Case Study: Hi-Noon Gas Station
This report summarizes the results of a recent Energy Audit and installation of Global Energy Savers at Sinclair Petroleum Hi-Noon gas station in Missoula, Montana. During the Energy Audit the amount of energy usage in amps will be measured before and after the installation of the Standard Power Perfect Box to the HVAC units and cooling units.
The measurements will be reported in amps and volts. The amp difference will be used to determine energy cost of the gas station prior to installation of the Standard Power Perfect Box using the formula below.
Amps X Volts = Watts
(Watts / 1000) = kWh
kWh are the usage units the power company charges for, therefore kWh X Rate per K = Energy Cost
On July 7th, 2009 Satic was commissioned by Sinclair Petroleum and Hi-Noon to install the Standard Power Perfect Box at the location of Mount and Russell in Missoula, Montana. All installations performed by master electrician Rick Curtis of Spectrum Technologies and all measurements were verified by Randy Heinrichs of NorthWestern Energy.
Using an amp measuring clamp, amp usage was measured on each AC unit prior to the install. Power was shut off and the install took about five minutes. Then the unit was turned back on and the amp usage was measured and the difference was calculated.
The percent in amp change will give us an example of the percent of energy saving Hi-Noon Petroleum will experience due to the installation of the Standard Power Perfect Box.
Wire three Standard Power Perfect Boxes into the four three-phase roof units. One carrier central AC unit model #48TMD009---501NB, and three Heatcraft refrigeration units; model #HCH029M23V, #MOH040D73CFT, #MOZ035L63GF.
A/C Unit Amp Usage Measurements
Central Air 3 Phase A/C Unit - Carrier Model #48TMD009 - 501NB 208 Volts 20 Amp
Reading before Install (20.11 Amps)
Reading after Install (18.57 Amps)
Result: 1.54 Amps less after installation of the Standard Power Perfect, 7.7% Savings
Large Walk-in Refrigerator Amp Usage Measurements
Heatcraft Refrigeration Products Larger Walk-in Cooler Model #HCH029M23U (3 Phase) - 208 Volts
Reading before install (7.53 Amps)
Reading after install (2.95 Amps)
Result: 4.58 amps less after installation of the standard power perfect, 60.1% savings
Walk-in Refrigerator units amp usage measurements
Heatcraft Refrigeration Products Beverage Walk-In Cooler Model #MOZ035L63GF (3 Phase) - 208 Volts
Reading before install (11.01 Amps)
Reading after install (9.84 Amps)
Result: 1.17 amps less after installation of the Standard Power Perfect, 10.6% savings
Heatcraft Refrigeration Products Beverage Walk-In Cooler Model #MOH040D73CFT (3 Phase) - 208 Volts
Reading before install (12.18 Amps)
Reading after install (11.64 Amps)
Result: .54 amps less after installation of the Standard Power Perfect, 4.4% Savings
Results of Implementation
From the attachments you can see our instant reads from the gas station install on the roof for each unit was, 4.4%, 7.7%, 10.6% & 60.1%. This is a weighted average of 15.5% savings on amp usage just on the outside installation, this doesn't include the savings from the units inside. The average is weighted based on total amps used for each unit and the percent each unit saved.
15.5% amp reduction X (208 Volts X 4 units) = 129 Watts saved
129 Watts saved / 1000 = .129 kWh saved
12.9% usage reduction in kWh on average from an install only on four A/C units that run at 208 Volts each.
12.9% Savings on the supply and delivery energy cost!