Data Centre Build News & Insights

Castleforge, Galaxy to expand £500m Redhill campus

Real estate investor Castleforge and Galaxy Data Centers, a data centre operator and advisory firm, have secured planning consent to expand their Redhill data centre campus, situated near London, with a new 15MW facility set to be developed. Approved by Reigate & Banstead Borough Council, the project will add four data halls as part of a two-storey building on the existing site at Foxboro Business Park. The expansion forms part of a wider programme that could see total investment in the campus reach around £500 million. The Redhill site, located on a 3.1-hectare industrial estate, will also include an office building and is designed to support future growth in digital infrastructure capacity across the London market. The project follows a previous investment of more than £100 million in the campus in 2024, with a further £200 million expected as part of the next phase. A focus on low-carbon data centre development The new facility is designed to achieve a BREEAM ‘Very Good’ rating and will incorporate low- and zero-carbon technologies. Waste heat generated by the data centre will be reused on site, with infrastructure in place to enable future export to a nearby residential heat network. The expansion reflects continued demand for data centre capacity in and around London, driven by AI, cloud computing, and hybrid workloads. Limited power availability and planning constraints have made existing sites increasingly important for new development. Mike Adcock, Head of Investments at Castleforge, says, "Securing planning consent for our new development at Redhill is a major milestone in our plans to deliver high-quality, sustainable digital infrastructure to one of the world's most important data centre markets." Paul Leong, Chief Financial Officer and Partner at Galaxy Data Centers, adds, "This planning consent is a pivotal step in realising the long-term vision we set out when we acquired [the Redhill site] alongside Castleforge." The Redhill campus currently spans 11,800m² across three buildings and serves customers including enterprises in financial services and AI. The site benefits from access to renewable energy, low-latency connectivity to hubs such as Slough and London Docklands, and available space for further expansion. Construction timelines have not yet been confirmed, with further development milestones expected to be announced.

Schneider, GreenScale partner on new operational architectures

Global energy technology company Schneider Electric has partnered with GreenScale, a developer of hyperscale data centre campuses, to support the development of data centre sites across Europe, focusing on AI-ready infrastructure and operational design. Under the agreement, Schneider Electric’s Secure Power and Services divisions will provide engineering and design consultancy, contributing to the development of new operational architectures for data centres. The collaboration combines Schneider Electric’s infrastructure expertise with GreenScale’s experience in data centre operations, software, and digital twin technology. The aim is to improve deployment timelines, operational predictability, and maintenance processes through the use of automation and data-driven tools. With application in mind, GreenScale is developing data centres in regions with available power and renewable energy potential, with projects intended to support long-term regional investment and infrastructure growth. A focus on automation and operational efficiency The partnership includes the use of predictive analytics, condition-based maintenance, and digital twin integration to support performance and reliability across sites. These approaches are intended to reduce operational risk, improve maintenance planning, and support consistent performance, particularly in remote or emerging locations. The companies are also working on reference architectures designed to incorporate automation and monitoring from the outset, enabling improved visibility and control across infrastructure systems. Dan Thomas, CEO at GreenScale, says, "As demand for AI, Cloud and HPC accelerates in Europe, data centre operators must rethink how facilities are designed and managed." Thierry Chamayou, Vice President, Cloud and Service Providers, Europe at Schneider Electric, adds, "By combining expertise from our Secure Power and Services divisions, we are helping to create a resilient, AI-ready infrastructure platform." The collaboration also includes the integration of monitoring and control systems that connect physical infrastructure with digital platforms, supporting high-density AI and cloud workloads. For more from Schneider Electric, click here.

Legrand cooling selected for 'Europe’s largest AI campus'

Legrand, a French multinational infrastructure products manufacturer, has been selected by Start Campus, a designer, builder, and operator of sustainable data centres, to supply cooling technology for a large-scale data centre development in Sines, Portugal. The project forms part of a planned 1.2GW campus designed to support AI, cloud computing, and high-performance workloads. Legrand will deploy its rear-door heat exchanger technology, developed by its USystems brand, to provide rack-level cooling across the site. The Sines campus is powered by renewable energy and is targeting a power usage effectiveness (PUE) of 1.1 and a water usage effectiveness (WUE) of 0, using seawater cooling to support high-density environments. Robert Dunn, CEO of Start Campus, says, "These are very technically challenging projects, so we need to work with the best in the business to meet those complex challenges." Cooling technology for high-density workloads The cooling system operates at rack level, removing heat directly at source by cooling exhaust air before it enters the wider data hall. This approach reduces reliance on traditional air-cooling methods and supports higher rack densities. Legrand states that the system can reduce cooling-related power consumption compared with conventional approaches, whilst also maintaining stable thermal conditions. The technology additionally adjusts cooling capacity in real time to match operational requirements, supporting efficiency and performance across the facility. Rita Lourenço, Key Account Manager - Critical Power at Legrand, notes, "The full lifecycle partnership [...] includes knowledge sharing, maintenance support, proactive problem detection, and long-term collaboration beyond commissioning." The two companies state their partnership includes ongoing support and maintenance, alongside the initial deployment of the cooling systems. For more from Legrand, click here.

