Lighting cost savings project

[Dot2Dot]

What might be the simplest approach to calculating and/or capturing an energy cost savings relative to shutting factory lighting systems off that are not necessary over weekends and during other non-work shifts?

Thanks in advance for any suggestions offered.

 

[IRstuff]

Why wouldn't it be 2/7 of the power and a similar increase in time between bulb replacements, as a first order approximation?


TTFN

 

[peebee]

Check the cost per kWh on your utility bill -- or use a 5-cent per kWh rule of thumb.

kW x hours x cost/kWh = energy cost.

IRstuff's estimate makes sense too (assuming you can get a handle on what the existing lighting costs are)

 

[etf11]

try wiring the lights on each row to one phase and turn off two phases when th eplant is not in production. might be a littl elabor intensive, but involves a lot less capital investment, than switching over to flourescence all over.