RES

About RES

Company develops, builds, and operates wind, solar, and energy storage projects globally, providing asset management and O&M services for clean energy.

Key facts

Industry

Services for Renewable Energy

Company size

1,001–5,000 employees

Headquarters

Kings Langley, Hertfordshire, United Kingdom

Founded

1981

Revenue

$264M – $3.3BTamtam estimate

Website

res-group.com

LinkedIn

linkedin.com/company/res-group

Jobs at RES

• Assistant.e Ressources HumainesAvignon, Provence-Alpes-Côte d'Azur, France · Sep 7, 2026

RES in the news

• RES to deliver its RESolve Energy Management System for 200MWh BESS

  RES will deliver its energy management system for a 200MWh battery storage project in the UK, supporting TRIG's expansion in battery storage assets.

  solarpowerportal.co.uk · Oct 2, 2025
• RES secures three-year O&M contract for Cleve Hill solar project

  RES won a three-year O&M contract for the UK's largest solar project, Cleve Hill, which includes a major battery storage addition and marks a key milestone in UK solar development.

  solarpowerportal.co.uk · Sep 25, 2025
• RES wins contract to operate UK’s largest solar farm

  RES secured a three-year contract to operate the UK’s largest solar farm, Cleve Hill Solar Park, enhancing its clean energy portfolio and supporting the UK’s energy transition.

  theenergyst.com · Sep 25, 2025
• RES wins contract to operate UK's largest solar farm

  RES secured a three-year contract to operate and maintain the UK's largest solar farm, Cleve Hill, supporting the country's clean energy transition.

  energyglobal.com · Sep 25, 2025
• The European Commission added five new projects to the CB RES list

  Five new cross-border renewable energy projects were added to the EU's CB RES list, enabling them to seek funding, with projects spanning wind farms, heating decarbonisation, and offshore studies.

  ceenergynews.com · Sep 16, 2025