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Comment by ctrlmeta | Hacker News Reader

But how many work areas have a charging station available easily?

Literally the point of the study

> “We encourage policymakers to consider utility rates that encourage day charging and incentivize investment in charging infrastructure to shift drivers from home to work for charging,” said the study’s co-senior author, Ram Rajagopal

The term "charging station" is hinting at a too big infrastructure. All you need is a power outlet per car. If the car parks for 8 to 9 hours, you don't need a huge amount of power to recharge it.

You need more than just a power outlet per car, with regular 120vac, you pretty much need a breaker and circuit per car, because you shouldn't put two of those on a single circuit, since they'll usually pull up to the 15A rating of the plug, and code restricts you from using more than 20A breaker on a circuit with 15A plugs, so you'll pop the breaker if you've got two 15A loads and they don't communicate to share. It probably makes more sense to get a two or maybe four car charging station per breaker and circuit, and set it for the appropriate amps on the circuit, it can share that appropriately amongst the cars plugged in.

I works out to about 12.5 amps for a normal 15 amp plug. You can't draw the full rated current continuously.

With an MWBC circuit you can however supply two different 15 amp plugs with a single cable 14/3 cable fed off a 15 amp duplex breaker. So it slightly reduces the amount of copper you need to run.

Not as many as should. The state can probably incentivize creating some more, and job seekers can prioritize it as well. Not to mention workers just asking their employers to do it.

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