Colas to trial solar roads

13/07/2016 | HIGHWAYS REPORTERS

Colas is set to start trialling its innovative solar road solution, Wattway, and is looking for UK sites.

The world’s first ever photovoltaic road surfacing technology provides clean, renewable energy in the form of electricity, while allowing for all types of road traffic. Installed on top of an existing road surface, the solar panels are lightweight and strong.

Carl Fergusson, Colas executive director strategy & development, said: “Without doubt this is an extremely exciting time for the industry and we are looking for a number of forward-thinking clients who are interested in running Wattway trials with us. The UK trials will form part of about 100 trials taking place world-wide.”

Designed and tested to endure vehicles continuously passing over the surface, the panels are just 7mm thick and are applied on the surface by using a high performance resin. A glass bead resin coating is also applied to allow the surface to provide acceptable frictional performance without significantly affecting the solar panels efficiency.

The power generated by Wattway has the potential to be used for highways and transportation infrastructure, such as variable message signs and street lights, but also could be returned to the grid or used to supply energy to nearby homes and businesses. An innovative source of renewable energy, it is particularly well suited for smart grids and short-circuit electricity production, as the need for new sources of energy and electric mobility continues to rise.

Fergusson added: “The first trial has already begun in France and by producing renewable energy, Wattway will certainly play a major role in building smart, sustainable roads of the future.”

Data will be gathered on Wattway’s functionality in parallel with the site requirements, as well as how efficiently it generates energy. This will be shared with Colas’ Campus for Science and Technology (CST) near Paris, where Wattway was developed over a five-year period in conjunction with other key partners and where the innovation is now being pre-industrialised for a full scale global launch from 2018.

Each solar panel is comprised of an array of 15-cm wide cells making up a very thin film of polycrystalline silicon that transforms solar energy into electricity. These extremely fragile photovoltaic cells are coated in a multilayer substrate composed of resins and polymers, translucent enough to allow sunlight to pass through, and resistant enough to withstand even large vehicle traffic.

The composite perfectly watertight “sandwich” is also designed to adapt to the pavement’s natural thermal expansion. The surface that is in contact with vehicle tyres is treated to ensure skid-resistance equivalent to conventional asphalt mixes. Electrical connections can be installed at the edge of the carriageway or in ducts integrated in the panels themselves. Lastly, electronic circuit breakers ensure safety.

“The trial sites will allow us to experiment with different ways to use this innovative technology and the feedback will help us validate the most appropriate solutions for our market. By reviewing feedback from our UK trial sites, will allow us to validate the most appropriate solutions for the UK market, which will ultimately help build our offers for full scale launch as of 2018,” notes Fergusson.

To read an in-depth feature on Wattway see the July issue of Highways Magazine.

Highways InProfile

latest magazine issue
Highways jobs

Ferry Host - WMF3049i

£25,584 - £25,992
Ferry Host - WMF3049i Windermere, Cumbria
Recruiter: Westmorland and Furness Council

Director of Streetscene

£92,027 - £105,394 (Director Grade) Pay award pending
We continue to have big ambitions for our borough Fareham, Hampshire
Recruiter: Fareham Borough Council

Principal Engineer - Urban Traffic Control (UTC)

£44,711 - £49,764
Liverpool is home to vibrant, energetic and engaged communities. Liverpool, Merseyside
Recruiter: Liverpool City Council

Senior Highways Network Technician - WMF2149e

£33,366 to £34,314
We are looking to recruit a friendly and motivated candidate to join our Highways Service Penrith, Cumbria
Recruiter: Westmorland and Furness Council

Roadworker/Driver

Grade 6 £25,183 - £25,638 per annum (Pay Award Pending)
We’re looking for Roadworker/trainee LGV drivers to be part of our team Derbyshire
Recruiter: Derbyshire County Council

Project Chargehand (2 Posts)

Grade 9 £31,344 - £33,253 per annum (Pay Award Pending)
We’re looking for experienced Project Chargehands to be part of the Highways Construction Services team Derbyshire
Recruiter: Derbyshire County Council

Lawyer 2- Planning and Highways

£49,764 - £54,181
We are looking for a fresh thinking and enthusiastic Planning and Highways Lawyer Hereford, Herefordshire
Recruiter: Herefordshire Council

Development Engineer

£35,967 - £41,268 per annum
Are you ready to play a key role in shaping and safeguarding the future of our highways and public spaces? Bexley (City/Town), London (Greater)
Recruiter: London Borough of Bexley

Professional Services Partnering Manager

Grade 13 £47,653 - £51,296 per annum (pay award pending)
We are seeking a dynamic and experienced Professional Services Partnering Manager to lead the strategic management Darley Dale, Matlock
Recruiter: Derbyshire County Council

Technical Supervision Manager

Grade 13 £47,653 - £51,296 per annum (pay award pending)
We are looking for an experienced and driven Technical Supervision Manager to lead our technical supervision teams within the Highways Service. Derbyshire
Recruiter: Derbyshire County Council

Street Lighting Electrician (CDC)

Grade 8, £32,662 - £36,239 (pay award pending)
Highways Operations is a growing service area within the Place directorate. Doncaster, South Yorkshire
Recruiter: City Of Doncaster Council

Highways Assistant Engineer WMF2133e

£39,513 to £40,476
We have an exciting opportunity for the right person to work within the challenging and ever-changing landscape. Penrith, Cumbria
Recruiter: Westmorland and Furness Council

Highways Inspector/NRSWA

£36,345 - £40,344
We are looking for an organised and self-motivated individual to join our Streetworks Team based in Hackney Central. Hackney, London (Greater)
Recruiter: London Borough of Hackney Council

Structures Commissioner

Grade 14 £53,166 - £59,080 per annum (Pay Award Pending)
We are seeking an experienced and strategic leader to join our team as the Structures Commissioner. Derbyshire
Recruiter: Derbyshire County Council

Team Leader Network Co-ordination

£51,429 - £58,140
As Team Leader for Network Coordination, you’ll manage a team that oversees all works and events on our public highways. Kensington and Chelsea, London (Greater)
Recruiter: The Royal Borough of Kensington & Chelsea Council

PRINCIPAL TRANSPORT PLANNING OFFICER

£43693 - £46731
We have an exciting opportunity for an experienced professional to join our team in Hull as a Principal Transport Planning Officer. Kingston upon Hull, East Riding of Yorkshire
Recruiter: Hull City Council

HIGHWAYS AND TRAFFIC ENGINEER - 4 POSTS

£43693 - £46731
We have several exciting opportunities for suitably qualified Highways Civil Engineers and Traffic Engineers Wilson Centre, 1st floor, Hull HU1 2AG
Recruiter: Hull City Council

Principal Transport Planner

£45,718 to £49,764
Do you have considerable experience in the transport strategy and policy, and are you looking for your next career development opportunity? Sheffield, South Yorkshire
Recruiter: Sheffield City Council

Project Lead - Bridges and Structures WMF3037e

£45,718 to £46,731
We are currently seeking to recruit a Project Lead to join our Bridges and Structures team Kendal, Cumbria
Recruiter: Westmorland and Furness Council

Highway Network Technician - WMF2090e

£27,711 - £28,624
We are looking to recruit a friendly and motivated candidate to join our Highways Maintenance Team as Highways Network Technician. Kendal, Cumbria
Recruiter: Westmorland and Furness Council
SUBSCRIBE NOW

Latest Video

Subscribe to Highways today to ensure you keep your finger on the pulse of everything happening in the UK road network throughout the year.

SUBSCRIBE NOW