# Form Energy

**Canonical:** https://apis.io/providers/form-energy/  
**Website:** https://formenergy.com  
**APIs profiled:** 0

Form Energy is a long-duration energy storage company headquartered in Somerville, Massachusetts and Weirton, West Virginia. Its flagship product is an iron-air battery designed to store electricity for up to 100 hours, intended to enable utilities and grid operators to firm renewable generation across multi-day weather events, replace aging fossil-fueled peakers, and defer transmission and distribution upgrades. The company manufactures its battery at Form Factory 1, a 550,000-square-foot facility built on the former Weirton Steel mill site that employs roughly 400 people. Form Energy also publishes Formware, a grid-modeling software suite used by utilities to plan resource portfolios that include multi-day storage. Notable customers and partners include Georgia Power, Xcel Energy, Great River Energy, Dominion Energy, PG&E, New York Power Authority, and Crusoe Energy (a 12 GWh agreement to firm power for AI data centers). Form Energy does not currently publish a public developer API or SDK; engagement is through utility sales, partnership, and policy channels.

## Kin Score — 3.8 / 100 (minimal)

Scored 2026-08-21 under rubric 0.12.0. Trend: flat (+0.0 from 3.8).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 2.4 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

Regulatory layer — **Energy & Utilities**: 8.1 (matched via tags).

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (1)

- **Form Energy Domain Security** — TLSv1.3 · DMARC

## Tags

Energy Storage, Long Duration Energy Storage, Iron-Air Battery, Battery Storage, Grid Reliability, Renewable Energy, Utility Scale, Multi-Day Storage, Grid Modeling, Clean Energy, Manufacturing, West Virginia

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/form-energy/). Scores are computed from the provider's own public artifacts under a published rubric.