Why this Sussex factory is replacing SON with LED

Industrial manufacturer Parker Hannifin – which makes components and systems for everything from aeroplanes to gas containers – is on an energy-efficiency drive.

The $13 billion US-owned business has set itself the target of cutting its energy use by five per cent a year.

At its site in Littlehampton, West Sussex, facilities manager Tony Woodward realised that one of the best ways to achieve this would be to replace its old metal halide lamps with LEDs.

LED retrofits would save the company at least £36,000 ($55,000) a year, Woodward reckoned, as well as reducing government fees for carbon emissions, minimising disruption from lights going out, cutting maintenance costs, improving light quality and enabling better control.

I had looked at metal halide replacements in the past, but had not been able to find anything good enough. Then I came across the Energys lamps"

The project got the green light last year and 130 LED SON replacement lamps from Energys have now been installed in the factory, car park and warehouse at Littlehampton.

Woodward says: ‘The fact is that I had looked at metal halide replacements in the past, but had not been able to find anything good enough. But then I came across the Energys lamps. For a start, they offer the right colour temperature – an absolutely crucial requirement and one lacking from previous products I’d seen… An added benefit is they also have in-built fans to keep them cool.’

‘Not only was the life expectancy of the old lamps about 20,000 hours, they also degraded over time so that eventually they were only half as bright as when they’d been installed,’ Woodward says. The replacements are expected to last 50,000 hours.

The new lights also have benefits for staff – they improve colour quality, reduce heat in the workplace and make it much quicker and easier to get the lights back on following a blackout or power surge.

‘Previously, if there was a power surge and blackout, the old lighting would switch off and the emergency lighting would come on,’ said Woodward. ‘Once power was restored you were not able to switch the lamps back on for 20 minutes. The new lamps have the ability to be turned on instantly.’

Taking into account replacement and maintenance costs, Woodward expects the LED lamps to pay for themselves in less than six months. He expects to save at least 36,423 a year on energy bills, and hopefully more than £40,000.

He says he’s ‘delighted’ with the result of the project and has recommended Energys’ retrofit product to  managers of Parker Hannifin’s other UK sites. ‘The chances are that there will be further lighting upgrades in the not-too-distant future,’ he said.