The world’s largest battery energy storage projects are entering a new phase in 2026 as utilities and renewable-energy developers deploy multi-GWh systems to strengthen grids, integrate solar and wind, and deliver electricity during peak demand.
Global battery storage deployment reached 108 GW in 2025, up 40 percent, including about 87 GW of utility-scale additions. Lithium iron phosphate (LFP) represented approximately 90 percent of deployments, reflecting its competitive cost, safety and cycle life.
The expansion is closely connected with the accelerating deployment of solar and battery storage projects as developers increasingly seek to turn intermittent renewable generation into more predictable power.
The biggest projects also show a shift toward four-hour batteries, solar-plus-storage and grid-forming systems, while storage is increasingly becoming critical grid infrastructure rather than an optional addition to renewable projects.
1. Abu Dhabi Gigascale Solar and Battery Project, UAE — 19 GWh
Masdar and Emirates Water and Electricity Company are developing one of the world’s largest solar-plus-storage projects, combining 5.2 GW of solar PV with 19 GWh of battery storage.
The project reached financial close in July 2026 with $6.1 billion investment, supported by $5.1 billion financing from 13 banks and $1 billion of Masdar equity.
Unlike conventional batteries focused mainly on evening peaks, the system is designed to deliver 1 GW of continuous clean electricity 24/7.
BYD secured an 11.275 GWh battery supply contract, while CATL had previously been identified as a preferred supplier.
2. Edwards & Sanborn, US — 3,287 MWh
California’s Edwards & Sanborn combines 864 MWdc of solar with approximately 3,287 MWh of battery storage, making it one of the largest completed solar-plus-storage installations in the US.
Its batteries capture daytime solar electricity and make it available later, demonstrating how hybrid projects can improve renewable-energy utilization and grid flexibility.
3. Supernode BESS, Australia — 3,073 MWh
Quinbrook Infrastructure Partners’ Queensland Supernode is emerging as one of Australia’s largest battery campuses.
Stages one and two provide 520 MW/1,858 MWh, while the first three stages are expected to reach approximately 780 MW/3,073 MWh. Quinbrook has committed A$1.4 billion to these three stages.
CATL supplies the battery systems and supports operations and maintenance. Supernode is strategically positioned around future high-load digital infrastructure, linking battery investment with growing data-center electricity demand.
4. Adani Green Khavda BESS, India — 3.37 GWh
Adani Green Energy commissioned 3.37 GWh of battery storage at Khavda in Gujarat during 2026, including 1.37 GWh added in March.
The company describes Khavda as the world’s largest single-location BESS and plans to install more than 10 GWh in FY2027, before expanding storage capacity to 50 GWh over the following five years.
This expansion reinforces the growing importance of battery energy storage in India as solar and wind capacity expands and utilities require more flexible resources to manage evening demand and renewable intermittency.
5. Nova Power Bank, US — 2,720 MWh
California’s Nova Power Bank provides approximately 680 MW/2,720 MWh, giving it a four-hour storage duration.
Nova demonstrates the commercial evolution of standalone batteries, which can earn revenue through energy arbitrage, capacity and grid-balancing services while shifting low-cost daytime electricity into higher-value evening periods.
6. Collie Battery, Australia — 2,240 MWh
Neoen’s Collie Battery in Western Australia provides 560 MW/2,240 MWh.
Stage 1 comprises 219 MW/877 MWh, while Stage 2 contributes another 341 MW/1,363 MWh. Tesla supplies the battery technology.
Its four-hour duration helps Western Australia accommodate increasing renewable penetration while providing dispatchable capacity and grid reliability.
7. Waratah Super Battery, Australia — 1,680 MWh
Akaysha Energy’s Waratah Super Battery has a physical rating of 850 MW/1,680 MWh.
As of June 2026, it was operating at 700 MW while providing its complete 1,680 MWh energy capacity.
Waratah is unusual because its core role includes protecting the New South Wales transmission system through the System Integrity Protection Scheme, demonstrating how batteries can function as transmission infrastructure.
8. Terra Solar, Philippines — Around 3.3 GWh
The first phase of the Philippines’ Terra Solar development incorporates approximately 825 MW of battery power and 3.3 GWh of storage.
The batteries will firm large-scale solar generation and shift renewable electricity toward periods of higher demand, making Terra Solar an important benchmark for Southeast Asia’s emerging solar-plus-storage market.
9. Bisha BESS, Saudi Arabia — 2 GWh
Saudi Arabia’s Bisha project provides 500 MW/2 GWh and incorporates grid-forming technology.
NR Electric supplied the integrated solution, which demonstrated a 500 MW black-start capability in February 2026.
That capability means batteries can assist in restoring electricity networks following major outages without waiting for conventional generating units to restart.
10. Gemini Solar-plus-Storage, US — 1,416 MWh
Nevada’s Gemini project combines approximately 690 MWac of solar with 380 MW/1,416 MWh of battery storage supplied by CATL.
