For over a century, the lead-acid battery market has been defined by one dominant application: the starting-lighting-ignition (SLI) battery in cars and trucks. That remains the single largest demand channel for refined lead, accounting for roughly half of all lead consumption. But a quieter evolution is underway in the stationary storage segment — and it is beginning to register as a meaningful supplementary demand driver.
The stationary lead-acid battery storage market in the United States alone is valued at an estimated $1.8–2.2 billion at the system level in 2026, with a compound annual growth rate of 3–5% projected through 2035. Globally, the stationary lead-acid battery market is forecast to grow at approximately 7% CAGR, driven by telecom infrastructure expansion, data centre buildout, and increasing demand for uninterruptible power supplies (UPS) across industrial and commercial facilities.
Stationary storage market snapshot
US stationary lead-acid market (2026): $1.8–2.2 billion system-level
Global stationary lead-acid CAGR (2026–2035): 3–5% (US); ~7% (global)
Global lead-acid battery market (2026): $56.12 billion
Projected contribution by 2030: Over $7 billion from stationary segments
SLI battery share (2026): ~48.8% of total lead-acid market
Industrial segment share (2026): ~51.12% of total lead-acid market
Lead-acid vs lithium-ion: complementary roles in stationary storage
While lithium-ion batteries dominate headlines for grid-scale storage and electric vehicles, lead-acid remains the technology of choice for a distinct set of stationary applications where upfront capital cost, intrinsic safety (non-flammable chemistry), proven reliability over decades, and high recyclability are paramount.
| Application | Lead-acid suitability | Growth driver |
|---|---|---|
| Telecom tower backup | High — cost-effective, reliable | Rural 5G expansion, off-grid sites |
| Data centre UPS | High — proven reliability | AI infrastructure buildout |
| Off-grid renewable storage | Moderate — cost wins for small systems | Microgrid and solar+storage adoption |
| Grid-scale energy storage | Low — lithium-ion dominates | Utility decarbonisation targets |
| Industrial UPS / backup | High — 51% of total lead-acid market | Manufacturing, healthcare, critical infra |
Data centres have emerged as a particularly interesting demand vector. The buildout of artificial intelligence (AI) computing infrastructure is driving a surge in data centre construction, and every data centre requires backup power. Lead-acid remains the incumbent technology for UPS systems, with lithium-ion only gradually gaining share in new installations. The Business Research Company projects that stationary lead-acid segments collectively will contribute over $7 billion in market value by 2030, driven by telecom, data centre, and industrial infrastructure investments.
Not yet a game-changer for lead demand — but growing
Despite this growth, stationary storage remains a relatively small piece of the overall lead demand picture. The ILZSG projects global refined lead demand at 13.37 million tonnes in 2026, with SLI batteries still accounting for the lion's share. Stationary lead-acid applications — telecom backup, UPS systems, and off-grid storage — probably account for no more than 10–15% of total lead consumption, a share that is growing slowly but not fast enough to meaningfully alter the supply-demand balance.
Part of the reason is that the overall energy storage boom is overwhelmingly lithium-ion. Global battery energy storage installations are expected to reach 353.4 GWh in 2026, but the vast majority of this is lithium-based. Lead-acid's share of new stationary storage capacity additions has been declining as lithium iron phosphate (LFP) prices fall, though lead-acid remains deeply entrenched in the replacement market and in cost-sensitive applications.
Ford Energy and the push into stationary storage
The stationary storage theme gained a notable endorsement in May 2026 when Ford Motor Company launched Ford Energy, a subsidiary focused on stationary battery storage. The venture quickly announced a five-year framework agreement with EDF Power Solutions North America, with the potential for up to 4 GWh of annual offtake from 2028. While Ford Energy's initial focus appears to be on lithium-based systems, the entry of a major automotive OEM into stationary storage underscores the sector's perceived growth potential — and could eventually create new second-life or recycling-linked lead demand channels.
Outlook: steady growth, no step-change
Stationary storage is a genuine growth story for lead, but it is a gradual one. The US stationary lead-acid battery storage market is forecast to grow at a CAGR of 3–5% from 2026 to 2035, reaching an estimated $2.5–3.2 billion by 2035. Globally, the stationary lead-acid market is seeing steady tailwinds from telecom infrastructure expansion in emerging markets, data centre buildout in developed economies, and the electrification of industrial backup power systems.
For now, however, these volumes are not sufficient to absorb the ILZSG's forecast 109,000t surplus or to push LME lead sustainably above the $2,050/t ceiling of the current range. Stationary storage is best understood as a supportive structural factor — one that will matter more in the late 2020s than it does today, but which is nonetheless laying the groundwork for a more diversified lead demand base.