U.S. Department of Energy

Note: Quarter has been considered as following: 2020-01-01 as Q1 2020 2020-04-01 as Q2 2020 2020-07-01 as Q3 2020 Electricity prices are reduced by a factor of 3.6 because electric motors are 3.6 times more efficient than internal combustion engines and converted to GGEs at a rate of 33.7 kWh per GGE. Propane prices reflect the weighted average of "primary" and "secondary" stations. Primary stations have dedicated vehicle services and tend to be less expensive. Secondary stations are priced for the tanks and bottles market, and tend to be more expensive.