Question

If electricity costs $0.08/kWH, and a grocery store operates its lighting system for 8,760 hours annually, what is the estimated annual cost to operate the grocery store lighting system? The light fixtures used are two-lamp fluorescent troffers (each lamp used 40W) and there are 140 troffer fixtures in the store.

Select one:

a. $7,850 per year

b. $4,835 per year

c. $12,280 per year

d. $3,925 per year

e. $7,700 per year

Answer 1

Answer_a ) 7850 dollars per year

I have shown the calculation for the answer so that you can understand the solution easily. Hope you like the solution. Thank you.

Numbere of lamps = 140x2 Total watts used by lampo = 140x2 x 40 Total KWH in a year = 140xx uox 8760 - 98112 KWH 1000 Cast = 98118 x 0.08 Cost - 78 50 per year