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10 <br />discharging effluent. Another 33% come from the plant’s electricity load <br />necessary for it to run 24/7. <br />Emissions from the WPCP, including its energy use, are about 16% lower than <br />they were in 2010. Accurate numbers for comparison are not available from the <br />original 2005 baseline inventory. <br /> <br />Buildings and Facilities <br />Facility operations contribute greenhouse gas emissions through consumption <br />of electricity and natural gas. Emissions data for San Leandro’s buildings and <br />facilities was gathered from PG&E. Buildings and facilities represent 1,218 MT <br />CO2e, 20% of the City’s total. Emissions from natural gas are down 53% from the <br />2005 baseline and 60% from 2010 due largely to HVAC retrofits at the Police <br />Station and City Hall. Emissions from electricity have increased by 63% from the <br />2005 baseline and 30% from 2010, but the energy mix from PG&E now includes <br />more renewables. This results in an overall 10% decrease in emissions for <br />buildings and facilities since 2005 and a 25% decrease since 2010. <br /> <br />Streetlights, Traffic Signals, and Other Public Lighting <br />San Leandro operates public traffic signals, streetlights, median lights, park <br />lights, etc. which created 682 MT CO2e emissions through the consumption of <br />electricity. PG&E supplied the data for municipal electricity consumption. The <br />majority of energy use in this sector, 84%, is attributable to streetlights while <br />traffic signals use about 12%. The remainder goes to irrigation of medians, and <br />other sources. In total, streetlights and traffic signals are a smaller sector, <br />making up about 11% of total City emissions. <br /> <br />Vehicle Fleet and Mobile Equipment <br />The vehicles and equipment used by San Leandro range from light-duty trucks, <br />stationary equipment, heavy street sweepers, and sedans. They burn gasoline <br />and diesel fuels that release greenhouse gas directly into the air. In 2015, San <br />Leandro had 205 vehicles and emissions were estimated using the total gallons <br />of diesel and gasoline used from the refueling pumps at Public Works <br />Corporation Yard. Fleet emissions represent 24% of the overall inventory with <br />1,483 MT CO2e released. Emissions have increased by 20% since 2005 and 25% <br />since 2010. <br /> <br />843 986 <br />394 <br />506 <br />632 <br />824 <br />0 <br />200 <br />400 <br />600 <br />800 <br />1000 <br />1200 <br />1400 <br />1600 <br />1800 <br />2005 2010 2015Metric Tons CO2eBuilding Energy Usage, <br />2005-2015 <br />Natural Gas Electricity <br />0 <br />200 <br />400 <br />600 <br />800 <br />1000 <br />1200 <br />1400 <br />1600 <br />2005 2010 2015MTCO2eVehicle Fleet Emissions, <br />2005-2015 <br />Gas Diesel <br />36