🪨 What product is the cornerstone of the US economy, enabling workers to commute every single day? What is the real trick to a truly circular economy? And how is this all tied to the end of World War I? For answers, we turn to Roger Miksad, president and Executive Director of Battery Council International, in discussion with Nate Kirchhofer, CEO of BioZen Batteries.

The rise of the electric starter and returning WWI service members-turned-mechanics helped launch a century-long battery industry that still powers modern life. Roger shares how BCI, founded in 1924, grew from a handful of “garage-scale” manufacturers into the longest-running trade association for the North American battery industry, now steering its second century at the heart of the energy transition.

Learn about Roger’s path: a lawyer who engaged with batteries by way of environmental compliance, worker safety, and end-of-life rules for an intensely regulated industry. Nate and Roger unpack how BCI’s members voluntarily operate with worker-exposure standards far tighter than federal requirements, and how standardization—right down to knowing which battery fits every mass-market vehicle on the road—became a hidden superpower for innovation rather than a constraint. Along the way, they highlight “low-voltage” batteries: starter and 12-volt systems underpin everything from conventional cars and EVs to forklifts, mining equipment, telecom, and backup power, even as new chemistries and applications emerge.

The episode then steps into energy storage for AI-era data centers and critical infrastructure. Nate brings in a real-world conversation about insurability as a gating feature for battery adoption, while Roger explains why fire codes, safety engineering, and early engagement with fire marshals can make or break a project long before a single cell is installed. Together they explore how flow batteries and other aqueous systems are entering the conversation, why BCI chose to support the flow battery community through events like Flow Batteries North America, and how pre-competitive collaboration can give customers confidence without dulling competition. It’s a nuanced look at how technology choice, risk, and regulation all collide.

Finally, Nate and Roger connect policy and circularity, from BCI’s 1980s model recycling law that helped create a profitable closed loop for lead batteries—no subsidies required—to the chemistry-agnostic 45X Advanced Manufacturing Production Credit that’s now similarly reshaping where and how batteries are made in the US.

Roger makes the case that batteries are politically “purple” rather than a niche green add-on, and shares candid advice for anyone who wants to work in energy storage: show up, meet people, and bring your best ideas to an industry that actively welcomes new blood. If you’ve ever wondered how standards, safety, recycling, and smart incentives quietly determine which chemistries win—and how you can be part of that story—this conversation is your invitation.

[Recorded 11 November 2025]

📈 Are Flow Batteries poised to break out in North America? How do AI and data centers compare to electric utilities in their priorities? What is FBNA and how can I attend? Kicking off Season 2 of Beyond Lithium, returning guest Russ Weed (President, CleanTech Strategies) sits down with Nate Kirchhofer (CEO, BioZen Batteries) to unpack how the policy winds have shifted, why private demand from data & AI centers is reshaping storage, and what that means for commercialization. They spotlight the inaugural Flow Batteries North America (FBNA) conference 27-29 October in Chicago: what it is, who it’s for, and why it’s arriving at exactly the right moment.

Russ previews the FBNA program: keynote from the Illinois Commerce Commission chair, three real-world case studies, sessions on use cases, controls/software, bankability, supply chain, an address from Flow Batteries Europe, and a finale on data/AI center applications. Expect a practical, commercialization-first vibe—not just lab talk—including a special video from Dr. Maria Skyllas-Kazacos on the history of the vanadium flow battery, plus an in-person tour of a nearby flow battery facility.

The conversation zooms out to the macro picture: the 45X production tax credit and the IRA’s treatment of energy storage (including standalone eligibility) have kept momentum intact—even as solar/wind face new cliffs—paving the way for a North American supply chain for Flow Batteries. Russ makes the case for proven tolling agreements and revisits the classic cost-schedule-performance triangle: utilities tend to optimize for cost + performance, while data/AI centers prioritize schedule + performance—an opening for flow batteries to scale and drive costs down. If you’re building, buying, or financing long-duration storage, this episode is your roadmap. And Chicago is your next stop.

[Recorded 13 October 2025]

🚒🧯 What’s the best strategy to prevent future battery fires? What type of energy storage system (ESS) does the fire department think is best? How do we build safe energy storage systems? For answers, we turn to Doug Wilson—Senior Fire Plans Examiner for Scottsdale, AZ Fire Department—in conversation with BioZen Batteries’ CEO Nate Kirchhofer.

