> HVDC and HVAC transmission lines already only see single digit transmission losses over hundreds of miles
Quite a bit of the world is thousands of miles from sunlight at any particular time. Being able to power Northern Europe off solar farms in the Sahara has the potential to fix a number of challenges with green energy.
Morocco has been working on this plan for ages. Coast to coast (~3000 miles) in the US is much less than 9%. It's possible with current technology, just nobody has the inclination to execute right now.
Quite a bit of the world is thousands of miles from sunlight at any particular time. Being able to power Northern Europe off solar farms in the Sahara has the potential to fix a number of challenges with green energy.