Voltloader Trials Sunswap’s Electric Transport Refrigeration for Sainsbury’s Deliveries

The trial demonstrated Sunswap’s electric refrigeration unit’s ability to maintain reliable temperature control across multiple daily deliveries between Strawson’s Newark facility and Sainsbury’s regional distribution centres. The results establish a framework for future electric refrigerated transport solutions.

Gavin Hodgson, representing Sainsbury’s, highlighted the importance of collaboration in sustainable transport: “We believe partnership in the food system is key to addressing some of the issues of Climate Change and are constantly looking for ways to collaborate in order to achieve this and to minimise agricultural disruption. Facilitated by our supplier Strawson, this trial of Voltloader’s electric HGVs to transport our crops is a great example of reducing carbon emissions in our operations and shows what we can achieve through long-term partnerships.”

Zero-Emission Refrigeration in Electric Fleets

The shift to electric trucks presents challenges in refrigeration, as traditional systems often depend on the vehicle’s power source, impacting range and flexibility. Sunswap’s Endurance unit operates independently on battery and solar power, ensuring continuous cooling without drawing energy from the truck. The integrated solar panels generate power even during deliveries, extending operational time and enhancing fleet efficiency.

Alastair Gough, Head of Business Development at Sunswap, emphasised the synergy between electric trucks and independent refrigeration: “As more operators transition to electric vehicles, having truly independent, zero-emission refrigeration becomes crucial. Our solar and battery-powered technology ensures reliable temperature control without compromising vehicle range or environmental benefits.”

This project follows Sunswap’s earlier collaboration with MAN Truck & Bus UK, where electric trucks and zero-emission refrigeration were tested at HORIBA MIRA.

Expanding the Electric Cold Chain

Momentum for fully electric refrigerated transport is growing. Bannister Transport plans to launch the world’s first fully electric refrigerated trailer fleet later this year, equipping all 40 trailers with Sunswap Endurance units. This deployment will demonstrate large-scale zero-emission temperature-controlled distribution.

Sunswap’s Endurance system offers both environmental and economic advantages. It reduces CO₂ emissions by 12 tonnes annually per unit compared to diesel alternatives, lowers total cost of ownership by up to 35%, and cuts operating costs by as much as 81%. Integrated solar panels supply 50–60% of the system’s energy needs, reducing reliance on grid charging. Advanced telematics and cloud-based monitoring further optimise efficiency and operational control.

This trial with Voltloader underscores Sunswap’s ongoing efforts to support major retailers and logistics providers in reducing emissions across the cold chain. By proving the viability of fully electric temperature-controlled transport, the company is helping operators transition to more sustainable logistics solutions.