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amluto • today at 2:17 PM • 3 replies • view on HN

AIUI, Tesla really screwed the pooch here. For the original Model S, Tesla really really wanted the US model to tuck the charge socket under the little hinged reflector, and they couldn’t figure out how to fit the Type 2 “Mennekes” connector their. So they invented their own socket (which evolved into NACS), and the Tesla one is rather inferior to Type 2, at least when used for AC charging.

And now every EV needs to have a different charge port configuration for North America vs Europe, and North America is stuck with NACS. (NACS is fine for DC but still sucks for AC. It cannot support 3-phase charging (which I admit has always seemed like a silly feature except in the limited case of 1 or 2 chargers in a single family residence), and cables and adapters cannot passively report their current rating. So you would need to build a kind of gnarly active MITM system to make a safe extension cable, whereas a Type 2 to Type 2 cable is built part of the Type 2 design.

Later, Tesla proved the whole thing pointless by successfully fitting Type 2 in the same location…


Replies

simondotau • today at 2:51 PM

I think the timeline is a bit off. When Tesla designed its connector, Type 2 wasn’t yet the established European standard. Tesla had shown its proprietary connector by 2011 and shipped it in 2012; Type 2 wasn’t selected as Europe’s common connector until 2013.

When Tesla later engineered the European Model S, it needed three-phase AC and adopted a modified Type 2 connector, which fitted behind essentially the same tail light door.

But that’s all history now.

Arguably both markets ended up with good solutions for their needs: NACS is exceptionally compact and well suited to North American single-phase AC plus DC fast charging, while Type 2 is larger but supports Europe’s widespread three-phase AC.

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numpad0 • today at 2:35 PM

European Model S has Type 2 in that location, only ones that don't fit is the Type 2 CCS with giant DCFC pins below the regular Type 2. NACS is just Tesla doing Apple.

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sugarkjube • today at 2:46 PM

> 3-phase charging (which I admit has always seemed like a silly feature

Well, 3phase is more efficient as you have less losses in the cabling.

May save you 5-10% on the bill.

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