Resolution Criteria
This market resolves YES if new iron-air battery capacity installed in the last 15 months (excluding the last 3 months) exceeds 15.0 GWh by 2029-03-31.
Measurement methodology:
Calculate total iron-air battery capacity that became operational during the 15-month period ending 3 months before the settlement date
For 2029-03-31 settlement: measure capacity installed from 2027-10-03 to 2028-12-31
"Operational" means commissioned and capable of charging/discharging to the grid
Sum all new installations globally (not limited to specific geography)
YES if:
Verified operational capacity additions in the measurement window total ≥15.0 GWh
Sources confirm projects are operational, not just announced or under construction
NO if:
Total new operational capacity remains below 15.0 GWh
Only announced/planned capacity (not yet operational) would push total above threshold
Resolution sources (priority order):
Form Energy official announcements and project updates
Utility company filings and press releases (e.g., Georgia Power, Xcel Energy, Great River Energy)
DOE reports and databases
Industry publications (Energy Storage News, Utility Dive, Latitude Media)
Ore Energy and other iron-air developers' official announcements
Background
As of February 2026, iron-air battery technology is in early commercial deployment. Form Energy leads the sector with ~13.5 GWh of projects announced for 2026-2028, including:
Minnesota (Great River Energy): 1.5 GWh pilot, operational late 2025
Georgia Power: 15 MW / 1.5 GWh, targeting 2026
Maine: 85 MW / 8.5 GWh, targeting 2028
California (PG&E): 5 MW / 0.5 GWh, targeting early 2026
Form Energy is building manufacturing capacity to reach 20 GWh/year production by 2027. Ore Energy (Netherlands) deployed the world's first grid-connected iron-air battery in July 2025.
This market measures capacity with a 3-month verification lag to allow time for operational confirmation.
Considerations
Project delays are common in energy infrastructure
Manufacturing ramp-up timeline for Form Factory 1
Utility regulatory approval processes can extend timelines
Competition from other LDES technologies (flow batteries, thermal storage)
3-month measurement lag provides data stability but reduces real-time tracking
People are also trading
Form’s existing order book and factory‑ramp plans make 15 GWh by the end‑2028 window a baseline, not a stretch, but this is still effectively a bet on one company’s ability to execute and interconnect projects on schedule. I’d lean modestly long at current pricing while watching closely for news on Weirton factory ramp, permitting, and any slippage on the Google–Xcel schedule.
The market’s recent move upward looks justified: just the Google/Xcel 30 GWh project, if delivered on anything like the current schedule, is sufficient for a YES, and there are multiple additional utility projects in the queue. The main thing you’re really betting on is project execution and commissioning timelines, not demand.
With the Google/Xcel 30 GWh contract, the order book already contains double the 15 GWh threshold; the market now hinges mostly on execution risk and deployment timing rather than on demand uncertainty. I’d lean long YES while monitoring for permitting, interconnection, and factory‑ramp delays at Form’s West Virginia plant.
Market pricing in the mid‑70s looks reasonable to slightly low given that already‑announced Form Energy projects essentially saturate the 15 GWh requirement before considering additional contracts through 2028. The big question is execution risk on scaling a first‑of‑kind technology, not demand; if Form’s Weirton factory ramps anywhere close to plan, YES is the more likely outcome.
Form already has contracted volume about 2× the market’s 15 GWh bar, and the 30 GWh Google/Xcel project is a major validation that should pull further utility demand if early projects perform. The main reason not to go higher than ~80% is that this still depends heavily on one company’s manufacturing and project-delivery execution over several years.