Precision Cooling, Zero Compromise

You can contact us here to schedule a call.

Many operators choose to validate our technology on their most demanding delivery cycles before making fleet-wide commitments.

Our team regularly participates in industry events across the UK and Europe, where you can see our technology firsthand. We're also happy to arrange site visits to our facility in Leatherhead where you can see Endurance units in production.

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The first step is to get in touch. We will work with you to tailor a proposal which meets your unique fleet and route requirements. Using our proprietary Sunswap Analytics™, we can provide ideal specifications and calculate your operational and environmental savings.

The weight of Sunswap Endurance is comparable to that of a diesel transport refrigeration unit. While the exact weight varies based on the specific configuration and battery capacity, our units are designed to minimise any additional weight without compromising performance or efficiency. In some cases, Sunswap Endurance is lighter than a diesel unit.

The solar panels on Sunswap Endurance are built to withstand the everyday challenges of the logistics industry. They are securely mounted on the trailer roof to minimise the risk of damage during normal operations. In the unlikely event of damage, our aftermarket support team is available to provide repairs or replacements. The solar panels can also be easily replaced if needed.

The battery pack in Sunswap Endurance is engineered for longevity and durability, with three key factors contributing to its 10+ year lifespan:

1. Advanced cell chemistry helps maintain optimal health when charged to 100%, eliminating the need to compromise between range and battery life.
2. Endurance's advanced Battery Management System regulates temperature throughout the battery pack, minimising degradation caused by temperature fluctuations.
3. Endurance's peak power usage is significantly lower than that of a typical electric vehicle, despite having a similar or larger battery capacity. This lower discharge rate results in slower degradation over time.

We anticipate the battery will last beyond 10 years, opening possibilities for second-life battery use, e.g. resale or use in other applications.

Sunswap Endurance is engineered for a product lifetime of over 10 years. This is beyond many operators’ natural life for a transport refrigeration unit.

Our robust design, which features fewer moving parts, coupled with proactive maintenace ensures long-term reliability and performance. Regular over-the-air software updates also optimise efficiency and extend the unit's lifespan.

Yes, Sunswap Endurance is trailer agnostic, so it can be fitted onto any type of refrigerated trailer: standard, urban, longwheel-based or double-decker. As the batteries are housed within the unit, no adjustments to the trailer are required.

Yes, Endurance can maintain stable temperatures even with frequent door openings. This has been validated through extensive real-world trials with major fleet operators, where the unit performed reliably under demanding multi-drop delivery conditions.

Sunswap Endurance maintains optimal performance regardless of weather conditions. Whether you're delivering fresh fruit in Scotland or ice cream in Spain, Endurance delivers the cooling power you need.

With solar power, there is an ideal synergy between energy availability and demand: winter requires less energy to keep produce cool while providing shorter daylight hours, whereas summer demands more refrigeration energy but provides longer daylight hours to generate that power.

Beyond solar generation, our modular battery system is the real key to on-road resilience. We size your battery capacity specifically for your routes and requirements. Need more power for longer frozen routes? We simply add more battery modules. This means your system is always right-sized for your operation, regardless of season or weather.

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Switching to Endurance can significantly reduce your fleet's carbon footprint and contribution to air pollution. Sunswap Endurance has zero tailpipe emissions, meaning no CO₂ or other harmful pollutants.

Diesel and hybrid systems produce CO₂ , NOx and particulate matter that contribute to climate change and pollute the air locally. Each Endurance unit typically saves 12 tonnes of CO₂ emissions annually compared to diesel alternatives. Switching to Endurance can significantly reduce your fleet's carbon footprint and help you get closer to your sustainability goals.

If you're using a hybrid system such as power take-off or axle-powered units, you're fundamentally relying on a diesel engine to provide power. This means you're not zero emission. Endurance has no diesel engine, so you're never burning a drop of diesel.

The battery and solar-powered unit is also much quieter than a diesel unit – making it easier to make nighttime and urban deliveries while limiting driver exposure to harmful noise levels.