I have a TWC only for two teslas which are not mine. Therefore the vehicles are mainly not at home. If TWCManager has "non-scheduled charging" or "charge now" policy selected. Both cars are always awake. See the extraction of the logfiles:

2021-01-21 07:48:41,190 - Policy 01 New policy selected; changing to Charge Now
2021-01-21 07:48:41,212 - TWCManager 01 Limiting charging to 32.00A.
2021-01-21 07:48:41,232 - TWCManager 01 Charge when above 6A (minAmpsPerTWC).
2021-01-21 07:48:41,258 - TWCSlave 01 SHB 7132: 00 00.00/00.00A 0000 0000 M: 09 00.00/32.00A 0000 0000
2021-01-21 07:48:44,610 - TeslaAPI 01 Car API wake car failed. State remains: 'asleep'. Will try again in 30 seconds.
2021-01-21 07:48:47,058 - TeslaAPI 01 Car API wake car failed. State remains: 'asleep'. Will try again in 30 seconds.
2021-01-21 07:48:53,322 - TWCManager 01 Slave TWC 7132: Delivered 503 kWh, voltage per phase: (237, 234, 235).
2021-01-21 07:48:53,324 - TWCManager 00 Slave TWC 7132: Delivered 503 kWh, voltage per phase: (237, 234, 235).
2021-01-21 07:49:03,707 - TeslaAPI 01 Weitsox göppel is not at home. Do not start charge.
2021-01-21 07:49:13,997 - TeslaVehic 01 Car API returned 'vehicle unavailable: {:error=>"{"error": "timeout"}"}' when trying to get status. Try again in 1 minute.
2021-01-21 07:50:17,552 - TeslaAPI 01 White Knight is not at home. Do not start charge.
2021-01-21 07:50:17,572 - TWCManager 01 Limiting charging to 32.00A.
2021-01-21 07:50:17,582 - TWCManager 01 Charge when above 6A (minAmpsPerTWC).
2021-01-21 07:50:18,812 - TWCManager 01 Slave TWC 7132: Delivered 503 kWh, voltage per phase: (237, 233, 236).
2021-01-21 07:50:18,814 - TWCManager 00 Slave TWC 7132: Delivered 503 kWh, voltage per phase: (237, 233, 236).
2021-01-21 07:50:43,506 - TWCManager 01 Limiting charging to 32.00A.
2021-01-21 07:50:43,528 - TWCManager 01 Charge when above 6A (minAmpsPerTWC).
2021-01-21 07:51:14,271 - TWCManager 01 Limiting charging to 32.00A.
2021-01-21 07:51:14,286 - TWCManager 01 Charge when above 6A (minAmpsPerTWC).
2021-01-21 07:51:22,521 - TeslaAPI 01 Weitsox göppel is not at home. Do not start charge.
2021-01-21 07:51:26,070 - TeslaAPI 01 White Knight is not at home. Do not start charge.

And more than an hour later:
2021-01-21 08:54:27,059- TeslaAPI 01 Weitsox göppel is not at home. Do not start charge.
2021-01-21 08:54:30,250- TeslaAPI 01 White Knight is not at home. Do not start charge.

As checked with the Tesla app, both cars are always awake during "non-scheduled" or "charge now" policy.