The BIGGEST problem with clean energy

There's currently only one viable option, and that's hybrids.
EVs aren't viable yet due to range.
Hydrogen is even less viable, they will always cost 3x the amount of gasoline. And it takes gasoline (or coal, or nuclear) to make hydrogen.
Just a simple hybrid with a 500cc 2 cylinder engine, a 10HP generator, and a 60HP motor, all in a single passenger, three wheeled cockpit with a total weight of about 1500 LBS.
That's the passenger transport of the future.
Have 2 people transport as well, a little larger.
or a regular sedan car with a 3 cyl 900cc engine, 20HP generator and ~120HP electric motor.
The engine providing thrust only, the batteries and engine providing low speed cruising, and overtaking power.