Summary
- WB Power Services is now operating fully under the Rehlko name after a transition following its August 2025 acquisition.
- The integration combines UK engineering, installation, commissioning, and service capability with Rehlko’s wider critical power platform.
- The move reflects rising demand for lifecycle power support as data centre loads, resilience expectations, and electrical complexity increase.
Rehlko has completed the integration of WB Power Services into its UK and EMEA platform, bringing the UK backup power specialist fully under the Rehlko name.
After Rehlko acquired WB Power Services in August 2025, the business operated through a dual brand transition before moving fully to the Rehlko brand from 1 June 2026.
The WBPS brand is due to be fully sunset by the fourth quarter of 2027, while the legal entity remains WB Power Services Ltd.
Rehlko says there are no changes to contracts, pricing, orders, services, points of contact, or day to day ways of working.
The former WB Power Services business adds UK engineering, installation, commissioning, and service capability to Rehlko’s wider critical power platform.
In data centre delivery, backup power depends on design input, factory coordination, site logistics, installation, commissioning, integration with switchgear and controls, test regimes, fuel arrangements, maintenance, spare parts, and emergency response.
The integration gives Rehlko a stronger UK operating base as AI workloads, larger campuses, longer electrical equipment lead times, and tighter availability expectations change the role of critical power suppliers.
Rehlko’s wider data centre power portfolio covers backup power, continuous power, uninterruptible power, energy storage, and lifecycle services.
Backup power is becoming a lifecycle service
Standby power has long been central to data centre engineering, although the design pressures around it have increased as IT loads grow and campuses become larger.
Generator systems still sit at the heart of many resilience strategies, but they now have to be assessed alongside UPS architecture, battery systems, grid constraint, emissions permitting, fuel logistics, control integration, and operational testing.
Procurement conditions have also changed, with transformers, switchgear, generators, and other electrical systems exposed to rising global demand and longer lead times.
Suppliers with deeper engineering and service capability can support programme level delivery, provided the integration is visible in project execution rather than branding alone.
The UK market gives the transition a clear operating test, because large data centre schemes are facing pressure around grid connections, planning, sustainability, and local resilience.
Backup power remains essential in that environment, although diesel runtime, testing frequency, emissions, fuel storage, and alternative fuels are receiving closer examination.
A larger integrated supplier can simplify coordination for contractors and consulting engineers where responsibilities are clear, technical support is consistent, and site teams retain practical lines of accountability.
Operators will judge the transition through delivery, since generator yards, switchgear rooms, fuel systems, and controls have to work under test and under fault conditions.
The WB Power Services integration puts Rehlko into a broader service role across design, build, commissioning, and maintenance, at a point when power resilience is becoming both a commercial and operational concern.
