Fully-Electric Transport Refrigeration That Delivers Today

Purpose-built from the ground up for outstanding performance, maximum utilisation, and reduced operating costs

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Delivering for industry leaders

Sunswap Endurance

Cooling Performance Without Compromise

The world's first purpose-built battery and solar-powered transport refrigeration unit. No diesel. No emissions. No compromise.

Proven Performance

From 24 hours frozen, to 2 months chilled runtime - all from one charge.

Lower Operating Costs

Save up to 81% compared to diesel transport refrigeration units.

Sunswap's Endurance transport refrigeration unit from a 45-degree angle

Real Decarbonisation

Zero CO₂. Zero NOx. Zero particulates.

Ready to Deliver

Fits to any trailer, no complex charging infrastructure, and state-of-the-art aftermarket support.

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The Sunswap Philosophy

Built Electric From Day One

We’ve made no compromises in making electric a truly viable option for your fleet.

Emission-Free Economics

No longer choose between the environment and your bottom line with up to 43% savings in total cost of ownership.

Built to Fit

Going electric shouldn't be a burden. Endurance was designed to fit into your existing operations. Simply plug in and continue delivering as usual.

Natural Downtime Charging

Solar energy tops up the battery at rest and on the go to extend your range and reduce your charging time.

Maintenance Simplicity

Robust, state-of-the-art diagnostics predict issues before they become a problem, coupled with a wide network of support on the road.

Sunswap's Endurance unit on Bannister trailers
Case Studies

Performance for Every Operation

Results from the road.

Cranswick: When Britain's Food Giant Chose Zero-Emission Over HVO

Cranswick chose Sunswap’s zero-emission refrigeration over HVO, cutting emissions to zero and reducing operational costs by 81%.

Tesco: Leading UK Retail's Transition to Zero-Emission Cooling

See why the UK's largest retailer trusts Endurance for consistent, zero-emission cooling.

Bannister Transport: The First Fully Electric Refrigerated Fleet

One operator's complete transition from diesel to battery and solar, eliminating 4,800 tonnes of CO2 annually.

What The Industry is Saying

"Responsible business is a key part of what we do. We are always looking for innovative solutions that support our business without being at odds with the ecosystem. We believe this collaboration with Sunswap will bring that key combination of environmental and operational benefit."
Alistair Leckie
General Manager
Samworth Brothers
"Beyond the sustainability gains, Sunswap's technology proved incredibly easy to integrate into normal operations without workflow adjustments. We didn't need to think twice about the routes we put it on. Drivers noted it was much quieter than diesel units during overnight residential deliveries."
Brian Sagaseta
Managing Director
Chiltern Distribution
"Many low- and zero-emission prototypes have been tested on Tesco delivery routes. We found the Sunswap system to be the standout for performance and its unique ability to complete our complete range of delivery cycles."
Cliff Smith
Fleet Engineering Manager
Tesco
"This investment in Sunswap's technology aligns with our commitment to sustainable transport solutions. Sunswap's proven zero-emission refrigeration technology offers our customers a practical path to cleaner, more efficient cold chain operations."
James Smith
Group CEO
Hireco
"I was initially sceptical that any battery-powered refrigeration unit would meet the high demands we put on our equipment. We were pleasantly surprised with the performance and how it handled the requirements for delivering fresh produce. I'm pleased to see Sunswap have created true competition for diesel fridges."
Lee Jupiter
CEO
Freshlinc
"It was a real shaker in the marketplace. With our comprehensive sustainability strategy, we're looking at innovation that can drive down our consumption in terms of fuel and CO2. Being electric, we don't have to use diesel – it's simply plugged into the mains, and when the sun's out, it gets charged."
Mark Bendall Jones
European Transport Manager
Americold
"The Sunswap trailers provide a huge opportunity to reduce the carbon footprint of our operations and strengthen our offering to customers. We're adopting Sunswap units as the only feasible zero-emission refrigeration option aligned to our fleet emission reduction targets."
Matt O'Dell
Managing Director
DFDS
"The Sunswap Endurance unit quickly proved itself, performing exactly as we needed – just like any other fridge in our fleet, but with zero emissions. This trial has shown us that we don't need to compromise on performance to achieve our sustainability goals."
Nick Mackay
Transport Operations Director
Moran Logistics
"We were hugely impressed by the potential of Sunswap's technology. We're excited to work closely with Sunswap to meet our customers' growing demand for zero-emissions deliveries, vastly reducing our reliance on fossil fuels and shrinking our carbon footprint."
Tom Owens
Owner and Managing Director
Bannister Transport
"We are delighted to commit to upgrading our technology for the benefit of lowering our costs and environmental impact. We eagerly anticipate when we get our very own electric refrigeration units complete with solar panel-topped trailers."
Vernon Read
Managing Director
Staples Vegetables
"We were impressed with the performance of the system and its ability to run for the entirety of the trial on free clean energy generated by the solar panels."
Wayne Exley
Senior Logistics Manager
Muller
"We really like the idea of the fully electric Endurance which helps to reduce the carbon footprint from transport refrigeration. CBR Refrigeration looks forward to supporting Sunswap in the North East of England."
Chris Ball
Director
CBR Refrigeration & Air Conditioning
"The development of Sunswap's electric transport refrigeration unit represents a significant step in the right direction. Genesis Refrigeration takes pride in supporting their growth with our team of expert mobile refrigeration engineers."
James McDowell
Managing Director
Genesis Refrigeration
"Collaborating with Sunswap has been an eye-opening experience. The Endurance unit not only met but exceeded our expectations in terms of performance and reliability. We are thrilled to be at the forefront of trialling sustainable refrigeration technology."
John Davidson
Managing Director
JS Davidson
"Sunswap's refrigeration system is unique and this partnership allows us to offer our customers another sustainable solution for their refrigerated trailer fleet management needs. We are excited to be at the forefront of implementing clean technology to reduce our customer's carbon footprint."
Rogier Laan
Vice President Sales and Marketing
TIP
"We were hugely impressed by the potential of Sunswap's technology. We're excited to work closely with Sunswap to meet our customers' growing demand for zero-emissions deliveries, vastly reducing our reliance on fossil fuels and shrinking our carbon footprint."
Tom Owens
Owner and Managing Director
Bannister Transport
"It was a real shaker in the marketplace. With our comprehensive sustainability strategy, we're looking at innovation that can drive down our consumption in terms of fuel and CO2. Being electric, we don't have to use diesel – it's simply plugged into the mains, and when the sun's out, it gets charged."
Mark Bendall Jones
European Transport Manager
Americold
"We are delighted to commit to upgrading our technology for the benefit of lowering our costs and environmental impact. We eagerly anticipate when we get our very own electric refrigeration units complete with solar panel-topped trailers."
Vernon Read
Managing Director
Staples Vegetables
"Responsible business is a key part of what we do. We are always looking for innovative solutions that support our business without being at odds with the ecosystem. We believe this collaboration with Sunswap will bring that key combination of environmental and operational benefit."
Alistair Leckie
General Manager
Samworth Brothers
"We were impressed with the performance of the system and its ability to run for the entirety of the trial on free clean energy generated by the solar panels."
Wayne Exley
Senior Logistics Manager
Muller
"I was initially sceptical that any battery-powered refrigeration unit would meet the high demands we put on our equipment. We were pleasantly surprised with the performance and how it handled the requirements for delivering fresh produce. I'm pleased to see Sunswap have created true competition for diesel fridges."
Lee Jupiter
CEO
Freshlinc
"The Sunswap Endurance unit quickly proved itself, performing exactly as we needed – just like any other fridge in our fleet, but with zero emissions. This trial has shown us that we don't need to compromise on performance to achieve our sustainability goals."
Nick Mackay
Transport Operations Director
Moran Logistics
"This investment in Sunswap's technology aligns with our commitment to sustainable transport solutions. Sunswap's proven zero-emission refrigeration technology offers our customers a practical path to cleaner, more efficient cold chain operations."
James Smith
Group CEO
Hireco
"Beyond the sustainability gains, Sunswap's technology proved incredibly easy to integrate into normal operations without workflow adjustments. We didn't need to think twice about the routes we put it on. Drivers noted it was much quieter than diesel units during overnight residential deliveries."
Brian Sagaseta
Managing Director
Chiltern Distribution
"Many low- and zero-emission prototypes have been tested on Tesco delivery routes. We found the Sunswap system to be the standout for performance and its unique ability to complete our complete range of delivery cycles."
Cliff Smith
Fleet Engineering Manager
Tesco
"The Sunswap trailers provide a huge opportunity to reduce the carbon footprint of our operations and strengthen our offering to customers. We're adopting Sunswap units as the only feasible zero-emission refrigeration option aligned to our fleet emission reduction targets."
Matt O'Dell
Managing Director
DFDS
Sunswap Shield

