Energy Storage Demand to Surge 41% in 2026
Energy storage is set for a 41% growth in 2026! Discover key trends and investment opportunities in our latest analysis.
The numbers are almost hard to believe. It took solar PV eight years to grow from 10 GW to 100 GW in annual installations. Wind power needed fifteen. Energy storage did it in four.
That single data point, buried in BloombergNEF's *Energy Storage Outlook H1 2026* report, tells you more about the trajectory of this sector than any percentage growth figure could. This isn't a market slowly finding its footing — it's a technology deployment cycle that has already hit escape velocity.
BNEF's latest report counts 112 GW/307 GWh of new non-pumped hydro energy storage added globally in 2025, a record that itself surpassed the firm's own prior forecast of 92 GW/247 GWh by a significant margin. Now BNEF is projecting 158 GW/459 GWh for 2026 — a 41% jump year-over-year. Over the next decade, the firm expects annual additions to nearly double again, reaching 308 GW by 2036, with cumulative global capacity hitting 2.9 TW/10.5 TWh.
Put that in perspective: 10.5 terawatt-hours of installed storage capacity globally would represent a fundamental restructuring of how electricity grids absorb, dispatch, and balance power. That's not incremental improvement. That's a different grid.
The Growth Forecast That Keeps Getting Revised Upward
One of the less-discussed but telling details in BNEF's report is the pattern of upward revisions. The 92 GW forecast for 2025 was itself a record projection at the time. The actual number came in at 112 GW. BNEF has since raised its expectations for 2026 and the entire decade-long outlook accordingly.
When a market intelligence firm repeatedly underestimates a market's growth, that's a signal worth paying attention to — not just about the market, but about the limits of conventional forecasting in a sector moving this fast.
The 41% increase projected for 2026 is notable partly because it's happening against a backdrop of slowing momentum in adjacent clean energy sectors. Solar PV and wind additions are experiencing a global deceleration, driven by supply chain constraints, permitting backlogs, and policy uncertainty in key markets. Energy storage, by contrast, is accelerating. That divergence deserves scrutiny.
Part of the explanation is structural. Storage doesn't just follow renewables — it increasingly enables them. As solar and wind penetration deepens in mature markets, the economics of storage improve automatically: wider intraday price spreads, more volatility to arbitrage, and greater grid operator demand for dispatchable capacity. Storage benefits from the buildout that already happened, not just the buildout still to come.
Geopolitics as an Unexpected Tailwind
The Middle East conflict introduces genuine uncertainty into BNEF's outlook, and the firm's head of global energy storage analysis, Isshu Kikuma, is candid about that. Rising oil prices driven by geopolitical tensions could push up shipping and manufacturing costs. Most of the industry's supply chain runs through China, which isn't directly affected by the Iran conflict, but indirect cost pressures are real.
What's less obvious — and more interesting — is the flip side. Elevated oil prices strengthen the economic case for energy storage in markets where power prices are linked to oil-indexed gas, which includes large portions of Asia and Europe. When spot gas prices spike, the spread between peak and off-peak electricity prices widens, and storage projects that might have looked marginal on a spreadsheet suddenly look compelling.
This is the kind of dynamic that sophisticated energy investors track closely. Geopolitical disruption typically reads as risk — and it is — but for battery storage specifically, sustained high fossil fuel prices have historically accelerated rather than slowed deployment. The Strait of Hormuz situation could end up as a net positive for storage investment timelines in Asia-Pacific and European markets if it persists long enough to shift regulatory attention toward energy security solutions.
China and the US: The Markets That Set the Pace
The US and China together accounted for roughly 70% of all 2025 storage deployments, a level of concentration that reflects both the maturity of those markets and the significant policy infrastructure each has built around storage.
China installed 61.1 GW/173.1 GWh in 2025 — a 54% year-over-year increase that reflects mandatory storage attachment requirements for new renewable projects across multiple provinces, combined with aggressive manufacturing scale and falling domestic battery prices. BNEF projects China's cumulative capacity reaching 1.3 TW/5.2 TWh by 2036. That figure is almost incomprehensibly large. For reference, the entire current US power generation fleet sits at roughly 1.2 TW of capacity across all sources.
The US added 18 GW/54.6 GWh in 2025, a 46% increase from 2024. The US market is structurally different from China's — more fragmented, more dependent on wholesale market structures and interconnection queues, and currently navigating significant federal policy uncertainty. BNEF's forecast of 334 GW/1.3 TWh cumulative US capacity by 2036 is bullish but hinges on domestic battery manufacturing scaling effectively, a process that was already underway before the current policy environment complicated the picture.
The more overlooked story is Sub-Saharan Africa, where annual installations quadrupled year-over-year from 2024, reaching 4.3 GW/8.8 GWh in 2025. That growth rate is coming off a smaller base, but the trajectory signals genuine market formation — not just pilot projects and donor-funded installations, but commercially structured deployments responding to real grid economics.
The Sodium-Ion Moment
Battery storage investment conversations have long been dominated by lithium iron phosphate chemistry. That's still where the volume is. But the recent CATL and HyperStrong announcement of a 60 GWh multi-year sodium-ion battery agreement is worth marking as a meaningful inflection point.
Sodium-ion batteries don't require lithium, cobalt, or nickel — elements that carry supply chain concentration risk and price volatility. They perform better at temperature extremes and don't carry the same thermal runaway risk profile as some other chemistries. The trade-off has historically been lower energy density, but for grid-scale stationary applications where you're not constrained by weight or volume the way an EV is, that trade-off matters less.
A 60 GWh multi-year offtake agreement isn't a technology demonstration — it's commercial-scale validation. BNEF analyst Isshu Kikuma flagged it specifically as evidence of sodium-ion's "emergence at scale," which is notably different language than the cautious framing these announcements typically receive.
This doesn't mean lithium-based chemistries are being displaced anytime soon. But for infrastructure investors with decade-long time horizons, the emergence of a credible alternative chemistry reduces long-term supply chain risk for the entire storage sector. That's an underappreciated positive.
Where the Opportunities Actually Are
The headline growth numbers point toward the obvious markets — China, the US, Europe. But the real opportunity for infrastructure investors and developers lies in identifying where supply and demand for storage services are most misaligned.
Markets with high renewable penetration, oil-linked power pricing, and underdeveloped grid infrastructure represent the convergence point where storage economics are strongest and competition is thinnest. Several Southeast Asian and African markets fit that profile. The quadrupling of Sub-Saharan African deployments in a single year suggests developers are already identifying this.
Risk assessment in these markets can't rely on the same frameworks used in the US or Germany. Revenue certainty comes from different structures — offtake agreements, capacity payments, hybrid project configurations — and political risk profiles require more granular analysis. But the returns available in emerging storage markets increasingly justify that additional diligence work.
The next decade won't be won by the markets that got to storage first. It'll be won by the developers and capital allocators who correctly identify which emerging markets are one policy decision or one grid emergency away from rapid deployment acceleration — and position themselves ahead of that moment.
By 2036, 2.9 terawatts of energy storage will be sitting on grids around the world. The projects that will make up that number are being financed, permitted, and contracted right now.
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