Serbia will begin construction in 2026 on a 1 gigawatt solar project paired with energy storage, the country's mining and energy minister said. The initiative follows complex preparatory work, according to RenewablesNow. This development aligns with surging global energy storage trends, as Europe approaches 100 gigawatts of cumulative deployments and China achieved a record 200 gigawatt-hours of new installations in 2025.
The project underscores Serbia's push into renewables amid a broader international race to expand storage capacity. Officials cited preparatory complexities for the timeline, with details on storage capacity and technology still unspecified. As clean energy demands grow, such initiatives highlight the role of storage in stabilizing grids and integrating variable sources like solar and wind.
Europe's Drive Toward Storage Milestones
Europe had deployed 99.3 gigawatts of energy storage by early November 2025, according to LCP Delta and Energy Storage Europe. Analysts project the continent will hit 100 gigawatts by late 2025 or early 2026, marking it as Europe's fastest-growing clean energy technology, Energy-Storage.News reported.
Serbia's 1 gigawatt solar farm with integrated storage fits this momentum, with construction set to start next year. A German energy firm, Uniper, signed a conditional agreement with CMBlu Energy for 5 gigawatt-hours of organic solid flow batteries, with deliveries beginning in 2027, according to Energy-Storage.News and ESS News. This deal emphasizes advances in long-duration storage.
Key stats include 99.3 gigawatts deployed as of November 2025, with the 100 gigawatt milestone expected by early 2026. The technology mix encompasses grid-scale batteries and distributed systems, supporting broader renewables integration.
China's Record Growth and U.S. Innovations
China added a record 200 gigawatt-hours of new energy storage in 2025, pushing cumulative capacity to 144.7 gigawatts by December—a 85% increase from the prior year, Energy-Storage.News reported. Lithium-ion batteries dominated these deployments, solidifying China's lead in volume.
In the U.S., Berkshire Hathaway Energy Renewables activated a 75 megawatt/150 megawatt-hour battery system in Mont. on Feb. 3, 2026. Known as the Glacier project, it enhances grid stability, according to Energy-Storage.News. Tesla achieved a battery storage deployment record in the fourth quarter of 2025, despite sluggish electric vehicle sales, Utility Dive reported. CEO Elon Musk predicted "very high growth" for the sector, stating on Feb. 3, 2026: "Energy will have very high growth for as far into the future as we can imagine."
The U.S. Department of Energy announced $25 million for 11 battery manufacturing projects in December 2024 to boost scalability and reduce costs, Energy.gov stated. The agency also launched a 93,000-square-foot Grid Storage Launchpad facility in August 2024, focusing on long-duration technologies.
- China's 2025 highlights: 200 gigawatt-hours of new deployments; 144.7 gigawatts cumulative.
- U.S. projects: Montana battery system energized Feb. 3, 2026; DOE's $25 million investment in manufacturing.
Shift to Long-Duration Storage Alternatives
Global trends indicate a pivot beyond lithium-ion batteries, with non-lithium options like flow batteries gaining traction for long-duration needs, according to Energy-Storage.News and Recharge News. Tesla leads in lithium rankings, but Energy Dome tops non-lithium suppliers.
CMBlu's SolidFlow organic batteries appear in the Uniper deal, while ESS Inc. promotes iron flow batteries for extended storage. Rondo Energy's superheated bricks attracted investments from Microsoft and Saudi Aramco, Recharge News reported. This shift mitigates lithium supply risks and aids renewables integration.
Data centers are fueling demand, with AI-related needs projected to rise 165% by 2030, per ESS Inc. Merchant revenue models are evolving, blending front-of-the-meter and behind-the-meter investments for better returns, Energy-Storage.News noted. These developments enhance grid reliability amid solar and wind variability, supporting COP28 goals to triple renewables.
Skeptical Perspectives on Storage Hype
The global storage surge impresses, but skepticism surrounds the hype on non-lithium tech. Flow batteries like CMBlu's promise for long-duration needs, yet their scalability trails proven lithium-ion systems—Tesla's fourth-quarter 2025 record underscores that point.
Serbia's project risks delays without defined storage specs, and Europe's 100 gigawatt milestone may seem inflated by including distributed systems that lack consistent grid-level impact. China leads in volume, but without stricter quality controls, cheap deployments could face more failures.
Investors should favor lithium giants over unproven long-duration energy storage upstarts. Real breakthroughs likely stem from U.S. Department of Energy-backed manufacturing, not scattered European deals.
Horizons Ahead in Energy Storage
Construction on Serbia's solar-storage project in 2026 could elevate Balkan renewables, while Europe nears its 100 gigawatt mark soon after. China sustains momentum through lithium scaling, and U.S. initiatives like DOE funding target next-generation batteries.
Tesla anticipates continued expansion, with emerging long-duration deals like Uniper-CMBlu signaling diversification. Analysts foresee storage enabling data center growth and smoother energy transitions.
Grid-scale batteries will increasingly integrate renewables, sources said, with no major setbacks reported despite varying regional policies. This trajectory positions storage as a cornerstone for global clean energy goals.