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Energy agreement requires batteries

26 July 2019 

Thanks to the energy agreement, the convenience of energy from gas and coal will be behind us in the future. We will have to use energy in a completely different way. By 2030, the amount of green electricity produced from nature in the Netherlands must have quintupled. This requires hundreds of additional windmills, and millions of solar panels will be installed.

 

The downside of this type of energy is that it is only available the moment the sun shines and the wind blows. So a different approach is required. The world will work with ‘smart devices’: devices that switch on the moment enough power is available. In the same way we will charge the electric car and industry will have to work with electricity as well. In the future, the chemical plant will achieve top production on a windy

 

But it will also prove necessary to store electricity. Eneco recently built Europe’s largest battery in northern Germany. The battery is seventy meters long and has reportedly cost over 30 million euros. The wind energy that can be stored in it is just enough to supply 5,300 households with electricity once a day. This mainly proves that this solution is too expensive and extensive for the power supply.

 

Nevertheless, Elfa expects that large batteries will soon form part of the electricity network. After all, these mega batteries are useful to keep the electricity grid in balance. The frequency of the electricity grid must remain constant exactly at fifty hertz. Nowadays, gas-fired power plants can still be shut down when the wind blows hard, or out of gas on cloudy days. But in the near future those power stations will no longer exist. Batteries can then form a buffer that provides stability. Including the batteries from cars. We will soon have millions of electric cars in the Netherlands. These cars stand still more than 90% of the time. At peak times, owners can choose to return power from the car battery to the electricity grid.

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