Gallon of Gas Equivalence

A gallon of gas equivalent (GGE) is a standardized measure that expresses the cost of different energy sources in terms of the energy contained in one gallon of gasoline. Most consumers know what a gallon of gas costs, so GGE offers an intuitive reference point for comparing fuels that are sold in unlike units — therms of natural gas, gallons of propane, kilowatt-hours of electricity.

Each brief in this series converts a state’s current natural gas, propane, and electricity prices onto that common basis, so fuels can be compared on an equal-energy footing. As policymakers weigh electrification strategies and natural gas restrictions, GGE comparisons show what it actually costs a household to get the same amount of energy from different sources.


Natural Gas Wallet Share

Natural gas heats homes — it’s the fuel behind a hot shower in the morning and a warm kitchen in winter. But how much of the family budget does it actually claim? Each Wallet Share brief measures the share of a household’s monthly income that goes to the gas bill, month by month, using EIA data on household usage and prices and income figures from the Bureau of Economic Analysis.

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