ASHRAE Journal - August 2022 - 36
TECHNICAL FEATURE
Developing Geothermal
Screening Web Tools
BY CHARLES C. COPELAND, P.E., FELLOW/LIFE MEMBER ASHRAE; TRISTAN SCHWARTZMAN, P.E.
The already growing priority of reducing carbon emissions in the United States and
beyond will only increase, as dramatically changing weather patterns underscore
the urgency of combating climate change. A vital tool in that context-the geothermal
screening web tool-reached an important milestone in July 2021, when New York's
Westchester County announced the replication of the first such tool created for the
City of New York in 2018. Insights drawn from the authors' first-hand knowledge of the
development of both of those tools shed light on how this now-replicable innovation
can best support reductions in carbon emissions broadly. In this article we share those
insights in hopes that other localities in the United States and beyond will create their
own online tools-modeled after these-to evaluate the local feasibility of geothermal
technologies, which can be up to five times more efficient than fossil fuel systems.
New York City and State, like other localities elsewhere,
have increasingly adopted more exacting laws
and strategies to mitigate carbon emissions. For example,
New York City's Local Law 95 requires most buildings
post letter grades on their front doors, based on
their energy use per square foot; Local Law 97 mandates
fines beginning in 2025 for buildings over 25,000 ft2
(2223 m2) using excess energy/ft2 (m2) over increasingly
stringent limits. These fines escalate significantly
up to 2040. Some commercial buildings will incur fines
well over a million dollars per year if they do not curb
energy use-a potentially complicated task, especially in
business buildings, where property owners have limited
control over the tenants' use and misuse of energy.
To our knowledge, this is the most stringent carbon
emissions law involving fines of this type in the United
States.
In 2016, New York City passed Local Law 6, which
required the Department of Design and Construction
(DDC) to develop, and make publicly available, a
prefeasibility screening tool to assess the viability of
installing a geothermal system for all types of buildings
in all five boroughs of the city. That tool was created
in 2018, under the guidance of the Mayor's Office
of Sustainability (MOS) and DDC, by drawing upon
projected design performance, case studies, publicly
available geological data from the United States
Geological Survey (USGS) and governmental lot and
Charles C. Copeland, P.E., is president and CEO, and Tristan Schwartzman, P.E., is principal, director of energy services, at Goldman Copeland.
36
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ASHRAE Journal - August 2022
Table of Contents for the Digital Edition of ASHRAE Journal - August 2022
Contents
ASHRAE Journal - August 2022 - Intro
ASHRAE Journal - August 2022 - Cover1
ASHRAE Journal - August 2022 - Cover2
ASHRAE Journal - August 2022 - 1
ASHRAE Journal - August 2022 - Contents
ASHRAE Journal - August 2022 - 3
ASHRAE Journal - August 2022 - 4
ASHRAE Journal - August 2022 - 5
ASHRAE Journal - August 2022 - 6
ASHRAE Journal - August 2022 - 7
ASHRAE Journal - August 2022 - 8
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ASHRAE Journal - August 2022 - Cover3
ASHRAE Journal - August 2022 - Cover4
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