Why BESS

Battery Energy Storage Systems (BESS):
Powering Renewable Transformation

BESS are utility-scale energy storage solutions that capture surplus electricity from renewable sources like solar or wind and dispatches it when demand peaks or grid reliability requires stabilization. In a traditional system powered by renewables (PV), all energy produced is instantaneously injected into the grid.

At any given moment, the grid will be able to dispatch the electricity produced, if the demand is greater than the supply. When the supplied energy is greater than the demand, with no viable storage options, renewable energy generation may be reduced or, ultimately, curtailed. These systems serve as critical infrastructure for modern energy networks, enabling renewable integration while enhancing grid resilience.

BESS Integration

With the implementation of BESS, the excess in renewable energy production can be temporarily stored, making the system more efficient. The energy stored in a BESS system can be released when a demand surplus occurs (managing peaks). This mechanism can significantly reduce the waste of energy, prevent revenue loss, and strongly improve the efficiency of the electrical grid.

BESS can normally be implemented in two ways:

  • Standalone: if charged via the power conversion system.
  • Coupled: if charged directly by a renewable energy source (such as PV).

Key Benefits

Capacity Reserve

BESS can serve as a capacity reserve, providing extra energy during peak demand periods and thus preventing potential shortages.

Revenue Enhancement

Operators can benefit from revenues arbitrages by exploiting the electricity price spread between peak and off-peak periods.

Capacity Reserve

Thanks to the development of BESS, it is possible to gradually lower the reliance on high-emission traditional energy sources such as fossil fuels.

Combine Multiple Application Scenarios

BESS can work with solar power, wind power,charging stations, and other applications to create the greatest economic benefits.

Frequency Smoothing

BESS can provide support to the grid operator by regulating the energy flow and ensuring short-to-medium term frequency smoothing.

Grid Support

BESS can provide additional support to the grid operator in critical moments, supplying stored electricity in case of unpredictable events (e.g., blackouts).

BESS Lifecycle

Depending on the type of battery, a BESS system should last 15-20 years. Especially when combined with frequent maintenance and combined with systems to prolong the asset’s lifespan.

Modern BESS recycling recovers >95% of materials by weight (metals, plastics, electrolytes, etc.), with <5% non-recoverable residues safely treated via incineration or encapsulated landfill. By 2035, EU regulations will mandate near-zero landfill disposal.

The ATON Energy Blueprint