You’ll hear about Doug’s 30+ year background in both public and private Fire Protection as a registered Fire Protection Engineer, and some insights about the unique career path that that role entails, as well as some of the handful of universities that offer 4-year and/or Masters degrees in Fire Protection Engineering.

The conversation dives into the challenge of proactively staying ahead of new ESS technologies while working from a retrospectively-published 3-year code cycle for the International Fire Code (IFC) from the International Code Council (ICC). Doug comments that, “the Fire Code is published every three years. … The previous one was 2021 and the next edition will be the 2024 Code. When the 2021 code first started being written, it was in 2018, using 2018 technology. It wasn't adopted until 2022. So, in 2024, we were working with the best technology we had in 2018. We're six years behind right now.”

The episode moves to a conversation about the 2.16 MWh Li-ion battery ESS fire and deflagration event that occurred in Surprise, AZ in 2019, and some thoughts about the best practices to avoid similar in the future. (Spoiler: get the Fire Protection Engineers involved early!) It’s hard to know what you don’t know about the safety of a new technology, and the tension between the urgency of deployment and maintaining rigorous safety and testing makes it challenging.

Below are some links for the “what's required” (ICC), “how to do it” (NFPA), and “testing it” (UL) resources for ESS discussed in the episode:

The International Code Council (ICC), including International Fire Code (IFC):

• ICC IFC Section 1206: Stationary Fuel Cell Power Systems
• ICC IFC Section 1207: Electrical Energy Storage Systems

The National Fire Protection Association (NFPA) Standards:

• NFPA 13: Standard for the Installation of Sprinkler Systems
• NFPA 855: Standard for the Installation of Stationary Energy Storage Systems

The Underwriters Laboratories (UL) Standards

• UL 9540: Energy Storage Systems and Equipment
• UL 9540A: Test Method for Battery Energy Storage Systems (BESS)—the only consensus standard explicitly cited in NFPA 855

[Recorded 10 December 2024]

🐳 Why doesn’t Nature store energy using metal? And what does it use? And how many kWh of energy per liter is stored in a Blue Whale?! For answers, we turn to the dynamic duo of Constantin Eis (CEO, CMBlu Energy AG—the mothership) & Giovanni Damato (President, CMBlu Energy, Inc.—the CA, US manufacturing subsidiary) who sit down (in person!) with BioZen’s CEO Nate Kirchhofer at RE+ in Anaheim, CA—the most comprehensive clean energy industry event in North America.

This discussion covers the “secret sauce” working mechanism of CMBlu’s flagship Organic SolidFlow technology, combining elements of both flow batteries and solid state energy storage, as well as its advantages in:

• safety (no fire)
• sustainability (recyclable earth-abundant conflict free materials)
• security (local, mature, vertically integrated supply chains)
• footprint (efficient built environment; stack vertically)
• flexibility / modularity (separate scaling of power and energy)
• serviceability (conventional parts for repairs and (de)commissioning)

Hear about CMBlu’s market traction, including pilot projects with WEC Energy Group in Wisconsin, Salt River Project in Phoenix Arizona, and the DOE and National labs—not to mention their first commercial order by Mercedes.

Stick around for more info about the Organic SolidFlow battery cycle life and its “Depots” and “Shuttles”, its differentiation from lithium ion technology, audacious goals of getting to $0.01/kWh LCOS, some thoughts on the petroleum industry, and advice on relentless pursuit of innovation: "I think what we needed to learn is that no one is really waiting for you apparently, so you really need to do it by yourself."

We also discuss the continued positive impacts of the 2022 IRA and BIL, trends in utilities’ energy storage going from current 4h discharge to 8h+, forecasts for 2035 and even 50 years from now, and some things that surprised Giovanni and Constantin during the commercialization process.

[Recorded 10 Sept 2024]

🧗‍♂️ What is Fourth Power’s Guinness World record? Can we make renewables just as dispatchable as fossil fuels? And how is a battery like a carabiner?! For answers, tune into this episode where Arvin Ganesan, CEO of Fourth Power, sits down to discuss the company's groundbreaking thermal battery technology and its role in the future of renewable energy with host Nate Kirchhofer, CEO of BioZen Batteries.

Fourth Power, spun out from MIT and Georgia Tech, has developed a system that uses liquid tin heated to over 2400°C to store energy and discharge for 5-500 hours. Arvin explains that this scalable and low-cost energy storage solution is critical for enabling a fully renewable grid, as it addresses the challenges of making renewable energy sources dispatchable and reliable, well-aligned with the global transition away from fossil fuels.

