PRODEGA

CASE STUDY

LED Full-Store Lighting Solution

PRODEGA

CASE STUDY

LED Full-Store Lighting Solution

FAST FACTS

STORE NUMBERS: 27 cash & carry stores in Switzerland servicing the food and hospitality sectors

PROJECT: 100% LED lighting solution for the cash & carry store and internal car parking area

PRODUCTS: Alto, Porto and Largo refrigerated case lighting Zest and TR12 accent lighting Vista and Forto ambient lighting

COOP of Switzerland is justifiably known as one of the most progressive food retailers in the world due to its ambitious sustainability programme which sets out a vision for how the retail group will become carbon-neutral by 2023.

On an annual basis, COOP sets CO2 reduction targets across its full range of operations. These sustainable principles are also followed by Prodega, COOP’s high-end cash and carry business which services the foodservice and hospitality industries through its 27 stores in Switzerland.

Prodega stores are typically 7000–12000 m2 with 5–7m ceilings resulting in high energy and maintenance costs for the lighting scheme. Lighting accounts for up to 70% of the energy bill in a typical Prodega store, which naturally made this a key area for improvement as Prodega moves to carbon-neutral status.

Prodega engaged Nualight to work closely with its retail design and energy team to develop a 100% LED lighting solution for its store in Biel, Switzerland that not only delivered significant energy savings of more than 45%, but also enhanced the retailer’s upmarket credentials and in particular the fresh area of the store.

As a business that services the entire industry up to the most gourmet restaurants and hotels, Prodega’s fresh food area is

spectacular in terms of the extent and variety of the produce. In recent years, Prodega introduced an innovative Coolway design for this fresh area. The Coolway is a chilled part of the store containing all of the fresh fruit and vegetables along with cured meats and chilled and frozen food. The fresh fruit and vegetables retain their freshness for far longer in this environment, but due to the high energy cost of cooling this area, it was particularly important that the right LED solution could be found.

Nualight co-developed a unique award-winning LED lighting solution for Prodega called Zest. Zest is a linear LED accent lighting system with the industry’s highest colour-rendering and double the on-target-illumination. This system, which was suspended in elegant lines around the fresh displays, is also colour-tunable and has very low glare. To reduce visual clutter, pricing signage was taken out of the displays and suspended from the Zest system, resulting in dramatically lit fresh food displays where the fruit and vegetables took centre-stage. Nualight’s Vivace technology (very high CRI and R9 resulting in excellent colour vibrancy) was used in all of

The Zest fresh food impactThe innovative linear design of Zest creates ultra-crisp accentuation together with premium colour-rendering and the ability to tune the colour temperature.

the refrigerated case lighting in the Coolway. When the reduced air conditioning load for the Coolway area was taken into account, Nualight’s lighting concept for Prodega Biel saved a total of 45% energy in lighting and 18% in refrigeration and air-conditioning for the entire store operations.

Fluorescent high-bay lighting was replaced throughout the store by directional LED high-bay lighting that gave a bright and fresh impression to shoppers but also improved the vertical illuminance on the shelf displays.

The wines and beers department of Prodega Biel is another strategically important area of the store. This large department uses rustic timber displays to showcase a vast selection of champagnes, wines and spirits. Powerful LED spots by Nualight were mounted at 4.5m heights to create a warm and sophisticated ambience in this area of the store.

The internal car park and loading areas of the Prodega Biel store were also converted to LED. Nualight’s Lineo solution with its very wide beam-angle was used to create a very even lighting concept which created a brighter and safer experience for customers while eliminating expensive maintenance costs for those areas of the store.

