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Evolution of Building Performance Metrics

Presented by the IBPSA-USA Education Committee

Over the years, building performance metrics have undergone a significant transformation. Initially, metrics focused primarily on energy efficiency, measuring aspects such as energy consumption and carbon emissions. However, as sustainability and occupant comfort gained prominence, the metrics expanded to encompass a broader range of factors.

The aim is to understand this holistic approach which provides a more comprehensive understanding of a building’s performance and its impact on occupants and the environment.


Jamy Bacchus

Jamy is an Associate Principal at ME Engineers where leads their Building Performance group in North America. He is a mechanical engineer, energy modeler, policy analyst and sustainability consultant with nearly 30 years of experience designing building systems for green buildings and net zero energy projects. Jamy is the immediate past Chair of the USGBC’s Energy and Atmosphere Technical Advisory Group (EA TAG) to the LEED Rating System where he led discussions on LEED v5 proposals to better reflect the urgency around carbon. He is a voting member of ASHRAE’s new draft standard 242P for Calculation of Building Operational Greenhouse Gas Emissions. Jamy frequently presents at Greenbuild, IBPSA and ASHRAE on carbon and energy. 

Jared Landsman

 Jared Landsman joined E3 in 2021, where he works primarily on building electrification and decarbonization, from a technical, policy and economic lens. Jared has developed a number of models to forecast heat pump adoption, on both a regional and national scale, as well as help cities and states understand the consumer and utility impacts of building electrification. Jared also does work in campus decarbonization, helping universities achieve their net zero emissions targets. Prior to joining E3, Jared worked at the MEP engineering firm, Integral Group, leading the Building Performance team, with a focus on energy and carbon modeling, policy and guideline development, and demand forecasting. Jared holds an M.S. in Architecture, Building Science, and Sustainability from the University of California, Berkeley and a B.S. in Civil Engineering from Cornell University.

Jack Rusk

Jack Rusk is the Director of Climate Strategy at EHDD, an architecture firm with offices in San Francisco and Seattle. He works across projects at the firm to identify and implement climate positive design strategies. Jack also leads development of the Early Phase Integrated Carbon (EPIC) assessment, a web application for planning carbon reductions. Available for free and covering a range of carbon reduction measures, EPIC illustrates the potential for deep decarbonization in every project.

Jack is a graduate of the Yale School of the Environment and the Yale School of Architecture. In the past few years, he has published or presented research on ecosystem restoration, life cycle impacts of bio-based materials, urban hazard risk, and decarbonization policy’s consequences for health and social equity.


Jun 19 2024


11:00 am - 12:00 pm

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