Providing Sound Science to Support Source-to-Site Energy Efficiency Standards

GTI is working to inform code and regulatory initiatives and the public review process regarding total fuel cycle impacts. With support from the Carbon Management Information Center (a gas industry collaborative), GTI has provided important technical information regarding the benefits of source energy—which measures energy consumption from the point of origin to the point of use and includes energy losses that occur with conversion and distribution—and greenhouse gas methodologies. In 2011, the U.S. DOE announced a statement of policy adopting full-fuel-cycle measures of energy use in its Energy Conservation Standards Program used for national impact analyses. Source energy is now included in the final version of the International Green Construction Code (IgCC), published in the spring of 2012. GTI is working with the American Society of Heating, Refrigeration and Air-Conditioning Engineers (ASHRAE) to include source energy in a suite of major building codes.

Award-Winning Energy Planning Analysis Tool (EPAT)

The publicly available Energy Planning Analysis Tool (EPAT) software provides regional U.S. estimates of site and full-cycle energy consumption, capital and operating costs for several residential energy applications (e.g. space heating, water heating, cooking, clothes drying and other home energy uses) and full-cycle emissions (e.g. NOx, CO2, methane and others). The software allows the user to select a wide range of residential technologies for a pair-wise comparison of two home energy use scenarios: baseline and alternative. The pair-wise analysis can be repeated with different assumptions to craft a range of scenarios.

The tool won the Domestic Utilization Innovation Award at the 2018 World Gas Conference (WGC) and was used as a resource on a paper comparing direct gas use and electrification in California and New York.

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