About Us

Our Mission

About GTES Work in the Factory

At Grand Teton Energy Systems, our mission is to amplify businesses with cutting-edge lithium iron phosphate battery solutions that deliver exceptional safety, durability, and performance. Through innovation, scalable manufacturing, and global partnerships, we provide reliable and sustainable energy solutions for demanding industries. We are committed to exceeding expectations with battery systems that drive efficiency and long-term success.

About GTES Work in the Factory

Our Mission

At Grand Teton Energy Systems, our mission is to amplify businesses with cutting-edge lithium iron phosphate battery solutions that deliver exceptional safety, durability, and performance. Through innovation, scalable manufacturing, and global partnerships, we provide reliable and sustainable energy solutions for demanding industries, We are committed to exceeding expectations with battery systems that drive efficiency and long-term success.

Highlights About Our Company

Warranty

We offer an industry-leading 10-year warranty for lasting peace of mind.

American-Based

We are proudly American-based, with offices in Rexburg, ID and American Fork, UT.

Experience

Our team brings over 23 years of engineering expertise, serving customers since 2003.

Longevity

With more years in business than any competitor, we deliver unmatched experience.

Meet The Team

Stewart Graham - Chief Executive Officer for GTES

STEWART GRAHAM

Chief Executive Officer

Stewart Graham has over 20 years of experience in the lithium-ion industry. He began his career by introducing lithium iron phosphate (LFP) cathode technology to the world, commercializing LFP in the United States. He then brought LFP to China by building the first LFP factories there.

Stewart has remained active in the lithium-ion battery space, developing cells and packs while building battery factories around the world. With many partners and friends in the industry, he is able to leverage those relationships to provide the best batteries in the world to his customers.

He holds a B.S. degree in Chemical Engineering from Brigham Young University.

Joe Turner - Chief Technology Officer for GTES

JOE TURNER

Chief Technology Officer

Joe Turner has been in the lithium-ion battery industry since 2002. He came from the semiconductor industry and joined Valence Technologies to refine the production parameters of lithium iron phosphate (LFP). As LFP production moved to China, Joe began working on other phosphate-based materials.

Later, he joined K2 Energy, where he oversaw the ramp-up of the company’s first LFP cell manufacturing line. His primary responsibilities at K2 included materials, cell design, and production, as well as designing, building, and commissioning new factories. Joe was also involved in DOE/DOD grants and worked on sizing and troubleshooting battery packs, modules, and systems.

After 11 years with K2 Energy, he joined an external R&D lab, Coulometrics, which provided full cells, testing, and analysis—typically in the 18650 format—running 10–15 cell builds per month for over five years.

Bryan Blakley - Chief Operating Officer for GTES

BRYAN BLAKLEY

Chief Operating Officer

Bryan is a natural strategist and proven leader, known for staying on point. With a successful background in venture capital and executive roles at Fortune 200 companies, he has led high-performing organizations across multiple industries.

He has spent several years in the energy industry, where he has helped deploy enough self-generated energy to replace two fossil fuel plants and power tens of thousands of homes. Bryan’s passion for process and technology has driven his leadership in building information channels, solutions-based software, and systems architecture.

Today, he ensures that Grand Teton Energy Solutions delivers top-quality products efficiently and on time to its customers.

Jeremy Garner - Chief Legal Officer for GTES

JEREMY GARNER

Chief Legal Officer

Jeremy Garner is an experienced corporate attorney specializing in contracts, entity formation, and regulatory compliance. Before joining Grand Teton Energy Solutions, he served as general counsel for a marketing and sales company for eight years.

During that time, Jeremy handled complex business contracts involving Fortune 200 companies and ensured compliance with federal and state laws, among other responsibilities.

Outside of work, Jeremy enjoys golfing, exercising, and traveling.

Stewart Graham - Chief Executive Officer for GTES

STEWART GRAHAM

Chief Executive Officer

Stewart Graham has over 20 years of experience in the lithium-ion industry. He began his career by introducing lithium iron phosphate (LFP) cathode technology to the world, commercializing LFP in the United States. He then brought LFP to China by building the first LFP factories there.

