The extreme heat of recent weeks has led to sky-high energy consumption. The sale of fans and air conditioners is also through the roof; bol.com records an increase of 3,000 percent.

While the power consumption of households and small businesses is about 20 percent higher during a normal heat wave, Essent and Eneco see energy consumption in the current heat wave that is no less than 30 percent higher than normal.

"From the first tropical day on Wednesday, August 5 to Thursday, August 13, the daily consumption rose to 30 percent," said an Essent spokesman on Saturday. Eneco also saw electricity consumption increase by up to 30 percent as the heat continued.

Both energy suppliers think this is because it does not cool down at night, people work from home a lot, go on holiday less as a result of the corona virus and the efficiency of solar panels is lower when the temperature increases.

"We also think that working from home during the heat wave means that air conditioning and fans are used more often," says the Essent spokesperson. "Many people have purchased a fan or air conditioning," says Eneco.

Energy bill not suddenly 30 percent higher

The figures from bol.com show that many people have recently purchased a device for cooling. "Since the start of the heat wave, we have seen growth of 3,000 percent over the same period last year," said a spokesman for the web store. "It concerns hundreds of thousands of articles."

MediaMarkt also saw sales of air conditioners and fans skyrocket. More such devices were sold in just over a week than in the entire month of August last year. The chain of electronics stores has already seen sales of mobile air conditioners double since April. "With the exception of July," said a spokesman.

"In previous years it was warm in July, now August seems to be the hottest month." Essent states that people do not have to worry that the energy bill will also be 30 percent higher. "The increase of 30 percent is a brief snapshot. The bill depends on the consumption of electricity and heat throughout the year and fixed costs and taxes."