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Comment by ou8_1_2 | Hacker News Reader

All the other 15 amp circuits people take for granted for things like lights, the clothes dryer and the heat/cooling system you left off your list (heat pump + air handler + emergency heat coils)...

Add in the 80% rule and 200amps doesn't go as far as one might hope in a gas free-house.

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There are some induction stove startups that are using batteries to not only not require 240v hookups but perform even better than a standard induction stove... the idea is that with cheap battery technology you can take advantage of the fact that not everything in your house will be running and charging at the same time.

I did not make the list, I was replying to the list given.

None of those devices pull the rated amount continuous except may the car charger which can be adjusted for less draw / longer charge time if needed.

Simply scheduling car charing for overnight would eliminate any issue, even so there is plenty of headroom on a typical residential system.

The 80% rule is for running circuits and for breakers. It has nothing to do with actual load capacity. I.e. with 200A service you can have well beyond 200A nominal worth of breakers in your box (250A), but when all those things are running it should still use 200A or less if the 80% rule was followed.

I run my washer and dryer on a single 15 amp circuit. Heat pump dryers are very efficient.

There are a lot of jurisdictions where piped natural gas is not available and 200 amp service is very common, as a practical matter it is not a big deal.

Requiring new builds to have even more electrical capacity and more robust incoming infrastructure is a win-win-win situation and hopefully that is what code & consumers demand.

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