Colt Data Centre Services (Colt DCS), a global provider of AI-ready, hyperscale and large enterprise data centre solutions, has announced the publication of its fourth annual Sustainability Report, highlighting a 27% reduction in greenhouse gas emissions across Scope 1, 2 (market-based), and 3 compared to the 2019 base year. The report underscores the company's commitment to sustainable growth in India and its global operations.
Key Achievements in Sustainability
According to the report, Colt DCS achieved 100% renewable electricity in Scope 2 through renewable energy certificates, with a 90% renewable share of total energy consumption across Scopes 1, 2, and 3. The company also advanced its Global Reference Design (GRD), embedding lower-carbon materials, energy-efficient systems, and near-zero wastewater cooling into new developments, including those supporting India's digital infrastructure needs.
The report outlines Colt DCS's global sustainability performance over 2025 and includes data across environmental, social, and governance (ESG) material topics, identified through a Double Materiality Assessment conducted in 2024.
Decarbonizing Data Centers in India
The 27% reduction in greenhouse gas emissions reflects Colt DCS's continued commitment to decarbonizing the design, development, and operation of its data centres, including those supporting growing digital and AI-driven demand across India's key markets of Mumbai and Chennai. Nikhil Parate, Head of Energy and Sustainability India at Colt DCS, stated, "We are seeing strong progress in reducing global emissions while supporting the rapid growth of digital and AI-driven demand across India's key markets. Sustainability is built into how we design and operate our facilities, from the use of lower carbon materials and energy-efficient systems to advanced cooling approaches that significantly reduce water impact. By combining our global standards with local expertise, we remain committed to delivering capacity at speed while staying on track towards our 2045 net zero target."
Global Reference Design Innovations
Building on its approach, Colt DCS advanced its Global Reference Design (GRD) in 2025, further developing a repeatable, standardized blueprint flexible enough to adapt to local requirements while maintaining consistency in core principles across future developments. The GRD embeds energy-efficient systems, lower embodied carbon materials, and near-zero wastewater cooling technologies into all new data centre architecture, targeting lower annualized PUEs and waste diversion rates of 75% in construction and demolition and 90% in operations.
Addressing water use—a growing area of focus for the data centre sector in India—the GRD incorporates chilled water systems using low-GWP refrigerants with near-zero water consumption, alongside rainwater harvesting for non-potable indoor use. Closed-loop liquid cooling systems circulate coolant in a sealed loop, transferring heat without relying on evaporation.
Community and Environmental Initiatives
In India, Colt DCS colleagues participate in a range of environmental activities aimed at improving local surroundings, including litter collection and tree-planting initiatives in Mumbai. These efforts contribute to creating a cleaner and greener environment while promoting awareness of sustainability and biodiversity within the workplace and surrounding communities. The company also uses STP water for landscaping and has an on-site organic waste composter.
About Colt DCS
Colt DCS designs, builds, and operates data centres for global hyperscalers and large enterprises. Its global portfolio includes 15 operational data centres, with an additional 12 sites under development across nine cities in the UK, Europe, and the APAC region. With over 25 years of experience in the data centre industry, Colt DCS aims to be the most trusted and customer-centric data centre operator in the market. The company has set comprehensive near- and long-term Science Based Targets to cut emissions in line with the SBTi's latest Net Zero Standard.
