
Why Long-Duration Energy Storage Breaks Batteries – and How Hydrogen Fixes It with Mia Rath
Hardware to Save a Planet
00:00
Permitting and safety benefits of solid hydrides
Mia discusses easier permitting inside buildings and why metal hydrides fall under less onerous NFPA rules than gaseous hydrogen.
Play episode from 29:45
Transcript
Transcript
Episode notes
In order to meet demand peaks, utilities often have to fire up dirty power plants, essentially generators that burn extra fuel per unit of electricity. So the electricity from those peaker plants is not only the most expensive but also has the highest emissions of any electricity on the grid. But now there’s a solution on the horizon.
In this episode of Hardware to Save a Planet, host Dylan Garrett speaks with Mia Rath, co-founder and CTO of Lumindt, about how solid-state hydrogen storage is transforming commercial energy. They explore how metal hydride batteries decouple power from energy capacity, enabling long-duration, cost-effective storage. Mia explains why this approach outperforms lithium-ion systems, slashes operating costs, and reduces peaker-plant emissions. Listeners will gain insights into scaling hardware innovation, material breakthroughs, and strategies for resilient, on-site renewable energy deployment.
What you will learn:
- How to decouple power and energy in battery systems
- Why metal hydride storage beats compressed and cryogenic hydrogen
- The material science principle driving Lumen's competitive advantage
- How to build a resilient on-site energy strategy for data centers and warehouses
- Why iterative hardware manufacturing is non-negotiable for startups
- How to navigate permitting advantages in emerging energy technologies
Mia Rath is the Cofounder and CTO of Lumen, a pioneering energy storage company developing novel solid-state hydrogen battery technology for commercial applications. With a background in aerospace engineering and materials science from Georgia Tech, Rath has leveraged her expertise in advanced materials to create an innovative solution that decouples power and energy in energy storage systems.
Hardware to Save a Planet is brought to you by Synapse. We are a global product development and engineering firm that partners with visionary companies to design, develop, and realize breakthrough hardware and AI-powered innovations that advance climate technologies.
To learn more about Synapse and potential business partnerships we offer outside of the podcast, please visit: https://www.synapse.com/contact/ to get in touch!
Episode Resources:
- Mia Rath on LinkedIn
- Lumindt Website
- Dylan Garrett on LinkedIn
- Synapse Podcast Website
- Synapse Website
- Hardware to Save a Planet Apple Podcasts
- Hardware to Save a Planet Spotify
Hardware to Save a Planet is handcrafted by our friends over at: fame.so
If you are interested in sponsoring Hardware to Save a Planet, please see our sponsorship offer here.
Previous guests include: Peter Reinhardt of Charm Industrial, Carlos Araque of Quaise, Noah McQueen of Heirloom, Areeb Malik of Glacier, Jeff Satwicz of Bigbelly, Abe Schneider of Natel Energy, Insiya Jafferjee of Shellworks, Paul Gross of Remora, Erika Boeing of Accelerate Wind and Daniel Betts of Blue Frontier.
Check out our three most downloaded episodes:
If you are interested in sponsoring Hardware to Save a Planet, please see our sponsorship offer here.
Previous guests include: Peter Reinhardt of Charm Industrial, Carlos Araque of Quaise, Noah McQueen of Heirloom, Areeb Malik of Glacier, Jeff Satwicz of Bigbelly, Abe Schneider of Natel Energy, Insiya Jafferjee of Shellworks, Paul Gross of Remora, Erika Boeing of Accelerate Wind and Daniel Betts of Blue Frontier.
Check out our three most downloaded episodes:
- Going Big on Clean Energy with Small Fusion Reactors with Robin Langtry, Co-Founder and CEO of Avalanche Energy
- The Role of Energy Storage Systems in Combating Climate Change with Mike Wietecki of Powin and John Thomas of ESS
- Marine Electrification to Reduce Costs and Environmental Damage: A Conversation with Marcelino Alvarez, CEO of Photon Marine
If you have an interesting hardware solution to the climate crisis and would like the opportunity to share this with our audience, please complete this Guest Application form: https://fame.so/syn
The AI-powered Podcast Player
Save insights by tapping your headphones, chat with episodes, discover the best highlights - and more!


