Some negatives I've found are UHV lines used for renewable transmission will see low utilization and the switching equipment is quite unreliable so overcapacity is needed.
I did find a book with some details in case anyone wants to dig deeper: Ultra-high Voltage AC/DC Power Transmission (2018) (http://gen.lib.rus.ec/book/index.php?md5=7AF7982201735A290D8...)
Some negatives I've found are UHV lines used for renewable transmission will see low utilization and the switching equipment is quite unreliable so overcapacity is needed.
I did find a book with some details in case anyone wants to dig deeper: Ultra-high Voltage AC/DC Power Transmission (2018) (http://gen.lib.rus.ec/book/index.php?md5=7AF7982201735A290D8...)