Lineo

Refrigerated case lighting

Zest

TR12

The Nualight Prodega Solution

63%SAVINGS

ON THE PILOT STORE’S ENTIRE

ENERGY BILL

EXISTING INSTALLATION NEW LED INSTALLATION

Area m²

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W/m² Area

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W/m²

Store (excluding Coolway) 3,728.00 Store (excluding Coolway)Conductor Rail FT XT 58W (Laden) 58 437 25,346 Highbay LED Z5-phase 120 0 0

Spot Solar (HIT) 150 154 23,100 Highbay LED 3 phase 96 243 23,328Hangeleuchte Copa D (HIT) =Pendant Lights 150 39 5,850 Highbay LED 3 phase 120 243 29,160

T8 Fluorescent Tube 1524mm 58W 58 14 812 LED Spot TR12 Z5 phase 32 0 0

EWW 36W 36 8 288 LED Spot TR12 3 phase 32 154 4,928Emergency Lighting 18 4 72 LED Hanging lamps 50 39 1,950Exit Signage 8 5 40 Emergency Lighting 7.5 18 135

Exit Signage 9.5 5 48LED Escape Route 5.5 46 253LED Panic 5.5 4 22Total Store (excluding coolway) Highbay @ 120W 36,496 9.79

Total Store (excluding coolway) 55,508 14.89 Total Store (excluding coolway)

Highbay @ 96W 30,664 8.23

Coolway 579.53 CoolwayHanging lamp Copa D (SDW-T) 100 42 4,200 Luair 3 phase 42 41 1,722

Conductor Rail FT XT 58W 58 2 116 Zest 1,200mm 30 64 1,920Hanging Lamp 150 13 1,950 Emergency Lighting 7.5 4 30Emergency Lighting 18 0 0 Exit Signage 9.5 2 19Exit Signage 8 2 16 LED Escape Route 5.5 0 0

LED Panic 5.5 6 33Total Coolway 6,282 10.84 Total Coolway 3,724 6.43Cold and Freezer Rooms 449.60 Cold and Freezer Rooms

rzb ship valves 60 32 1,920 7W LED ceiling light with a power supply (HS technics) 7.2 32 230

T8 Fluorescent Tube 1524mm 58W 58 139 8,062 Door lighting Centre red/white (Porto

610) 21 103 2,163

Exit Signage 8 1 8 Door lighting End red/white (Porto 610) 12 72 864Exit Signage 9.5 6 57

Total Cold and Freezer Rooms 9,990 22.22 Total Cold and Freezer Rooms 3,314 7.37

Garage 2,003.11 GarageFL 58W 58 92 5,336 Lineo 42 92 3,864Emergency Lighting 18 0 0 Exit Signage 9.5 3 29Exit Signage 8 3 24 LED Panic 5.5 12 66Total Garage 5,360 2.68 Total Garage 3,959 1.98External Ramp 180.00 External Ramp FL 58W 58 11 638 Lineo 42 11 462

LED Panic 5.5 2 11Total External Ramp 638 3.54 Total External Ramp 473 2.63Warehouse/Refuse Area 260.00 Warehouse/Refuse AreaFL 58W 58 19 1,102 LED High Bay 120 19 2,280Emergency Lighting 18 0 0 Emergency Lighting 7.5 1 8Exit Signage 8 2 16 Exit Signage 9.5 2 19

LED Panic 5.5 3 17Total Warehouse/Refuse Area 1,118 4.30 Total Warehouse/Refuse Area 2,323 8.93

Total lighting (W) 7,200 78,896 10.96 Total lighting (W) 44,456 6.17Total Lighting Power Consumption per year (3,600 h) (kWh)

284,026 Total Lighting Power Consumption per year (3,600 h) (kWh) 160,043

Electricity Lighting Consumption Saving per year (kWh) 123,983 43.65%

OTHER SAVINGS OTHER SAVINGSTotal Cooling (coolway) and air con for store 72,898 Total Cooling (coolway) and air con

for store 40,025

Total Cooling (coolway) and air con for store (3,600 h) (kWh)

262,433 Total Cooling (coolway) and air con for store (3,600 h) (kWh) 144,090

Cooling saving (coolway) and air con saving for store 118,343

Cooling saving (coolway) and air con saving for store (per kW= 50% Saving)

47,337 18.04%

CHUR

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