What Iron Edison does

Iron Edison Battery Company, founded in 2010 and based in Denver, Colorado, manufactures and distributes Nickel Iron and Lithium Iron batteries marketed for solar energy storage, alongside complete solar system design services. Its portfolio spans the core Iron Edison battery line, the RE-Volt and Revolt4 sub-lines, and pre-sized or custom Off-Grid DIY Kits, positioning the company as a specialty alternative to mainstream lithium-ion stationary storage. The firm targets three horizontal use cases: residential battery backup and off-grid living, commercial backup and demand-charge management, and utility-scale storage, renewable firming, and microgrid applications.

The underlying technology centers on iron-based chemistries, which the company promotes on the basis of abundant, non-toxic, domestically available materials, lower degradation, and suitability for long-duration stationary storage. Distribution and customer-facing services are delivered in partnership with Terravolt, a solar services firm that provides consultation, one-line diagrams and for-construction plansets, technical support, project management, permit assistance, and Owner's Rep / Expert Witness services across the U.S. Iron Edison operates with 1-10 employees under a founder-led structure led by CEO Maggie Williams and co-founder Brandon Williams.

Revenue mechanics are not publicly disclosed; the company sells hardware (batteries and DIY kits) through the Terravolt-supported channel and monetizes solar design and advisory services around it. The firm is private, has no disclosed funding rounds or institutional investors, and there is no published pricing. Customer concentration, sales mix between residential/commercial/utility, and unit volumes are not disclosed, limiting revenue visibility.

Name

Iron Edison

Legal name

Terravolt

Website

https://ironedison.com

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

1–10 employees

Short description

Iron Edison Battery Company, founded in 2010 in Denver, manufactures Nickel Iron and Lithium Iron batteries for solar energy storage and offers complete solar system design services for residential, commercial, and utility-scale customers, distributed via a core partnership with Terravolt.

Ownership category

akta.pro rank

Product category

Energy Storage Batteries

NAICS

Battery Manufacturing (33591), Electrical Equipment Manufacturing (3353), Other Electrical Equipment and Component Manufacturing (3359)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600), Electrical Industrial Apparatus (3620)

akta.pro primary industry

Battery Modules & Packs (Industrial/Commercial pack assembly) (IMAGAHAB)

akta.pro secondary industries

Battery Raw Materials Mining & Refining (Lithium, Nickel, Cobalt, Manganese, Graphite) (EUAFABAA), UPS Batteries & Energy Storage Modules (HDACAJAE)

Keywords

• Iron-based batteries
• Solar energy storage
• Off-grid battery systems
• Nickel iron batteries
• Lithium iron batteries

Headquarters

HQ city

Denver

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales

Core offering

Iron Edison designs, manufactures, and sells Nickel Iron and Lithium Iron battery products for solar energy storage applications across residential, commercial, and utility-scale installations. The company also offers complete solar system design services and pre-configured off-grid DIY kits for self-installers.

Product overview

Iron Edison is a sub-brand under Terravolt specializing in battery and energy storage solutions for solar and off-grid applications. The brand encompasses multiple product lines including the core Iron Edison batteries, the RE-Volt series, and the Revolt4 variants. Iron Edison products are sold alongside Terravolt's service offerings (consultation, technical support, designs and plansets) and are available as part of Off-Grid DIY Kits for customers who prefer to self-install renewable energy systems.

Differentiator

Problem solved

Functional benefit

Brands

• Iron Edison: A solar battery brand providing battery backup solutions for residential, commercial, and utility-scale solar projects.

Products and services

• Iron Edison Batteries

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

One partnership is on record.

• TerravoltcoreImplementation/ SI/ Consulting PartnerTerravolt, a solar services company, provides technical support, design, and project management services for Iron Edison battery products. Iron Edison is listed as a customer brand on the Terravolt website, indicating a service provider relationship where Terravolt supports customers using Iron Edison products.

Recent moves6 records

Expansion highlights5 records

Direct peers

• ESS Inc. ESS Inc. develops and sells iron-flow batteries for long-duration stationary energy storage, directly overlapping Iron Edison's iron-based chemistry positioning for commercial and utility-scale solar and microgrid projects.
• Form Energy: Form Energy builds iron-air battery systems targeting multi-day, long-duration grid storage, sharing Iron Edison's iron-chemistry thesis for stationary renewable and grid applications.
• SimpliPhi Power: SimpliPhi Power manufactures lithium-iron-phosphate (LiFePO4) batteries for residential, commercial, and off-grid solar storage, competing head-to-head with Iron Edison in the same DIY/off-grid solar buyer segment.
• Surrette / Rolls Battery Engineering: Surrette/Rolls manufactures premium lead-acid and lithium batteries for off-grid, solar, and backup power, sharing Iron Edison's off-grid DIY and renewable energy storage customer base.

Broad incumbents

• EnerSys: EnerSys is a global industrial battery incumbent (including nickel-iron and lithium lines) serving reserve power, motive power, and renewable energy storage, with far broader scale and channel reach than Iron Edison.
• Saft (TotalEnergies): Saft manufactures industrial batteries including nickel-based chemistries for stationary energy storage and is a long-established player in the same end markets Iron Edison addresses.
• Tesla Energy: Tesla's Powerwall and Megapack dominate residential and utility-scale solar-plus-storage, representing the dominant lithium-ion alternative to Iron Edison's iron-based battery offerings.
• Trojan Battery Company: Trojan is a large established manufacturer of deep-cycle lead-acid and lithium batteries widely used in solar, off-grid, and floor-machine applications, serving the same off-grid solar storage buyer that Iron Edison targets.
• Enphase Energy: Enphase sells home solar-plus-storage systems (IQ Batteries), competing with Iron Edison in the residential backup and off-grid solar storage market with a much larger installer network.
• Sonnen (sonnen GmbH): Sonnen produces residential and small-commercial lithium-iron-phosphate energy storage systems, directly overlapping Iron Edison's residential and off-grid solar backup use cases.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights5 records

Customer concentration

• Facebookfacebook.com/TerravoltLLC
• LinkedInlinkedin.com/in/terravoltllc

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Iron Edison