fusion power is closer then you think. the next exparimental fusion power plant (called idin) is going to be built in a few years. they chose the location next year. so far in the running are canada, japan and france the US droped out a wile ago.
fusion power is vary cheap it only costs 34 cents to extract enough tritium from heavy water to prodose the same amount of elecctricity as 30,000 gallons of gas. and the waste is heliem.
but fusion requires a large amount of energy to maintain, thats why canada is such a good choise for the idin, which i belive is a tomomak reactor(shaped like donut)becase we can put it right next to a Candu reactor (fistion reactor).
but once fution is working it becomes vary cheap. but countyrs like the Us will probable not adopt it right away for the same reson why there is still so much homeless in the states…. there is no money in it. and the bottom line is all the capitilist cares about