Critical Power Solutions for Colocation Data Centres

Keeping multi‑tenant environments energised, resilient and commercially protected

In a colocation environment, power isn’t just an engineering concern, it’s a commercial contract. Even a momentary loss of power supply can trigger SLA breaches, customer downtime, reputational damage and significant financial penalties. With tenants running mission‑critical workloads and hyperscale‑level redundancy expectations, your power infrastructure must operate with absolute consistency.

At Rehlko, we are one of the few OEM’s to engineer, deliver and maintain critical power systems designed specifically for the unique pressures of colocation data centres. Our solutions support every stage of the development lifecycle, from early power feasibility, strategy and planning, through to multi-phase construction and long-term operational maintenance.

Whether you need temporary power during construction, scalable modular e-PODs for permanent infrastructure or multi-set synchronous generation packages exceeding 200MVA, our expert team ensures your facility remains resilient, adaptable and fully compliant with your uptime commitments.

Why Colo Operators Choose Rehlko

Site-specific Engineering

Engineered for multi-phase builds, unpredictable load profiles and evolving customer demand.

Colocation developers and contractors face challenges not seen in hyperscale or enterprise facilities. Load diversity, staggered occupancy, and constantly shifting tenant requirements demand a power strategy that is both stable and flexible. That’s exactly what we deliver.

Guaranteed Resilience

Delivering guaranteed resilience for SLA‑bound environments

We design systems that support Tier II–IV strategies, modular redundancy schemes and systems that are easy to scale up, maintain and upgrade without tenant disruption.

Speed to Power

Rapid deployment to support customer ramp schedules

Our bespoke modular e-PODs, offsite-assembled components and BaseCore foundations accelerate program timelines and reduce construction risk.

Flexibility of Design

Vendor‑neutrality and seamless integration

With diverse tenant technologies and consultant-led designs, our systems integrate with any UPS, switchgear, distribution, cooling or BMS monitoring platforms.

Scalable Solutions

Scalable power infrastructure for phased leasing cycles

We design for what’s needed now, and what’s coming next. Every solution accommodates future tenants, uncertain load profiles and site expansion.

Minimised Risk

Minimising risk across construction and live environments

Colocation sites often undergo construction while operational. Our methodologies ensure zero-disruption upgrades, risk‑managed commissioning and tightly controlled change processes.

Fully bespoke, vendor-neutral e-PODs

For consultants and operators requiring maximum flexibility, we can assist you in developing a modular power solution, completely detailed to your site preference or requirements. This allows us to integrate any preferred transformer, RMU, UPS, switchgear, batteries or cooling equipment.

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Rehlko BaseCore e-POD range

A streamlined, standardised modular solution using fully engineered Rehlko components, reducing lead times, programme risk and design complexity.

  • Fully designed & engineered in-house
  • Factory-built and tested to L3 prior to site delivery
  • Installed and pre-commissioned by our specialist Engineering teams
  • Designed for multi-phase expansion, with absolute scalability in-mind
  • Optimised for tenant resilience and operational efficiency
Find out more

Our Data Centre Work

  • 100MVA e-POD Installation for Hyperscale Data Centre

    This case study looks at the WB E-POD packages produced for one specific global hyperscale Data Centre client. The offsite built and tested solution includes transformer, switchgear, generator, UPS, cooling, gantry, all interconnections between containers and fully site commissioning making this a true plug and play solution. Read the full study here. 

  • 100MVA HV Generator Installation for Co-location Data Centre
    WB Power Services delivered 48 high‑capacity 1650 kVA Rehlko generator systems using a compact stacked gantry design to reduce footprint while supporting rising data hall power densities. The solution combined custom acoustic containers, advanced AMP802 controls and integrated belly‑tank fuel systems to maximise flexibility, reliability and space efficiency. Read the full study here.
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  • 80MVA HV Generator Installation for Co-location Data Centre
    WB Power Services delivered larger 1650 kVA Rehlko KD1650 generator systems to meet rising data hall power demands and support 11kV distribution. The solution provided fast‑delivery containerised packages with advanced AMP802 controls, dual outputs and resilient fuel systems for maximum operational flexibility. Read the full study here.
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  • 12MVA Generator Installation for Co-location Data Centre
    Rehlko & WB Power Services delivered scalable, high‑redundancy generator systems for a global hyperscale data centre. The solution used 10 Rehlko V715 units with customised controls and fuel systems to maximise reliability and efficiency. Read the full study here. 
  • 5.7MVA Edge Data Centre Installation
    WB Power Services delivered a 5.7 MVA backup power solution for a major South East telecoms provider, installing three 1900 kVA generators with bespoke acoustic enclosures and integrated fuel systems. The project included full decommissioning of existing equipment, factory testing, complex logistics and final commissioning — all completed on time and within budget. Read the full study here.
Read More Case Studies
DC-CWL11
WBPS DC Image mk1

Why work with us on your colocation data centre project?

