- Lamp efficacy
Ensuring the lamp efficiently converts electricity into light (lm/W).
- Ballast classification
Controlling the electricity supply to the lamp (Energy Efficiency Index).
- Luminaire distribution
Controlling light emission using optics which bend and shape the light to the correct location.
- System efficacy
Combining optical and thermal control within the luminaire (luminaire lm/W).
- Presence/absence detection
Presence: Lights automatically turn on/off with movement. Absence: Lights automatically turn off and must be manually switched on.
- Daylight detection
Artificial lighting which responds to the natural light conditions.
- Constant illuminance
A function designed to produce correct light levels for the duration of the maintenance period.
- Task-scene setting
Allowing the user to set scenes and adapt the lighting to different tasks.
- Timed off
Automatic cut-off can be installed to turn all lights off during unoccupied hours.
- Task lighting
Lighting task areas with the correct amount of light.
- Zoning of lighting
Zoning of lighting
Lighting is zoned according to area use.
- Maintenance schedule
Maintenance must be performed in response to product age, performance and environment.
- Waste light
Eliminating waste light which does not hit the intended target.
Taking advantage of light which is reflected from the surface within the space.
- Visible smart metering
Visible smart metering
Results of actions can be quickly seen as increased or decreased energy use to encourage responsible energy consumption.
Wilko is one of the UK’s fastest growing high street retailers with over 380 stores that greet more than 4 million customers every week. Offering a wide range of household products, from housewares and garden furniture to stationery and batteries, the company started to rebrand as Wilko in 2013 to reflect their new mission of ‘where there’s a Wilko, there’s a way’. This enterprise is known for procuring vacant or decommissioned shops for new Wilko sites wherever possible instead of new builds, with the aim of creating a greener footprint.
Sustainability and energy efficiency are high on their list of priorities, as is the aim of building a sustainable business culture which takes responsibility for its actions and supports a more sustainable solution for everyone they deal with and everything they touch. When upgrading their lighting naturally they wanted a solution that was sustainable.
Zumtobel Group’s Thorn, came up with a concept product specifically designed for use across the Wilko estate which, after discussion, became a CAD drawing and an engineering sample was constructed. With agreement over the luminaire, Thorn and Wilko expanded the proposal into a full turnkey lighting solution comprising lighting design, installation, extended warranty and maintenance.
The project was broadened even further to encompass lighting the shop windows, entrance areas, back of house staff support areas, Wilko’s two distribution centres in Manton Woods and Magor and the company’s Headquarters in Worksop. In fact, lighting for the whole Wilko estate will be provided by Thorn by the beginning of 2017 using in excess of 230,000 luminaires, 126,400 installation hours and not a single minute of retail down time.
The existing surface mounted luminaires in front of house were removed, along with the necessary wiring alterations and have been replaced with Thorn’s 46 Watt recessed fittings, to create a uniform illumination with an average 800 LUX. and the storage areas are lit by the robust moisture-proof Thorn ForceLED luminaire.
Emergency lighting is also included throughout the store and, where required, updated to meet current regulations using a variety of products from the range. Data loggers were installed in a selection of stores’ sales floors post and pre LED installation, with the purpose of obtaining real time figures.
Unprecedented energy savings of up to 60% have been achieved on the sales floor rising to 70% when including back of house and savings in excess of 9802 Kw’s.
Over 150,000 Thorn lighting products and controls have been used which will increase to 230,000 across the full estate, including the new stores, on completion. The project has been totally managed by Thorn, including the surveys, design, installation, commissioning and ongoing maintenance.
- Wilko Case Study PDF
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