Energy Day
Denver, CO
Monday, October 27, 2025

Energy Day
Published by
Peak Energy
Last week in Denver, Peak hosted 47 of its customers and development partners to celebrate the power on of Peak’s product - the first passively cooled Energy Storage System in the world. With live data, a deep dive into sodium-ion chemistry, and a site visit, Peak gave guests an unfiltered look into the development of the Peak ESS, from cell to site.

Commercial buy-in has shaped Peak’s ESS from the start. In the Peak Pilot Program, nine of America’s leading IPPs partnered with Peak to give feedback and view exclusive data, resulting in a product that, as shared by Peak Head of Product Hugh Ross, was “designed with what customers wanted in mind, so that we could deploy a product they really needed onto the grid.”
Energy Day took attendees on an in-depth tour of the company’s Cell Engineering Center, where guests got up close with the engineers and equipment behind our proprietary Sodium-ion NFPP cell design. Peak CCO Cameron Dales and CSO Geoff Brown then shared insights from Peak’s self-funded, radically derisked Pilot Program strategy before the group visited the ESS pilot site to see the product in person.
Energy storage is complex, and throughout the day, attendees posed questions on cell design, system cost, supply chains, and thermal performance to the Peak team. In their answers, team members were transparent, sharing live data on ESS thermal performance, comprehensive cell readouts, and candid insights into our suppliers and domestic manufacturing. Live from the Cell Development Lab and ESS project site, Peak converted the few Sodium-ion skeptics present in the crowd and deepened trust in key members of the energy sector through the honest, compelling data of our product.
Energy Day marked the close of Peak’s first phase, a two year-period of rapid growth as the company leveled its operations from inception to a proven technology and successful product delivery. As Peak now executes large-scale commercial projects, these first two years have laid a strong foundation for the company to deploy with speed and intention.
In Denver, it was incredible to see firsthand the understanding and excitement stoked by Peak’s innovative engineers and product. Peak is deeply proud of the partnerships, learning, and delivery that this day celebrated, and we’re moving forward into our large-scale commercial deployments as a team ready to remake the grid.
Read more about Energy Day from sector leaders here:
https://www.linkedin.com/posts/ian-graham-565b25a6_on-site-in-denver-with-peak-energy-seeing-activity-7389376366502350849-K2VI?utm_source=share&utm_medium=member_desktop&rcm=ACoAAC5U5MgBj5pvluhlhwyjK-go1mlMWoaRGbQ
Sandy’s Energy Day Post https://www.linkedin.com/posts/sandyholt_energystorage-sodiumion-bess-activity-7390077042551287808-_ff4?utm_source=share&utm_medium=member_desktop&rcm=ACoAAC5U5MgBj5pvluhlhwyjK-go1mlMWoaRGbQ

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Wednesday, July 30, 2025
PR Newswire
Peak Energy Delivers First Grid-Scale, Sodium-Ion Battery Storage System in the U.S.
Denver, CO
Today, Peak announced the launch and shipment of its sodium-ion battery energy storage system (ESS) that delivers a patent-pending passive cooling design to dramatically reduce lifetime energy costs. Cost-competitive with state of the industry products while offering dramatically lower operating and maintenance costs, Peak Energy's product is the first ever fully passive megawatt-hour scale battery storage system, the largest sodium-ion phosphate pyrophosphate (NFPP) battery system in the world, and the first grid-scale sodium-ion storage solution ever deployed to the U.S. electric grid. Deploying the system in a shared pilot with nine leading utility and independent power producer (IPP) customers this summer, Peak Energy is fast-tracking its promise to onshore battery manufacturing.

Saturday, January 25, 2025
The Information
Peak Energy selected as America's most promising energy start up – The Information
New York, NY
Peak Energy is proud to announce the successful closure of a $55 million funding round aimed at accelerating the development and commercialization of our sodium-ion battery technology. This investment underscores the growing interest in alternative energy storage solutions that can complement or replace traditional lithium-ion batteries, particularly in grid-scale applications.

Friday, December 20, 2024
The Wall Street Journal
The Unlikely Ingredient That Could End U.S. Dependence on Chinese Batteries
Batteries that use sodium instead of lithium could allow the U.S. and its allies to create a completely new supply chain for the energy storage taking off across the world

Monday, December 16, 2024
PV Magazine USA
Peak Energy Opens Battery Cell Engineering Center
Broomfield, CO
Peak Energy is proud to announce the inauguration of our state-of-the-art Battery Cell Engineering Center located in Broomfield, Colorado. This facility marks a significant milestone in our mission to advance sodium-ion battery technology and establish a robust domestic supply chain for energy storage solutions in the United States.

Friday, July 19, 2024
tn global
Temasek's Xora Innovation leads $55M Series A funding round in US battery maker Peak Energy
Singapore
Peak Energy has closed a $55M Series A led by Xora Innovation, with participation from Eclipse, TDK Ventures, and new strategic investors. The funding will accelerate full-scale sodium-ion system production and break ground on Peak’s first U.S. giga-scale sodium-ion battery factory, slated to open in 2027. Pilot deployments begin next year with six premier customers — including three of the nation’s top five independent power producers — marking a pivotal step toward U.S.-produced, utility-scale sodium-ion storage.
Energy Day
Denver, CO
Monday, October 27, 2025

Energy Day
Published by
Peak Energy
Last week in Denver, Peak hosted 47 of its customers and development partners to celebrate the power on of Peak’s product - the first passively cooled Energy Storage System in the world. With live data, a deep dive into sodium-ion chemistry, and a site visit, Peak gave guests an unfiltered look into the development of the Peak ESS, from cell to site.

