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NYC Sustainable Buildings Local Laws: What You Need to Know in 2024

2024 is a big year for building owners in NYC, and it's time to buckle down and tackle the various sustainability and energy-related local laws coming into effect. The changes you make this year to your facilities will have a major impact on your organization's compliance with regulations and potential fines. The Stone House Group is here to help you navigate these multifaceted regulations and comply in a timely manner.

Meeting that demand requires a clear understanding of the technologies reshaping the industry and how to apply them in the real world. We’ve identified several emerging technologies that should be on every Facility Manager’s radar. We’ve categorized them by their primary impact: Energy and Operations.

March 20, 2024
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Piloting the Future of Campus Operations: Emerging Technologies for the Modern Campus

PART 1: ENERGY

Building-Integrated Photovoltaics (BIPV)

A new form of solar panels is officially entering the US market, offering a more aesthetically pleasing alternative to traditional rooftop solar. The European company Roofit.Solar focuses on a technology called building-integrated photovoltaics (BIPV), where the roofing material itself is the solar panel. These integrated systems minimize visual impact, which is often a consideration for historic buildings or aesthetically sensitive campuses.

Air Source Heat Pumps (ASHP)

Heat pump technology has undergone a significant transformation, overcoming past performance limitations, especially in colder climates. Recent studies, such as those conducted by organizations like the National Renewable Energy Laboratory (NREL), confirm their viability and efficacy even in regions with harsh winters, making them a crucial technology for decarbonization efforts nationwide.

Geo-exchange / Groundsource Heat Pumps (GSHC)

Geo-exchange (or ground source heat pump) systems remain one of the most effective ways to heat and cool facilities using the stable temperature of the earth, providing high-efficiency heating/cooling regardless of external weather conditions. The financial viability of these systems has been significantly boosted by the continued availability of federal and state tax credits, which can substantially lower the first-cost hurdle, making the long-term ROI even more attractive. Innovation in this area focuses on optimizing the drilling process and improving heat transfer efficiency to reduce installation costs and land usage. For instance, Minnesota-based Darcy Solutions has pioneered "turbo-charging" mechanisms that utilize the high thermal conductivity of moving groundwater. By drawing heat from an aquifer rather than static soil, these systems allow for significantly fewer wells to achieve the same energy output, maximizing efficiency while minimizing site disruption.

PART 2: OPERATIONS

Open-Standard Intelligent Controls

The next generation of Building Automation Systems (BAS) is moving toward smarter, more flexible control architectures. New, non-proprietary controllers, such as those utilizing the EnOcean standard, are entering the market, offering a cheaper and more adaptable alternative to complex, expensive proprietary BAS. While the EnOcean standard itself does not incorporate artificial intelligence (AI), this shift gives facility managers more freedom in system configuration, allowing them to leverage AI and machine learning capabilities to control systems through a smart server. This setup allows for the autonomous reconfiguration of system points and optimization of performance, constantly fine-tuning a building's operation for peak efficiency and minimal energy waste.

Fault Detection and Diagnostics (FDD) Platforms

The next step beyond intelligent controls is using data analysis to constantly monitor and diagnose the operational health of your building portfolio. These platforms connect directly to your existing Building Automation System (BAS) to continuously ingest real-time operational data (e.g., temperatures, setpoints, valve positions, equipment runtimes, etc.). For example, a platform like ClockWorks utilizes proprietary FDD algorithms to automatically detect and diagnose operational faults and inefficiencies, turning raw data into opportunities for low-cost or no-cost corrections.

Smart Lock Cylinders

These modern systems replace traditional keyways with battery-powered mechanisms, providing detailed audit trails and simplifying access control for staff and visitors. Cutting-edge systems now explore "direct line of sight" non-connected power charging, eliminating the need for complex hardwiring at every door. 

3D Scanning for As-Built Documentation

Capturing accurate "as-built" conditions for existing facilities has traditionally been a time-consuming and expensive process, often involving professional surveying or manual measurements. Tools like Polycam (a mobile and desktop application) are democratizing this process by leveraging LiDAR and photogrammetry capabilities found in modern smartphones and tablets. The SHG team can partner with your facilities staff to rapidly scan rooms, entire floors, or building exteriors to generate accurate, georeferenced 3D models and 2D floor plans. This allows for near-instantaneous documentation of spaces for renovation planning, capital project management, and simply maintaining a digital twin of the campus.

Is Your Campus Ready for a Pilot?

