Battery-electric cranes, yard tractors, reach stackers, and drayage trucks all pull the same trick on a port's grid: long idle stretches, then a spiky multi-megawatt charging burst. A non-flammable VSB buffer sits between the grid feed and that burst, so the port doesn't have to buy a transformer upgrade and a multi-year interconnection queue just to electrify one fleet.
The EPA's Clean Ports Program is funding 53 projects — cargo-handling equipment, drayage trucks, shore power, and rail — with nearly $3 billion in grants at ports across 26 states and territories. Every one of those projects lands battery-electric equipment on a port grid that was sized for diesel, not for simultaneous fast-charging. The charging infrastructure is the easy part to fund; the substation capacity to feed it is the part that takes years.
Source: EPA Clean Ports Program Awards
A yard-sited VSB buffer absorbs the charging burst from cranes, tractors, and drayage chargers and discharges it on demand, so the port's grid connection only has to carry the average load. No fire suppression and no active cooling means it can sit in already-congested port real estate without eating into laydown space the way a lithium installation's clearance requirements would. Bus-bar integration keeps the cabling clean for cluster-scale deployments, and the same fast-recharge behavior that works for tug and ferry duty cycles applies here: a 20 ft container (~400 kWh) is the natural sizing block, clustered up for higher-demand terminals.
This line is researched but not yet in an active pursuit. Sizing above is a starting block, not a quote — tell us your fleet and charger count and we'll size it properly.