Form ships its first commercial iron-air batteries to Great River Energy

Form Energy/Iron-air multi-day battery

Form Energy began installing its first commercial iron-air batteries at Great River Energy's storage project in Minnesota, which can discharge for about 100 hours. Form had made about 100,000 electrodes at its West Virginia factory in 2025 and had over 200 MW of batteries under contract.

• 100-hour discharge duration batteries deployed to Great River Energy in Minnesota.
• Full operational status expected in 2026.
• Form produced ~100,000 electrodes in 2025.
• Over 200 MW of batteries currently under contract.