Glesys reports stronger efficiency and circularity in 2025 sustainability report

Falkenberg, Sweden, 6 July 2026. Glesys, a leading Nordic cloud and infrastructure-as-a-service (IaaS) provider, today published its 2025 Sustainability Report, highlighting continued progress in building more resource-efficient digital infrastructure. Prepared in accordance with the European Sustainability Reporting Standards (ESRS), the report outlines the company's environmental and social performance across its data centers in Sweden and Finland.

As demand for AI, cloud services and digital infrastructure continues to grow, Glesys has focused on reducing the environmental impact of its operations through energy efficiency, circular hardware management and heat recovery – demonstrating that sustainable infrastructure and business growth can go hand in hand.

"Building and operating our data centers sustainably, from the energy they consume to how efficiently they run, is fundamental to delivering reliable infrastructure built to last," says Glenn Johansson, CEO and founder of Glesys. "The demand for digital infrastructure keeps growing, and so does our responsibility to build and operate it as efficiently as possible. This year's report shows how we're continuing to improve, whether that's through better energy efficiency, extending the life of our hardware, or recovering more waste heat."

Highlights from 2025 include:

• 100% renewable electricity: All Glesys data centers run on 100% renewable electricity, backed by Guarantees of Origin, to support lower-carbon digital infrastructure.

• Industry-leading energy efficiency: The group's weighted-average power usage effectiveness (PUE) reached 1.27, ahead of the European industry average of 1.47 and already below the EU's recommended 2030 target of 1.3.

• Extending hardware lifespan: Through in-house repair, refurbishment and component replacement, Glesys keeps servers in operation for up to 10 years – significantly longer than the industry norm of 3–5 years. This circular approach reduces electronic waste while lowering the environmental impact associated with manufacturing new equipment.

• Recovering waste heat for local communities: In 2025, Glesys reused 3,696 MWh of residual heat from its data centers, supplying district heating networks in Falkenberg and Stockholm and helping meet local heating demand.

"Sustainability in digital infrastructure is about continuously improving how we use resources," says Erik Rudenstam, Sustainability Controller at Glesys. "This year's report demonstrates steady progress across energy efficiency and circularity, alongside continued investment in expanding our heat recovery capacity, while reinforcing our long-term commitment to transparent and measurable sustainability work."

Looking ahead, Glesys remains committed to making its own operations climate-neutral by 2030, without relying on carbon offsets. As digitalization and AI continue to increase demand for computing capacity, the company will continue investing in solutions that improve efficiency, extend the life of critical infrastructure, and reduce environmental impact.

The full 2025 sustainability report is available here.