Seriously, while a lot has been written about the need to update the grid and install more long distance transmission lines to support renewables, even with the current grid it makes much more sense to install wind and solar in locations where it is more efficient and then transmit the electricity elsewhere. In Texas, most of the wind farms are in West Texas hundreds of miles away from Houston, for example.
But the thing is: the pacific northwest should be ideal for wind power. So that would be the main emphasis. And then build a high power line to Nevada. Which delivers solar to the northwest and in the nights wind power to Nevada.
Germany already has a 1.4GW powerline to Norway operational, where we network the grid to optimize renewable utilization.