Form Energy

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.

Form Energy is profiled on the APIs.io network. Tagged areas include Energy Storage, Long Duration Energy Storage, Iron-Air Battery, Battery Storage, and Grid Reliability.

Form Energy’s developer surface includes YouTube channel, engineering blog, and 19 more developer resources.

🌐 Visit website 📡 Source on GitHub

3.8/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

0 APIs

Energy Storage Long Duration Energy StorageIron-Air BatteryBattery StorageGrid ReliabilityRenewable Energy Utility ScaleMulti-Day StorageGrid ModelingClean Energy ManufacturingWest Virginia

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 3.8/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 0.4 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.3 / 9

Regulatory Posture 1.2 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Energy & Utilities regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/form-energy: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Form Energy Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Learn 1

Tutorials, courses, talks, and written guidance

YouTube

YouTube

Operate 1

Status, limits, changes, and where to get help

Contact

Contact

Company 12

The organization behind the API

Website

About

Investors

Newsroom

Careers

OpenJobs

PressEmail

LinkedIn

Twitter

Facebook

Instagram

Blog

Scroll for all 12

Other 6

Properties that don't map to a standard resource type

Technology

Technology

BatteryTechnology

BatteryTechnology

GridModelingSoftware

GridModelingSoftware

Factory

Factory

Team

Team

Email

Source (apis.yml)

aid: form-energy
name: Form Energy
description: 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.
type: Index
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
position: Producing
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/form-energy.png
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
url: https://raw.githubusercontent.com/api-evangelist/form-energy/refs/heads/main/apis.yml
created: '2026-05-23'
modified: '2026-05-23'
specificationVersion: '0.23'
apis: []
common:
- type: DomainSecurity
  url: security/form-energy-domain-security.yml
- type: Website
  url: https://formenergy.com
- type: Technology
  url: https://formenergy.com/technology/
- type: BatteryTechnology
  url: https://formenergy.com/technology/battery-technology/
- type: GridModelingSoftware
  url: https://formenergy.com/technology/grid-modeling-software/
- type: Factory
  url: https://formenergy.com/form-factory-1/
- type: About
  url: https://formenergy.com/about/
- type: Team
  url: https://formenergy.com/about/#team
- type: Investors
  url: https://formenergy.com/about/#investors
- type: Newsroom
  url: https://formenergy.com/newsroom/
- type: Careers
  url: https://formenergy.com/careers/
- type: OpenJobs
  url: https://formenergy.com/open-jobs/
- type: Contact
  url: https://formenergy.com/contact/
- type: Email
  url: mailto:info@formenergy.com
- type: PressEmail
  url: mailto:pr@formenergy.com
- type: LinkedIn
  url: https://www.linkedin.com/company/form-energy/
- type: Twitter
  url: https://twitter.com/FormEnergyInc
- type: YouTube
  url: https://www.youtube.com/channel/UCPl-u8RIqIFTwp0Ot4bITyQ
- type: Facebook
  url: https://www.facebook.com/formenergy
- type: Instagram
  url: https://www.instagram.com/formenergy
- url: https://formenergy.com/feed/
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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