Sainsburys – Performance Auditing & Project Management

Client: Sainsburys

Value: £315k

Duration: 6 weeks

Role: M&E Consultancy; Technical Engineering; Technical Energy Centre

System / Service: Energy Auditing; LED Lighting; BMS & Controls

Project Scope

As part of Reset 6 (Sainsbury’s 20 by 20 Sustainability plan), ETS was appointment to undertake an energy survey of the Dulwich Superstore (47,606 sqft).

Our initial desktop survey from our Technical Energy Centre identified the store lighting had been on 24/7 after being left in override for 2 years. After deploying a Consultant Engineer to investigate at site, we discovered a number of keys areas where energy savings could be achieved, including operational behavioural issues alongside a number of technical problems.

The existing lighting comprised T8 florescent lights, recess spotlights, down-lighters and florescent tubes in the chilled / frozen cabinets. Much of the cross-shop lighting was below Sainsbury’s lux specifications resulting in dark areas across the sales floor. In addition, the existing controls were inadequate and not achieving lighting levels specifications.

Key Challenges

Careful consideration was required when proposing suitable dimming controls. ETS worked with client representatives and various stakeholders to ensure the appropriate lighting levels were achieved.

Added Value / Achievements

As a result of our recommendations, the Dulwich store was included in the allocation of the LED lighting programme to resolve the issues highlighted by our consultant. After works were completed, complaints from staff and customers were reduced and the store saw a significant reduction in energy consumption.

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