Utility Analysis

The lights operate 6,000 hours per year and the average cost of electricity is $0.10 /kWh. The hourly wage for an electrician is $50 per hour. It takes an electrician 15 minutes to replace either a single HPS lamp or 6 T8 lamps. It takes an electrician 30 minutes to replace a HPS fixture with a new HBF fixture. ................
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