UK charger network reliability: September 2026

Each network publishes a live status for every connector: available, charging, out of service, or unknown. trevl reads those feeds around the clock and records what each connector said, hour by hour. Out of service is the share of time a connector was reported faulted, out of order, blocked or otherwise unusable. Usable is the share it was free or in use. In use is the share someone was charging. Readings of unknown are left out of all three and counted separately as status known.

Each site’s day is worked out from its own readings first, then weighted by its number of connectors. A feed that reports every minute therefore counts no more than one that reports every few hours, and a 12-bay hub counts more than a single post.

Site-days with a fault is the share of days on which any connector at a site was out of service, however briefly: a measure of how often a driver might meet a broken bay, where time out of service measures how long they stay broken.

These are the operators’ own reports. A charger that is broken but still reported as available counts as available here, and one taken out of service for planned work counts as out of service. A network whose feed is quicker to flag faults can look worse than one that is slower to, for the same chargers. The figures measure what each network tells drivers, which is also what trevl plans on.

Networks differ in what they run. A network of on-street lamp-post chargers and one of motorway rapid hubs are not doing the same job, and their figures are best read against their own past months as much as against each other.

Suspected silent faults are experimental: a connector that sits free for hours while the bays beside it are in constant use is probably not working, whatever the feed says. trevl has not yet checked how often that guess is right, so it is shown for information and plays no part in the order of the charts.

Only networks with a live status feed are measured; sites known only from Open Charge Map have no live status and are not counted. A network is compared only when its readings cover at least 20 days of the month, come from at least 10 sites, and carry a known status at least 80% of the time. Otherwise it is listed with the reason, not ranked.

• The status history starts on 4 September 2026.
• Outages are counted from 4 October 2026, when trevl began recording each status change.
• Suspected silent faults are counted from 8 October 2026.
• Price changes are counted from 5 October 2026; each site’s first recorded price is its starting point, not a change.
• A measure that started part-way through a month is shown only if it covered at least two-thirds of it, and counts are scaled to 30 days.
• Until 12 September 2026 the Eco-Movement status service reported every Ionity and BP Pulse connector as charging, unchanged for days, so those days are left out.
• Until 7 October 2026 GRIDSERVE's out-of-order status was misread, so its broken chargers counted as available. Its figures start on 9 October, after the correction had settled.

A month is published two days after it ends and rebuilt every day while late readings can still arrive and be corrected. Its figures are final from 5 November 2026, and are not changed after that except to correct an error, which this page would say.