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For over 30 years, RES has built up the in-house expertise to develop, construct, and operate onshore and offshore wind farms worldwide

Worldwide wind projects

We have been involved in researching renewable technologies since the 1980s, and we built our first wind farm in Cornwall, UK, in 1992. Within 10 years we had completed the largest wind farm in the world at the time, in Texas. Today, with one of the largest project portfolios in the industry and an asset management portfolio exceeding 2 GW, we continue to provide partnerships and services to the world's fastest growing energy sector.

While our projects are designed to optimize power generation at the most competitive prices, we also seek to maintain our reputation for providing a sensitive and consultative approach to the environment and communities.

Our experts are with you every step of the way

Our in-house skills and experience are extensive, from commercial and legal to technical and engineering expertise. RES can safely oversee projects from development through planning and financing phases, to construction and operation.

Over 5000 Wind Turbines

Over 5,000

RES - Large Portfolio

Cornwall, UK, 1992

>2 GW

Assets Managed

Over 20 years experience offshore

Offshore wind

RES has built its extensive in-house experience on participation in UK offshore rounds 1, 2, and 3, and in the development of projects throughout Europe and the United States. This experience and expertise is available to asset owners worldwide. 

Visit our Offshore website to find out more about our integrated services for asset management and maintenance services.

Over 5 GW

development expertise

News and Events


August 1, 2017

RES Announces Sale of Cactus Flats Wind Facility

BROOMFIELD, CO – Renewable Energy Systems (RES), a leader in the development, engineering, construction, and operations of wind, solar, transmission, and energy storage project…

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July 6, 2017

RES Receives Notice to Proceed on Construction of Copenhagen Wind Project

Project will be RES’ first wind project in the State of New York.

BROOMFIELD, CO – Renewable Energy Systems (RES), a leader in the development, engineerin…

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General Mills Continues Clean Energy Leadership; Signs Wind Power Agreement


June 08, 2017 9:00am

MINNEAPOLIS, June 8, 2017 /PRNewswire/ -- General Mills has taken another step toward its climate goal with the signing of a virtual 15-year p…

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