What Peak Energy does

Peak Energy is a U.S.-based, venture-backed energy storage company founded in June 2023 that is industrializing sodium-ion battery technology for grid-scale stationary applications. The company designs, develops, and integrates battery energy storage systems (BESS) serving three primary customer cohorts: investor-owned utilities and independent power producers (IPPs), hyperscaler and AI-first data center operators, and large electricity users. Peak emerged from stealth in October 2023 with a $10M seed round led by Eclipse Ventures and TDK Ventures, closed a $55M Series A in July 2024 led by Xora Innovation (Temasek's early-stage VC arm), and in June 2026 received a strategic equity investment from GM Ventures alongside a co-development partnership with General Motors.

Peak's core product is the GS1.1, marketed as the world's first fully passive grid-scale sodium-ion BESS, paired with proprietary NFPP (sodium iron phosphate pyrophosphate) cell chemistry developed at the company's Broomfield, Colorado Cell Engineering Center. The architecture eliminates active cooling components — fans, chillers, fluid loops, and fire-suppression hardware — that are responsible for approximately 89% of reported BESS safety incidents, enabling 96% DC round-trip efficiency, 99% guaranteed availability under long-term service agreements, 20-year design life with no scheduled maintenance, and up to 200 MWh per acre footprint. The chemistry contains no lithium, cobalt, nickel, or graphite and is anchored on U.S. domestic soda ash, making systems FEOC-compliant and 48E ITC-eligible.

Peak operates a vertically integrated model spanning cell R&D (Broomfield, CO), ESS engineering (Burlingame, CA), a 3.1 MWh pilot at RWE's Eastern Wisconsin lab, a grid-operating commercial deployment at Watkins, CO since August 2025, and a planned 4 GWh/year U.S. factory targeted for Q1 2027 start-of-production. Commercial revenue is generated via multi-year hardware supply agreements (e.g., up to 4.75 GWh / potentially $500M+ with Jupiter Power across 2027-2030; 1.5 GWh with Energy Vault for AI data centers) plus exclusive channel partner rights for international markets (Australia and Japan via Energy Vault) and a co-development/OEM manufacturing relationship with General Motors (exclusive cell manufacturing rights, commercialization targeted after 2028). Pricing is negotiated per engagement and not publicly disclosed.

Name

Peak Energy

Legal name

Peak Energy

Website

https://peakenergy.com

Company type

Private

Founded year

2023

Operating status

Operating

Headcount range

101–250 employees

Short description

Peak Energy is a U.S.-based sodium-ion battery technology company that develops and manufactures fully passive grid-scale energy storage systems. It targets utilities, independent power producers, and AI data center operators through direct enterprise sales and strategic channel partnerships.

Ownership category

akta.pro rank

Product category

Grid-Scale Battery Energy Storage Systems

NAICS

Battery Manufacturing (33591), Electric Power Generation, Transmission and Distribution (2211)

SIC

Motors & Generators (3621), Switchgear & Switchboard Apparatus (3613)

akta.pro primary industry

BESS OEMs (Containerized Systems, Racks, Turnkey Solutions) (EUAFAAAC)

akta.pro secondary industries

BESS Operations, Maintenance & Asset Performance Management (APM) (EUAFAAAG), BESS Financing, Insurance & Contracting (Tax Equity, PPA/Tolling, Warranties) (EUAFAAAI), Utility-Scale BESS EPC & Integration (EUAEAEAA), BESS Grid Interconnection, System Studies & Grid Code Compliance (EUAFAAAJ), Energy Storage & Microgrid Electrical Infrastructure (BESS, Controls) (IMAFAHAE)

Keywords

• Sodium-ion battery storage
• Grid-scale energy storage
• Battery energy storage systems
• Stationary battery storage
• Utility-scale BESS

Headquarters

HQ city

Denver

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Sales - Sodium-Ion BESS Systems: Primary revenue stream from selling GS1.1 sodium-ion battery energy storage systems under multi-year phased supply agreements (e.g., up to 4.75 GWh / ~$500M+ potential contract value with Jupiter Power across 2027-2030, and 1.5 GWh with Energy Vault for AI data centers). Revenue is recognized as systems are delivered and commissioned.
2. Multi-Year Capacity Reservation / Framework Agreements: Long-dated supply and capacity reservation agreements with utilities, IPPs, and channel partners; includes reservation options (e.g., Jupiter Power option for additional 4 GWh in 2028-2030) that lock in future revenue and provide demand visibility for domestic manufacturing scale-up.
3. Channel Partner / Geographic Licensing: Exclusive channel partner rights granted to partners such as Energy Vault for Australia and Japan, generating indirect revenue through partner-led deployment of Peak's sodium-ion battery technology in international markets.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels9 records

Core offering

Peak Energy develops, manufactures, and sells the GS1.1, the world's first fully passive grid-scale sodium-ion battery energy storage system (BESS), built on proprietary sodium iron phosphate pyrophosphate (NFPP) cell chemistry with a patent-pending passive cooling design. The 3.1 MWh-class system is offered in 4h, 6h, and 8h duration models with 96% DC round-trip efficiency, 99% guaranteed availability, and a 20-year design life with no scheduled maintenance, and is sold primarily to U.S. utilities, independent power producers (IPPs), and AI data center operators under multi-year supply agreements.