The discussion moves to what utilities prioritize—reliability, safety, and cost—when considering new technologies. Fourth Power's thermal battery system is designed with these priorities in mind, ensuring it can offer renewable energy that is ultimately cheaper than fossil fuels and also available for dispatch like traditional fossil fuel power plants, giving utilities critical control over energy generation.

Hear some technical details of Fourth Power’s "sun in a box" technology that involves storing energy in carbon blocks heated by liquid tin. Arvin contrasts their technology with other thermal battery solutions as well as lithium-ion batteries, particularly in scalability and cost-efficiency; while lithium-ion batteries have been crucial for short-duration storage, the scale of storage needed to support a fully renewable grid—100 terawatt-hours—demands more affordable and scalable alternatives.

Looking forward, Fourth Power is building a 1 MWh prototype facility near Boston, slated for completion by 2025. This facility will test all components at full scale (1 GWh compatible) to de-risk the technology before scaling to commercial levels. The company’s next milestones include durability testing of the system's components, integrating a full one-megawatt-hour battery by 2025, and collaborating with utility partners on a 10-megawatt-hour pilot by 2026, all critical to demonstrating the technology’s reliability and preparing for larger deployments.

The discussion wouldn’t be complete without coverage of regulatory and market challenges in introducing new technologies to utilities, which have traditionally been cautious adopters. The increasing demand for power, driven by electrification and data centers, will push utilities to seek out innovative solutions that provide reliability, affordability, and clean energy.

[Recorded 4 June 2024]

🔋 What’s a 50 year old battery technology, made from abundant elements, with no risk of thermal runaway and no cycling degradation? Why was it originally targeted for EVs but now more for grid storage? What unique advantages does this decades-old technology bring to the table in today’s market? What do the utilities think?

In this latest episode, our guest Ben Kaun, Chief Commercial Officer at Inlyte Energy, delves into these questions —and a lot more—with host Nate Kirchhofer, CEO of BioZen Batteries. Ben has a rich background in energy storage, including stints at Tesla Motors and the Electric Power Research Institute (EPRI), and shares his insights into the evolving landscape of energy storage technologies and his journey that led him to Inlyte, a company focused on commercializing this decades-old technology.

Ben’s energy storage journey is fascinatingly personal, rooted in his father’s early work in electrochemistry, which sparked his initial interest in batteries. He recounts the twists and turns of his career, from working in his father’s backyard startup to joining Tesla before the Roadster’s debut. He touches on the challenges of advocating for battery storage in the utility sector, a space often dominated by concerns of safety and reliability. These experiences have brought him to his current role at Inlyte, where he’s now pushing forward a technology that’s nearly 50 years old but that Ben argues is well-suited for today’s energy challenges. He explains that while lithium-ion batteries dominate the market, their limitations in long-duration storage and safety concerns leave room for alternatives. Inlyte’s technology offers a reliable solution for 6 to 12-hour storage needs. Ben’s narrative hints at a future where this technology could play a significant role, especially in scenarios where safety and cost are critical. But can this technology truly compete with the behemoth that is lithium-ion?

As the conversation deepens, Nate and Ben explore the broader implications of energy storage on the grid and the importance of long-duration storage in achieving decarbonization goals. Ben paints a picture of a rapidly evolving market where traditional utilities, once skeptical of batteries, are now facing the urgent realities of intermittent and exponentially growing renewable energy. He also discusses the challenges of integrating new technologies into a highly regulated and risk-averse industry. For listeners curious about the economic and technical nuances of energy storage, this segment offers valuable insights. What will be the tipping point for utilities to embrace these new technologies fully?

In the final segment, Ben offers advice for those looking to enter the energy storage field. He emphasizes the importance of aligning one’s work with a greater purpose and remaining open to new opportunities.

[Recorded 8 May 2024]

📊 What is impact, and how is it quantified? Why are 87% of clean energy projects severely delayed or failing? If current electricity consumption is 4000 TWh/year, what will it be in 2050 (hint: a lot more)? What is the biggest challenge in decarbonizing that increased demand? And what is BioZen's possible impact?

For answers, we're bringing back our guest from Episode 4, Dr. Daniel Howard, CEO and cofounder of Quantum Energy Inc, to join BioZen Batteries' CEO Nate Kirchhofer. Daniel, and Quantum, is a big advocate for standardizing the way that impact is quantified through industry-standard lifecycle assessments (LCA). Ultimately, this enables data-driven evidence to justify permitting and policy decisions in an otherwise murky benefits-vs-negatives ecosystem.

