ESR-REIT Annual Report 2024 169 APPENDIX A: METHODOLOGY SUMMARY This section outlines the scope, definitions, methodologies and assumptions used in calculating ESR-REIT’s ESG data. Environmental Control approach ESR-REIT refers to the operational control approach as per the GHG Protocol Corporate Standards to consolidate environmental information. This requires ESR-REIT to account for 100.0% of the environmental data from operations over which it has operational control i.e. possessing complete authority to introduce and implement operating policies within the operations. This refers to the MTBs in ESR-REIT’s portfolio where there is landlord control of the common areas in the properties. The calculation excluded data from properties divested and included data from properties invested in the reporting year. In FY2024, this refers to a total of 38 properties — 32 in Singapore, four in Australia and two in Japan. MTBs in ESR-REIT’s portfolio: Business Park High-Specifications Industrial Logistics General Industrial 2 7 10 19 Electricity and Cooling Consumption Grid Electricity Consumption Electricity consumed by properties in ESR-REIT’s portfolio includes grid electricity, expressed in kWh. Landlord energy consumption refers to the energy consumed by common areas and shared services that ESR-REIT has operational control over. Data Source: National Utility Providers. Cooling Electricity Consumption (Singapore) Electricity used for cooling purposes by properties in ESRREIT’s portfolio includes on-site Chilled Water System (“CWS”) Consumption and off-site District Cooling System (“DSC”) Consumption, expressed in kWh. Landlord Cooling energy consumption refers to the energy consumed for common area cooling that ESR-REIT has operational control over. The on-site CWS Consumption has been included under the building’s grid electricity consumption if the power supply of it was tapped from building’s main switchboard; otherwise, it has not been included under and shall be accounted separately. The off-site DCS consumption is not accounted under the building’s grid electricity consumption, but is calculated separately and added to the Landlord Energy Consumption. Energy intensity (Singapore) Energy intensity per square metre is calculated by the energy consumed in the year, relative to the total common area of properties. For assets that are acquired or divested within the year, the partial energy consumption data would be extrapolated for a full year for annualisation purposes. Two intensity values were provided: one considers grid and renewable electricity consumption and the second considers only grid electricity consumption. Both intensity values are expressed in kWh/m2. Solar energy consumption For properties with on-site solar system installed, the solar energy generated was partially fed into the main switchboard of the building for direct consumption, and partially exported to the national grid. The breakdown of tenant and landlord solar consumption was not readily available due to site constraint of metering arrangement. Hence, the solar consumption breakdown was estimated based on the ratio between overall energy consumption of landlord and tenants.
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