Outstanding Aftermarket Support

We've brought managing your fridge fleet into the 21st century.

Established Network

Our network of certified technicians provides rapid response times and comprehensive service support across every region.

Maximise Uptime

Cloud-connected remote diagnostics continually monitor the fridge to predict and prevent issues before they occur, and enhance performance over time through software updates.

Flexible Support Options

From essential maintenance to comprehensive care packages, Sunswap Shield offers support tailored to your needs.

Simplified Design

Minimal points of failure and easy access for maintenance results in significantly reduced repair times.

Learn about Sunswap Shield
3D render of Sunswap's Endurance on a moving truck and trailer
About Sunswap

Sunswap is Dedicated to Building the Best Transport Refrigeration Unit

Painstakingly designed to maximise efficiency and perfomance, our electric transport refrigeration units are a road-ready alternative to old-fashioned diesel technology. Our precision-engineered systems give fleet operators complete control over their cold chain operations, delivering the reliability your customers expect.

Sunswap's Mission
3D render of Sunswap's Endurance unit and trailer in urban surroundings, in the city.
Blog

News and Updates

Stay up to date with the latest developments from Sunswap.

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Customer Announcement

TIP Group and Sunswap launch EU trials with DLG

TIP Group and Sunswap have announced the start of a long-term trial of a zero-emission transport refrigeration unit with Daily Logistics Group (DLG)
August 5, 2025
Customer Announcement

Staples Vegetables Adopt Zero-Emission Transport Refrigeration

Lincolnshire farmer becomes first UK fresh produce supplier to adopt battery and solar-powered refrigeration, cutting transport costs by 78%
July 22, 2025
Insights

The Cost of Waiting to Electrify Your Transport Refrigeration

Explore the real cost of waiting for transport refrigeration electrification—delaying adoption risks missed savings, lost contracts, and lower asset values.
July 16, 2025
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Join the Team

Bring Your Best to Sunswap

We're manufacturing technology that's tackling the urgent challenge of decarbonising logistics. Be part of a team that's setting the new industry standard.

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Sunswap in Your Fleet

Discover How Sunswap Can Benefit Your Fleet

Move beyond diesel with proven electric transport refrigeration, trusted by leading UK and European transport operators and retailers.

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