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Westbrook Lane Primary School, Leeds

Retrofitting lighting in a school can have multiple benefits.  Energy costs can be significant where technology is outdated, but upgrading to the right LED lighting can provide a more effective learning environment and increased safety.  

Leeds City Council was responsible for the upgrade of Westbrook Lane Primary School’s lighting systems, which utilised mainly fluorescent technologies, resulting in a combined annual consumption of 39 MWh per year.  Funded through Salix, the public sector energy-efficiency financing organistion, a full LED upgrade provided an overall energy saving of 59%, down to 16 MWh per year. 

Completed in December 2015, the project is set to achieve the following indicators:

Total loan/funding amount


Number of old light fittings


Combined power consumption

18.5 kW

Number of new LED light fittings


Combined power consumption

7.6 kW

Annual cost saving


Annual energy saving


Annual CO2 saving

11.5 tCO2

Project payback time

8 years

LED upgrade

Following an extensive survey of the site, 198 light fittings were identified for replacement, many of these T8 or T12 fluorescent tubes, with sodium lighting in place outside.

These were replaced with a total of 221 LED fittings.  These were mainly indoor lights, comprising panels, circular bulkheads, battens and tubes as well as 9 external floodlights. Energy consumption was more than halved as a result of the installation, reducing the annual lighting bill to just over £2,150, down from over £5,300. 

Some individual replacements provided significant energy reduction – for example 60W bulkheads in store rooms were able to be upgraded to 10W LED equivalents.  For some of the larger fittings, 89W fluorescent tubes were replaced with 36W LED panels.  Like-for-like replacement was also carried out with 70W, 5 foot T8 tubes being upgraded to 40W LED equivalents.

Westbrook Primary also benefitted from installing new external lights, with seven 70W sodium floodlights and two 40W models able to be switched to 25W LED floodlights. 

With the new LED fittings, it was possible to specify and install a range of colour temperatures - Westbrook Lane used a mixture of both warm and daylight white to suit preferences.

Outcomes and lessons learned

The project delivered significant cost savings and a payback time of 8 years is expected.

It was observed that the better lighting allowed for an environment more conducive to learning and teaching. Westbrook Lane Primary had also reported poor lux levels in classrooms and frequent maintenance and cleaning of systems from its old systems – issues which were greatly improved by the upgrade to LED.