Commercial buy-in has shaped Peak’s ESS from the start. In the Peak Pilot Program, nine of America’s leading IPPs partnered with Peak to give feedback and view exclusive data, resulting in a product that, as shared by Peak Head of Product Hugh Ross, was “designed with what customers wanted in mind, so that we could deploy a product they really needed onto the grid.”
Energy Day took attendees on an in-depth tour of the company’s Cell Engineering Center, where guests got up close with the engineers and equipment behind our proprietary Sodium-ion NFPP cell design. Peak CCO Cameron Dales and CSO Geoff Brown then shared insights from Peak’s self-funded, radically derisked Pilot Program strategy before the group visited the ESS pilot site to see the product in person.
Energy storage is complex, and throughout the day, attendees posed questions on cell design, system cost, supply chains, and thermal performance to the Peak team. In their answers, team members were transparent, sharing live data on ESS thermal performance, comprehensive cell readouts, and candid insights into our suppliers and domestic manufacturing. Live from the Cell Development Lab and ESS project site, Peak converted the few Sodium-ion skeptics present in the crowd and deepened trust in key members of the energy sector through the honest, compelling data of our product.
Energy Day marked the close of Peak’s first phase, a two year-period of rapid growth as the company leveled its operations from inception to a proven technology and successful product delivery. As Peak now executes large-scale commercial projects, these first two years have laid a strong foundation for the company to deploy with speed and intention.
In Denver, it was incredible to see firsthand the understanding and excitement stoked by Peak’s innovative engineers and product. Peak is deeply proud of the partnerships, learning, and delivery that this day celebrated, and we’re moving forward into our large-scale commercial deployments as a team ready to remake the grid.
Read more about Energy Day from sector leaders here:
https://www.linkedin.com/posts/ian-graham-565b25a6_on-site-in-denver-with-peak-energy-seeing-activity-7389376366502350849-K2VI?utm_source=share&utm_medium=member_desktop&rcm=ACoAAC5U5MgBj5pvluhlhwyjK-go1mlMWoaRGbQ
Sandy’s Energy Day Post https://www.linkedin.com/posts/sandyholt_energystorage-sodiumion-bess-activity-7390077042551287808-_ff4?utm_source=share&utm_medium=member_desktop&rcm=ACoAAC5U5MgBj5pvluhlhwyjK-go1mlMWoaRGbQ

More articles

Peak Energy Delivers First Grid-Scale, Sodium-Ion Battery Storage System in the U.S.
Denver, CO

Peak Energy selected as America's most promising energy start up – The Information
New York, NY

The Unlikely Ingredient That Could End U.S. Dependence on Chinese Batteries

Peak Energy Opens Battery Cell Engineering Center
Broomfield, CO

Temasek's Xora Innovation leads $55M Series A funding round in US battery maker Peak Energy
Singapore
Energy Day
Denver, CO
Monday, October 27, 2025

Energy Day
Published by
Peak Energy
Last week in Denver, Peak hosted 47 of its customers and development partners to celebrate the power on of Peak’s product - the first passively cooled Energy Storage System in the world. With live data, a deep dive into sodium-ion chemistry, and a site visit, Peak gave guests an unfiltered look into the development of the Peak ESS, from cell to site.

Commercial buy-in has shaped Peak’s ESS from the start. In the Peak Pilot Program, nine of America’s leading IPPs partnered with Peak to give feedback and view exclusive data, resulting in a product that, as shared by Peak Head of Product Hugh Ross, was “designed with what customers wanted in mind, so that we could deploy a product they really needed onto the grid.”
Energy Day took attendees on an in-depth tour of the company’s Cell Engineering Center, where guests got up close with the engineers and equipment behind our proprietary Sodium-ion NFPP cell design. Peak CCO Cameron Dales and CSO Geoff Brown then shared insights from Peak’s self-funded, radically derisked Pilot Program strategy before the group visited the ESS pilot site to see the product in person.
Energy storage is complex, and throughout the day, attendees posed questions on cell design, system cost, supply chains, and thermal performance to the Peak team. In their answers, team members were transparent, sharing live data on ESS thermal performance, comprehensive cell readouts, and candid insights into our suppliers and domestic manufacturing. Live from the Cell Development Lab and ESS project site, Peak converted the few Sodium-ion skeptics present in the crowd and deepened trust in key members of the energy sector through the honest, compelling data of our product.
Energy Day marked the close of Peak’s first phase, a two year-period of rapid growth as the company leveled its operations from inception to a proven technology and successful product delivery. As Peak now executes large-scale commercial projects, these first two years have laid a strong foundation for the company to deploy with speed and intention.
In Denver, it was incredible to see firsthand the understanding and excitement stoked by Peak’s innovative engineers and product. Peak is deeply proud of the partnerships, learning, and delivery that this day celebrated, and we’re moving forward into our large-scale commercial deployments as a team ready to remake the grid.
Read more about Energy Day from sector leaders here:
https://www.linkedin.com/posts/ian-graham-565b25a6_on-site-in-denver-with-peak-energy-seeing-activity-7389376366502350849-K2VI?utm_source=share&utm_medium=member_desktop&rcm=ACoAAC5U5MgBj5pvluhlhwyjK-go1mlMWoaRGbQ
Sandy’s Energy Day Post https://www.linkedin.com/posts/sandyholt_energystorage-sodiumion-bess-activity-7390077042551287808-_ff4?utm_source=share&utm_medium=member_desktop&rcm=ACoAAC5U5MgBj5pvluhlhwyjK-go1mlMWoaRGbQ

More articles

Peak Energy Delivers First Grid-Scale, Sodium-Ion Battery Storage System in the U.S.
Denver, CO

Peak Energy selected as America's most promising energy start up – The Information
New York, NY

The Unlikely Ingredient That Could End U.S. Dependence on Chinese Batteries

Peak Energy Opens Battery Cell Engineering Center
Broomfield, CO
