2023 Sustainability Report: Empire State Realty Trust

23

ENVIRONMENTAL

INTRODUCTION

SUSTAINABILITY OBJECTIVES AND STRATEGY

SOCIAL

POLICIES AND TRANSPARENT REPORTING

APPENDICES

GHG Emissions Performance

2023 GHG EMISSIONS 5 (MTCO 2 e)

MEASURING SUPPLY CHAIN EMISSIONS 6 In 2023, ESRT began participation in the Climate Disclosure Project (CDP) Supply Chain program to engage our full supply chain to track, measure, and report the impact of upstream GHG emissions. The program enables primary data collection for assessment of supplier contribution to Scope 3 emissions and will help our suppliers manage their own environmental targets. ESRT is the first REIT to participate in the program globally . The data below represents 2022 Scope 3 upstream emissions categorized by industry group. 96% of 2022 total supply chain spend is represented below with the remaining 4% of upstream spend included in our Scope 1 or 2 emissions reporting.

GHG EMISSIONS

Scope 3 Category 13: 27,710 Commercial: 23,659 Multifamily: 4,051

Scope 1: 3,178

Commercial: 3,178 Multifamily: 0

48,541 MTCO 2 e

GHG emissions were calculated in accordance with the WRI GHG Protocol, and verification of the data contained herein was conducted in accordance with ISO 14064 Part 3. A similar approach and methodology was utilized to calculate and validate energy, water, and waste data. Sharp increase in 2023 emissions are due to increased eGRID factors 28.61% from 2020 to 2022 which are now reflected in our 2023 emissions. When we adjust 2022 emissions retroactively to reflect the updated eGRID emissions factor for 2022, 2022 total emissions becomes 51,371 MTCO2e resulting in a 5.5% decrease from 2022 to 2023.

Scope 2: 17,653

Commercial: 17,652 Multifamily: 1

7%

increase in emissions compared to 2022

LIKE-FOR-LIKE GHG EMISSIONS 5 (MTCO 2 e)

2020 2021

2022

4,643

All other 48 industry groups 18%

2023 Commercial

2023 Multifamily

6,888 6,800

Scope 1

3,127

3,128

Non-residential building construction 34%

Other professional services 3%

18,491

21,002

Scope 2

14,048

17,584 17,584

Furniture 6%

16,722

17,341

Scope 3

23,936

Glass products 14%

Real estate services 6%

23,659

3,539

27,198

Concrete products 7%

Electrical equipment 12%

5 ESRT commercial office utilization increased approximately 30% over a five-day average (Monday–Friday) and three-day average (Tuesday–Thursday) in 2023 compared to 2022. This occupancy increase contributes to increased emissions, energy and water usage, and waste generation. The data above represents the utility usage of our office and multifamily portfolio. Data is absolute, and is not normalized for weather, occupancy, or other variables which impact usage and are not based on the impacts of efficiency efforts. GHG Emissions Intensity is determined using location-based emissions for the NYC region for Scopes 1, 2, and 3. Sharp increase in 2023 emissions are due to increased eGRID factors 28.61% from 2020 to 2022 which are now reflected in our 2023 emissions. When we adjust 2022 emissions retroactively to reflect the updated eGRID emissions factor for 2022, 2022 emissions intensity becomes 5.49kgCO2e/ft2 resulting in a 9.1% decrease from 2022 to 2023. Like-for-like metrics include properties owned for full calendar year 2022 and 2023. 6 The emissions per industry are based on CDP conversions of spend to emissions equivalent.

EMPIRE STATE REALTY TRUST: 2023 SUSTAINABILITY REPORT

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