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.

Retrofitting vacant and underutilized historic buildings to PHIUS standards leverages an existing building’s embodied carbon, which combined with low carbon and carbon storing materials, can transform our historic buildings into carbon sinks. With careful consideration, the Federal Historic Tax Credit program can provide an additional source of funding for these ambitious Passive House projects. Currently under construction, Moran Square is one of the first PHIUS Historic Tax Credit projects in the US. The site includes a historic firehouse, a vacant lot, and historic three-story building.

Pioneer Valley Habitat for Humanity, Simple City Studio, and VEIC present PV Habitat’s award-winning experiment in affordable net-zero housing. Using data from a recent build, PV Habitat compares build time, cost, and energy efficiency between modular and stick-built construction, focusing on the trade-offs between affordability and energy efficiency, and examining where design can simplify or complicate a build.

Domestic hot water doesn’t get the attention it deserves, so this session will be talking about nothing but it! Decarbonizing DHW in multifamily settings is full of challenges, especially in a heating-dominated cold climate. We will be discussing decarbonization strategies from new construction and existing buildings, central and decentralized systems, and touching on adjacent topics like loads and futureproofing.

Current ventilation standards are based on odor instead of health. One cannot smell healthy air. Ventilation standards disfavor air quality in smaller residences and multi-family dwellings while excessively ventilating larger homes. Ventilation impacts our health, cognition, sleep, and disease transmission. This session provides background on today's ventilation standards and recommendations for creating healthy indoor environments. The Covid Safe Space IAQ calculator for reducing SARS-CoV-2 transmission in buildings is introduced.

New York State’s carbon-neutral policies and on-the-ground programs are the leading edge in the Northeast and provide a model for all communities. Come be informed and inspired by NYSERDA’s upcoming Carbon Neutral Buildings Roadmap. As part of Governor Cuomo’s Green New Deal for New York, NYSERDA has been spearheading the development of an overarching framework for decarbonizing New York’s buildings by 2050. This presentation will outline the policies and programmatic areas that will achieve radical reduction in the carbon emissions of buildings.

Sheridan Small Homes is a project that originated in the classroom at the Rhode Island School of Design. The two passive house prototype student designs were created as a solution to increase affordable housing and make use of 200 undersized vacant lots in Providence, RI. The homes were funded through a combination of energy grants and incentive programs and were built by an apprentice training program that provides valuable work experience and career opportunities for low-income diverse community members.