How to phase a depot install without re-doing the civils
Phase the chargers, not the groundwork. Do the trenching and cabling for the end state once, then add charge points wave by wave.
Last updated 15 August 2026
Most depots electrify in stages — it spreads the cost and lets you learn before committing the whole fleet. The trick is to phase the chargers while doing the civils once.
Separate the slow part from the fast part
A depot install has a slow, disruptive part (civil works — trenching, ducting, foundations) and a faster part (mounting and connecting chargers). Phasing goes wrong when operators repeat the slow part each time they expand. The fix is to do the groundwork for the end state up front, then add chargers in waves as more vehicles switch.
A sensible phasing sequence
Lay the ducting and cable capacity for every future bay in the first dig. Install the chargers you need now. As each new batch of electric vehicles arrives, mount and connect additional charge points onto the infrastructure that’s already there — a quick electrical job with no fresh excavation. Your smart-charging system scales to cover the growing number of points.
Match phasing to the fleet and the grid
Phase by which duty cycles are ready to electrify first — usually the predictable, back-to-base vehicles — and keep an eye on your grid capacity as each wave adds load. If a later phase will push you past your connection, plan that conversation with the DNO early rather than discovering it mid-rollout.
Done this way, phasing gives you the cash-flow and learning benefits of going slowly without the penalty of repeated civils. The groundwork is a one-off; the chargers arrive when you’re ready for them.