Hudson IX expands 60 Hudson Street capacity

Hudson InterXchange (Hudson IX), a New York-based carrier-neutral colocation and interconnection data centre provider, has added a new 1MW data hall at 60 Hudson Street in New York, USA, increasing available capacity at one of the city’s most connected carrier hotels. The facility is now operational and available for high-density colocation deployments. A second 1MW data hall is scheduled to come online in the second quarter of 2026, with longer-term plans to expand total capacity at the site beyond 10MW. The expansion comes as data centre space and power availability remain limited across the New York City market, particularly in locations with established network connectivity. 60 Hudson Street continues to act as a key interconnection hub, hosting more than 300 carriers and service providers. The latest development introduces additional capacity within this environment, enabling organisations to deploy infrastructure close to network providers and end users. Additional capacity in a constrained market Hudson IX is among a small number of operators currently adding new capacity within the building, supported by available power for future deployments. The new data hall is designed to support a range of requirements, including network providers, content delivery networks, cloud platforms, enterprises, and financial services organisations. The company notes it can accommodate both standard and high-density installations, including workloads linked to AI and other compute-intensive applications. Atul Roy of Hudson InterXchange says, "This expansion is the result of our remarkable team and its commitment to delivering a large, world-class, high-performance data centre platform with scalable solutions ranging from single cabinets to bespoke cages." Further expansion is planned as part of a wider roadmap to increase total capacity at the site beyond 10MW, supporting continued demand for colocation and interconnection in the New York metro area. For more from Hudson IX, click here.

Design strategies for efficient, high-performance data centres

The rapid expansion of artificial intelligence workloads is placing unprecedented demands on data centre infrastructure. As computer densities increase and operational expectations tighten, the need to balance performance with energy efficiency and carbon reduction has become more urgent. This shift is driving a re-evaluation of how data centres are designed, particularly in relation to cooling strategies and overall resource use. Data centres are now a critical component of global infrastructure, supporting cloud services, digital platforms, and AI applications. With increasing digitalisation, energy consumption associated with these facilities continues to rise. In the UK and globally, regulatory and market pressures are also evolving, with greater emphasis on energy performance, carbon reporting, and long-term sustainability targets. Within this context, various industry reports are suggesting that: • Data centres are estimated to account for approximately 1–1.5% of global electricity consumption• High-density AI workloads can exceed 30–80 kW per rack, significantly increasing cooling demand• Leading facilities are targeting power usage effectiveness (PUE) values of 1.2 or lower Efficient cooling system strategies As computational loads increase, cooling systems are under growing pressure to maintain stable operating conditions without excessive energy use. Traditional approaches that rely heavily on mechanical cooling are becoming less viable due to their high energy intensity. This challenge affects operators, developers, and designers, particularly as expectations around efficiency and environmental performance continue to rise. BSE|3D, a UK building services engineering and consultancy practice, says it works with organisations navigating these challenges by applying a performance-led design approach from the earliest project stages. The company notes that it has observed that early integration of simulation tools allows for more effective alignment between building form, system design, and operational performance. Solutions that focus on reducing cooling demand at source while optimising system efficiency can significantly improve outcomes. This includes evaluating environmental conditions, refining building parameters, and developing strategies that prioritise low-energy operation. A key approach involves enabling a cooling profile where approximately 70% of annual demand can be met through low-energy systems such as economisation and adiabatic processes, with mechanical systems supporting peak conditions and operational resilience. This reduces reliance on continuous compressor use and supports improved overall performance. Kriti Gupta, Sustainability Consultant at BSE|3D, explains, “As data centre loads continue to increase, the industry needs to move beyond conventional cooling approaches. By prioritising low-energy strategies and validating them through simulation, it is possible to reduce energy demand while maintaining performance and resilience. Early-stage design decisions play a critical role in achieving this balance.” Data centres are expected to play an increasingly significant role in supporting digital infrastructure. As their impact grows, so too does the importance of designing them in a way that responds to both operational requirements and environmental considerations.

