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Can't help but feel like this is the wrong direction. Electric cars have larger batteries, are only used ~2% of the day on average—most of the time just parked
by ttfkam 3y ago
Can't help but feel like this is the wrong direction. Electric cars have larger batteries, are only used ~2% of the day on average—most of the time just parked somewhere—and are just a CCS-2 plug away from being a superior alternative to a Powerwall.
If you're away from home, electricity use should be lower anyway. If you are at home, a car is too, and it should be able to easily handle household appliances—a much easier load than accelerating multiple tons to 65mph. A typical electric vehicle today could power a home for DAYS if not more than a week.
A Powerwall on the other hand… just sits there and can only give a day or two if you're lucky? It handles the one use case and that's it. I think we can do better.
- pram 3y agoThe point is it charges during the day with your solar panels and then discharges at night. What you’re saying might be true if your car sits in your garage plugged in 24/7?
- ttfkam 3y agoI guess you're single with only one car. Many of us have cars that remain at home much of the day. Even more so since I started taking public transit and bicycle to work.
- rcMgD2BwE72F 3y ago>Many of us have cars that remain at home much of the day. Even more so since I started taking public transit and bicycle to work. What's the point of the second car? I'm genuinely curious as I don't have a car (I live in a big European city). Can't you carpool or get a cab when the need arise for a second vehicle?
- toomuchtodo 3y agoYou’ll get paid when the battery discharges on demand as part of a virtual power plant. Cars as vehicle to grid is Rube Goldberg and unnecessary complexity for users who do not want complexity. That’s not to say you can’t orchestrate aggregate vehicle charging when there is an abundance of cheap clean power available. That’s a fine grid balancing use for EVs. TLDR Cars for car things, stationary storage for storage things.
- ttfkam 3y agoUnnecessary complexity? Rube Goldberg? Folks would plug their car in to the charger when they get home just like EV owners do now. The CCS-2 connector is a bidirectional power connector.
- toomuchtodo 3y agoFord just decided to standardize on the Tesla charging connector so it doesn’t appear this is a mass market solution. CCS2 will die a slow death in the US. https://media.ford.com/content/fordmedia/fna/us/en/news/2023/05/25/ford-ev-customers-to-gain-access-to-12-000-tesla-superchargers--.html https://media.ford.com/content/fordmedia/fna/us/en/news/2023... https://twitter.com/SawyerMerritt/status/1661849877154869248 https://twitter.com/SawyerMerritt/status/1661849877154869248
- ttfkam 3y agoOr they'll use adapters at the Tesla charging stations? Just like they do now?
- rcMgD2BwE72F 3y agoFord will only have NACS plugs on all their EVs starting in 2025.
- rainbowzootsuit 3y agoPerhaps of parallel interest I saw this GitHub repo which is a translator from CANbus to modbus to enable the use of used/salvaged Leaf EV batteries with stationary inverters from Fronius. https://github.com/dalathegreat/BYD-Battery-Emulator-For-Gen24 https://github.com/dalathegreat/BYD-Battery-Emulator-For-Gen... The author has an introductory video about it. https://www.youtube.com/watch?v=XHZWGLzT7gg https://www.youtube.com/watch?v=XHZWGLzT7gg