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Probably because Tesla isn't into retail point of sale and would rather reuse existing app based infrastructure.

• natch 5y ago
  Also important to note Tesla drivers don’t need to use the app for charging. Although it does have helpful features if they do, like being able to check on the charge remotely. The described experience of selecting a charger, pressing start charging / stop charging etc. is only for non-Teslas because they don’t have the integration.
  • vel0city 5y ago
    > is only for non-Teslas because they don’t have the integration. Several non-Tesla models support a standardized protocol to negotiate billing information in the charging handshake. Its a matter of once again Tesla using a proprietary system instead of adopting industry standards.
    • seanmcdirmid 5y ago
      > Its a matter of once again Tesla using a proprietary system instead of adopting industry standards. Ah, you mean there is already an industry standard around this? That's great, but could you tell us what it is (surely the standard that Tesla isn't following has a name or something)?
      • vel0city 5y ago
        The standard is the easy to remember ISO 15118. Not all EVs support it yet, and for sure many charging stations don't implement it, but there is an international signaling standard to communicate this data which theoretically everyone can implement and participate in. https://en.wikipedia.org/wiki/ISO_15118 https://en.wikipedia.org/wiki/ISO_15118
        • seanmcdirmid 5y ago
          Thanks. It looks like 4 or 5 vehicles support it starting in 2021. Hopefully Tesla will join them someday.