3 ms·

> (they even depend on large capacitors to start the compressors). Those are starting caps and have nothing to do with energy storage. The caps cause a lagging

> (they even depend on large capacitors to start the compressors). Those are starting caps and have nothing to do with energy storage. The caps cause a lagging in the voltage to cause a phase shift in the starting winding relative to the running winding which gets the rotor spinning. Once it gets up to speed it disengages. What I see are lots of people comparing charging loads to existing appliances but not the fact they these loads are in ADDITION. So we are still facing a large increase in electrical load.

smileysteve 4y ago
> these loads are in ADDITION. If, every household drives 200 miles a day If, those households fast charge at home instead of the commercial charging network that popular commercial entities have been installing (malls, gas stations, supercharger network) If the lithium ion batteries are fast charging with no pausing. If the modern electric car (or HVAC) doesn't pay attention to the rate plan that is based on grid capacity (they do) Tldr; If everybody connected to the same substation gets home at precisely the same time from a 200+ mile road trip, while the day is at its hottest, preheats the oven, takes a shower, and manually turns down their dumb thermostat, and schedules their car to rapid charge to drive another 200 miles in a few hours, Then yes, the grid and individual house would have major problems. But this is obviously a straw man.
smileysteve 4y ago
There are starting capacitors and running capacitors; the start ones do provide "storage" for initial energizing of the compressor. Yes, the starting one does disengage after start. But, if we're arguing the semantics of HVAC, we should also argue the semantics of car chargers. They don't jump straight to fast charging on plug-in. They negotiate with the car, checking battery levels, first cooling the battery pack, then, chooses between fast charge and slow charge based on state of the batteries (and optional user input), it also checks with your utility rate plan to see if it's optimal to charge.
- MisterTea 4y ago
  > There are starting capacitors and running capacitors; Not all single phase motors are cap start/run motors. > the start ones do provide "storage" for initial energizing of the compressor. No, they are phase shifting.

smileysteve 4y ago

> these loads are in ADDITION. If, every household drives 200 miles a day If, those households fast charge at home instead of the commercial charging network that popular commercial entities have been installing (malls, gas stations, supercharger network) If the lithium ion batteries are fast charging with no pausing. If the modern electric car (or HVAC) doesn't pay attention to the rate plan that is based on grid capacity (they do) Tldr; If everybody connected to the same substation gets home at precisely the same time from a 200+ mile road trip, while the day is at its hottest, preheats the oven, takes a shower, and manually turns down their dumb thermostat, and schedules their car to rapid charge to drive another 200 miles in a few hours, Then yes, the grid and individual house would have major problems. But this is obviously a straw man.

smileysteve 4y ago

There are starting capacitors and running capacitors; the start ones do provide "storage" for initial energizing of the compressor. Yes, the starting one does disengage after start. But, if we're arguing the semantics of HVAC, we should also argue the semantics of car chargers. They don't jump straight to fast charging on plug-in. They negotiate with the car, checking battery levels, first cooling the battery pack, then, chooses between fast charge and slow charge based on state of the batteries (and optional user input), it also checks with your utility rate plan to see if it's optimal to charge.

MisterTea 4y ago
> There are starting capacitors and running capacitors; Not all single phase motors are cap start/run motors. > the start ones do provide "storage" for initial energizing of the compressor. No, they are phase shifting.