Street

High-mast replacement cuts energy use by 40 per cent

high mast lights along a closed A-road at night time
The new LED units replace high pressure sodium luminaires on the A723 in Hamilton.

AN UPGRADE of high mast lighting columns in Scotland has led to a 40 per cent reduction in energy use.

The new LED units replace high pressure sodium luminaires on the A723 in Hamilton.

The road forms an important link between North and South Lanarkshire. Scotland Transerv, which holds responsibility for managing the road, identified the need to upgrade the lighting from SON to LED to improve performance, to illuminate to current standards, to include a compliant electrical distribution system, to reduce maintenance costs and, last but not least, to make energy savings.

The lighting was supplied by CU Phosco, who were also the main contractor on the project and was responsible for the design and build, including traffic management, geotechnical and site investigations, lighting design, electrical design, structural design, foundation, screw piling, trenching, high mast, lighting, cabling and feeder pillar installations, concrete and electrical testing.

To minimise distribution to the busy A road, the project was finished in 15 weeks. 

The original SON-T floodlights were replaced with P855 LED high mast luminaires. A total of 82 P855 models were used, along with 11 P863 units and two FL800s; mounted on 30m high mast columns.

With a 360-degree rotating optic, the P855 controls the light output while delivering up to 42,000 lumens per luminaire.

It has a G6 glare rating. 

The new lighting delivered a 40 per cent reduction in energy.

‘We wanted a single point of contact for all of the works and this proved effective in promptly managing and absorbing changes to scope,’ said Aled Davies, principal lighting and electrical engineer at Scotland Transerv.

‘We had a pragmatic and collaborative approach which allowed the project to be completed on schedule and within budget.’