From the chart:
I1 and I2 are the currents through two branches of a circuit, and it looks like mesh or loop analysis is being applied.
The key equations written on the chart are:
6(I1 - I2) + 12I1 = 6
6(I2 - I1) + 3I2 = 0
Let’s simplify and solve these two simultaneous equations...
Nah, not a good match to use as the primary vehicle if you travel frequently. Infrastructure, especially charging stations, service/roadside support, is yet to be developed if you are to depend on a typical 300km range vehicle.