Energy Calculators

Union Gas offers a variety of energy calculators to help you compare energy costs and make informed energy decisions for your business. Access these free and easy-to-use calculators below to convert one unit of measure to another, compare boiler fuel costs, calculate air emissions from natural gas combustion, analyze energy losses associated with boiler operations and more.

Easy to use, Actionable Results

Energy Target is Union Gas' energy savings calculator for business customers. This calculator has been designed for businesses to help identify energy saving opportunities regardless of business type or energy conservation expertise. In less than 10 minutes, assess your business’ natural gas usage and receive actionable recommendations for long term energy savings. Energy Target is a safe and secure calculator created for Union Gas by EnVinta Corporation, and it meets strict security and privacy policies.

Getting started: All you need to get started is your business information, building square footage, annual natural gas costs and knowledge of the types of natural gas equipment currently in use.

Your Energy Target Report: Upon completion, you will receive a recommendation report indicating natural gas saving opportunities, recommended Union Gas energy efficiency programs and incentives, a benchmark report indicating how your responses compare to other businesses like yours and links to our programs, application form, and feedback.

Find your Energy Target today

Emissions Calculator

Natural Gas Emissions Calculator (Canadian Energy Partnership for Environmental Innovation)

This tool is an Excel spreadsheet that can be used to calculate air emissions from natural gas combustion. These values can be helpful for reporting to the 2003 National Pollutant Release Inventory (NPRI).

An example of a conversion using this calculator is: GJ to 1000 m3 or Mcf to GJ.

Download This Calculator

US Department of Energy

This Department of Energy page contains a number of different energy related software applications. With the right know-how, you can use these powerful tools to help identify and analyze energy system savings opportunities in your plant. Sample topic areas include:

  • Plant Wide
  • Motor-Driven
  • Steam
  • Process Heating
  • Data Centers
View these software tools

The Engineering Toolbox Calculators

This website contains various resources, tools and information that you can use to optimize your technical applications. Sample topics include:

  • Combustion
  • HVAC Systems
  • Insulation
  • Piping Systems
  • Steam & Condensate
Go to These Calculators

Greenhouse Calculators

Flower & Vegetable—CO2 and Heating Cost Calculator

To help save on costs, growers can generate CO2 from their natural gas boilers. To see how much money you can save, check our CO2 and heating cost calculator. It allows you to compare the cost of heating and generating CO2 with natural gas to the cost of burning #6 oil and buying liquid CO2.

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Boiler Calculators

Boiler Fuel Cost Comparison

The boiler fuel cost comparison tool allows you to compare the price of natural gas and #6 fuel oil while taking into account thermal and parasitic losses associated with each fuel firing. By comparing the true fuel costs, you can select the fuel that is most economical for you to use.

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Boiler System Energy Loss Calculator
(Natural Resources Canada)

Natural Resources Canada has developed an online Boiler System Energy Loss Calculator. This tool is designed to help managers analyze the energy losses associated with boiler operations fired by natural gas and fuel oil.

Go to This Calculator