Battery Terminology Glossary

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LCOS (Levelized Cost of Storage)

Average cost per unit of energy discharged over the system’s lifetime, including CAPEX and OPEX. 

LDES (Long-Duration Energy Storage)

Energy storage technologies that can discharge for many hours (commonly >4–6 hours, often 8–100+ hours)...

LFP (Lithium Iron Phosphate)

Li-ion chemistry known for high cycle life and good thermal stability. 

Lithium-Ion Battery

Dominant BESS chemistry, using intercalation electrodes and liquid or gel electrolyte (e.g., NMC, NCA, LFP).