How is Rehlko Powering More Sustainable Data Centres?

Global energy resilience company Rehlko has published its 2026 Powering Impact Report to detail progress in embedding sustainability into reliable power solutions for the data centre sector. 

The report outlines how system engineering, lifecycle insight and digital tools assist operators in accessing power rapidly while retaining flexibility as the wider energy landscape shifts.

Data centre power demand is expanding against a backdrop of grid constraints. To manage this environment, facility operators require infrastructure solutions that balance deployment speed, mechanical reliability and data transparency. 

Rehlko approaches sustainability as a practical enabler that informs the specification, design and long-term optimisation of power systems. 

Powering infrastructure amid grid constraints

The report outlines how the Rehlko hardware portfolio supports resilient and fuel-flexible power architectures for mission-critical infrastructure. 

These power systems cater directly to data centres operating under demanding development timelines. Hardware architectures facilitate the modular integration of associated technologies. Supported integrations include battery energy storage systems, advanced controls and combined cooling, heat and power setups. The systems also offer mechanical compatibility with alternative fuels where appropriate for the site.

“Data centre customers are navigating a more complex set of power decisions than ever before,” says Brian Melka, President and CEO of Rehlko.

“Our role is to help deliver systems that are reliable when and where they’re needed, while working to improve the quality of information customers use to evaluate energy choices. 

“The Powering Impact Report reflects how we’re integrating sustainability insight directly into engineering, tools, and execution.”

Digital tools for carbon management

A central element of this engineering approach is the Power Impact Intelligence strategic platform. Rehlko developed this digital and interactive software solution to supply operators with decision-support insight regarding their hardware choices. 

The platform includes the Rehlko Backup Power | EPD Carbon Calculator. This specific tool grants direct access to verified Environmental Product Declaration data, permitting data centre developers to evaluate the embodied carbon of backup power systems at the individual product level.

The platform operates as a dynamic alternative to static reporting documents or disconnected data sets, helping developers implement informed infrastructure choices intended to lower facility carbon emissions. 

The company also launched the Rehlko Prime Power | Decarbonization Modeler to provide regionally informed, scenario-based insights. It enables customers to explore how various power system options compare against local energy conditions and available technology stacks.

“Our intent is to translate sustainability from insight into execution,” says Francis Perrin, Chief Brand and Sustainability Officer at Rehlko.

“Rather than setting abstract endpoints, we focus on system-level thinking, helping customers plan for reliability today while maintaining optionality over the life of their assets. 

“Power Impact Intelligence is one example of how we are helping to equip customers with data that is credible, transparent, and practical.”

Internal operations and future pathways

To support transitions to lower carbon operations over time, the company developed the Structured Transition Model. This framework provides immediate reliable power architectures alongside flexible long-term transition plans.

The company reiterates that actual performance and physical outcomes from these tools vary depending on specific application methods, operating conditions, regulatory requirements and other external factors.

Alongside the customer-facing data centre solutions, the 2026 Powering Impact Report documents measured progress across internal operations at Rehlko. The business recorded a 19.6% reduction in Scope 1 and 2 greenhouse gas emissions in 2025 when measured against a 2023 baseline. These results reflect historical performance and are calculated based on internally defined methodologies.

The firm reports that 81.2% of its operational waste was diverted from landfills during 2025. The document covers further topics including governance, safety, workforce and community issues, separating current performance from longer-term operational considerations.