Lead–acid batteries have been used for energy storage in utility applications for many years but it has only been in recent years that the demand for battery energy storage has increased.
Improvements to lead battery technology have increased cycle life both in deep and shallow cycle applications. Li-ion and other battery types used for energy storage will be discussed to show that lead batteries are technically and economically effective. The sustainability of lead batteries is superior to other battery types.
This technology strategy assessment on lead acid batteries, released as part of the Long-Duration Storage Shot, contains the findings from the Storage Innovations (SI) 2030 strategic initiative.
Advanced lead batteries have been used in many systems for utility and smaller scale domestic and commercial energy storage applications. The term advanced or carbon-enhanced (LC) lead batteries is used because in addition to standard lead–acid batteries, in the last two decades, devices with an integral supercapacitor function have been developed.
The Energy Storage Europe Association Guidelines on Safety Best Practices for Battery Energy Storage Systems (BESS) are designed to support the safe deployment of outdoor, utility-scale lithium-ion (Li-ion) BESS across Europe.
Consideration should be given to keeping BESS separate from combustible construction and storage, and away from living spaces (bedrooms, living rooms). Garages (with good separation/protection from vehicles) or similar unoccupied utility spaces with suitable fire-separation are the best choice for indoor residential BESS installations.
In early 2024, the price of residential BESS offered to end consumers in Europe ranged widely, from €400 to more than €1,200 per kilowatt-hour (kWh) (Exhibit 2). Historically, European OEMs built trust-based brands by highlighting their “made in Europe” status and rode the first-mover wave over the past ten years.
Additionally, DK1 guideline suggests that managing explosion risk for larger BESS should involve placing them outdoors. Organizations applying for permissions to install BESS are tasked with evaluating explosion risks and determining whether ventilation or other measures are necessary.
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