LED LIGHTING FOR COLD STORAGE
Madrid, October 16 Maarten de Graaf
Did you know that? It takes 0.65KWh of air conditioning energy to cool down every 1 kWh of lighting heat.
Did you know that? Meaning that you ernergy bill for lighting is actually 65% higher!
Cold stores and traditional lighting Some challenges • • • • • •
Efficiency Lifetime Start-up and cool down time Heat Switching Replacement
LED lighting All challenges on the previous slide are NOT applicable to LED lighting.
Points of attention with LED • Electronics • Movement sensors • Glare
LED lighting is a natural fit for refrigerated and freezer cases, cold storage facilities, and many outdoor applications. PNNL-SA-85346 • January 2012
Business case 1 Global Phamarceutical Company Background.
Existing building
Project started in 2010 as pilot site for world wide roll-out for energy efficient lighting. Overall goal was to establish if it would be possible to implement LED lighting World-Wide with a ROI of < 3 years, without compromising the quality of lighting. It concerned an existing Global Distribution Centre. • Warehouses 12 meters • Warehouses 6 meters • Cold Storage 12 meters • Offices, meeting rooms, hallways and restaurant • Loading docks and parking areas and outside lighting. In total more then 6000 lamps were replaced by LED lighting
Figures overview
Energy saving :
63% (without dynamic switching !)
Replacement saving:
87%
The customers parameters
Annual Savings leading to 2.8 years ROI
Additional savings • After implementing dynamic switching with motion detectors, additional energy savings of 40% were realized. (=16% of the original energy consumption) • Because the LED lighting does not generate much heat, there are substantial savings in air-conditioning. • Based on the extra airco saving, the energy saving result of the coldstore is now > 100% according to the customer.
Business case 2 Large food manufacturing company Background
New building
New main facility of a large food manufacturer with production halls, warehouse, coldstorage -20°C, offices, loading docks and outside lighting. The client needed lighting levels up to 1000 lux in their production area for camera quality control.
Figures overview Cold storage only Bruto investering LED producten en ombouw €
24.408
Netto investering (Bruto minus EIA subsidie) €
21.874
Meerprijs t.o.v. conventionele HF verlichting €
4.602
Jaarlijkse besparing op Energie en vervanging €
5.719
Totale besparing over de levensduur €
68.738
Terugverdientijd netto-investering in jaren
0,80
Besparing op Kg CO2 uitstoot over de economische levensduur
22.251
Aantal bomen wat 1 jaar moet groeien ter compenstatie co2
689
Economische levensduur in jaren
12,0
Energy saving :
66% (without dynamic switching !) 97% with switching
Replacement saving:
24% Compared to Aurora longlife
Customer parameters Afgeleide waarden vanuit variabelen
Variabelen verlichting
Gem. branduren per week
80
Gem. branduren per maand
346
16
Gem. branduren per jaar
4.160
0,15
Gem. levensduur traditionele lamp in jr.
11,5 12,0
Dagen per maand
22
Branduren per dag Energieprijs / KWh (incl. alle kosten) € Subsidie: Energie Investerings Aftrek
41,5%
Gem. levensduur LED bron in jr.
Afschrijving verlichting
100%
Afschrijving bij koop in jaren
5
Levensduur Duurzame product in uren
50.000
Factor Duurzame versus huidige verlichting
1,0
Indirecte kosten vervangen lamp € Geschatte indirecte kosten migratie per LED tube €
9,00 -
Verwijderingsbijdrage per huidige lamp €
0,12
Financial Leasetarief €
20,60
Leasetermijn (jaar ?)
5
Belastingstarief opdrachtgever
25%
Voordeel directe afschrijvin 1e jaar €
6.102
Voordeel EIA subsidie 1e jaar €
2.534
Annual savings leading to 0.8 years ROI from the start
Additional savings • We did not calculate the savings coming from airconditioning.
Summary •
LED lighting is a great solution for cold stores BUT
•
Make sure you have a good technical solution
•
Look for a good supplier
Thank you for your attention!
