That's the case with a lot of seemingly interesting techs. Be they wind, water, solar, whatever. It helps. And if it's cost effective that's obviously great. Still, if you can unlock the near infinite power of converting mass to energy... it's still sci-fi for now though but so were cellphones (ugh I hate that example) and the very medium you're using. And in theory...

While I'm a fan of nuclear, mostly because the tech is there and it's been developed to the point that well it works pretty damn decently, you could also get a very easy amount of energy out of something like hydrogen.

Those of us who took chem classes know that it's easily produced with some electricity (windmill, solar cell, hydro whatever, comes in handy here). There seem to be other ways to produce it, makes sense. I don't know which is best, but I think electrolysis would be an easy way to do it locally. Of course the H is also pretty damn potent. A bit too potent for some (crash safety / storage problems). But I don't think any "too" ever stopped us from trying >.>

I suppose the current preference for electricity in cars is ease of delivery of fuel. It seems to have killed the H-car a bit. We have the network for electricity available. Much like that of gas and to some extent oil. Easy choice for say cars would be electricity. Fine, just generate it the right way then :P

It being the most abundant element in the universe makes it a fun choice too ^.^ It just gets angry when it goes boom.