"Up until now we have delivered everything we were asked for," Iohannis told reporters after meeting Lithuania's president in Vilnius. "But outages happen because ... Romanian-Moldovan interconnections are completely insufficient. Most of the power Romania is offering passes through Ukraine."

Romanian power producers started selling electricity to Moldova at a capped price in October. Foreign Minister Bogdan Aurescu said earlier this week the European Union state was providing between 80% and 90% of Moldova's electricity needs.

(Reporting by Luiza Ilie; editing by Alan Charlish)