This could work out. We need, for example, ultra-high-voltage DC lines from the US wind belt to areas with real loads. The US wind belt is roughly from the Texas panhandle north to Canada. Plenty of wind, no big power users. But nobody has been able to build lines west to California or east to Illinois, Indiana, Ohio, and Michigan, where the loads are. This is held up by land acquisition, not technology.

China has something of the same problem. The cheap power sources are in the northwest, and the big loads are in the southeast. So China has long million-volt UHV DC lines.