Six years? Oh, my. That means the energy from these systems won't be available until sometime in the next decade, and in the meantime it will do nothing to bring down today's cost of electricity. That's reason enough right there not to do it.
/s
In my state, a transmission company just threw in the towel on building an HV line from the southern part of the state to the northern (something that would have come in handy in the Northeast blackout a few years ago). The environmentalist wackos filed lawsuit after lawsuit to stop it, and the company finally said to hell with it, just go freeze in the dark.
This is the thing that these windies and solies don't understand. Sure, you can put solar panels out in the middle of the desert, you can put windmills out in the boonies where the wind blows unobstructed, but you're going to have to build millions of miles of transmission infrastructure to move that energy, and for every mile there will be environmentalist wacko lawyers filing a lawsuit to stop it.
I forgot to add that the company trying to build the line had tried for seven years to get it built, and finally gave up. In this country, you can’t even get transport infrastructure built, much less the generating capacity.