Additional Benefits
The site is located in a high extreme heat and flood zone requiring a thoughtful, resilient building design to ensure long-term equitability for the building and the surrounding community. Consequently, all utilities and operational and maintenance areas are located on above-grade floors, even though this reduces usable residential floor area. The first floor is elevated in accordance with the NYC’s Climate Resiliency Guideline sea level rise adjustment, which is about 6 feet above the adjacent site grade. Passive House design allows for passive survivability during grid outages.
The project team also is exploring a variety of innovative scope measures including installation of a geothermal system, building management systems, and voltage management systems. The team will also identify ways to reduce embodied carbon through material selections.
The Horizon of Affordable Efficiency
The Beacon’s development, design, and construction teams have been working in tandem to meet the project’s sustainability goals in the most effective—and most cost-considerate—manner since the project’s conception. With continuous, bi-weekly meetings all stakeholders are participating in a review process that informs the methodology and direction of decision making, leveraging holistic experience with a diverse range of expertise. The collective project team has experience implementing and delivering affordable, Passive House-quality, NYC projects. Ultimately, the Beacon’s pathway to Passive House delivery is relying on tried and tested principles that PCA has found best balance performance, feasibility, and cost. Such strategies can include: limiting custom detailing and instead prioritizing repetition for building efficiency; optimizing installation protocols for a specific site’s conditions to minimize installation schedules and subsequent cost; and ongoing energy modeling and design analytics to inform where impactful value engineering Is feasible without a critical performance impact.
The BOE award is assisting PCA to further its investigations of strategies to increase the affordability of efficient housing by controlling the costs of electrifying buildings (such as batteries charged by a PV system and time-of-use rates), using Beacon as a case study for future projects throughout NYC. The study will target demonstrating how fully electrified buildings can control capital and operational costs, even in municipalities with prohibitively high electric rates. This research, combined with Passive House methodologies, will lead to an efficient, optimized housing with an emphasis on a low-embodied carbon approach to carbon-neutral-ready buildings, delivering resiliency, best-practice indoor air quality and occupant health, and equitable housing.
The team is also looking for opportunities to work with manufacturers on optimizing performance of individualized heat pumps and strengthening detailing and on-site quality control of air sealing. PCA is working to overcome the retrofit challenges arising from increased cost of bespoke detailing conditions by educating builders on high performance detailing, demonstrating methods through required mock-ups, and designing with acceptable tolerances to minimize unique conditions.
From One Building to Many
We understand the critical role that smart retrofits of the existing building stock play in our path to a carbon-neutral future. We know we need to step up our reductions in the operational carbon emitted from our existing buildings, while simultaneously being fully conscious that embodied carbon is a significant driver of our total carbon footprint and has a particular impact on achieving significant carbon reductions in the near future. As community-minded designers, we also value maintaining the diversity of our building stock that has been slowly developed with slow growth over the past several centuries.
In this context, PCA has been researching the viability of the Dutch Energiesprong approach to deep energy retrofits. As NYSERDA-certified RetrofitNY solution providers, we are seeking cost-effective solutions that ‘wrap’ our buildings in new, energy-efficient facades, while upgrading to high efficiency electrified MEP equipment and providing optimized occupant health and comfort.
At this moment, we are on the verge of taking our conceptual research on this approach to real-world projects. Working primarily in affordable housing, we’re interested in a community-based design approach that engages building residents and creates aesthetic responses that embody the values of its residents. On the technical side, we are tackling issues of zoning, encroachments, and implementing new heating, cooling, and ventilation solutions in occupied buildings, while maintaining Passive House levels of insulation and air sealing. As these projects move from concept through design and into construction, we look forward to sharing more information about design challenges and performance with the building industry.