ESRT Portfolio 2023 Energy & CO2e Emissions Summary

High Level CO2e Emission Percent Savings Breakdown

In 2023, ESB generated 13,732 tCO2e emissions per year compared to 15,779 tCO2e emissions in 2019. Overall, CO2e emissions were reduced by 13.0% compared to 2019 baseline due to the following: • Weather adjustments accounted for a 4.7% reduction in CO2e emissions . • Building emissions were negatively impacted by 11.4% through the worsening CLCPA projected electrical grid coefficients. • The building achieved a 19.6% reduction in CO2e emissions through implementation of energy efficiency and changing building operations.

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