AC Savings Estimator

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Download a version of this calculator in Excel.

This estimator provides an annual energy cost comparison between a standard and high-efficiency AC units. This tool is designed for small commercial (5-30 ton) split and packaged systems.

Required fields are shown in red

Click here to preview a sample project.

Project
Utility
If you're unsure which rate to use, select a "Vermont Average" rate by specifying "Vermont Average Rates" in the Utility box, above. Rate
Please select a utility to get a list of available rates.

Equipment description, manufacturer, and model number are optional fields.
Option 1		Option 2
Standard Efficiency		High Efficiency
Equipment Description

Manufacturer

Model Number

EER or SEER (Energy Efficiency Ratio or Seasonal Energy Efficiency Ratio) is the ratio of the rate of cooling (BTU/hr) to the power input (watts) at full-load conditions, or averaged over a season. The power input includes all power to compressors, fan motors, and controls.

EE/SEER

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System Cost**

Equipment size

Tons

Hours of operation are the normally-occupied hours for the facility. If the facility is open around the clock on a given day of the week, select the button in the "24 hrs" column. If the facility is closed on a given day of the week, select the button in the "closed" column. Otherwise, specify opening and closing times.

Hours of Operation

Day

24 hrs

Closed

Specific hours

MON

From to

TUE

From to

WED

From to

THU

From to

FRI

From to

SAT

From to

SUN

From to

** If the "System Cost" box is left blank, no simple payback results will be provided. This figure is used only for the payback calculation.

If you need help or more information, please e-mail us your question.