How we build Battery Energy Storage Systems (BESS)
We construct battery facilities (BESS – Battery Energy Storage Systems) that provide the grid with the flexibility our energy system requires. Technical quality and safety are at the core of our work – from the first analyses to the moment the facility is ready for operation.
A battery Energy Storage system (BESS) is the key to a stable and green power grid.
The battery system stores energy when production is high and can release it when demand rises. In this way, the system can smooth out fluctuations in both electricity prices and consumption and reduce the risk of power outages. At the same time, battery storage reduces the need for fossil backup solutions and imported energy. The result is a stronger, smarter, and more flexible power system.
How we set up a Battery Energy Storage System (BESS)
First, we identify the right location for the facility. Then, the system is designed to fit both the power grid and the local energy infrastructure. Foundations are poured, and the battery modules themselves are installed and connected to advanced control systems that enable them to store and deliver electricity as needed. Here on this page, you can see an example of the BESS facility we are establishing in Norddjurs Municipality.
Benefits of Battery Parks
Grid Stability
Batteries balance production and consumption by storing electricity when there is a surplus and feeding it back into the grid when demand is highest. This ensures a more efficient use of energy, while the facility also helps stabilise the grid, reduce price volatility, and lower the need for fossil backup solutions.
Renewable Energy That Creates Value—Locally and for Society
Battery parks are built using the same familiar batteries already used in millions of electric cars worldwide. In addition, the battery park is equipped with advanced safety systems that continuously monitor and protect both operations and surroundings.
Enhanced Energy Security
With batteries, Denmark can store more of its own green electricity and make better use of renewable energy. It also reduces the reliance on imported energy from countries we would prefer not to depend on.
Efficient and Cost-Effective
Battery parks are relatively inexpensive and can be established quickly. They require minimal infrastructure, and the short construction time combined with falling battery prices makes the solution economically attractive.
A Battery Works Like an Energy Tank. It stores electricity when there is a surplus and releases it again when needed.
The Heart of the System: Lithium-Ion Batteries. We use a variant called LFP (Lithium Iron Phosphate), known for being the safest and most stable battery chemistry on the market. Since it contains neither nickel nor cobalt, it is also a more sustainable choice. The technology is already used in the safest electric cars today.
The battery itself is built in several layers: cells are assembled into a battery pack, which is combined into a battery rack, and finally, everything is placed in a container.
The batteries are most often stored in standardized 20-foot containers.
A 20-foot container measures 6.1 x 2.4 x 2.9 meters, making them easy to transport and install. Noise-reducing equipment can be added to the sides or top of the container, depending on the product, with an additional height of about 1 meter. Today, one container can store about 5 MWh—equivalent to the energy in roughly 70 Tesla Model 3 batteries. The containers can be arranged modularly, like building blocks, which makes it easy to install, expand, or adapt the facility as needed.
Below is an example of the containers we will use for one of our upcoming projects. It is important to note that not all batteries come in this size.
