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RES is the world’s largest independent renewable energy company. At the forefront of the industry for over 40 years, RES has delivered more than 23GW of renewable energy projects across the globe and supports an operational asset portfolio exceeding 12GW worldwide for a large client base. RES employs more than 2,500 people and is active in 14 countries working across onshore and offshore wind, solar, energy storage and transmission and distribution.
operational assets supported
Driven by our vision to create a future where everyone has access to affordable zero carbon energy.
We leverage decades of experience and our industry-leading expertise to deliver results for our clients that surpass expectations.
We're the ideal partner for renewable investors, asset owners, utility companies, commercial and industrial clients, project developers and communities seeking renewable energy solutions.
We exist to serve our clients - they are at the heart of everything we do. Our approach means we deliver projects that meet the needs of the modern energy market.
We have a passion for what we do, to create a future where everyone has access to renewable energy.
In the markets where we operate, our passion helps us create commitment and resilience.
We are accountable for what we do. We are motivated and empowered to deliver what we are responsible for.
With accountability and trust, decisions are made faster, leading to more agility in our markets.
We work closely with our suppliers, with our clients and with our colleagues regionally and globally to share knowledge and skills.
By collaborating we unleash new opportunities, new ideas and improve results.
Excellence is defined by our clients.
We strive for excellence by talking to our clients, understanding what they need and surpassing their expectations.
These values produce the cultural soil from which our strategy can take root to create growth. They are a guiding force in everything we do and we showcase them to the people around us by demonstrating them in the way we go about our daily work.
We've included some of our key milestones in this timeline and look forward to adding many more in the years ahead. Click on the boxes below to look into our achievements in detail.
RES completed construction of 2.2GW of new renewable projects including Haut du Saule Wind Farm in France, the Southern Oak Solar Project in the USA, Murra Warra I Wind Farm in Australia and Solwaybank Wind Farm in the UK.
Construction began at Craiggore, our first UK subsidy-free wind farm.
5.5GW operational assets supported
Royal Caribbean signs PPA, taking RES' corporate PPA portfolio over 1GW.
Construction began on the Murra Warra Wind Farm in Australia, which, when fully constructed, will be one of the largest in the southern hemisphere.
Broxburn Energy Storage energised, meaning RES' global storage portfolio reached 300MW.
with the portfolio of developed and/or constructed increasing to over 13 GW, displacing 17 million tonnes of carbon each year.
with companies including General Mills, Telstra, Puget Sound and General Motors.
Australia’s third largest wind farm has 75 turbines and a capacity of 240 MW.
for utility scale energy storage.
to power its data centres from the Bluestem wind farm developed and constructed by RES.
integrated with solar park in Somerset for Western Power Distribution.
in the third round of the French tender.
totaling 39.6 MW (15.6 MWh) in Illinois, US.
A speciality electrical contractor, to supplement our transmission works.
with US electric utility for the RES-developed 149 MW Deerfield wind project.
in Colorado, US, one of the largest solar facilities east of the Rocky Mountains.
in Ararat, Australia, third largest in the Southern hemisphere.
became operational in Ohio, US.
Developed and constructed totalling 810 MW.
in Texas, US
214-mile (345 km), 230 kV.
having provided development, engineering, & construction services to Centrica for this project.
Developed RESolve energy management system.
First to provide met mast O&M services.
St Brieuc development in Brittany, France
10 MW Rutley solar project.
Constructed in Webberville, Texas, US.
Operation of first solar project in France.
Havsnäs wind project, the largest onshore wind project in Sweden at the time.
awarded to Dr. Ian Mays, RES CEO, by the European Wind Energy Association.
Began development of wind and solar projects.
to develop and complete Centrica's 194 MW Lynn and Inner Dowsing offshore wind farm.
at British Renewable Energy Awards.
in creating sustainable buildings by integrating renewable generation and energy saving technologies.
10 MW Hornberget wind project.
60 MW Whirlwind wind project in Texas.
Developed at Pampilhosa da Serra, Portugal.
for redevelopment of RES headquarters, powered by renewable energy.
Start development of renewable energy projects.
Began development of both offshore wind projects on behalf of Centrica.
Wigton wind project in Jamaica.
On the Plateau Ardechois.
63.7 MW Nine Canyon wind project built.
by the Royal Academy of Engineering for Dr. Ian Mays, RES CEO for pioneering work in wind energy.
Largest wind project in Ireland.
Largest wind project in France.
13.2 MW Lendrum's Bridge and 26 MW Altahullion wind projects. RES & B9 Energy double N. Ireland's wind energy capacity.
278 MW King Mountain wind project in Texas.
60 MW Cameron Ridge wind project, developed & constructed.
California, US. Constructed for a third-party firm.
Designed & built in the UK and installed in Slievenahanaghan, Co. Antrim.
Designed & installed in the UK.
Operational at Carland Cross in Cornwall.
Moved beyond designing turbine technology to developing UK wind projects.
A small team within Sir Robert McAlpine began innovative wind turbine engineering.