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4.5 – Greenhouse Gas Emissions <br />Draft Environmental Impact Report February 2021 <br />14800 W. Schulte Road Logistics Center 4.5-25 <br />Construction <br />CalEEMod Version 2016.3.2 was used to estimate potential Project-generated GHG emissions during construction. <br />Construction of the Project would result in GHG emissions primarily associated with use of off-road construction <br />equipment, on-road hauling and vendor (material delivery) trucks, and worker vehicles. All details for construction <br />criteria air pollutants discussed in Section 4.1.3 in Section 4.1, Air Quality, are also applicable for the estimation of <br />construction-related GHG emissions. As such, see Section 4.1.3 for a discussion of construction emissions <br />calculation methodology and assumptions. <br />Operation <br />Emissions from the operational phase of the Project were estimated using CalEEMod Version 2016.3.2. Operational <br />year 2022 was assumed consistent with completion of Project construction. Although emission reductions are not <br />quantified, the Project would incorporate the PDFs summarized above. <br />CalEEMod Version 2016.3.2 was used to estimate potential Project-generated operational GHG emissions from <br />area sources (landscape maintenance), energy sources (natural gas and electricity), solid waste, water supply and <br />wastewater treatment, off-road equipment, and stationary sources (fire pump). Mobile source emissions were <br />estimated using a spreadsheet model based on CARB EMFAC2017 emission factors. Emissions from each category <br />are discussed in the following text with respect to the Project. For additional details, see Section 4.1.3 for a <br />discussion of operational emission calculation methodology and assumptions, specifically for area, energy (natural <br />gas), and mobile sources. <br />Area Sources <br />CalEEMod was used to estimate GHG emissions from the Project’s area sources, which include operation of <br />gasoline-powered landscape maintenance equipment, which produce minimal GHG emissions. See Section 4.1.3 <br />for a discussion of landscaping equipment emissions calculations. <br />Energy Sources <br />The estimation of operational energy emissions was based on CalEEMod land use defaults and total area (i.e., <br />square footage) of the Project ’s land use. The current version of CalEEMod assumes compliance with the 2016 <br />Title 24 Building Energy Efficiency Sta ndards (CAPCOA 2017); however, the Project would be required to comply <br />with the 2019 Title 24 Standards , at a minimum. Per CEC’s Impact Analysis for the 2019 Update to the <br />California Energy Efficiency Standards for Residential and Non -Residential Buildings , the first-year savings for <br />newly constructed nonresidential buildings are 197 gigawatt hours of electricity, 76.6 megawatt of demand, <br />and 0.27 million therms of gas, representing reductions from the 2016 Title 24 standard of 10.7%, 9%, and <br />1%, respective ly (CEC 2018). <br />CalEEMod default energy intensity factors (CO2, CH4, and N2O mass emissions per kilowatt-hour) for Pacific Gas & <br />Electric (PG&E) is based on the value for PG&E’s energy mix in 2008. SB X1 2 established a target of 33% from <br />renewable energy sources for all electricity providers in California by 2020, and SB 100 calls for further <br />development of renewable energy, with a target of 60% by 2030. The CO2 emissions intensity factor for utility energy <br />use in 2022 (first full year of Project operations) in CalEEMod was adjusted to reflect PG&E’s 2018 reported factor, <br />which assumes 29.7% of the power mix consists of eligible renewables (PG&E 2020).