From your first link:
Electricity in the German-Austrian market is traded at a uniform price. At times of high wind power production in the north of Germany, the zone’s electricity price is pushed right down. As a result, power stations in southern Germany are being switched off, as their running costs mean they cannot turn a profit.
At the same time, demand picks up as domestic industrial consumers and importers from abroad take advantage of the cheap power. This means huge amounts of electricity should flow from north to south.
Too much cheap power. The horror.
The problem with it isn’t even something that you need new technology or equipment to fix. Just a policy change on when to take power stations off line.
As for the second link, you’re not talking about a large energy grid with many solar and wind farms spread over a wide area. You’re taking about an island. One (1) cloud cuts power. For islands and remote, unconnected towns, petroleum is going to be needed for a long time.
Even then the story describes a solution being put in place. A solution with added benefits:
After Anahola comes online, Rockwell expects Kauai to see days when clear skies result in solar generation beyond what KIUC’s grid can carry. Instead of throwing away the excess, McDowall says, KIUC could use the Anahola battery storage system to absorb it and then release that power after the sun goes down.
