October 24, 2009

Bob's is wrong again


I knew I would get it when I made that bold statement about energy savings from a light bulb versus current efficiencies by increasing to 208v.  So here is the math.

Given a server room of 8 servers and 2 upses and 2 fluorescent light fixture... the 208volt efficiencies do exceed the savings of turning the lights out.

59watts x 40hrs a week x 52 weeks @ $0.12 kwh x 2 fixtures = ~$30
Low end estimate of APC's current loss savings ($4 per server per year) x 8 units = ~$32

Big whoop.... thanks RW

But... at $100 more per ups, it still doesnt pay to go to 208volt.