Product overview

Peak Energy operates an integrated energy storage platform centered on a single core product, the GS1.1 grid-scale sodium-ion energy storage system, supported by its proprietary NFPP sodium-ion cell technology developed at the Broomfield, Colorado Cell Engineering Center. The GS1.1 system is the world's first fully passive grid-scale sodium-ion BESS, engineered to deliver 3.1 MWh of usable energy with zero moving parts, 20-year design life, and 96% DC round-trip efficiency across 4h/6h/8h duration models. Peak's NFPP cells serve as the underlying cell technology that powers the GS1.1 system, with the company's vertically integrated model spanning cell R&D in Colorado, ESS engineering in California, and planned U.S. giga-scale manufacturing beginning in 2027. The platform is drop-in compatible with existing BESS infrastructure, integrating with standard EMS systems and inverters, and is offered as a turnkey solution for utilities, independent power producers (IPPs), and AI data center operators.

Differentiator

Problem solved

Functional benefit

Brands

• GS1.1: Peak Energy's flagship grid-scale sodium-ion battery energy storage system (BESS) — the world's first fully passive megawatt-hour scale BESS designed for 20-year design life with no scheduled maintenance.

Products and services

• GS1.1 Fully Passive Grid-Scale Sodium-Ion BESS Peak Energy's flagship fully passive grid-scale sodium-ion battery energy storage system. Features zero moving parts (no fans, chillers, fluid loops, or fire-suppression hardware), 20 years of no scheduled maintenance, 96% DC round-trip efficiency, and 99% guaranteed availability under LTSA. Available in 4h, 6h, and 8h duration models with 3.1 MWh usable energy capacity, designed for grid-scale storage applications serving AI data centers, utilities, and independent power producers.
• NFPP Sodium-Ion Battery Cells Proprietary sodium iron phosphate pyrophosphate (NFPP) battery cells purpose-built for stationary grid-scale energy storage duty cycles. The chemistry contains no lithium, cobalt, nickel, or graphite, offers a higher thermal-runaway threshold than LFP, and is stable across -40 to +55 °C ambient. Developed at Peak's Broomfield, Colorado Cell Engineering Center and supplied to the GS1.1 system as well as co-developed for grid storage under the GM Ventures partnership.

Quantifiable outcome

• 20% lower lifetime cost of energy stored compared to conventional lithium-iron phosphate (LFP) systems
• +10 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature7 records

Partnerships

Eight partnerships are on record, tiered core, flagship and minor.

• American Battery Leadership Coalition (ABLC)coreStrategic or Co-development Partner · 18 June 2026Peak Energy is vice-chair of the newly formed American Battery Leadership Coalition (ABLC), which aims to advance sodium-ion battery technology as a scalable, non-lithium alternative for U.S. energy storage, manufacturing competitiveness, and national security. Co-founding members include Alsym Energy (chair), Batri, ESS Tech, Ingevity, Mana, Microporous, NAION, and Re:Build Manufacturing.
• Wallace Battery Cell Innovation Center (GM, Warren MI)coreOEM/ Whitelabel/ Licensing Partner · 18 June 2026GM's Wallace Battery Cell Innovation Center in Warren, Michigan hosts Peak Energy's sodium-ion cell prototyping — material and component development is planned through 2026 at this GM facility.
• General Motors (GM) / GM VenturesflagshipStrategic or Co-development Partner · 9 June 2026Strategic partnership (announced June 9, 2026) backed by a GM Ventures strategic investment in Peak Energy. GM will develop sodium-ion cells at its Michigan battery labs (Wallace Battery Cell Innovation Center) and retain exclusive manufacturing rights, while Peak integrates the cells into its proprietary passively cooled energy storage systems. Targeted commercialization after 2028 with prototyping beginning in 2026.
• RWE AmericascoreStrategic or Co-development Partner · 11 March 2026Agreement to pilot Peak Energy's proprietary passively cooled sodium-ion grid storage battery at RWE's lab in Eastern Wisconsin — the first sodium-ion deployment on the MISO network. RWE is a leading global energy company with approximately 13 GW of operating assets in the U.S.
• Energy VaultflagshipStrategic or Co-development Partner · 9 February 2026Strategic partnership to co-develop a sodium-ion energy storage platform specifically designed for AI-first data center operators. Energy Vault secured a 1.5 GWh supply agreement for Peak's U.S.-manufactured sodium-ion batteries (expected to qualify for Domestic Content Investment Tax Credits) and exclusive channel partner rights for Peak's technology in Australia and Japan. Combines Peak's sodium-ion cells with Energy Vault's Vault OS™ software controls.
• Jupiter PowerflagshipChannel Partner/ Reseller/ Distributor · 12 November 2025Multi-year phased supply agreement for up to 4.75 GWh of Peak's sodium-ion BESS for deployment between 2027 and 2030. Initial 720 MWh delivery in 2027 (largest single deployment of sodium-ion batteries announced to date) plus option for additional 4 GWh in 2028-2030. Total contract value could exceed $500 million.
• Doral Energy (early customer/partner)minorOthersListed by Peak Energy as an early customer/partner — referenced in the company's 2023 launch announcement ("we already have momentum with key customers and partners like Doral Energy").
• Redwood Materials (referenced partnership through GM)minorOthersGM (Peak's strategic partner) is collaborating with Redwood Materials on second-life battery repurposing and battery recycling, including deployments at AI data centers in Nevada. While Peak is not the primary Redwood partner, it is mentioned in the same ecosystem.

