MADRID (Reuters) -Spain’s grid operator Red Electrica has detected steep voltage swings in the system over the past two weeks that are capable of affecting power supply in the country that suffered a massive blackout in April, it warned in a document sent to market regulator CNMC.
It urged swift technical changes to be implemented to avoid any such impact. The CNMC said on Wednesday it was calling a public consultation for next week to address the issue.
(Reporting by Corina Pons and Andrei Khalip, editing by Pietro Lombardi)
