In F2025, our Waterton and Chippenham sites in the UK achieved 100% renewable electricity. Through onsite solar generation and our own innovative energy management solutions, we reduced our Scope 2 location- and market-based CO2 emissions by 34%. This achievement significantly advances the progress of our near-term science-based targets under the Science Based Targets initiative and supports our UK operations’ target to achieve 100% renewable electricity by 2025.

This milestone represents a savings of 1,110 tCO2e1 in FY25, comparable to CO2e emissions from:

  • The average annual electricity use of more than 2,350 UK homes
  • The annual emissions of around 935 fuel-powered passenger vehicles
  • Burning more than 1 million pounds of coal

We first introduced photovoltaic solar panels at our Waterton IT services hub in Bridgend, which includes a data center and office space. In a single year, this initial rooftop installation saved 85 tCO2e. In 2023, we expanded the system by adding an additional 50 kilowatts of solar capacity. With this expansion, Waterton became home to the largest solar panel system on a commercial building in Wales, generating up to 390 kilowatt peak power (kWp) under ideal conditions.

The same year, we installed solar panels at the Chippenham office, which houses a Cyber Center and a Global Security Operations Center. This system generates an average of 172 megawatt hours (MWh) per year, reducing our reliance on the grid and lowering emissions by 15%.

We further improved energy efficiency and power optimization at Waterton using CGI DigitalTwin360, our proprietary technology, contributing to additional emissions reductions.

We fulfill any remaining electricity needs through hydroelectric power sourced from a retail supplier, ensuring all electricity consumed at our Waterton and Chippenham facilities is renewable.

Across our UK facilities, we use the arbnco AI-powered building management system to monitor and optimize energy performance. Sub-meters installed at both Waterton and Chippenham provide half-hourly energy consumption data, enabling targeted reductions. We also use this platform to model the costs and carbon savings of potential renewable energy projects (solar, wind and battery storage) across our Waterton, Chippenham, Leatherhead and Reading sites.

Our procurement and project teams continue to prioritize the purchase of energy-efficient equipment, further supporting CGI’s sustainability objectives.

Waterton and Chippenham hold ISO 14001:2015 (environmental management systems) and 9001:2015 (quality management systems) certification, with ISO 50001 (energy management) to follow in F2026.


[1] tCO2e: Metric tons of carbon dioxide equivalents, based on Greenhouse Gas Protocol.