Iron-Air Grid Batteries Go Commercial
Word Count: 201
Form Energy's 100-hour duration iron-air batteries (2024) transform renewable storage economics:
Reversible rusting: Fe ↔ FeO₂ cycles
Water-based electrolyte: Non-flammable
Earth-abundant materials: Iron/air/O₂
Minnesota's 1MW/150MWh pilot plant (Xcel Energy) shows:
▶️ $20/kWh system cost (1/5 lithium-ion)
▶️ 20-year lifespan with zero cobalt/lithium
▶️ 1.5¢/kWh levelized storage cost
2025 Expansion:
10 projects >1GWh across U.S. grids
India/UK joint ventures underway
Targets $15/kWh via automated manufacturing
Zero Carbon，vape battery，battery cell，v battery
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