The Proof is in the Project: Cost & Performance of Built Passive Multifamily

With many states incentivizing housing built to the Passive standard, everyone wants to know: are Passive-certified multifamily buildings really achieving better energy performance? The answer is yes. With many built multi-family passive projects throughout the Northeast, there are now multiple occupied projects where we can look at actual energy performance data, sometimes over multiple years. Using Passive project data from built projects in MA and PA, we will compare post-occupancy performance and cost to similar above-code and code built projects. We will also share takeaways gleaned from applying this same comparative analysis to publicly available post-occupancy benchmarking data in Philadelphia and several case studies from Massachusetts and Vermont. Learn how passive is much more consistently hitting the range of performance we will need to decarbonize new buildings and hit state and national climate targets. Discuss simple strategies for collecting more and better data that can demonstrate whether projects are achieving superior energy savings and occupant comfort.

Session Chair(s): 

Event Time: 

Friday, May 7, 2021 - 3:30pm to 4:30pm

Room / Location:

CEU Information: 

Mass. CSL 1.0 hour Energy
4.5 credit-hour packets available from PHIUS, RESNET, and Mass. CSL

Learning Objectives:

  • Compare energy performance and construction cost of multiple built Passive multifamily projects to code and LEED Certified projects. Identify areas where there are differences in cost for construction.
  • Highlight why passive modeling is more predictive of energy performance than code or other green building standards.
  • Describe the difference between building loads and user-driven loads in passive projects.
  • Advocate for post-occupancy data requirements that demonstrate whether energy performance goals are being met in multifamily projects.

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