Public EV Charging Satisfaction Climbs as IONNA Takes Top Spot
According to JD Power's 2026 U.S. Electric Vehicle Experience Public Charging Study, DC fast charging satisfaction climbed 12 points year over year to 666 on a 1,000-point scale. Every one of the 10 measured factors moved upward.
Darren Prentiss·updated August 15, 2026
DC Fast Charging Satisfaction Hits 666 as OEM-Backed Networks Reset the Baseline
The headline metric: fewer wasted stops. The non-charge visit rate, sessions where a driver arrives and cannot plug in, fell to 12%, down from 14% in the prior year. Lowest reading in the study's history.
The data reflects a shift in how the networks are built, not just where they are.
Where the Gains Landed
Charger availability posted the largest single jump at +27 points. Safety at charging sites and charging cost each gained 18. Newer hardware, higher peak charge rates, larger sites, simpler payment flows — the upgrades track directly to the scoring drivers.
The OEM-backed cohort accounted for the top three DC fast charging networks. IONNA scored 807, the leader of the field. Mercedes-Benz Charging Network at 797. Rivian Adventure Network at 755. Earlier networks, even when functional, are ceding ground to purpose-built infrastructure designed around vehicle integration, not retrofitted parking bays.
Location context matters as much as the network name. Hotel-located DC fast chargers scored 692. Gas station and convenience store sites: 689. Restaurants: 688. Dealerships: 570. The gap is not subtle. Site selection and amenities now swing 120+ points on the satisfaction index.
Level 2 Moves the Other Way
Public Level 2 satisfaction dropped 12 points to 595. The drag concentrated in ease of payment and ease of charging. Slower hardware, older user interfaces, fragmented payment stacks — the same friction that DC fast networks are solving, still embedded in the L2 layer.
For buyers, the split is clear: DC fast charging is converging on a usable standard. L2 public is regressing on user experience even as the hardware installs itself in more curbside and retail locations.
What to Watch
The study ran January through June 2026, covering 6,594 BEV and PHEV owners, conducted with PlugShare. The reliability curve is bending. The next quarter's data will tell whether the OEM-backed rollout is pulling the industry average upward, or whether the legacy operators close the gap.
For the moment: IONNA sets the reference architecture. Everyone else is now measured against it.