Prolight lighting up accommodation cabins

Background

An ambitious project led by Network Rail and Colas Rail used innovative solar lighting and power generation to prove the viability of a sustainable ‘Site of the Future’, achieving 97% diesel-free operation in support of a major rail renewal project at Llanwern, South Wales.

The joint Network Rail and Colas Rail initiative used solar and battery technologies from Prolectric instead of diesel generators to save 1,585 gallons of fuel, and more than 15-tons of CO2e during a 14-day project centered around a 72-hour possession over the May Day Bank Holiday weekend.

Challenge

Network Rail and Colas wanted to achieve near emissions free ‘Site of the Future’. Our clean, silent solar lighting and power generation technologies were used across the site covering more than 21-acres.

This included access roads, the welfare cabin area, car parking and the track working area itself, where the London to Cardiff main line meets the Llanwern steelworks spur, near Newport. The set up and core works spanned a period of around 14-days leading up to and following 72-hour possession, with more than 70 rail staff employed onsite.

The Solution

Two solar generators replaced conventional diesel generators providing light and heat for seven welfare cabins, including site offices, a canteen, toilets and a drying room. A total of 21 *ProLight solar tower lights illuminated the site compound, car park and work preparation areas, as well as being deployed on trackside, where 656ft of ProTrack battery-powered link lighting was also used. Our ProTemp column street lights were positioned along the access road to the site.

It was just as important to explore and extend the range of renewable applications, including a new solar powered Gate Guardian camera security system. It was also possible to demonstrate the versatility of using portable lithium battery packs, recharged as necessary from the solar generators to power dust suppression systems, water cooler stations and point motors.

Using diesel generators to support rail renewal work has been the only option for reliable off-grid power. Now viable solar technologies are being seen as a vital contribution to non-traction carbon targets, as well as to reduce the noise, smell and air pollution from diesel exhausts, especially next to residential areas. The first thing that staff and visitors noticed at the Llanwern compound was how quiet it was, compared to the usual continual background hum of diesel generators.

*ProLight is our alternative to the ProRXM.

Protrack on rail project countryside

The Result

“The environmental impact of running diesel generators all day on a major work-site like Llanwern is absolutely huge,” explains Ballinger. “It’s not just about carbon emissions; our lineside neighbors are very important to us. By using solar harvesting, we’re not polluting their environment with unwelcome fumes and noise.” The Llanwern ‘Site of the Future’ project is the culmination of determined development work driven by Network Rail and the Colas Rail team to adapt and refine solar and renewable technologies for the rail industry, with an aspiration to achieve diesel-free operation as standard.

Ryan Ballinger, explains: “We have worked closely to drive the development of suitable onsite solar tower lights and walking lights. The Llanwern project not only provided feedback to help refine the solar and battery technologies, but also identified energy-efficiency initiatives that can contribute to 100% diesel-free operation.”

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