Fuel storage and management systems for data centres

OTS delivers reliable, future-ready solutions to support your disaster recovery and backup power strategies. Our bespoke fuel storage and management systems are designed specifically for data centres where continuity, control, and resilience are non-negotiable.

Data centres rely on uninterrupted power to keep servers, cooling systems, and critical infrastructure running 24/7.

In the event of a power outage, emergency generators must perform instantly and that means the fuel system behind them must be clean, monitored, and ready. OTS provides bunded fuel tanks and advanced fuel management systems that ensure maximum reliability, fuel quality, and operational uptime.

To find out about our generator base tanks (also known as slab or belly tanks) please click below or get in touch.

Find out about OTS Slab Tanks

Generator Base (Slab) Tanks

Our bunded slab tanks are purpose-built to sit directly beneath generator container packages, making them ideal for space-constrained sites. With capacities from 10,000L to 40,000L and the structural strength to support up to 75 tonnes, OTS slab tanks offer a compact, high-performance fuel storage option.
Advanced Fuel Monitoring and Control

Our tanks now feature PLC (Programmable Logic Controller) integration, allowing real-time monitoring of fuel levels, temperature, density, and water content, all from a central interface. With modular design options, clients can manage multiple tanks from one controller or structure systems with built-in redundancy.
Remote Monitoring Solutions (RMS)

We’ve developed a resilient, IoT-enabled remote monitoring solution with multi-network failover. Proven on critical sites, our RMS ensures uninterrupted communication with central systems—even in low-signal areas.
Temperature-Controlled Systems

For data centres operating in extreme climates, we design and supply tanks with integrated fuel heating systems to maintain stability in biodiesel blends and prevent waxing or flow issues during cold periods.
Built-in Fuel Quality Management

Our systems include options for fuel polishing, filtration, and contamination detection, helping maintain generator reliability and prolonging equipment lifespan. From water content detection to particle counting, we provide full visibility over your fuel condition.
Safety and Compliance Built In

All OTS tanks are manufactured to the highest safety and regulatory standards, including OFTEC OFS T200 and the Control of Pollution Regulations. Dual-layer bunded construction, overfill prevention devices, and bund alarms come as standard.

From design to installation – a complete turnkey process

Integrated fuel storage solutions tailored for data centre performance.

OTS goes beyond standard tank supply. We engineer complete systems that combine robust construction, cutting-edge monitoring, and seamless integration with site infrastructure.

Our job is to understand exactly what you need. Our brief and site survey process considers EA compliance, Health & Safety and client concerns to help to guide you to the right fuel storage solution. From the initial brief and site survey, we produce a detailed proposal that includes CAD drawings of our suggested tank solution & images of recommended equipment.
OTS Group has invested in additional qualified staff and 3D CAD software to enhance our drawing capabilities, from initial site survey and client briefing, we are able to produce 3D conceptual designs that allow a clear understanding of how the fuelling facility looks and the impact on the available space. Our full “turn-key” solution includes Planning Applications as part of the design & planning process.
In addition to the manufacture of bunded steel tanks in our Gloucestershire facto ry, OTS Group’ full “turn-key” solution ensures that any Civil and Electrical Works required to prep the site are covered.
Our specialist installation team work hard to ensure optimal delivery and installation of the tank, pipework and associated equipment, even in some of the most challenging of environments (including first-floor and restricted-headroom sites using skating and winching techniques).
At OTS Group, we pride ourselves on service, and we know that a successful delivery isn’t just a ‘set & forget’ affair. That’s why we provide PPM (Planned Preventative Maintenance ) programmes to ensure that your data centre can boast 100% uptime. From initial installation through 20+ years of operation, to decommission and replacement when the time comes, we’re here to help.

Best Practices for Fuel Storage

OTS provides full-service project delivery, from initial consultation through to ongoing maintenance.

To ensure safe and efficient fuel storage for data centres, it is important to follow the best practices.

Ensure that the storage capacity is sufficient to meet the data centre's power requirements for the desired runtime during an outage. Regularly review and update the capacity plan to accommodate the growth and changing needs of the facility.
Implement a robust leak detection system to monitor for any signs of fuel leakage. This may include sensors, alarms, and regular inspections.
Periodically inspect and maintain fuel storage tanks to ensure their structural integrity and functionality. This includes checking for corrosion, leaks, or other signs of wear and tear. Find out about Planned Preventative Maintenance.
Monitor and maintain the quality of the fuel in storage to prevent contamination or degradation. This may involve regular testing, filtration, and treatment.
Adhere to local and national regulations for fuel storage, including requirements for spill containment, tank design, and environmental protection.