March 2026 saw the first documented megawatt charging session for a heavy truck in North America: Kempower’s Mega Satellite MCS dispenser, a Windrose electric tractor, at EV Realty’s San Bernardino site in California — with Kempower set to deliver over 1.2 MW of capacity to the site.

The transatlantic comparison is now explicit: Europe’s megawatt build is alliance-led and public (Milence hubs, AFIF funding, German motorway programmes), while America’s is venture-led and depot-anchored (EV Realty, WattEV’s 11.5 MW San Bernardino site with thirty 250 kW CCS and six 1.2 MW ports, Tesla’s 66-site Megacharger map with Pilot). Both answer the same 45-minute-break arithmetic; they differ in who pays and who can plug in.

For European observers, the US build is the benchmark for speed: private capital with anchor fleets can move faster than public procurement, and Tesla’s truck-stop partnership (37 locations in 2026) will test whether single-brand networks outrun brand-agnostic alliances. The fleets that win on both continents are the ones that treat the 2026–28 site maps as procurement inputs, not press releases.