It isn't the machine. It's the power.
Electric excavators are ready. Site power isn't. Here is how contractors, hire fleets and dealers are charging electric plant with no grid connection, and what nine months with the Bouygues Murphy JV on the Lower Thames Crossing has shown.
Electric plant has arrived faster than the power to run it. A 20-tonne electric excavator needs a large charge every shift. A temporary grid connection is often slow, expensive or simply not available, and diesel generators defeat the point. That gap is where electric projects stall.
Allye’s MAX closes it. MAX is mobile battery storage with DC fast charging built in, from 300kWh to 1.5MWh. One unit charges excavators, dumpers, telehandlers, trucks and vans on site, and runs cabins and tools from the same stored energy. It is towed, lifted into place or dropped from a hooklift truck in under two minutes, and it is exempt from ADR in the UK, so it moves as the job moves.
Proven on the Lower Thames Crossing
Since January 2026, the Bouygues Murphy JV has used four Allye MAX500s to charge Volvo, SANY and LiuGong electric excavators on its tunnels site, at up to 240kW DC, with no grid connection. To the end of September 2026: 897 charging sessions, 126MWh delivered, and over £30,000 a week saved against generators.
For contractors
Your diesel-free targets depend on charging you cannot always get. On a linear scheme, an early-stage site or a street works job, the permanent supply is months away and a temporary connection may never come.
MAX brings the power to the machine. At Collins Earthworks, a MAX1000 on an existing 125A supply charges electric trucks where a grid upgrade would have cost over £1m, saving £2,500 a week. And because each MAX is built in London using Tesla Model 3 and Model Y batteries from vehicles once on UK roads, with 60% lower embedded carbon than new cells, it drops straight into carbon and social value reporting.
For plant hire
Your customers no longer ask whether an electric machine can do the job. They ask how they will charge it. When the answer is “we can’t”, the order goes back to diesel.
With MAX, you hire out the machine and the power to run it in one order. MAX travels like any other piece of plant, charges any make of machine, and between hires it can earn from grid services in the yard. Horizon Plant in Ireland and FTVS at Aggreko already run MAX, and Dawson Group has trialled it. The entry MAX300 tows on a standard trailer at under 3.5 tonnes and delivers up to 400kW DC.
For dealers and manufacturers
Electric cars took off when buyers knew they could charge them. Electric plant is at the same point: the dealer who brings the charging answer with the machine sells the machine.
MAX gives you an answer for every deal, from one compact on a London street to a fleet of 23-tonne excavators and electric tippers, with DC charging up to 1.28MW. It already charges Volvo, SANY and LiuGong machines on the Crossing. We work with dealers on referral and co-sell arrangements, building a joint offer so the charging answer arrives with the machine.
Electric plant doesn't need the grid. It needs the power where the machine is.