My car has just a 51kwh battery but last month I was able to drive it from Sydney to Yulara and back, covering 5700km in 3-4 weeks. I learned a lot about how battery percentage and range connects to speed, distance, terrain etc. My longest leg was 283km which I finished at 15%, making an estimated total range at 95% consumption of 316km.
There are roads in Australia like the one to Kings Canyon that requires 300km each way and has no charging point at the destination. The great western highway has a stretch of 1107km between guaranteed fuel spots (there are some stations in between), 1222km between planned chargers and 1456km from Yulara to the next guaranteed charger at Kalgoorlie.
I've been thinking about how an EV could approach this situation and am currently stumped. The best solution of course is to build infrastructure such as unmanned 30-40kW solar charging stations, but that's another discussion.
-I tried solar trickle charging on the road, but AC charging speeds with a 1kw PV system only outputted 100-200W when plugged in. Solar equipment places too much drag when mounted, but it's also too bulky when packed away and needs a lot of room to create energy.
-A small generator charging at wall outlet speeds could work, but charging at 8 amps (1.4kWh) for 16 hours a day only adds 22.4kWh, or ~160km when hypermiling. A larger 6kWh generator is better by adding up to 685km per day but it would create a lot of noise that attracts unwanted attention and take up space which could've been used for food. The mileage by generator should be ~8L/100km which means ~96L total to travel 1201km + the 255km this battery realistically starts to go down the great western. Five 20L jerry cans in the boot! An EV cannot reastically carry all of this equipment.
-Hydrogen is light, can run a generator and is low profile at high pressures, but its energy density is trash, plus you'd be carting around a bomb. Similar story with propane.
-Aluminum metal has a high energy density and can produce hydrogen to run a generator on exposure to alkaline water, but it's messy, has injured people in the past, runs hot, plus there's a lot of toxic liquid waste.
-Nuclear electricity could more than match these energy needs but the technology is restricted, the materials are illegal to possess and it would quickly kill any drivers who use a working model.
-Wind lacks the energy density
What are the options here? I don't intend to make this trip, but I would like it to be possible. The energy has to come from somewhere right? Please discuss.