Energy storage in EV charging infrastructure
The growing number of electric vehicles has introduced new challenges but also new opportunities for our energy system. One key question concerns the load on the charging infrastructure: how can we ensure that electricity is available quickly, reliably, and cost-effectively when electric vehicles need it most? This is where energy storage systems come into play.
What is an energy storage system?
An energy storage system is a battery-based solution (BESS) that allows energy to be stored when it is abundant and affordable — for example, at night or during periods of excess solar or wind power production. The stored energy can then be used later during demand peaks or to reduce the load on the electrical grid.
An energy storage system can also generate revenue from reserve and flexibility markets when it is not supporting the charging infrastructure, ensuring that the system is always in productive use. In addition, it can serve as a backup power source in case of a power outage.
The role of energy storage in electric vehicle charging sites
At charging sites, especially busy locations such as service stations, shopping centers, and logistics hubs, electric vehicle charging can cause significant power peaks. When multiple vehicles are charged simultaneously at high power, the load on the electrical grid increases rapidly. This can lead to costly grid investments or require limiting charging speeds.
The benefits of an energy storage system:
Peak Shaving
Electricity is drawn from the storage system precisely when multiple vehicles are being charged simultaneously.
Reducing grid load
Charging is not entirely dependent on the grid capacity, as part of the energy can be supplied from the energy storage system.
Improved cost-efficiency
Electricity can be purchased and stored when prices are low and used later when prices are higher.
Enabling fast charging
An energy storage system allows fast charging at locations where the grid capacity would otherwise be a limiting factor.
Adding value with renewable energy
Energy storage systems can also be integrated with local renewable energy sources, such as solar power plants. This allows charging sites to operate partially self-sufficiently, enabling vehicles to be charged with locally produced renewable energy, which improves both environmental sustainability and energy independence.
Smart control maximizes benefits
Energy storage systems are not useful on their own without an intelligent energy management system, such as Enico EMS. AI-driven algorithms and real-time data monitoring allow the system to automatically optimize charging, energy usage, and costs. This makes the overall solution not only efficient but also safe and easy to manage.
Powering the Future of EV Charging Today
The number of electric vehicles is expected to reach millions in the coming years, requiring smart solutions. Energy storage systems provide a practical way to make electric vehicle charging infrastructure more flexible, greener, and sustainable. They are not just a technical add-on – they are a central component of the energy systems of the future.
How does a BESS work?
Benefits in a nutshell:
Power management: Balances load peaks and protects the electrical grid
Cost savings: Electricity can be purchased when prices are low and used when prices are high
Reduced grid investments: Lowers the need for upgrading the grid connection
Renewable energy integration: Solar power can be stored and used when needed
Enabling fast charging: Even in areas with limited grid capacity
How are the savings of an energy storage system calculated concretely in the context of EV charging?
We have prepared an example calculation, which you can download below.
Download an example calculation:
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Energy storage systems are not just a technical addition to electric vehicle charging infrastructure – they are a critical component of sustainable and efficient electrification. They help save costs, enhance the customer experience, protect the electrical grid, and enable the transition to a truly renewable energy system.
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From the outset, Enico has shown strong professionalism and a collaborative approach. Their flexibility and willingness to adapt to our specific needs have made them a highly valued partner throughout the process.
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