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Table 7 Lighting calculations for industry A–C

From: Retrofitting existing buildings to reduce electrical energy consumption and greenhouse gas emission in Nigerian food and beverage industries

Fixture

Rating

Lumen per bulb

Industry A

Industry B

Industry C

Proposed retrofitting solution

Florescent

400

2300

360

300

330

LED tube of 20 W with 2500 ml

Incandescent 1

100

1750

150

4

CFL of 30 W with 2100 ml

Incandescent 2

200

3500

24

28

CFL of 60 W with 4200 ml

Incandescent 3

250

4875

15

CFL of 90 W with 6300 ml

Halogen

400

8000

64

80

60

LED flood light 100 W with 8000 ml

Consumption before DSM (kW h)

  

202,620

236,400

181,800

 

Consumption after DSM (kW h)

  

68,940

75,240

61,326

 

Savings (kW h)

  

85,920

161,160

120,474