Energy Management Systems, 2023 NEC - [220.70],(09min:12sec)

[@alvilla701]

Thank you very much Mike and team for sharing your knowledge. Your books are amazing

[@MikeHoltNEC]

😔

[@r1asimon01]

Hi Mike, always like your videos; high level (not pun intended) Level 1 and 2 chargers are not really chargers they are a receptacle to power the on board charger in all EV cars and supply the car with AC power. Level 3 chargers bypass the on board charger and provide direct DC voltage to the car at around 900 volts DC. This is also why the L3 chargers has thick cables to hook up to the car, they use active cooling as well as DC.

[@MikeHoltNEC]

You are 100% correct!

[@bassblastersc1094]

Hey Mike or anyone else.. Do you know of a code reference that allows or disallows for the running of CT wires in the same raceway as the current carrying conductors supplying the EVSE. Would there be a limit on how far these could be run together? I have seen some debate on this topic.. Thanks!🙏

[@MikeHoltNEC]

CT wires are permitted with power conductors (no length limit) see 300.3(C)(1).

[@MurffSurff]

Thanks Mike I love it

[@MikeHoltNEC]

😉

[@ianmburke]

4:08 Al From Home Improvement Creepin

[@Time-Trvlr]

Would the word modulate the current be appropriate.?

[@MikeHoltNEC]

Instead of what?

[@Time-Trvlr]

@@MikeHoltNEC turning the charge circuit On and Off. My inverter has built in battery charger that has CanBus RJ45 and the battery has a BMS that communicates state of charge. The charger then responds by reducing the available current to the battery. IE modulating somehow. I would expect on a simpler status that the battery voltage itself could be interpreted as state of charge and the charge available be reduced to preserve the cells.

[@Time-Trvlr]

@@MikeHoltNEC I know very littler about EV autos and the chargers. I now speculate that the charge port could be AC and the AC to DC charger could be on the car itself. Handling every thing from 120 Vac to 480 three phase would make for a complex charge port on the auto.

[@MikeHoltNEC]

I guess you can use that term.

[@acknative1]

We are going to install a lot more wind generators to supply all this energy.

[@JohnThomas-lq5qp]

Philly has over 310,000 single family residences with probably halve with no garage or driveway along with a lot of apartment complexes who will never upgrade thier service to provide EV chargers. The nearest public charger to my house is over two miles away & when I get gas usually only one of the two are working. Appears unless they can get fast EV chargers available over halve of the city will never purchase an EV vehicle. Wonder how California & a few other states that are banning naturel gas in sll new homes in next 8 years followed in ten years later that all existing homes stop using natural gas. So it could cost well over $30,000 to install a possible 300 amp service to replace existing gas heat & appliances & supply power to run 100% electric house & two 50 amp EV chargers. Foot dragging Ultiliy compsnies will never have the necessary new generating units, high tension lines or hard to get local distribution transformers in place for greatly incresed demand.

[@MikeHoltNEC]

Yep...

[@steveloux4709]

The challenges here in California are all too plain to everyone except our politicians. The reality is we need to maintain the one nuclear power plant we have left, and yes, natural gas will be with us generating electricity for a very long time - all of which is necessary to maintain our state's base load. And the conundrum of EV ownership for those who live in multi-family complexes, the newly permitted "ADU" and similar where parking one's car on the city's streets is the only choice, means it will be a very hard sell - even in the People's Republic of Berkeley. ;)