NYC Sustainability Local Law Compliance

The New York City government began responding to climate change in the early 2000’s, passing various local laws to reduce greenhouse gas (GHG) emissions in the city and eventually achieve carbon neutrality. Many of these local laws target building owners and property managers, as buildings make up about two-thirds of the total greenhouse gas emissions in NYC. The Climate Mobilization Act (Local Law 97 of 2019) set the most ambitious standards yet for emissions reductions, setting mandated emissions limits for buildings that will become stricter, and result in higher penalties, over the next decades. All of the sustainability local laws fit together and are often interdependent; performing retro-commissioning (LL87 of 2009), for instance, will result in more efficient HVAC and controls systems, thereby reducing energy consumption (LL84 of 2009) and GHG emissions (LL97 of 2019).

Key Local Laws and Compliance Deadlines
  • Benchmarking (LL84 of 2009, LL133 of 2016)
    • Applies to buildings over 25,000 SF, or two or more buildings on the same tax lot that together exceed 100,000 SF
    • Includes the collection and reporting of building energy and water usage through Energy Star Portfolio Manager
    • Due May 1st annually
  • Building Energy Efficiency Grades (LL33 of 2018, LL95 of 2019)
    • Requires the Building Energy Efficiency Rating (grade) to be physically posted at a public location
    • Score is dependent on energy usage and goes hand-in-hand with benchmarking
    • Due Oct 31st annually
  • Greenhouse Gas Emissions Reporting and Compliance (LL97 of 2019)
    • Applies to buildings over 25,000 SF or two or more buildings on the same tax lot that together exceed 50,000 SF
    • Requires demonstrated compliance with GHG emissions limits
    • Begins in 2024 and becomes stricter starting in 2030, with steep penalties for emissions over target
    • Must work to reduce emissions through energy efficiency and potentially renewable energy projects
    • Due May 1st annually (starting 2025)
  • Energy Audits and Retro-Commissioning (LL87 of 2009, LL132 and 134 of 2016)
    • Applies to buildings over 50,000 SF
    • Certified professional must conduct an ASHRAE Level 2 Energy Audit and Retro-Commissioning (RCx)
    • Due once every 10 years, with due dates staggered depending on tax lot number
  • Lighting Upgrades & Submetering (LL88 of 2009, LL132 & 134 of 2016)
    • Applies to buildings over 25,000 SF or two or more buildings on the same tax lot that together exceed 100,000 SF
    • Requires that lighting be upgraded to meet NYC Energy Conservation Code by Jan 1st, 2025
    • Submetering of electric is mandatory for commercial tenants exceeding floor space limits
Why Should You Care About These Laws?

In addition to being necessary for compliance and avoiding fines, the above laws can provide additional benefits to your building and organization:

  • Financial Benefits: Sustainable building practices can lead to lower operating costs through reduced energy and water utility consumption. Investing in modernization projects and practicing proactive facilities management can ensure efficient building operations, leading to long-term cost savings. Best practices in operation and maintenance can prevent costly repairs from deferred maintenance burdens down the road.
  • Corporate Social Responsibility: Many businesses and organizations are committed to sustainability as part of their corporate social responsibility (CSR) efforts. Complying with the aforementioned local laws demonstrates your organization's commitment to CSR and to building stewardship, engaging tenants/occupants who value environmental, social, and governance (ESG) principles.
  • Healthy Buildings: Complying with NYC sustainable building local laws can result in  healthier buildings by reducing energy consumption, improving indoor air quality, and creating a more comfortable and productive environment for occupants. A healthy building can lead to improved employee morale, productivity, and tenant satisfaction
How The Stone House Group Can Help

The Stone House Group has been providing energy and sustainability consulting services such as energy audits, GHG accounting, energy procurement, building commissioning, and energy benchmarking since our company's inception in 1999. We have a deep understanding of the requirements of NYC's sustainable building local laws and have been helping clients such as Riverdale Country School and Brooklyn Friends School comply with these regulations for several years. Our qualified associates take a holistic approach to our clients’ energy and sustainability needs, considering all aspects of the campus operations and the institutions’ goals.

If you are looking for a partner to help you comply with NYC's sustainability local laws, The Stone House Group is the right choice. We have the experience, expertise, and commitment to help you achieve your compliance goals. Contact The Stone House Group today to learn more about how we can help you comply with NYC's sustainability local laws.

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Source:

Wilson, E. J. H., Munankarmi, P., Less, B. D., Reyna, J. L., & Rothgeb, S. (2024). Heat pumps for all? Distributions of the costs and benefits of residential air-source heat pumps in the United States. Joule, 8(4), 1000–1035. Link: https://docs.nlr.gov/docs/fy24osti/84775.pdf

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