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City of Pleasanton <br />GHG Inventory, Forecast, and Targets Methodology and Calculations <br /> <br />14 <br />Table 6 Inventory and Forecast Data Sources <br />Sector Activity Data Unit Source <br />Inventory <br />Energy Electricity Consumption <br />Natural Gas Consumption <br />kWh <br />Therms <br />Pacific Gas and Electric <br />Transportation Annual Mileage VMT Metropolitan Transportation Commission <br />Vehicle Miles Traveled Data Portal; EMFAC2017 <br />Model; OFFROAD2007 <br />Water Water Pumping <br />Electricity Usage <br />AF <br />kWh <br />Zone 7 Water; City of Pleasanton; Dublin-San <br />Ramon Services District; Livermore Municipal <br />Water <br />Wastewater Electricity Consumption <br />Water Treated <br />kWh <br />MGD <br />Community Protocol Estimates, <br />Dublin-San Ramon Services District <br />Solid Waste N/A N/A CalRecycle; California Air Resources Board <br />Landfill Emissions Tool Version 1.3 <br />Forecast Growth Indicators <br />Population Residents Persons California Department of Finance E4 and E5 <br />demographic datasets; Association of Bay Area <br />Governments Plan Bay Area Projections 2040 <br />Commerce Jobs Number <br />of Jobs <br />California Department of Finance E4 and E5 <br />demographic datasets; Association of Bay Area <br />Governments Plan Bay Area Projections 2040 <br />Transportation Annual Mileage, Emissions N/A EMFAC2017 Model; Metropolitan <br />Transportation Commission Vehicle Miles <br />Traveled Data Portal <br />Building Efficiency Title 24 Efficiency Increases Percent California Energy Commission <br />Electricity Emissions Renewable Portfolio Standard Percent Renewable Portfolio Standard; Senate Bill 100 <br />kWh; kilowatt hours; VMT: vehicle miles traveled; AF: acre-foot; MGD: million gallons per day; N/A: not applicable; <br />3.1 Energy Emissions <br />The energy sector includes GHG emissions resulting from the consumption of electricity and natural <br />gas. Both energy sources are used in residential and nonresidential (commercial and industrial) <br />buildings and for other power needs throughout the City of Pleasanton. The following subsections <br />describe the data sources, emission factors and calculation methodologies associated with electricity <br />and natural gas. <br />Overall, residential energy emissions were about equal to non-residential (commercial and industrial) <br />in their contribution to energy emissions in 2017, at approximately 45 percent and 49 percent <br />respectively (Figure 3). Direct access electricity accounted for the remaining 6 percent. It should be <br />noted that, due to data availability issues in reporting years after 2013, large industrial gas data was <br />not provided by PG&E and was instead estimated for 2015 and 2017 to allow for more accurate <br />comparisons between inventory. Additional information on why this change was made as well as the <br />methodologies used to estimate 2017 commercial gas data are provided in Section 2.3.