Energy Consumption Data Energy data is entered into ENERGY STAR Portfolio Manager based on invoices provided directly by the utility, and where applicable, electricity consumption data for the 2021 reporting period was based on Real Time Meter data from revenue grade meters. ESRT elected to utilize a combination of RTM data from a third-party metering vendor to ensure accuracy in reporting. Natural gas, steam, and fuel oil data was calculated directly from utility invoices. Tenant submetered electricity consumption is provided directly by third-party submeter providers. All energy data underwent third-party checks to ensure that data reported is as accurate and complete as reasonable. Based on CodeGreen’s Limited Assurance review, there is no evidence indicating that energy data submitted in public disclosures is not accurate and complete. GHG Emissions Data CodeGreen has reviewed applicable data and worked with ESRT to prepare a GHG inventory following GHG Protocol Corporate Account and Reporting Standard: Revised Edition guidelines. CodeGreen reviewed energy consumption data utilizing ENERGY STAR Portfolio Manager data and reported tenant sub-meter data to ensure proper allocation of fuel, district steam and base building electricity, tenant submeter and tenant direct-meter emissions across Scope 1, 2, and 3 GHG emissions in alignment with the GHG Protocol. Scope 1 emissions are classified as direct GHG emissions resulting from fuel oil and natural gas. Scope 2 emissions are classified as indirect emissions including electricity and district steam. Scope 3 emissions are classified as indirect emissions resulting from tenant direct and submetered energy consumption. Emissions factors and Global Warming Potentials were also verified. Based on CodeGreen’s Limited Assurance review, there is no evidence indicating that GHG data submitted in public disclosures is not accurate and complete. Water Consumption Data CodeGreen has reviewed applicable water data in ENERGY STAR Portfolio Manager against utility invoices and worked with ESRT to calculate absolute water consumption data for the portfolio of assets. Based on CodeGreen’s Limited Assurance review, there is no evidence indicating that water data submitted in public disclosures is not CodeGreen has reviewed applicable waste data in ENERGY STAR Portfolio Manager against Great Forest waste management data exports. Based on CodeGreen’s Limited Assurance review, there is no evidence indicating that waste data submitted in public disclosures is not accurate and complete. Exclusions CodeGreen has excluded the following energy and water meters from the Limited Assurance review, as utility invoices were unavailable for: Empire State Building Tenant Meters including Walgreens and Starbucks electric. Summary of Assertion Assurance Parameters Verification Approach Level of Assurance Limited Assurance Organizational Boundary Empire State Realty Trust Assets under Operational Control Geographic Boundary USA Inventory Period January 1, 2021 – December 31, 2021 Scopes Covered Natural Gas, Fuel Oil, Whole Building Electricity and Steam, Tenant Sub-metered/Direct Metered Electricity Emissions Covered CO 2 , N 2 O, CH 4 Protocols used for GHG Data Review WRI’s Greenhouse Gas Protocol Risks Analyzed Occurrence, Completeness, Accuracy, Cut-Off, Classification Types of Energy Sources Covered (Emissions Activities) Whole Building and Tenant Sub-metered/Direct Metered Electricity, Natural Gas, Fuel Oil, Steam Types of Water Sources Covered Whole Building Domestic Water Types of Waste Sources Whole Building Total Generated Waste, Total Landfilled Waste, Total Recycled Waste Assurance Criteria used for Verification Process ISO 14064-3: Greenhouse gases -- Part 3: Specification with guidance for the validation and verification of greenhouse gas assertions (2019) accurate and complete. Waste Generation Data
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