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Joined 2 years ago
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Cake day: June 9th, 2023

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  • Consider a normal detached home installation has a maximum capacity to deliver 10-30 kW of power. Each DC charging station can deliver 250-400 kW. That’s 10 to 40 homes per charger. And when it’s on, it’s really pulling that and then some. Not only the conversion to DC not that efficient, the inefficiencies come out as heat, which must be extracted through active cooling systems (more power required). So you’re talking medium voltage transformers, switchgear, DC converters… These things aren’t cheap. And labor for medium voltage isn’t ubiquitous or cheap either.

    That said, I thought 271k per charger a bit much too. Usually at each charge point you’ll have 4-10 chargers, and the shared infrastructure brings the cost per unit down.