EVE Energy 628 Ah Ultra-Large Grid-Scale Battery

Abstract

Chinese cell maker EVE Energy connected the world's first 628 Ah ultra-large LFP grid-scale battery to the grid on February 12, 2026, in the 200 MW / 400 MWh Ruite New Energy Lingshou project. The deployment uses 80 of EVE's "Mr. Giant" energy-storage systems and pairs with a 10 GWh strategic agreement. The 628 Ah cell is roughly double the prevailing 300 Ah-class industry-standard cell, and is a concrete grid-storage-hardware milestone in the LFP-dominated stationary market the IEA's 2026 figures describe.

Key Contributions

• World-first 628 Ah grid-scale cell, live Feb 12, 2026 — the largest-capacity LFP cell deployed in operating utility-scale storage at announcement.
• Project: Ruite New Energy Lingshou — 200 MW / 400 MWh, built from 80 "Mr. Giant" energy-storage systems and 40 integrated converter cabins.
• 10 GWh strategic agreement with Guowang Technology accompanies the deployment.
• Mass production began December 2024; cumulative production of the large-format cell now exceeds one million cells — i.e., this is manufactured volume, not a one-off demonstration.
• Roughly 2× the standard cell — the article notes "300 Ah+ products remain the industry standard," placing the 628 Ah cell at about double prevailing capacity.
• EVE completed first "Mr. Giant" shipments to Australia and Europe (Sept 10), indicating export traction.

Results

• Larger-format cells reduce part count, interconnects, and balance-of-system cost per kWh — the same lever (system-level cost) that defines the LFP-dominated stationary market. Fewer, bigger cells is the LFP grid-storage cost-reduction path.
• A million-plus cumulative cells plus a 10 GWh order signals the 628 Ah format has cleared manufacturability and bankability, not just a spec-sheet headline.
• Sits within a broader Chinese race to ever-larger stationary cells: Hithium showcased the first LFP cell past 1,000 Ah, and BYD released a 14.5 MWh single-unit system using a 2,710 Ah Blade cell — the ultra-large-cell frontier is moving fast.

Limitations

• News-tier source (single outlet, manufacturer-originated figures); independent cycle-life and round-trip-efficiency data for the 628 Ah cell in field operation is not yet public.
• "World's first" applies to the operational 628 Ah grid deployment specifically; larger cells (1,000 Ah+, 2,710 Ah) have been announced by others but in different deployment/format contexts.
• Energy density and round-trip efficiency specs were not quoted at the cell level in this source.

Full Content

EVE Energy's 628 Ah deployment is a hardware data point under the IEA's macro story: the stationary-storage market is LFP-dominated (~90% of deployments) and competes on system-level cost, and the cell-format race is one of the main cost levers. Going from ~300 Ah to 628 Ah roughly halves the cell count for a given energy, cutting interconnects, busbars, enclosure complexity, and assembly labor — all balance-of-system cost that the RSC lifecycle work elsewhere in this KB shows dominates the stationary footprint.

The competitive context matters: EVE's 628 Ah live deployment is the operational milestone, but Hithium (first 1,000 Ah+ LFP cell) and BYD (14.5 MWh unit on a 2,710 Ah Blade cell) show the ultra-large-cell frontier accelerating in 2025-2026. For grid storage, "bigger cell" is the LFP analogue to the EV world's "faster charge" race — the axis along which Chinese makers are compounding their stationary-storage cost advantage just as Western entrants (GM/Peak Energy on sodium-ion, LG/GM's Ultium LFP pivot) try to establish a domestic foothold.

Source: ESS News — World's first 628Ah grid-scale battery enters operation (Feb 12, 2026); companion pv magazine coverage (504 on automated fetch — figures corroborated via ESS News).