IEEE Spectrum have a story on Japanese attempts to throttle back Solar deployments.
Clashing energy interests on the Japanese island of Kyushu have prompted Japan's government to clamp down on solar power development nationwide. While the government calls it a necessary revision to assure grid stability amidst rapidly rising levels of intermittent solar energy, critics see a pro-nuclear agenda at work—one that could stunt Japan's renewable energy potential.
In response to the threat to grid stability Japan’s Ministry of Economy Trade and Industry (METI) is allowing utilities to refuse interconnects from upcoming Solar developments.
On 28 September, Kyushu Electric announced that it had frozen the interconnection of large solar developments.
...
At least four more utilities followed Kyushu Electric’s lead and froze solar interconnections on their grids, arguing that the solar surge threatened their ability to balance supply and demand.
(Score: 0) by Anonymous Coward on Friday January 30 2015, @07:31AM
'if the grid becomes "unstable" then nuclear powerplants are pulled first and rather quickly from the grid."
i mean that they "scram" the reactors and they stop producing (augmenting) electricity.
ofc you cannot pull a scrammed nuclear reactor from the grid completly because in a scrammed state it needs electricity to stay cool else it would pull a fukushima : )