Scale indicators13 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• Fluence Energy: Fluence is the largest pure-play grid-scale battery energy storage integrator, deploying utility-scale BESS projects worldwide. Directly comparable to Peak Energy as a competing supplier of multi-hour, grid-scale storage to utilities and IPPs, though Fluence relies primarily on LFP cells from third-party manufacturers rather than a proprietary chemistry.
• Powin Energy: Powin is a U.S.-based grid-scale BESS integrator serving utilities and IPPs with multi-hour, containerized LFP storage systems. Directly comparable to Peak Energy as a competing grid-scale BESS OEM in the same customer set; notably, Peak's CSO Geoff Brown previously served as Powin's CEO.
• Form Energy: Form Energy is a U.S. developer of long-duration iron-air battery systems targeting 100+ hour grid storage, sold to utilities and IPPs. Comparable to Peak as a competing alternative-chemistry grid storage startup pursuing non-LFW pathways for stationary storage, though targeting longer durations than Peak's 4-8 hour systems.
• ESS Tech: ESS Tech manufactures iron-flow battery systems for long-duration grid storage, with units deployed for utilities and commercial customers. Comparable to Peak as a U.S.-based, alternative-chemistry BESS company targeting utility and IPP customers, and a fellow founding member of the American Battery Leadership Coalition.
• Alsym Energy: Alsym Energy is a U.S. developer of non-lithium, water-based battery chemistry for stationary grid storage. Comparable to Peak as the closest direct sodium-ion/alternative-chemistry competitor in the U.S. grid-scale market and as chair of the American Battery Leadership Coalition alongside Peak.
• Energy Vault: Energy Vault develops gravity- and battery-based energy storage systems plus software controls (Vault OS) for utilities and AI data centers. Comparable to Peak as a partner/co-developer for AI data center storage and as a competing grid-scale storage integrator, with a 1.5 GWh supply agreement to integrate Peak's sodium-ion batteries.

Broad incumbents

• Tesla Energy (Megapack): Tesla's Megapack business is a scaled grid-scale LFP battery storage product sold directly to utilities and IPPs globally, with Lathrop and Shanghai gigafactories producing the units. Comparable to Peak as a competing grid-scale BESS OEM, but Tesla is a far broader, vertically integrated incumbent that competes on scale rather than chemistry.
• BYD: BYD is a vertically integrated Chinese EV, battery, and grid-scale storage manufacturer with massive LFP cell capacity. Comparable to Peak as a competing grid-scale storage supplier, though BYD is a broad incumbent whose LFP supply chain faces FEOC restrictions in the U.S. market that benefit Peak.
• CATL: CATL is the world's largest battery manufacturer and a major supplier of LFP cells for grid-scale storage applications globally. Comparable to Peak as a competing battery technology supplier into the BESS value chain, though CATL's Chinese-sourced LFP faces FEOC restrictions that create an opening for Peak's domestic sodium-ion platform.

Emerging players

• Eos Energy Enterprises: Eos Energy Enterprises manufactures zinc-based battery storage systems for utility-scale and commercial customers. Comparable to Peak as a U.S.-based alternative-chemistry BESS company targeting utility customers, though Eos is at an earlier commercial stage and uses a different (zinc) chemistry than Peak's sodium-ion platform.

Market position

Strengths5 records

Weaknesses6 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@PeakEnergyUSA
• LinkedInlinkedin.com/company/peakenergytech

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles13 records

Funding overview

Funding rounds4 records

Investors11 records

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 Peak Energy