McRat
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- '22 R1T, MXLR+, 2xVolts, MC's
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In the US, we use the following 'low voltage' AC services that EVs can digest:
120 vac - This is found everywhere, homes, businesses, public buildings. It is seldom found in parking lot lights and street lights.
240 vac - This is also available at houses and apartments. This is usually not an option at commercial and public buildings.
208 vac - This is the 3 phase power that is found at commercial and public buildings which EVs can absorb.
277 vac - This is one leg of 480 vac 3 phase power, which is found at commercial and public buildings. This is what most of your street lights, parking lot lights, and warehouse lighting is. Tesla doesn't advertise this anymore, but they can all charge off 277 as of 2021.
The charging speed is in this order:
120 vac - base
208 vac - 173% as fast
240 vac - 200% as fast
277 vac - 231% as fast
The kicker is the 277v advantage over 208v at businesses and public buildings - 133% as fast.
When you install L2 charging at a commercial or public buildings, you normally set it up for 208 vac. Why? 240 volts isn't available.
But 277 vac is available, why can't we use that? Because only Tesla supports it. All other brands do not AFAIK.
120 vac - This is found everywhere, homes, businesses, public buildings. It is seldom found in parking lot lights and street lights.
240 vac - This is also available at houses and apartments. This is usually not an option at commercial and public buildings.
208 vac - This is the 3 phase power that is found at commercial and public buildings which EVs can absorb.
277 vac - This is one leg of 480 vac 3 phase power, which is found at commercial and public buildings. This is what most of your street lights, parking lot lights, and warehouse lighting is. Tesla doesn't advertise this anymore, but they can all charge off 277 as of 2021.
The charging speed is in this order:
120 vac - base
208 vac - 173% as fast
240 vac - 200% as fast
277 vac - 231% as fast
The kicker is the 277v advantage over 208v at businesses and public buildings - 133% as fast.
When you install L2 charging at a commercial or public buildings, you normally set it up for 208 vac. Why? 240 volts isn't available.
But 277 vac is available, why can't we use that? Because only Tesla supports it. All other brands do not AFAIK.
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