2006 IPCC Guidelines for National Greenhouse Gas Inventories. Light-Duty Vehicle Greenhouse Gas Emission Standards and Corporate Average Fuel Economy Standards Final Rule, page 25,330 (PDF) (407 pp, 5.7MB, About PDF).
CalculationĨ,887 grams of CO 2/gallon of gasoline = 8.887 × 10 -3 metric tons CO 2/gallon of gasoline Sources This value assumes that all the carbon in the gasoline is converted to CO 2 (IPCC 2006). For reference, to obtain the number of grams of CO 2 emitted per gallon of gasoline combusted, the heat content of the fuel per gallon can be multiplied by the kg CO 2 per heat content of the fuel. In the preamble to the joint EPA/Department of Transportation rulemaking on that established the initial National Program fuel economy standards for model years 2012-2016, the agencies stated that they had agreed to use a common conversion factor of 8,887 grams of CO 2 emissions per gallon of gasoline consumed (Federal Register 2010). Environmental Protection Agency, Washington, DC. national weighted average CO 2 marginal emission rate, year 2019 data. Regional marginal emission rates are also available on the AVERT web page.This calculation does not include any greenhouse gases other than CO 2.national weighted average CO 2 marginal emission rate, year 2019 data) Therefore, AVERT provides a national marginal emission factor for the Equivalencies Calculator. EE and RE programs are not generally assumed to affect baseload power plants that run all the time, but rather marginal power plants that are brought online as necessary to meet demand. A marginal emission factor is the best representation to estimate which fossil-fired units EE/RE are displacing across the fossil fleet. Calculating the emission impacts of EE and RE on the electricity grid requires estimating the amount of fossil-fired generation and emissions being displaced by EE and RE. Most users of the Equivalencies Calculator who seek equivalencies for electricity-related emissions want to know equivalencies for emissions reductions from energy efficiency (EE) or renewable energy (RE) programs. national weighted average CO 2 marginal emission rate to convert reductions of kilowatt-hours into avoided units of carbon dioxide emissions. The Greenhouse Gas Equivalencies Calculator uses the AVoided Emissions and geneRation Tool (AVERT) U.S. These are calculated using GWPs from the Intergovernmental Panel on Climate Change’s Fourth Assessment Report. Go to the equivalencies calculator page for more information.Ī note on global warming potentials (GWPs): Some of the equivalencies in the calculator are reported as CO 2 equivalents (CO 2E). This page describes the calculations used to convert greenhouse gas emission numbers into different types of equivalent units.
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