Lighting in Design August-September 2015

options, enabling clients to see where and when it would be best to spend the money.” The lifecycle analysis conducted by Blair Ham- mond & Associates showed that the first lighting design, which included high specification products, like Eurolux’s ALT 92W floodlights (F5157), would have a total cost of ownership of R635 275.97, over a period of 15 years.The second lighting design, on the other hand, would have a total cost of owner- ship of R772 798.90 over a 15 year period. However,

the first design would have an initial procurement cost of R151 072.18, while the second design only required R87 595.28. “To see these initial procurement costs in per- spective you also have to consider the relamping cost, which in the case of the first design came to R35 760.43, while the second design came in at R84 099.53.The first design would also only require 157 222.30 kWh over a 15 year period, while the second would demand 211 843.21 kWh,” explains

LiD 08-09/15 20