I worry about these projects being out-of-date soon after they are completed.
Currently most EV cars are in the 350V to 450V range & make use of the 400V DC chargers, those being the 50kW rapids & the 150kW ultra rapids.
But, the Porsche Taycan & the soon to arrive Hyundai Ioniq 5 use a doubled-up system of around 800V & benefit from much faster charging only when using an 800V ultra rapid charger (Ionity chargers & a select few others).
Within only a few years it’s likely that all new EVs will be using the 800V standard & that all these expensive facilities will need upgrading.
Another thought is that 7kW AC posts might make more sense in a park & ride car park, you park up & plug in & off you go into town for the morning, & when you come back to your car after 4 hours it’ll probably be pretty near fully charged. Three phase 22kW AC posts make even more sense.