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Awards
Streets ahead
After: Hicks Gate with 144 LED 4000K SpeedStar fittings
A closer look at the project that won this year’s LGN public lighting award, sponsored by the ILP Bath and North East Somerset Council Before: Keynsham High Street with son street lighting and 250W HQI on crossing was the first council to move to LED street lights on a major traffic route, a strategy that caught the attention of the national The council worked closely with Philips Lighting to supply press back in July 2011. The scheme has and deliver the Iridium2 range of LED luminaires (4000K), now been running for two years and according to Bath ‘has again with Xitanium programmable drivers and integral delivered beyond expectations’ in terms of the savings and DynaDimmer to provide five lighting and power levels. The efficiencies predicted during the design stage. LEDgine boards and drivers can be upgraded at a later date The equipment installed – Philips Speedstar luminaires without changing the luminaires over the next 12 to 18 years. with LEDgine technology and Xitanium driver with five-stage, Elexon’s approval allowed the multi-level lighting levels to be multi-level standalone variable lighting profile – has also traded via the new multi-level static dimming profiles. proved to be reliable. The overall upgrade should save more than £200,000 The success of the project led to the development of an a year in energy charges and a further £50,000 in annual extensive business case in 2011-12 and a capital investment maintenance savings. The electricity load has been cut by of £2m during 2012-2013. This has enabled Bath and North 1.5m kWh, equivalent to 786 tonnes of CO2 or three per East Somerset to become the first authority to convert its cent of the council’s total energy consumption. The reduction entire main road high-energy consuming traffic lighting to in CO2 emissions should also help the council to offset LED sources, a project that was completed in April this year.
Lighting Journal September 2013