In a Dutch government TV campaign called "Flip the Switch" an actress warns viewers about their electricity usage.
"When we all use electricity at the same time, our power grid gets overloaded," she says. "This can cause malfunctions. So, use as little electricity as possible between four and nine."
It is the sign that, in one of the most-advanced economies in the world, something has gone wrong with the country's power supply.
The Netherlands has been an enthusiastic adopter of electric cars. It has the highest number of charging points per capita in Europe.
As for electricity production, the Netherlands has replaced gas from its large North Sea reserves with wind and solar.