"Oftentimes those overlooked costs, i.e. the [environmental and health] externalities, can be far larger than the infrastructure costs. And simply by quantifying them and including them in our decision making frameworks, we can make decisions that have much better impact and much lower total costs for everyone—and help to create a society, and ideally a new iteration of capitalism, that's more equitable and more sustainable," says Daniel.

BioZen also contracted Quantum to run an impact analysis for our technology (read the article here), so stick around to hear Daniel summarize the results of that analysis, and think about how you can apply this to your clean technology!

Recorded 16 May 2024.

[BioZen Batteries produces this show as part of the Clean Power Media Group at cleanpower.media. If you would like to interact more, please send us an email at ⁠⁠⁠⁠hello@biozenbatteries.com⁠⁠⁠⁠, write a comment, like, follow, share, or even leave us a voice message on your favorite episodes. If you like what we do, please consider a monthly contribution.]

🚀 “It’s not rocket science,” someone once told Mike Berger, Stryten Energy’s Director of Product Engineering. "Yes," he agreed. “It’s probably even a little more complicated than rocket science because really it takes chemistry, electricity, materials, and electrochemistry.” Listen to this episode to understand what he’s talking about in discussion with BioZen’s CEO Nate Kirchhofer.

Stryten Energy is a US manufacturer of high-quality lead (Pb) batteries, lithium (Li) batteries, and vanadium (V) redox flow batteries (RFBs)—as well as chargers and performance management software. Their variety of Industrial Pb battery production plants are concentrated in the US Midwest, whereas their Innovation Centers are located in Ottowa (Li-ion) and Denver (VRFBs). Overall, with 2.5 million sq ft of manufacturing space and 2500 employees, Stryten cranks out 14 GWh of energy storage products per year, putting them at #3 in the US, and they address four major market segments:

1. Essential Power: telecom, utilities, microgrids, residential solar, security
2. Motive Power: 90% of it is forklifts, as well as chargersand performance management tools
3. Transportation: batteries for automotive e, truck, SUV,heavy duty, agriculture, marine
4. Military and Government: submarines, micro grids, combat vehicles, ground logistics

Mike brings a wealth of insights from his 30 years of experience in Pb acid batteries. We learn about tradeoffs in performance / cost / design decisions to make a battery that meets customer requirements at a good value, and how Pb batteries compare to Li-ion. We also learn about some of the biggest challenges in scaling up energy storage to meet the demand needed in the next 10-20 years: “I think the scale is by far my biggest concern for alternative energy storage, regardless of which chemistry. And that's why I believe that all chemistries are going to be needed because I think they're all going to serve a purpose,” he says, concluding that “Pb chemistry [is] available, affordable, recyclable, safe, reliable and well-understood. We shouldn't dismiss Pb technology just because of its age. I think there's a great opportunity to optimize Pb for these new challenges that are before us.”

Stick around for more facts about Stryten and the Pb industry:

• 90% of Pb batteries used & sold in the US are made in the US. Over 99% of Pb batteries are recycled, and 100% of the Pb that Stryten uses is recycled. The plastic, and in some cases even the acid, can be recycled.
• Pb has historically been a health risk, but the immense history of innovation, engineering controls, and personal protective equipment now prevent exposure.
• <5% of Li batteries are recycled. By contrast, Pb batteries at >99% show a path for value retention and a circular recycling economy.
• Pb batteries were perfected in the field. In comparison, Li-ion batteries were designed and perfected in the lab. Because of this, lab R&D for Pb batteries will improve efficiency, cycle life, and applications.
• The Pb industry is old, but they have committed to novel pre-competitive joint R&D with national labs, such as the recently awarded $5M in DOE funding to establish the Consortium for Lead Battery Leadership in Long Duration Energy Storage including Stryten and 7 other BCI-member Pb-battery companies.
• Remote EV Fast Charging stations may be a greatapplication for Pb batteries due to their safety and reliability.
• Stryten's Li-ion and VRFB verticals (acquired in the past few years) makes them technology-agnostic and able to deliver a solution to a given customer application (though current bulk of their production is Pb)

Recorded 17 January 2024.

[BioZen Batteries produces this show as part of the Clean Power Media Group at cleanpower.media. If you would like to interact more, please send us an email at ⁠⁠⁠hello@biozenbatteries.com⁠⁠⁠, write a comment, like, follow, share, or even leave us a voice message on your favorite episodes.]