Rehlko specialise in delivering intelligent power solutions that support every stage of the RIBA Plan of Work from early concept and feasibility through to technical design, construction, and in‑use performance. Our adaptable systems integrate seamlessly into diverse project environments, ensuring reliable, scalable, and energy‑efficient power infrastructure exactly when and where it’s needed. Whether supporting temporary site operations or forming part of the permanent electrical strategy, we provide engineered solutions that enhance project resilience, reduce downtime, and keep your development powered through every phase of its journey.
Hyperscale Data Centres

Deliver massive‑scale reliability with high‑density, modular critical‑power solutions. Designed for rapid deployment, global consistency and efficient operation across cloud, AI and compute‑intensive hyperscale environments.

Colocation Data Centres

Enable always‑on colocation facilities with scalable, efficient critical‑power systems. Support multi‑tenant reliability, reduce energy waste and meet strict SLAs with robust, fault‑tolerant infrastructure.

Enterprise & Edge Data Centres

Reliable, scalable critical‑power solutions for edge and enterprise sites. Maintain uptime, support distributed IT growth and ensure consistent performance with resilient infrastructure built for fast deployment and evolving demands.

Our Colocation Data Centre Power Solutions

  • Civil works & site preparation, concrete base and fencing security solutions

  • Prefabricated acoustic solution including canopy with attenuation, doors and exhaust silencer. Also includes lighting safety and fire suppression systems

  • Industry leading Rehlko generators up to 4500kVA (HV and LV)

  • Fuel storage & distribution, built to DEFRA guidelines

  • Combined exhaust and heat discharge

  • Acoustic exhaust silencer, with SCR technology

  • Single generator to large hyper scale multi-sync packages

  • Footprint solutions & space planning, utilising gantry access systems 

  • Modular power systems (e-Pod) including UPS and batteries, HV & LV switchgear, transformer, RMU

End-to-end. One Partner. One Promise.

E-Pod_Base Core_studio_Module Tags_1_0950

The new blueprint for data‑centre‑grade power, purpose‑built to help developers scale faster. Acting as a foundation, BaseCore brings together fully engineered Rehlko modules within a base, foundation design.

BaseCore, Helping Developers Scale Faster

The Data Centre e-Pod is a modular, bespoke package, fully designed in-house by Rehlko & WB Power Services. Packaged at our purpose-built production facility, the e-POD offers a truly bespoke critical power solution, fully designed to client specification, using client preferred products.

Bespoke Modular e-POD Power Solutions

You can rely on us to consider everything, including civil work, transformers, control and switch gear, AMF and synchronous controls, generator sizing and power capabilities, UPS, acoustics, exhausts, emissions control and fuel solutions.

Full RIBA Technical Design & Installation

We offer power train infrastructure which has been fully, factory acceptance tested product prior to delivery to site, vastly reducing lead time.

Full L3 Testing Prior to Site Delivery

Need more help?

Having a critical power system installed at your Data Centre your site can be a daunting buying process to navigate, especially if it’s not your field of expertise. To give you confidence in their decision and enable them to be more informed when talking to our (or any) sales team, we have put together a number of useful resources which will help you on your journey.

e-POD Modular Power Case Study

WBPS delivered an offsite‑built, fully tested 60MVA modular e‑Pod power package providing a fast, fully integrated plug‑and‑play standby solution for a hyperscale data centre.

Unravelling Data Centre Power in an OFCI World

Tired of all the technical jargon? Not sure what it all means? Read and download our jargon buster document to make sense of all the industry terms.

Our Data Centre Solutions

Looking for a non-modular, more traditional design? We have worked with hundreds of DC Developers to develop critical power systems of all sizes and shapes. No matter the site requirement, we can help.

Tell us about your Data Centre project