> > So a single 300-kW port in a public charging station includes about $90,000 of power electronics, of which about $54,000 is for the isolation link. > I would love to see a concrete BOM for a sample build and mouser links to back this up.

This kind of checks out with the price of 200kW and 400kW chargers from Alpitronics: https://www.connect-gp-joule.de/en/shop/dc-charging-stations...

Between €67k and €102k (for some reasons VAT included in that price) for these units.