RESEARCH
Global Battery Storage Capacity Additions for 2025 Split 100 GW to 112 GW Across Major Industry Trackers
Major energy-storage trackers agree 2025 was a record year for grid battery deployment but disagree on the scale: BloombergNEF counts 112 GW of new capacity (a 48% jump from 2024), the IEA reports 108 GW (up 40%), Wood Mackenzie logs 106 GW (up 43%), and Rystad Energy's whitepaper puts the figure at just over 100 GW. All four sit within roughly 12 GW of each other, but that gap is real money and real planning risk for anyone sizing supply chains or grid interconnection queues against a single headline number.
Findings
- BloombergNEF reports 112 GW / 307 GWh of new battery storage capacity added globally in 2025, a 48% increase over 2024.
- The IEA independently reports 108 GW of global battery storage additions for 2025, a 40% year-over-year increase, in its Global Energy Review 2026.
- Wood Mackenzie put the 2025 figure at 106 GW in its own press release, describing it as the market surpassing the 100 GW annual-installation milestone for the first time.
- Rystad Energy's Energy Storage Outlook whitepaper reports just over 100 GW (280 GWh) installed in 2025, the most conservative of the four trackers, while still confirming BESS overtook pumped hydro as the largest global storage source by cumulative capacity.
Delta Engine result
↔ Divergence Detected — Δ 0.4211 (threshold 0.05)
- BloombergNEF T2 92
- Wood Mackenzie T2 90
- IEA T0 85
- Rystad Energy T0 60
Evidence quality
avg 40 · min 25 · max 55 · spread 30