1547's Orangeburg data centre reaches full occupancy

Harrison Street Asset Management and fifteenfortyseven Critical Systems Realty (1547), a developer and operator of interconnected data centres and carrier hotels across North America, have completed the latest expansion phase of their Orangeburg data centre in New York, with the facility now fully leased and operating at near-full utilisation. The colocation site, located around 18 miles (28.9 kilometres) north of Manhattan, provides capacity for tenants requiring proximity to New York City and access to established connectivity routes. Originally supporting 3.7 MW of IT load when acquired in 2021, the joint venture has since added approximately 14 MW of capacity while increasing density across the existing 232,000ft² (21,553m²) facility. A further 12MW utility feed is currently under development, with additional long-term expansion plans in place. The site has outline approval for a new 230,000ft² (21,367m²) building, supported by a planned 60MW on-site substation. Expansion driven by connectivity demand The Greater New York data centre market remains one of the largest in the US, supported by multiple terrestrial fibre routes and subsea cable landings along Long Island and New Jersey, enabling international connectivity, particularly with Europe. The Orangeburg facility now supports around 18 MW of IT load and has reached near-full utilisation following recent leasing activity. Demand is primarily driven by financial services organisations, including banks, trading platforms, and hedge funds, which require low-latency connectivity to Manhattan. Michael Hochanadel, Head of Digital Assets at Harrison Street Asset Management, comments, "The Orangeburg data centre exemplifies our approach to digital infrastructure investing, pairing strategic locations with disciplined demand-driven expansion." J Todd Raymond, Chief Executive Officer and Managing Director of 1547, adds, "From day one, our focus has been on delivering capacity in direct response to customer demand while maintaining the performance and reliability our clients depend on." Since 2018, Harrison Street Asset Management’s digital investment platform has committed more than $6.5 billion (£4.8 billion) to data centre and connectivity infrastructure, including powered shells, carrier hotels, colocation facilities, and dark fibre networks. For more from 1547, click here.

€50bn Croatia AI data centre investment announced

Pantheon Atlas, a transatlantic-led investment group, has announced plans to develop a hyperscale AI data centre and innovation campus in Topusko, Croatia, with total investment expected to exceed €50 billion (£43 billion). This is reportedly the largest investment of its kind in Croatian history and among the largest private US investments in Europe. The project, known as Pantheon AI, is intended to address growing demand for AI-driven data centre capacity across Europe, where availability of power, land, and construction resources remains constrained. The development is being delivered by a transatlantic investment group combining US capital with local expertise in Croatia, including regulatory and grid access experience. The announcement was made at the Three Seas Initiative Summit in Dubrovnik. Pantheon AI is designed to meet NVIDIA’s gigawatt-scale AI factory standards and is expected to offer high levels of availability, exceeding Tier IV benchmarks. Jako Andabak, Founding Partner at Pantheon AI, comments, "Pantheon AI is a signal to the world that Croatia is open for the highest-caliber investment. "This project is the culmination of years of work to bring world-class digital infrastructure to Croatia." Addressing European data centre capacity Across Europe, established data centre markets are operating with limited vacancy, while grid connection delays continue to affect new developments. Demand in Central and Eastern Europe is expected to increase significantly by 2035, particularly as AI workloads expand and regulatory requirements encourage data to be stored within EU borders. Ryan Rich, Managing Partner at Pantheon AI, explains, "We have assembled a transatlantic partnership to solve one of the most pressing challenges in global digital infrastructure: enabling hyperscale operators to meet AI-driven demand at scale." The project is expected to support up to 5.2 GW of renewable energy integration into Croatia’s grid. It will include an on-site solar installation and battery storage, alongside multiple fibre connections across European network corridors. Joshua Volz, Special Envoy for Global Energy Integration at the US Department of Energy, says, "Critical infrastructure of this scale, built by the private sector responding to real market demand, is exactly how US interests and European security advance together." Construction of the campus is scheduled to begin in early 2027, with operations expected to start in the first quarter of 2029. The initial phase represents a €12 billion (£10 billion) investment, with additional funding anticipated as tenants deploy infrastructure. The campus will have a planned capacity of 1GW, including 800MW of usable IT load, and will span approximately 310 acres (1.2 km²), with expansion potential. The development is expected to create around 1,500 permanent roles, alongside 3,000 jobs during construction.

