grid-scale battery storage

Syllable breakdown

Dictionary meaning

large stationary battery systems — typically using lithium-ion, flow battery, or emerging chemistries — deployed to store electrical energy on the power grid at scales from megawatts to gigawatts, enabling balancing of supply and demand, integration of variable renewable generation, and provision of grid stability services; grid-scale battery storage can absorb surplus electricity during periods of high renewable output and low demand, then discharge during peak demand or when wind and solar generation is insufficient; it is considered essential infrastructure for high-penetration renewable electricity systems, complementing longer-duration storage technologies such as pumped hydro; falling battery costs driven by the electric vehicle industry have made grid-scale storage increasingly economical since the 2010s