The key is in left hand drawer of the table by the kitchen wall .

The cabin has 2 50 Amp 240 Volt Electric Vehicle (EV) charging receptacles on the front porch with NEMA 14-50 sockets. The NEMA 14-50 is standard for most recreational vehicle (RV) parks. You will need your own adapter to plug your car's charging cable into the NEMA 14-50.

The cabin has a 100 Amp main circuit breaker. It is theoretically possible to flip that breaker if you charged 2 vehicles, turned on all the electric wall and baseboard heaters and the clothes dryer, but Tom's test with 2 teslas charging for a total potential of 72 amps and normal cabin heating with 2 families in February showed we had enough capacity.
The main circuit breaker is on south side of the back outside wall.
See how to access the circuit breaker.
Most cables that come with cars are 20 ft long, so will reach with two cars side by side.

A Tesla 3 Long Range (75 kWh battery) and Tesla X (75 kWh battery)
Tesla 3 with a second generation Universal Mobile Connector (UMC) which is limited to 32 amps.
Tesla X with a Gen 1 Mobile Connector - 40 amps
Voltage drop for 70 ft of AWG 6 wire is 3V.

Total Electrical Load:
Cabin EV charging 2- 50 amp circuit breakers.
Cabin Main circuit breaker is 100 amps.

2 Tesla's charging (40 + 32) 72 amps.
Clothes dryer 23 amps.
Electric wall heaters 16 amps.
Baseboard heaters 3.2 - 6.3 amps.
Total with 1 wall heater 88 amps

However cars will typically draw less than the max depending on the state of charge and measured voltage drop on the circuit.

Other EV current draw: (most popular after Tesla)
You can get NEMA 14-50 adapters for most EVs and Plug-in Hybrids.
They typically draw 32-40 amps.

Chevrolet Bolt
Nissan Leaf    30 A
BMW i3
Volkswagen e-Golf
...

Cost of Charging: Tom's test:
24 hrs without EV Charging 37 kWh.
24 hrs with charging one Tesla 3 104 KWh
Variable electrical rates = $0.144 per Kwh
67 kWh x $0.144 = about $10.

There are no time-of-use rates with Liberty Utilities at Tahoe.

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