Quarry Bank Mill

A LARGE RETROFIT PROJECT FOR PHILIPS LED GU10

Quarry Bank Mill charts the story of mill workers, entrepreneurs and the industrial revolution. This National Trust site boasts Europe’s most powerful working waterwheel and features demonstrations of the many working practices of the era. It is an historical attraction pulling in visitors from all over the UK and abroad.

Lighting Services were asked to assist Quarry Bank Mill in a large scale project involving retrofitting all their lamps to appropriate LED solutions. Whilst this involved several different types of bulbs it primarily focussed on 35W and 50W PAR16 GU10 lamps.

Overall the project involved replacing approximately 500 halogen downlights with the 3W and 7W Philips LED PAR16 GU10 Lamps. This meant Quarry Bank Mill could retaining their existing light fittings to maximum cost-effectiveness and reduced the installed electrical load from 23.8kW to just 3.3kW delivering immediate energy savings.

The energy saving opportunity with these lamps is huge. Despite the expense of purchasing LED lamps the payback period on the initial purchase for Quarry Bank Mill is less than a year and a half with the annual energy savings standing just shy of £8000.

In addition to the energy saving there is a considerable saving on maintenance costs too. Particularly with the 7W Philips LED PAR16 GU10 Lamp’s life of 45,000 hours, compared to just 1,000 hours for standard halogen lamps.

Eleanor Underhill, Quarry Bank’s General Manager said: “The National Trust is committed to lowering its carbon footprint – both here at Quarry Bank Mill and at all our places and spaces across the UK. Measures such as switching off electrical appliances and lights when they’re not needed seem simple, but are the first step towards conserving the energy we use. we hope they will be encouraged to take steps in lowering their own carbon footprint at home – even the smallest changes can make a difference.”