Nidhi Khanna, C.E.M., LEED AP BD+C, GGP

29-Sep-2017, 10:30 - 11:00AM

Session: Net Zero/ GreenHouse Gas Reduction

Track G | High Performance Buildings and Communities

One City Built to Last- New York City's Road for a Low Carbon Future

Nidhi Khanna, C.E.M., LEED AP BD+C, GGP
Senior Energy & Sustainable Consultant
HDR, Inc.



1. To understand the methodology and structure of the study focused on identifying GHG emission reduction strategies from the building sector to meet the “80 by 50” goal: 80% GHG reduction by 2050. 2. To understand how buildings stock was classified, data was collected and how retrofit pathways were determined and evaluated. 3. To understand how climate change was predicted and accounted for in the study. 4. To understand the challenges and successes the team had while conducting the study.


In September 2014, Mayor Bill de Blasio announced the “80 by 50” target for the City of New York—a bold initiative designed to address climate change issues by targeting buildings’ energy performance. Currently, energy consumption of the city’s buildings accounts for nearly three-quarters of all citywide GHG emissions. The imperative to identify CHG emission reduction strategies was clear. The first part of this session will examine Mayor de Blasio’s objectives for a technical study of reduction strategies, including an overview of stakeholder involvement during the study. Representative of the firm that led the comprehensive technical study for the NYC Economic Development Corporation (NYCEDC), will walk attendees through important considerations, including how the buildings were classified (given that more than one million buildings exist in the city) and how city-wide energy consumption of the buildings was determined. The presentation will also focus on technical details of the study. Attendees will learn important insights into how the existing building parameters were collected and challenges faced during the process. Further, details regarding the analysis conducted for predicting the climate change impacts and future energy consumption of the building stock will be discussed, as well as an overview and the results of the retrofit pathways for the existing building stock that were developed for achieving the deep carbon reduction goals will be provided. Lastly, the presentation will explore the methodology used for determining the GHG emissions from the building sector for both the BAU (Business As Usual) case as well as for the year 2050 case will be presented. It will conclude with a discussion of the challenges and lesson learned during the study, and an overview of the policies and recommended next steps for achieving the targeted deep carbon reduction goal.



Track: G High Performance Buildings and Communities | Session: Net Zero/ GreenHouse Gas Reduction


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