APPENDICES
INTRODUCTION
SUSTAINABILITY OBJECTIVES AND STRATEGY
ENVIRONMENTAL
CORPORATE CITIZENSHIP
GOVERNANCE AND TRANSPARENT REPORTING
ENERGY MANAGEMENT
Code
Accounting Metric
2024 Disclosure
IF-RE-130a.1
Energy consumption data coverage as a percentage of total floor area, by property subsector
Total energy consumption data coverage from the Empire State Realty Trust operational portfolio, as a percentage of total/gross floor area was equal to 100% in 2024.
(1) ESRT’s total 2024 energy consumed by portfolio area with data coverage was equal to 148,965 MWh.
IF-RE-130a.2 (1) Total energy consumed by portfolio area with data coverage, (2) percentage grid electricity, and (3) percentage renewable, by property subsector
(2) The percentage of total energy corresponding to grid electricity for all property types was 100%.
(3) The percentage of total energy corresponding to onsite renewable energy for all property types was 0.0%, however ESRT purchased 86,880 MWh of Renewable Energy Credits from wind power to offset our electricity consumption and purchased +9000 acre forest in Ohio reducing annual emissions 137,185 tons of carbon dioxide.
Total like-for-like change in energy consumption for the ESRT operational portfolio was 4.71% from 2023-2024.
IF-RE-130a.3 Like for like percentage change in energy consumption for the portfolio area with data coverage, by property subsector IF-RE-130a.4 Percentage of eligible portfolio (1) has an energy rating and (2) is certified to ENERGY STAR, by property subsector
(1) 100% of ESRT’s operational office, retail, and multifamily portfolio is benchmarked using ENERGY STAR Portfolio Manager. (2) 93% of ESRT’s entire portfolio obtained ENERGY STAR Certification and 100% of ESRT’s NYC office portfolio obtained ENERGY STAR Certification in 2024. ESRT utilizes Real Time Energy Management (RTEM) to integrate building energy management considerations into property investment analyses and their operational strategy. Real-time energy consumption feedback allows ESRT to realize cost and energy savings opportunities. ESRT has partnered with The New York State Energy Research and Development Authority (NYSERDA) to implement RTEM incentives for control upgrades, chiller plant optimization, tenant energy management, tenant air handling units, lighting controls, plug load monitoring, and ongoing services that use predictive analysis and diagnostic. ESRT has also developed an Energy and Greenhouse Gas Management Policy that holds Portfolio Managers, Property Managers, Tenant Services Coordinators, and the Engineering Managers responsible for knowing their best practices and implementing the policy where possible for all assets under ESRT’s control. Portfolio managers are required to request updated Demand Response Plans from managers quarterly. The Energy Management Policy entails best practices such as tracking consumption through ENERGY STAR Portfolio Manager (ESPM), and conducting building energy audits that meet both the requirements of the ASHRAE preliminary energy use analysis and an ASHRAE Level 4 energy survey analysis identified in the ASHRAE Procedures for Commercial Building Energy Audits or equivalent.
IF-RE-130a.5 Description of how building energy management considerations are integrated into property investment analysis and operational strategy
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2024 SUSTAINABILITY REPORT
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