Nevada Statewide Greenhouse Gas Emissions Inventory and Projections, 1990 to 2030 slide image

Nevada Statewide Greenhouse Gas Emissions Inventory and Projections, 1990 to 2030

Nevada Statewide Greenhouse Gas Emissions Inventory and Projections, 1990 to 2030 5. Residential, Commercial, and Industrial 5.1 Overview This section summarizes the GHG emissions associated with the burning of fuels in the residential, commercial, and industrial sectors. Industrial Process emissions, that is, emissions associated with the transformation of raw materials from one state to another that results in the release of GHGs into the atmosphere, is discussed in Section 6. The GHG emissions accounted for in this sector are CO2, CH4, and N₂O. Emissions are generally calculated by applying specific emission factors (expressed in mass of carbon per unit of energy content, e.g. lbs GHG/BTU) and combustion efficiency (expressed in percentages) to the different types of fuels consumed in each sector. Table 5-1 lists the types of fuel consumed by each sub-sector. 23, 24 Table 5-1: Fuel Types Consumed by Sub-Sector Fuel Type Residential Commercial Industrial Coal Coal Coal Other coal Natural Gas Natural gas Natural gas Natural gas Distillate fuel Distillate fuel Distillate fuel Kerosene Kerosene Kerosene Liquefied Petroleum Petroleum Gas (LPG) LPG Motor gasoline Residual fuel LPG Motor gasoline Residual fuel Lubricants Asphalt/Road oil Crude oil Feedstocks Still gas Special naphthas Unfinished oils Waxes Aviation gasoline blending components Motor gasoline blending components The SIT also takes into account that some industrial processes (e.g., road asphalting or synthetic rubber production) consume fossil fuels (e.g., oil or LPG) in a manner that permanently stores that fuel into the final product with no emissions into the atmosphere. The SIT provides emission factors, energy content, combustion efficiencies, and the fractions of permanently stored fuels. Fuel consumption data was provided by the EIA-SEDS.25 23 ICF (2016) User's Guide for Estimating Direct Carbon Dioxide Emissions from Fossil Fuel Combustion Using the State Inventory Tool, ICF International, Prepared for U.S. Environmental Protection Agency. February 2016, p 1.6. 24 Some fuels that are considered by the SIT are not included in this table as there was zero consumption in Nevada over the 1990 to 2013 period. 25 It is important to note that the way the EIA-SEDS disaggregates fossil-fuel can result in under/overestimates of emissions versus the other states in the original "group". This is due to the methods of redistribution which are largely comparisons of populations and in some cases gross domestic products (GDPs). 20
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