Green Blueprint: Form's storage manufacturing breakthrough

Green Blueprint: Form's storage manufacturing breakthrough

August 21, 2026 · 50 min

About this episode

Mateo Jaramillo discusses Form Energy's breakthrough in iron-air battery technology and the challenges of scaling manufacturing.

We're on vacation through the end of August, so this week we’re featuring an episode of The Green Blueprint. Lithium-ion batteries have revolutionized energy storage. But inexpensive, multi-day storage will still be critical for backing renewables and decarbonizing the grid.  Form Energy is tackling that challenge with a new class of iron-air batteries. By oxidizing and reducing iron, Form is creating low-cost, multi-day storage that competes directly with natural gas peaker plants.  Mateo Jaramillo, CEO and co-founder of Form Energy, has spent over two decades in the battery industry, including building Tesla’s storage business. At Form, he’s leading the charge to bring these "E-peakers" to utilities across the country. The company recently achieved a major milestone: completing a one-million-square-foot factory on the site of an old steel mill in Weirton, West Virginia. In this episode, Mateo talks with host Lara Pierpoint about the grueling realities of scaling up manufacturing, why they chose to build in West Virginia, using AI to drive material science discovery, and the immense logistical challenges of building physical infrastructure.  Open Circuit is…

Sponsors

Building an Advanced Energy Ecosystem

More episodes of Open Circuit

Explore listener stats, chart rankings, contacts and more on the Open Circuit podcast page.