Article
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Preserved in Portico This version is not peer-reviewed
USA Carbon Footprints of Grills, by Fuel & Grill Type, 2022-27
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Version 1
: Received: 25 May 2022 / Approved: 26 May 2022 / Online: 26 May 2022 (10:27:15 CEST)
A peer-reviewed article of this Preprint also exists.
Johnson, E.; Gafford, A. USA Carbon Footprints of Grills, by Fuel & Grill Type, 2022–27. Fuels 2022, 3, 475-485. Johnson, E.; Gafford, A. USA Carbon Footprints of Grills, by Fuel & Grill Type, 2022–27. Fuels 2022, 3, 475-485.
Abstract
Grill-specific footprints for common fuels/grill types in the USA are estimated from public information and data from a major grill manufacturer. These are a function of both 1) a fuel’s footprint and 2) a grill’s efficiency of cooking. In 2022, grill-specific footprints vary by 9:1. A typical gas grill is highest at 3.6 lb CO2e/grill session, nine times that of a wood-pellet grill, lowest at 0.4 lb. Charcoal briquettes, electricity and super-efficient gas grills come in-between. Pellets are lowest, because they are made from waste wood and their production burden is modest. Electricity has the highest fuel footprint, yet the second-lowest grill-specific footprint, thanks to its high efficiency. Briquettes come in fourth, because their production involves fossil gas, and they contain some fossil coal. Grill efficiency is key for gas (natural gas or propane): a typical gas grill has twice the footprint of a super-efficient one. In 2027, with bio substitution, the super-efficient gas grill would move ahead of pellets. Electricity and charcoal could improve but would still place fifth and sixth. The range of grill-specific footprints could fall to 4.5:1, within a much-lower range, the highest footprint in 2027 almost 60% lower than 2022’s highest.
Keywords
grills; carbon footprints; carbon intensities; full fuel cycle
Subject
Engineering, Energy and Fuel Technology
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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