2 Points I would like to address as problems.

1. Storage of petrol has another problem, Petrol goes off if stored for long periods. In fact it start deteriorating at about 3 months. So storage is not a solution.

2. Charging passengers in your vehicle, requires that you have a public drovers license, which requires you to do a driver test every year, and secondly your vehicle insurance will climb dramatically because the vehicle is now used for public transport.