ATHLETIC FACILITY LIGHT DIMMING

The Sinewave Energy Saving Strategy

Sinewave’s energy saving strategy is to install the ESD dimmers on all HID and fluorescent lights and then dim them during practice or cleaning, but quickly ramp them up to full power when required for competitive events.

Example: Tennis Facility

Electric cost = $0.10/kW-hr
Lighting power = 160,000 Watts at full power (931,840 kW-hr/year)

Operate at 100% for 10% of the time =      93,184 kW-hr/year
Dimming to 90% for 70% of the time =   587,059 kW-hr/year
Dimming to 50% for 20% of the time =     93,184 kW-hr/year
                                                         Total =   773,427 kW-hr/year

This simple dimming scheme saves 158,413 kW-hr/year (17%)
Cost savings = $ 15,841/year
Payback = 39 months for HID (31 months for fluorescent lamps)

Example: Professional Basketball Practice Facility

Electric cost = $0.10/kW-hr
Lighting power = 100,000 Watts at full power (876,000 kW-hr/year)

Dimming to 90% for 50% of the time =   394,200 kW-hr/year
Dimming to 50% for 50% of the time =   219,000 kW-hr/year 
                                                    Total =   613,200 kW-hr/year

 This simple dimming scheme saves 262,800 kW-hr/year (30%)

Cost savings = $ 26,280/year
Payback = 14 months for HID (11 months for fluorescent lamps)

The ESD Also Dims Fluorescent Lamps

Ten ESD Sinewave lighting dimmers installed in a parking garage can save more than 290,000 Watts of energy, saving 1,000 Tons of coal, and reducing carbon dioxide emissions by 405,000 pounds per year.
And the payback is less than 1.5 years!