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Madison, WI (January 28, 2010)

Energy Center of Wisconsin

Energy Center launches Back-of-the-Envelope Calculator
Free tool shows energy interactions in buildings


photo of Back-of-the-Envelope CalculatorEnergy consumption in buildings is a complicated set of interactions among building components. When it comes to understanding energy efficiency opportunities, it’s useful to see how changing one component affects the whole.

Energy engineers at the Energy Center of Wisconsin developed the Back-of-the-Envelope Calculator to provide greater initial insight into the energy usage and environmental impacts of a proposed commercial building project.

The calculator is available for free download and lets you see real-time energy connections among building components, isolate the effects of a change to a single energy parameter or produce concept-level energy estimates. Not only can you see real-time energy connections, but you can calculate total CO2 emissions for a building from both electricity and gas consumption.

view the BOE Calculator online

The recently upgraded Back-of-the-Envelope Calculator is more versatile as well. It can now be used to analyze multiple-story buildings, instead of just a single-story building.

Download the Back-of-the-Envelope Calculator!



The Energy Center of Wisconsin is an independent nonprofit that explores ideas and solutions to energy challenges. Based in Madison, the Energy Center conducts objective research to better understand how consumers use energy and to identify barriers that may prevent more efficient use. Initiatives include design services and continuing education for architects, engineers and builders and field research to provide insight on improving the performance of new and existing buildings.

Contact: Dave Vigliotta, Communications Manager, Energy Center of Wisconsin
608.238.4601 x143  |  dvigliotta@ecw.org



© 2010 Energy Center of Wisconsin  |  455 Science Drive, Suite 200, Madison, WI 53711  |  www.ecw.org