehill and High Volts were all commissioned in spring 2004. At the time of their constructions, these wind farms boasted the most powerful wind turbines in the UK, which were transported from Hartlepool docks in sections on vehicles up to 50m long.

A locally based company, AMEC Wind Services, developed the site and also helped manage the project during construction. 

Robin Rigg offshore wind farm

Robin Rigg wind farm

Completed in 2010, Robin Rigg was the first commercial wind farm to be constructed in Scottish waters.

The 174MW £325m project is located in the Solway Firth a sandbank off the south west coast of Scotland between Galloway and Cumbria.

Camster onshore wind farm

camster onshore wind farm

Located in Caithness in the Scottish Highlands, Camster became operational in 2014. The 25 turbine, 50MW site has the capacity to supply over 40,000 homes and save around 55,000 tonnes of carbon dioxide over its lifetime. 

Rampion offshore wind farm

rampion wind farm

Opened in 2018, the Rampion wind farm sits 13km off the Sussex coast and generates enough energy to power about 350,000 homes. 

After a three-year construction period, its 116 turbines, cover an area larger than Guernsey. 140km of cables are buried under the seabed to connect the turbines and to carry the power back to shore. 

Scroby Sands offshore wind farm

scroby sands from the beach

Commissioned in 2004, Scroby Sands was the first UK commercial offshore wind farm to be given consent.

Consisting of 30 turbines, the £75m project located 3km off the coast of Great Yarmouth generates enough electricity to power over 40,000 homes. 

Along the esplanade a visitor centre attracts around 30,000 visitors each year who come to enjoy the interactive activities and displays and learn about renewable energy.