Allye Energy's MEV slowly charges its own battery from a depot's existing supply, then sends that energy to vehicles at high power. electrive reports that the battery is made of complete packs taken from retired electric vehicles.

The specs

  • Two versions: MEV200, with 155 kWh of storage, and MEV300, with 232 kWh, according to electrive.
  • Allye's product page lists 200 or 300 kW through two CCS2 connectors, for one vehicle or shared between two. electrive reports a maximum of up to 400 kW. Allye's page says 300 kW.
  • It runs from an existing 16A–125A three-phase supply. Allye says a MEV200 can become a MEV300 by adding a third pack on site.
  • Pricing starts at £70,000 before VAT, including survey, delivery, installation and commissioning. Deliveries are expected from Q2 2027.

The pitch

Allye says a new UK depot grid connection takes 18 to 36 months. It claims a MEV200 can save £50,000 to £110,000 over ten years compared with a conventional 200 kW charger. Allye's page says that on a 63A supply, one unit can serve 7 to 10 vehicles a day at 55–70 kWh each. electrive's caveat is that the buffer raises charging speed but not daily energy: the depot's supply still limits how many vehicles can be served.

Why it matters

Grid connections are the bottleneck for fleet charging, from Tesla Semi depots to Waymo's robotaxi hubs, which are already crowding public chargers in San Diego. Battery buffers are one way around the wait.