"Magnets in the road, coil on the vehicle!"
Precision driver in the cab? [30cm] (or interesting but unmentioned alignment device somewhere; magnets tend to be good at alignment...).
Also: where did the "heavy plant" idea come from (other than the manufacturers)?
10kW, say the manufacturers. 10kW is maybe 15 horsepower (PS), being generous for round numbers.
For comparison, a modern small car engine is maybe 70PS, though it doesn't need all of it all the time. So if we had five of these 10kW things on one vehicle, we've got roughly as much input as a small car engine. But only when we're parked up at the charging station (which at that point needs 50kW wiring, piece of cake right?). So for now let's go back to one 10kW gadget per vehicle.
So you park up for five minutes, at 10kW transfer if you're lucky. Assuming you've got 100% storage efficiency round trip, you've got five minutes worth of 10kW output (or fifteen of 3kW, two minutes of 25kW, etc; all numbers approximate).
Heavy plant? Big diggers? I'm thinking maybe not.
On the other hand, in conjunction with something like the Parry People Mover there's perhaps some "synergy" (yuk) there, in the world of cost-effective zero-emission trams and light rail without needing a continuous energy input (eg without expensive overhead or 3rd-rail electrification).
You've never heard of Parry People Mover have you. Well that says something about the size of the addressable market for the Elix thing.
I wish them luck anyway. But careful with the hype.