[nine_k]

Build solar where sun is abundant and space is unconstrained: in Sahara.

Quite a few technical challenges due to the sand, though.

[mannykannot]

Quite a few political challenges, as well. This is not the most stable corner of the world.

[lmm]

And then you end up spending far more on powerlines than it would cost to get working fusion.

[sandl]

Not really - ITER alone is expected to be in excess of $20 billion, that would buy you about 20 modern HVDC Transmission lines, each with a length of 1000 km and able to transmit 40 GW of power in total. That's a lot of power. :-)

http://electrical-engineering-portal.com/analysing-the-costs...