...power grid on Friday night, the plant's owner CEZ said.
The news comes after a delay of about one week in restarting the reactor, after a fuel exchange, to fix a glitch on a generator in the non-nuclear part of the plant.
Temelin's 1,000 megawatt Unit 2 was running at full capacity on Friday morning.
The station is the biggest asset of CEZ, central Europe's largest power utility and the most profitable Czech company.