Battery system failures plunged 98% over seven years, but older units need retrofits

A new Electric Power Research Institute analysis shows energy storage system reliability has improved dramatically since 2018, though early-generation installations may require maintenance or upgrades to continue operating safely.

First covered Oct 13, 2026 · 10:35 AM PT · 1 article · no longer in the live window

Coverage

28d Utility Dive Battery system failures fell 98% in 7 years, but older systems need special care: report — The Electric Power Research Institute analysis found a dramatic drop in energy storage system failures from 2018 to 2025 amid a host of technology and project…

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Appeared in: 2026-10-13 (#1) · 2026-10-14 (#3)

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