U.S. sales of conventional hybrids rose to 16% of new light-duty vehicles in the third quarter of 2026, while battery electric and plug-in models lost share, leaving the three categories at 23% combined.
The U.S. Energy Information Administration (EIA), using Omdia estimates, said conventional hybrids were the only one of the three categories to gain share year over year. Battery electric vehicles represented 6% of sales, compared with 10% a year earlier. Plug-in hybrids fell to 0.7% from 1.8%. Together, the three groups represented 23% of sales, down from 24% in the third quarter of 2025.
Kelley Blue Book separately estimated 262,649 electric vehicle sales in the quarter, 39.5% fewer than a year earlier but 6.1% more than in the second quarter. Its estimate put electric vehicles at about 6.4% of total sales.
The year-on-year comparison spans the Sept. 30, 2025, federal tax-credit cutoff. The Internal Revenue Service (IRS) says the New Clean Vehicle Credit and Qualified Commercial Clean Vehicle Credit are unavailable for vehicles acquired after Sept. 30, 2025. A qualifying vehicle acquired by that date may still qualify if delivered later. Conventional hybrids did not meet the programs’ eligibility rules, the EIA said. Battery electric vehicles reached a record 12% of new light-duty sales in September 2025, just before the credits expired at month-end.
The EIA data show a change over time but do not measure how much the credit cutoff contributed to it. Vehicle prices also rose: Kelley Blue Book reported average transaction prices of $50,089 in August 2026 and $50,562 in September. August was the first month that year with an average above $50,000. Erin Keating, executive analyst at Cox Automotive, said affordability pressures were leading more buyers toward lower-priced vehicles and segments.
The sales mix also affects electricity demand. The EIA said conventional hybrids use liquid fuels, while battery electric and plug-in hybrid vehicles can draw power from the grid. A shift toward conventional hybrids therefore has different implications for grid use than a shift toward plug-in models.
