Electric is way cleaner that fossil, even in considering the infrastruture to use it if on grid and the properties of the panels if off grid. The cost of conversion would take several years to recoup solely from fuel savings, but it can be done especially when you consider there's no longer an engine to maintain with consumables or a transmission and coolant system. Depending on your motor design you may have to replace brushes or bearings periodically, and the battery pack will need replacement every 3 - 6 years.

Weight isn't that much of a factor with EV's. It was up until recently (electric cars have been produced since the 1900's) but with vastly improved energy density of the newer battery technology you can get that 50 miles with about 400 - 500 pounds of battery. Add the motors and control circuitry and your net weight is less than a stock VX. Remember, we're talking about removing the ENTIRE drivetrain except axles. The fuel tank, all its lines and the entire coolant system including the heater core and radiator.

Again, this is just a mental exercise and won't appeal to everyone. Especially the average American. I'll eventually fab the brackets and probably tinker with a Trooper just to have a little fun. Especially light-to-light.

As for the biodiesel project... The engine and 5-speed will be ordered as soon as payment clears from someone providing a new home for the Dragon. Then the IronMan gets torqued!