BESS: a new era for energy | Enel Group
The trend of capacity growth in Battery Energy Storage Systems, or BESS, is expected to continue in 2024. This is thanks to lower costs per kW, which are in turn due to
A battery energy storage system (BESS), battery storage power station, battery energy grid storage (BEGS) or battery grid storage is a type of energy storage technology that uses a group of batteries in the grid to store electrical energy.
Most of the BESS systems are composed of securely sealed battery packs, which are electronically monitored and replaced once their performance falls below a given threshold. Batteries suffer from cycle ageing, or deterioration caused by charge–discharge cycles.
Battery energy storage systems are generally designed to deliver their full rated power for durations ranging from 1 to 4 hours, with emerging technologies extending this to longer durations to meet evolving grid demands.
These include not balancing supply and demand, having to stop production due to grid problems, and low energy prices in the market. Our group currently operates about 1.6 GW of BESS, mainly in the United States. There is also a global growth plan between now and 2026 for an additional 2.8 GW, of which nearly 2 GW is already under construction.
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