What is the aerofoil?

Our aerofoil is an aerodynamically-profiled blade fabricated in the UK from extruded aluminium, teamed with a bespoke, robust bracket system that can be adapted for a range of shelf types and angles. The aerofoil has its own profiled, waterproof ticket strip, which will accommodate a client's existing price label dimensions.

Our aerofoil kit is a high-performance system, tolerant to the full range of ambient conditions occurring in practice. It is suitable both for retro-fitting to existing cabinets in-situ, and for incorporation into new-build units.

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How do aerofoils work?

Aerofoil technology for use in refrigeration was conceived using the principles of aerodynamics in aircraft. Aerofoils have very powerful effects on moving air-streams. They reduce turbulence and straighten falling air curtains back into shape.

All multi-deck fridges employ a curtain of refrigerated air blown down across the open front of the shelves to help maintain the contents at a consistent target temperature. However, much of this cold ‘air curtain’ spills out of the front of the cabinet and into the store aisles. Not only is this wasteful from an energy perspective, but it also causes ‘cold-aisle syndrome’ with consequent negative impact on the shopper.

Deployment of aerofoils on the edge of each shelf in the cabinet draws the cold-air curtain back into the fridge, thereby reducing spill, reducing energy consumption and improving aisle temperatures.

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What are the benefits of aerofoils?

Fitting aerofoils to open-fronted multi-deck cabinets is proven to reduce energy consumption by up to 40%, as verified by lab testing in ISO conditions. As well as the consequent cost savings to retailers, this also represents a major reduction to their carbon footprint.

Other benefits include reduced product shrinkage due to the stabilising effect that aerofoils have on product temperatures within the cabinet. An indirect benefit is to create warmer shopping aisles due to the reduced cold-air spill, thereby improving shopper comfort and extending browsing time.

In comparison with glass doors, aerofoils are a barrier-free solution to the problem of cold-air spill, and a much less expensive, more robust alternative requiring minimal maintenance.

The aerofoils themselves are made from 100% recycled aluminium, which requires only 5% of the energy required to produce new aluminium. We have, therefore, further enhanced the technology's energy-saving credentials by reducing our upstream manufacturing footprint.

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How easy is it to install aerofoils?

In a word: 'very'.

We have engineered a bracket kit that provides an extremely rigid yet simple and unobtrusive attachment between the shelf edge and the aerofoil. No drilling is required and hence there is no requirement to de-merchandise the cabinet. The system is also designed to accommodate a mini- or full-sized riser to facilitate product alignment. All but the largest stores can be retro-fitted with aerofoils in a single night.

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Vortex - Time to say 'goodbye' to glass doors

The simple fact is that fitting aerofoils to your cabinets will deliver up to a 40% improvement in energy performance in laboratory and 25% in store conditions. A straightforward, quick-to-implement solution.

However, we knew we could improve upon the savings achievable from aerofoils alone. So in conjunction with our senior aerodynamicists at Williams, we climbed inside a multi-deck cabinet (virtually, that is) to model every aspect of its aerodynamic and thermodynamic behaviour.

The result is our Vortex technology suite: increased energy savings of as much as 56% and elegant solutions to common problems such as product temperature hot-spots and warm air ingress. Finally, open-fronted multi-decks with performance to rival those with glass doors, yet without the cost and maintenance overhead.

Vortex technology also transforms the energy and temperature performance of cabinets with sloped shelving.

Our Vortex technology is now available for retro-fitting to existing cabinets or for installation in new-build units.

But Vortex doesn't stop there. We've developed other technologies that enhance or complement our Aerofoils...

Mind the gap!

Small is beautiful

Lighting and labeling


Aerofoil Energy continues to develop new and innovative solutions for improved energy performance in commercial refrigeration.  Below is a list of our current granted and pending patents, along with product designs registered by the company.



Australia patent no.  2014252898; Canada application no.  2908918; China patent no.  ZL2014800207039; China application no.  201710965416.0; EPO application no.  14717816.4; Hong Kong application no.  16107074.6; India application no.  2786/MUMNP/2015; Japan patent no.  6405364; South Africa patent no.  2015/08291; UK patent no.  2519463; UK patent no.  2522571; UK patent no.  2541996; USA application no.  14/783,636;

Aerofoils on Upper Shelves

Australia application no.  2016358977; Canada application no.  3005778; China application no.  201680068536.4; EPO application no.  16804868.4; Hong Kong application no.  18110336.2; UK application no.  1520795.4; USA application no.  15/778,973;


Australia application no.  2017265919; Brazil application no.  112018072048-8; Canada application no.  3015956; Chile application no.  201803091; China application no.  201780018630.3; EPO application no.  17724435.7; Hong Kong application no.  18115608.2; Japan application no.  2018-560623; Malaysia application no.  PI 2018001629; Mexico application no.  MX/a/2018/013250; Republic of Korea application no.  10-2018-7035882; South Africa patent no.  2018/05847; Thailand application no.  1801007040; UK patent no.  2550360; USA application no.  16/302,471;

Aerofoil Shelf-Lighting

Australia application no.  2017303860; Canada application no.  3031307; China application no.  201780046942.5; EPO application no.  17748888.9; Hong Kong application no.  19133149.5; PCT application no.  PCT/GB2017/052201; UK application no.  1613067.6;

Aerofoils Behind Doors

PCT application no.  PCT/GB2018/050582; UK application no.  1703813.4; USA application no.  16/536,852;


China application no.  201880021412X; EPO application no.  EP18715898.5; PCT application no.  PCT/GB2018/000049; UK application no.  1704959.4;

Shelf Tool

PCT application no.  PCT/GB2018/000060; UK application no.  1705605.2;


PCT application no.  PCT/GB2018/052721; UK application no.  1715593.8;


design registrations...

Aerofoil System

Australia registered no.  360460; EU registered no.  002465898-0001; EU registered no.  002465898-0002; EU registered no.  002465898-0003 ; EU registered no.  002465898-0004; EU registered no.  002465898-0005; EU registered no.  002465898-0006; EU registered no.  002465898-0007; EU registered no.  002465898-0008; EU registered no.  002465898-0009; EU registered no.  002465898-0010; EU registered no.  002465898-0011 ; EU registered no.  002465898-0012 ; USA registered no.  D777,225; USA registered no.  D854,590; USA registered no.  D824,963;


Our aerofoil technology has been internationally acclaimed, and Aerofoil Energy in conjunction with Williams Advanced Engineering has received the following awards.

2019 Refrigeration Product of the Year

Aerofoils were awarded the 2019 Refrigeration Product of the Year at the 2019 RAC Cooling Awards, along with a special commendation in the Low Carbon category.


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100 engineering ideas that have changed the world

Engineers have radically changed lives for the better over the years, solving problems, improving safety and contributing to the quality of life...


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Aerofoil technology in finals for UK's top engineering award

Aerofoil Energy and Williams Advanced Engineering were finalists for the 2018 MacRobert award.


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IET Innovation Awards - 2016 Winner

In collaboration with Williams Advanced Engineering, Aerofoil Energy proved its energy saving credentials yet again by winning the Horizontial Innovation category award at the prestigious IET Innovation Awards.


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Top industry awards celebrate the ingenuity of Aerofoil Energy

The global potential of Aerofoil Energy's environmentally friendly technology earns recognition at award ceremonies.


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Download brochures and other information about Aerofoil Energy and our technology.

Aerofoil Energy Landscape Brochure

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