Battery Market Intelligence · IEA scenarios · Last reviewed 2026-09-16
| Geography | Global |
|---|---|
| Year | 2024–2026 (as sourced per figure) |
| Battery scope | Lead-acid + lithium-ion; scope stated per figure |
| Unit | US$ / yuan / TWh — stated per figure |
| Data source | IEA, customs/industry data, research estimates (see Sources) |
| Metric | Value |
|---|---|
| EV battery demand (2024) | ~1 TWh |
| EV battery demand (2030) | >3 TWh |
| Stationary storage (2030, STEPS) | ~400 GWh |
| Stationary storage (2030, APS) | ~500 GWh (~12% of EV battery demand) |
Source: IEA Global EV Outlook / battery outlook scenarios (STEPS = stated policies, APS = announced pledges).
The tripling rests on two engines: EVs (the dominant share, compounding with fleet electrification) and stationary storage (the smaller but fastest-growing layer). The scenarios differ on pace, not direction — both show the same shape: EVs first, storage rising behind them, and manufacturing capacity racing to match (see China's lithium output and exports).
The forecast is a scenario, not a promise. The levers that bend it: EV policy (subsidies and phase-out dates), battery prices (see the price curve), and grid investment for storage. The scenarios also assume manufacturing capacity keeps pace — an assumption the overcapacity-then-tightening pattern of recent years has repeatedly tested.
The compound growth rate: ~1 TWh (2024) to >3 TWh (2030) implies roughly +20% per year compound — a doubling roughly every 3.8 years. That rate, not any single year's number, is what capacity planning must build around.
I would argue: The demand forecast's most reliable fact is the shape, not the number — EVs first, storage second, both tripling-scale this decade — and the difference between the IEA's scenarios is mostly timing, which is where the real uncertainty lives.
Why I think so: Demand forecasts inherit their politics; the physical direction does not. Anchoring on the shape — tripling demand, storage rising as the second engine — survives scenario revision better than any single TWh figure, and it is what sourcing and capacity planning should build around.
This is the author's editorial view, not investment or purchasing advice.
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