Battery Storage Beats Gas Turbines on Cost in All 43 Markets

A clean sweep for four-hour batteries

Wood Mackenzie's latest global analysis of levelized cost of electricity (LCOE) finds that four-hour battery storage is now cheaper than open-cycle gas turbines in every one of the 43 markets where the firm modeled both technologies 12. The research group frames this as part of a broader pattern in which advancing technology and shifting market conditions keep pushing the costs of different generation types further apart 1.

The headline result is notable for its breadth. A cost advantage in a few sunny, battery-friendly markets would be one thing. An advantage across every market where the head-to-head comparison was run suggests that batteries are no longer a niche alternative for gas peaking plants, but the default low-cost option.

Why gas peakers are losing ground

Open-cycle gas turbines have long been the standard tool for meeting short spikes in demand. They are relatively simple plants that can ramp quickly when the grid is under strain. That role overlaps closely with what a four-hour battery does: absorb cheaper or surplus power and release it during peak hours.

Wood Mackenzie principal analyst Ahmed Jameel Abdullah described the economic shift as "decisive and widening," pointing to forces working against gas from both directions 2. He said shortages of gas turbines and increasingly volatile fuel prices are raising the cost of peaking power, while growth in battery manufacturing continues to drive storage costs down 2.

This two-sided pressure matters. Battery cost declines alone might take years to overtake an incumbent technology. When the incumbent's costs are also rising, through supply bottlenecks on turbine equipment and exposure to fuel price swings, the crossover can happen faster and become more entrenched.

Regional snapshots

The report's regional detail shows how differently the transition is unfolding.

Middle East and Africa: Utility-scale solar is already the cheapest source in the region at $37/MWh 2. Four-hour storage is forecast to fall another 33% to $80/MWh by 2035, at which point it would undercut gas peaking on cost in every gas market in the region 2. Pairing very cheap solar with increasingly affordable storage is the combination that most directly threatens gas's role in evening and peak supply.

China: China remains the global benchmark for storage costs, sitting more than 55% below the average for the rest of Asia Pacific 2. Wood Mackenzie presents this gap as evidence that manufacturing scale is reshaping the global cost map 2. In practice, a market's proximity to, and access to, high-volume battery production may matter as much as its solar resource or grid design.

Latin America: Grid-scale storage is growing quickly, supported by storage mandates attached to renewable energy projects and by standalone procurement aimed at grid stability 2. Storage LCOE in the region is forecast to fall 42% by 2060 as deployment grows and regulatory frameworks mature 2. The longer time horizon suggests that policy design, not just hardware prices, is a key variable there.

Reading the numbers carefully

Some framing of the findings describes batteries as cheaper to install than gas turbines. LCOE is a broader measure than upfront installation cost. It spreads capital, operating and fuel costs over a project's expected output. That distinction works in batteries' favor in this case, because fuel price exposure is one of the costs weighing on gas peakers. But readers should treat this as a lifetime-cost comparison, not a simple price tag.

It is also worth remembering that a four-hour battery and a gas turbine are not perfect substitutes. A turbine can run as long as it has fuel, while a battery's output is limited by its duration. For daily peaks, four hours often covers the need. For extended shortfalls, such as multi-day weather events, grid planners will still weigh other resources. The study's comparison is most meaningful for the peaking role specifically.

What it means

The overall direction is clear. When a technology wins on cost in every modeled market and its costs are still falling, the question for utilities and investors is less about whether storage replaces new gas peaking capacity and more about how fast procurement rules, interconnection queues and supply chains can keep up.

The regional spread also offers a warning. China's cost lead shows that the benefits of the storage boom are not evenly distributed. Markets that lack scale, supportive mandates or access to low-cost manufacturing may see the crossover arrive later and deliver less. Based on Wood Mackenzie's figures, the economic case for gas peakers is eroding globally. The remaining obstacles appear to be mostly about policy and logistics rather than price.