Energy
Savings Payback Calculator
This sample ROI compares installing a traditional transformer
in a new building vs. an E-Factor transformer |
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Project Description: |
New Project |
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Date: |
01-Nov-04 |
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Data Entry |
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Transformers on Project |
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% Load during normal operating hours |
35% |
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Quantity |
kVA |
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% Load outside operating hours |
20% |
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15 |
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Equipment operating hours/day |
10 |
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30 |
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Equipment operating days/year |
260 |
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45 |
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kWh rate |
$0.06 |
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75 |
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Demand rate ($/kW/mo.) ex. $10.00 |
$5.00 |
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1 |
112.5 |
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Load Power Factor |
0.75 |
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150 |
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% additional cooling losses |
36% |
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1 |
225 |
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Nonlinear Loss Multiplier |
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300 |
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Other transformer linear efficiency & loss multiplier |
97.5% |
2.0 |
1 |
500 |
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E-Factor Nonlinear Efficiency |
98.0% |
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other kVa |
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| Energy Cost Analysis
(calc.) |
Annual |
kW Losses in |
kW Losses outside |
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Operating Cost |
Normal Operation |
Operating Hours |
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Traditional Transformers |
$6,722 |
15.7 |
9.0 |
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E-Factor Transformers |
$2,607 |
6.1 |
3.5 |
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Annual Energy Savings with E-Factor |
$4,166 |
9.6 |
5.5 |
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Estimated Annual Power Quality Savings |
$2,000 |
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Life Cylce Savings & Payback |
First Cost |
Operating |
Total Hours |
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Traditional Transformers |
$15,700 |
$218,062 |
$233,762 |
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E-Factor Transformers |
$25,946 |
$65,167 |
$91,113 |
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Savings |
($10,246) |
$152,895 |
$142,649 |
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Payback on Incremental Cost |
1.68 years |
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Summary of Environmental Benefits |
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Annual Reduction in Greenhouse Gases |
44 tons of CO2 |
341 Kgs of SO2 |
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(Per EPA) |
141 tons of coal |
147 Kgs of NOx |
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Equivalence |
8 Acres trees planted |
6 homes heated |
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6 Car Emissions |
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Have an E-Factor representative
help you calculate the payback for your application, call (800)
853-8265 |
