4 ms·
It will first damage the batteries very fast, second, most users don't want to mess with that, they want to plug and play. So, on both counts your fears are mis
by braiamp 5mo ago
It will first damage the batteries very fast, second, most users don't want to mess with that, they want to plug and play. So, on both counts your fears are misplaced.
- spacebanana7 5mo agoIn the event of an internet outage, wall box chargers are legally required to default on. In practice most chargers interpret this as taking the full 7kw - whether this is a bug or misreading of the intent of the law doesn't really matter from the perspective of the grid. Large ISP outages that affect millions of people are not uncommon on a decade by decade basis, and I suspect an uncomfortable number of UK EV chargers are in some way linked to eu-west-2. [1] https://www.legislation.gov.uk/uksi/2021/1467/regulation/7/made https://www.legislation.gov.uk/uksi/2021/1467/regulation/7/m...
- alt227 5mo agoIt sounds like a genuine attack vector to me. If someone hacked say teslas firmware supply chain and made all chargers pull max power at the same time, it could be a national infrastructure crippling attack.
- throwway120385 5mo agoWhere would they dump the power? You need a load of some sort. 7kW requires a voltage drop between a hot and a neutral. If it's a 1V drop then you're going to get a hot load of amps.
- alt227 5mo agoInto what it was designed for, maybe.... a car?! Im thinking in an attack situation hackers might plan for say a 3am mass dump and pull on the grid by all cars that are charging overnight. This would definitely be possible by altering firmware, and would be bad enough to blow some local substations for sure.
- spacebanana7 5mo agoI may be misunderstanding your concern but the idea would be for Tesla to dump the energy into car batteries or powerwall storage.