Stewart has remained active in the lithium-ion battery space, developing cells and packs while building battery factories around the world. With many partners and friends in the industry, he is able to leverage those relationships to provide the best batteries in the world to his customers.

He holds a B.S. degree in Chemical Engineering from Brigham Young University.

Joe Turner - Chief Technology Officer for GTES

JOE TURNER

Chief Technology Officer

Joe Turner has been in the lithium-ion battery industry since 2002. He came from the semiconductor industry and joined Valence Technologies to refine the production parameters of lithium iron phosphate (LFP). As LFP production moved to China, Joe began working on other phosphate-based materials.

Later, he joined K2 Energy, where he oversaw the ramp-up of the company’s first LFP cell manufacturing line. His primary responsibilities at K2 included materials, cell design, and production, as well as designing, building, and commissioning new factories. Joe was also involved in DOE/DOD grants and worked on sizing and troubleshooting battery packs, modules, and systems.

After 11 years with K2 Energy, he joined an external R&D lab, Coulometrics, which provided full cells, testing, and analysis—typically in the 18650 format—running 10–15 cell builds per month for over five years.

Bryan Blakley - Chief Operating Officer for GTES

BRYAN BLAKLEY

Chief Operating Officer

Bryan is a natural strategist and proven leader, known for staying on point. With a successful background in venture capital and executive roles at Fortune 200 companies, he has led high-performing organizations across multiple industries.

He has spent several years in the energy industry, where he has helped deploy enough self-generated energy to replace two fossil fuel plants and power tens of thousands of homes. Bryan’s passion for process and technology has driven his leadership in building information channels, solutions-based software, and systems architecture.

Today, he ensures that Grand Teton Energy Solutions delivers top-quality products efficiently and on time to its customers.

Jeremy Garner - Chief Legal Officer for GTES

JEREMY GARNER

Chief Legal Officer

Jeremy Garner is an experienced corporate attorney specializing in contracts, entity formation, and regulatory compliance. Before joining Grand Teton Energy Solutions, he served as general counsel for a marketing and sales company for eight years.

During that time, Jeremy handled complex business contracts involving Fortune 200 companies and ensured compliance with federal and state laws, among other responsibilities.

Outside of work, Jeremy enjoys golfing, exercising, and traveling.

Our Facilities

Southeast Idaho

Home to our manufacturing and warehouse operations, with dedicated lines for assembling both cylindrical and prismatic battery cells.

American Fork, Utah

Home to our corporate offices, including accounting, sales, and company leadership functions.

Timeline

2006

Founding

K2 Energy was founded to develop advanced lithium-ion battery technology.

First LFP Pack

K2 built its first lithium iron phosphate (LFP) battery pack with a proprietary K2-designed battery management system (BMS).

Power Cells Launched

K2 introduced its high-performance power cells to the market.

U.S. Navy Project

K2 was selected by the U.S. Navy to supply batteries for the Rail Gun project.

Acquisition

Grand Teton Energy Systems acquired all intellectual property and equipment from K2 Energy.

Low-Temp Innovation

Grand Teton Energy Systems introduced a new low-temperature battery technology.

2006

Founding

K2 Energy was founded to develop advanced lithium-ion battery technology.

First LFP Pack

K2 built its first lithium iron phosphate (LFP) battery pack with a proprietary K2-designed battery management system (BMS).

Power Cells Launched

K2 introduced its high-performance power cells to the market.

U.S. Navy Project

K2 was selected by the U.S. Navy to supply batteries for the Rail Gun project.

Acquisition

Grand Teton Energy Systems acquired all intellectual property and equipment from K2 Energy.

Low-Temp Innovation

Grand Teton Energy Systems introduced a new low-temperature battery technology.

Become a Partner

If you’re a dealer or distributor in the energy storage industry we’d love to talk. Your customers will love our American-made lithium-ion batteries that deliver superior performance, longevity, and reliability.