lunes, 14 de julio de 2014

Supermarkets - Experience with LED




Background


SuperLima is one of the most success- ful chains of Supermarkets in Den- mark that attends thousands of clients on a daily basis in more than 90 stores, offering the best selection of national & international brands.

SuperLima is also a company aware of its environmental responsibility that’s is why the company in 2009 started an optimization process to reduce the energy consumption in their stores. They found that the old lighting system was inefficient and extremely expensive, increasing operating costs and CO2 emissions.

SuperLima has 90 stores spread across Denmark, with many years of experience, the best brands and a serious commitment to the environment.

 
The Challenge

SuperLima, being in an industry where margins are very thin, are always looking for ways to be more efficient and reduce costs. So the lightning system in such a business needs to be efficient, clean, and very cost efficient. At the same time, any change or modification of the lighting system needs to be done without any interruption in the daily operations and sales.
SuperLima was looking to save 50% on the costs genera- ted by lighting the stores. On top of that every detail counts, the color reproduction so products look inviting, the temperature of the light so the atmosphere make clients feel comfortable and the light distribution so the products are easily recognizable.



As “hero” areas and products like fresh produce, in store bakery, wines and spirits are vital to maintain and impro- ve turnover per area, finding the right solution was of utmost importance.

 

The Solution

Switching to LED technology was a natural solution to achieve the savings needed and the 750 old florescent tubes was changed to 750 HL-T8N-120CM 22W with a color temperature of 3000 kelvin to maintain the inviting atmosphere of the Supermarket. The light quality and distribution make this product the ideal replacement for traditional fluorescent lighting.
The change was completed with new tubes in the corri- dors, cashiers and storage areas. In just one week, our technicians and without interrupting the activities at the stores, had finished the complete installation of LED te- chnology. 

By using the same light fixtures the need for construction work or structural changes to the ceilings were avoided. 

750 HL-T8N-120CM 22W tubes

Fully compatible with existing fixtures

Uninterrupted operations during installation

Dialux simulation of lighting levels 


The Results

 

Changing 750 traditional T8 florescent tubes to low con- suming Led902 LED tubes and thus renovating the lightning system generates a yearly saving of 142,834 kWh, a 51% savings in energy. This means savings of around €24,000 a year per store.
All the Led902 products have a warranty of 5 years, but the technical lifetime of the equipment is more than 11 years. 

One further advantage of the new installation is the re- duction in air-conditioning, and food coolers, because LED light produces a lot less heat than conventional ligh- ting, this maintain fruits and vegetables fresher for lon- ger. The environment also wins with this positive change because CO2 emissions are reduced with 65 tons per year. 

Savings of €24.000 per store per year

65% reduction in energy consumption 65 tons of CO2 emissions per year eliminated

Return of investment: only 30 months

The technical lifetime: more than 11 years