Data centres 2026: Energy efficiency and sustainability

Prospero Events Group says it is proud to present the 3rd Energy Efficiency & Sustainability in Data Centers 2026 conference, taking place on 26–27 May 2026 in Amsterdam, the Netherlands. The event will bring together senior decision-makers, technology innovators, and sustainability leaders to explore how data centres can become more energy efficient, resilient, and environmentally responsible. Event presentation topics and speaker panel As AI adoption, hyperscale growth, and electrification continue to increase power demand, the conference will focus on the strategies needed to balance performance with sustainability. Key discussion areas include: • Renewable energy integration• Cooling efficiency and uptime• Waste heat reuse and district heating• On-site energy generation and energy resilience• ESG integration across the data centre lifecycle• Grid constraints and power availability• AI-driven optimisation and future-ready infrastructure The conference will feature expert insights from leading organisations, including: • Günter Eggers, Director Public, NTT Global Data Centers• Vladimir Prodanovic, Principal Program Manager, NVIDIA• Pedro Filipe Barreiros, Data Center Operations, Google• Stijn Grove, Managing Director, Dutch Data Center Association• Martijn Van Wijngaarden, Global Energy Transaction Manager, Iron Mountain• Simon Muskett and Olalekan Salami, Digital Realty The event offers a valuable platform for collaboration amongst operators, investors, technology providers, and sustainability experts committed to building the next generation of low-impact, high-performance data centres. Explore the complete speaker lineup, session topics, and key discussion points shaping the future of sustainable data centres. To register and download the event agenda, click here.

Veolia, Amazon develop data centre water reuse system

Veolia, a French multinational environmental services company, is working with US technology and e-commerce company Amazon to introduce reclaimed water for cooling at a data centre in Mississippi, USA, as part of efforts to reduce water use and support long-term water resilience. The facility, expected to be operational in 2027, will be the first Amazon data centre in the state to use treated wastewater for cooling processes. The system will convert effluent from nearby treatment plants into water suitable for industrial use. Once fully operational, the project is expected to reuse more than 83 million gallons (313 million litres) of potable water each year, reducing demand on local groundwater and drinking water supplies. Veolia will deploy modular, containerised treatment systems designed for scalable use. The approach allows similar installations to be introduced at other data centres where conditions allow. Turning wastewater into cooling power for data centres The collaboration also includes the use of artificial intelligence to improve water treatment processes. Amazon Web Services (AWS) will support Veolia in developing systems for real-time optimisation, predictive maintenance, and operational analysis. These tools are intended to improve efficiency and reduce resource consumption across water treatment operations. Estelle Brachlianoff, Chief Executive Officer at Veolia, comments, “We are delighted to collaborate with Amazon to secure its water needs in Mississippi while protecting the local community's resources. This is environmental security in action. "By combining Veolia’s water expertise with Amazon’s AI technologies, we’re transforming data centres into engines of innovation for sustainability. This solution builds on our newly launched offering for data centres.” Will Hewes, Global Water Stewardship Lead at Amazon, adds, “Through our collaborative work on AI applied to water treatment, Veolia will be able to further drive innovation and enhance the efficiency of on-site teams, thanks to automated analytics, actionable recommendations, optimised inventory management, and streamlined maintenance. "We’re pleased to join forces with Veolia to advance more sustainable water use strategies while helping it pioneer more efficient water treatment solutions for customers worldwide.” The project, Amazon says, forms part of its wider aim to become water positive across its direct data centre operations by 2030.

Pure DC expands its Middle East data centres

Pure Data Centres Group (Pure DC), a designer, developer, and operator of hyperscale data centres, has confirmed further investment in the Middle East, including a capacity increase at its Abu Dhabi campus and new development plans in Saudi Arabia. The company has received final approval from TAQA to expand IT capacity at its AUH01 site in Abu Dhabi from 41MW to 48MW. The increase has been achieved through design optimisation and the addition of new power infrastructure, supporting additional demand including AI workloads. The AUH01 campus is located on a 16-acre (64,749m²) site and is designed for phased expansion. One 20MW building is already operational, with initial data hall capacity delivered to a hyperscale customer in 2025. The site uses a combination of air and liquid cooling to support different deployment requirements. Pure DC has also matched 100% of the electricity used at AUH01 in 2025 with International Renewable Energy Certificates (I-RECs), sourced from solar generation at the Mohammed bin Rashid Al Maktoum Solar Park in the UAE. This approach aims to support reduced carbon intensity for operations and contribute to market-based Scope 2 emissions targets. Regional growth plans Alongside its UAE operations, Pure DC has entered a joint venture with Dune Vaults to develop a hyperscale data centre in Riyadh, Saudi Arabia. The RUH01 campus will be built on a 270,000m² site, with an initial design capacity of 57.6MW across two buildings. The development has potential to scale beyond 100MW as demand increases. Gary Wojtaszek, Executive Chairman and Interim CEO at Pure DC, comments, “We remain deeply committed to the Middle East and grateful for support we continue to receive from authorities across the UAE and KSA in the current climate. "Our sites are delivering uninterrupted service, reflecting the resilience and reliability that underpins our presence in the region. While the current macro-political environment may have slowed sector investment, digital demand remains unchanged. "The region’s ambitious national visions recognise the transformation enabled by digital government, enterprise modernisation, and a future-ready workforce. Pure DC is fully committed to contributing to that future through the continued development and operation of world-class digital infrastructure across the Middle East.” For more from Pure DC, click here.