Tesla and Sainsbury’s Smart Charge named UK’s best EV charging networks in Zapmap 2025 rankings

Tesla and Sainsbury’s Smart Charge have topped the rankings in Zapmap’s annual UK EV driver satisfaction survey, which reveals the country’s best rapid and ultra-rapid public charging networks.

Now in its eighth year, Zapmap’s independent survey gathered 3,976 responses from battery electric vehicle (BEV) drivers during September and October 2025.

The results show Tesla’s Public Supercharger network retaining its position as ‘Best Large Network’, while Smart Charge, the Sainsbury’s supermarket chain’s charging arm, was named ‘Best Medium Network’.

Tesla’s national network, which now has 1,115 devices across 97 locations, impressed drivers with its reliability and competitive pricing.

Around 54% of its Supercharger network is now open to all EV drivers, up from 40% a year ago, with further expansion planned through partnerships such as its collaboration with EV on the Move.

Among large networks, MFG EV Power ranked second, followed by Ionity and Osprey in joint third.

All five major networks achieving a 3.5-star or higher overall rating, including GRIDSERVE and Instavolt, received Zapmap’s ‘EV driver recommended’ accreditation.

In the medium category, Sainsbury’s Smart Charge claimed the top spot with 335 rapid and ultra-rapid devices across 84 locations, praised for ease of use, reliability, and integration with the Nectar card rewards scheme.