No one-size-fits-all for smart energy networks
Using a smart grid makes it possible to store energy from solar panels in the battery of an electric car, making the car extremely sustainable to operate and reducing the need to offset surplus energy. However, the number of electric cars, the number of solar panels and the expected growth of these technologies is not evenly distributed across regions of the Netherlands. To achieve a smooth energy transition, more attention needs to be paid to regional differences. These are the conclusions of energy researchers working at Utrecht University and Eindhoven University of Technology.
These days, an increasing number of Dutch roofs are being fitted with solar panels. On sunny days (like we saw in July), there's a good chance that such households generate more electricity than they use. The surplus can be offset (i.e. returned to the grid), but this will be considerably less profitable in the future.
Smart grids
At the same time, the Netherlands leads the way in terms of electric transport. More and more households have an electric car. These cars can be charged using solar power from smart local electricity networks, making driving truly sustainable. The car battery can also be used as a household battery, handy for when the solar panel generates more electricity than is needed for immediate consumption, for example.
Other target groups
In a publication in Energy Research & Social Science, energy researchers Mart van der Kam, Toon Meelen and Wilfried van Sark from Utrecht University, and Floor Alkemade from Eindhoven University of Technology, argue that in some regions, the combination of solar panels and electric cars won't work as effectively. “There are huge regional differences in the number of solar panels and electric cars”, explains Van der Kam. “This is because the two technologies attract different target groups. You find more solar panels in rural areas, for example, whereas the majority of electric cars are driven in towns and cities. In addition, we're seeing a much steeper adoption curve for one or other of these technologies in some areas, implying that the gap will only get bigger in the future.”
No one-size-fits-all
The researchers conclude that we need to consider per region how smart grids should be used. Van der Kam: “Our results demonstrate the importance of aligning future energy policy with the local situation and not relying on a ‘one-size-fits-all’ solution.”
The publication can be read free of charge on the website of Elsevier until 2 September.