Operating since 2024, Gemini attracted a $760 million refinancing in 2026, demonstrating increasing institutional investor interest in operating solar-plus-storage assets once construction risks have declined.
11. Eland Solar-plus-Storage, US — 1,200 MWh
Arevon’s Eland development combines 758 MWdc of solar with 300 MW/1,200 MWh of storage.
The development represents more than $2 billion of investment and uses Tesla Megapacks. Its four-hour battery captures excess daytime generation for delivery after sunset.
12. Nighthawk Energy Storage, US — 1,200 MWh
Arevon’s Nighthawk provides 300 MW/1,200 MWh using LFP batteries.
Its $920 million financing package includes $482 million of debt, $169 million of preferred equity and $268 million of tax-credit transfer proceeds.
The financing demonstrates how standalone storage is evolving into an institutional infrastructure asset class.
13. Crimson Storage, US — 1,400 MWh
California’s Crimson Storage provides 350 MW/1,400 MWh.
Long-term agreements with Southern California Edison and Pacific Gas and Electric provide contracted revenue, while CSI Energy Storage supplied the integrated battery system and related services.
14. Desert Peak, US — 1,300 MWh
Arevon’s Desert Peak project in Nevada provides approximately 325 MW/1,300 MWh.
Its four-hour configuration can shift electricity from periods of abundant low-cost generation into evening peaks — increasingly valuable in western US markets with rapidly growing solar penetration.
15. Burgas BESS, Bulgaria — 602 MWh
CATL and Solarpro commissioned the 602 MWh Burgas BESS in May 2026, making it Bulgaria’s largest operational battery and one of Eastern Europe’s largest.
CATL supplied the storage technology and Solarpro handled EPC and integration. The companies subsequently signed a 2 GWh sodium-ion storage agreement, pointing toward diversification beyond lithium-ion technology.
16. Victorian Big Battery, Australia — 450 MWh
Neoen’s Victorian Big Battery provides 300 MW/450 MWh, using Tesla technology.
Although smaller than newer multi-GWh projects, it remains significant for rapid-response grid services and forms part of Neoen’s wider Australian storage portfolio alongside Hornsdale and Collie.
17. BEST Solar-plus-Storage, India — 440 MWh
Mumbai’s BEST is procuring 220 MW of solar generation supported by 110 MW/440 MWh of battery storage.
The four-hour system demonstrates how Indian distribution utilities can combine renewable procurement with storage to manage evening urban electricity demand.
18. Peregrine Energy Storage, US — 400 MWh
Arevon’s California Peregrine project provides 200 MW/400 MWh and entered commercial operation in June 2025.
Investment is approximately $300 million, while construction supported more than 90 full-time-equivalent workers at peak.
19. Hornsdale Power Reserve, Australia — 193.5 MWh
Neoen’s Hornsdale provides 150 MW/193.5 MWh.
Despite being much smaller than the newest projects, Hornsdale remains one of the industry’s most influential batteries because it demonstrated the commercial potential of rapid frequency response and other grid services.
20. Jingyi Chagan Hada BESS, China
The Jingyi Chagan Hada development in Inner Mongolia is among China’s notable multi-GWh storage projects.
Its strategic importance comes from China’s broader push to combine enormous solar and wind bases with batteries to reduce renewable curtailment, manage intermittency and strengthen grid flexibility.
Battery Storage Investment and Costs Fall
Global energy-storage cell shipments reached approximately 612 GWh in 2025, nearly double the previous year. CATL alone shipped around 121 GWh, while storage represented approximately 15 percent of its revenue.
Falling battery prices are supporting the investment boom. Lithium-ion battery pack prices dropped about 20 percent in 2024 and another 8 percent in 2025.
BloombergNEF reported that the benchmark cost of a four-hour battery project fell 27 percent year over year to $78/MWh in 2025.
These falling costs are important for the economics of renewable energy investment because batteries can increase the usable value of solar and wind generation rather than forcing developers to sell electricity primarily when renewable output is abundant.
Battery Storage Moves From Renewable Support to Grid Infrastructure
The 2026 project pipeline reveals an important structural change. Batteries are no longer being deployed only to store excess solar and wind power.
Projects such as Waratah and Bisha show that batteries can provide transmission support, black start and system stability. Nova, Crimson, Desert Peak and Nighthawk demonstrate the growing commercial case for standalone four-hour storage, while Abu Dhabi, Edwards & Sanborn, Gemini, Eland and Terra Solar show how storage is transforming renewable projects into more dispatchable power assets.
The next investment wave will increasingly be driven by renewable-energy integration, grid congestion, data centers, AI infrastructure and rising demand for reliable electricity.
That trend also means the global energy storage market is becoming increasingly important to utilities, renewable developers, infrastructure investors and battery manufacturers.
For investors and developers, the critical measures are therefore shifting from battery capacity alone toward storage duration, cost per MWh, contracted revenue, grid value, cycle life and the ability to deliver electricity when the power system needs it most.
SHAFANA FAZAL
