With HVDC and UHVDC lines there are progress on the transmission front. The main question though is the economical race between geographically decoupling your renewable power supply versus storage, this is something we will see play out in the next 10-15 years.

China recently finished a 3300 km UHVDC line from Xinjiang to the east coast with an expected loss of 1.5% per 1000 km.