Currently, very few batteries are integrated into the Danish electricity grid. However, several companies are prepared to provide energy storage systems to address the increasing deployment of solar cells and wind turbines. Two innovative projects in Esbjerg and on Bornholm are underway, aiming to store excess energy using liquid salt until it is needed in the district heating or electricity grid.
Hyme, a company involved in these projects, plans to build an energy storage facility with liquid salt in Esbjerg, capable of storing energy for up to 14 days at 700 degrees Celsius. The company anticipates that these pilot plants will pave the way for introducing these systems in both the Danish and international markets.
Think tank Axcelfuture has highlighted the need for energy storage, including batteries, in the Danish electricity grid due to the growing reliance on unstable energy sources. Although long-term potential lies in storing energy using hydrogen through power-to-x technology, batteries are necessary until this solution becomes widespread.
The increasing adoption of batteries can be attributed to companies seeking to secure their own power supply, particularly in light of potential power cuts during the winter season. Falling battery prices have also played a role in their wider adoption. However, experts caution against solely relying on batteries for energy storage, as it may not be the most cost-effective solution for the grid.
Denmark’s battery capacity lags behind several neighboring countries, but experts emphasize that capacity alone is not the sole measure of success. While batteries have their place in balancing the electricity grid and stabilizing it, it is essential to celebrate the progress made with more cost-effective energy systems.
The Axcelfuture analysis, supported by the Tietgen Foundation, has been ongoing for six months and will continue until the end of 2024.
Source
Virksomheder klar til at levere: Batterier er sjældne i dansk elnet [Companies ready to deliver: Batteries are rare in the Danish electricity grid], Børsen, 2023-06-21
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