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Clean Power Hour

Clean Power Hour

By: Tim Montague John Weaver
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The Clean Power Hour podcast is speeding the clean energy transition. Tim Montague and John Weaver highlight clean energy innovations shaping the next generation of renewable energy sources. We discuss the latest solar PV, battery storage, wind, water, wave, and other low-carbon technologies. We answer the question: How can we decarbonize the economy? We promote the economic opportunity of electrifying everything - transportation, energy, industry, and the built environment. Let's speed up the clean energy transition together. Join the movement - www.CleanPowerHour.com

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Episodes
  • Can Homeowners Finally Afford Whole Home Backup? #352

    Can Homeowners Finally Afford Whole Home Backup? #352
    May 26 2026

    Energy resilience for homeowners is the mission behind Energy Access Innovations, a multi-brand clean energy company building an end-to-end ecosystem for solar and battery storage. Nicole Tomasin, Chief Commercial Officer at EAI, joins Tim Montague to explain how the company serves the consumers the rest of the industry ignores, including DIYers and rural markets.

    Battery storage and solar access for homeowners is moving beyond coastal markets and high-income consumers. Energy Access Innovations has built a multi-brand portfolio covering distribution, DIY support, installation, and financing under one mission: making energy resilience affordable for every American. Nicole walks Tim through how the company's sister brands, including EG4, Signature Solar, Outback Power, Solar 76, Sun Atlas Power, and EA365, work together to serve customers that most distributors and installers turn away.

    The company's new XR60 battery, 60 kWh with a 16 kW inverter for under $20,000, and its EA365 prepaid lease, which returns a 30% rebate directly to homeowners, are proof that affordability and transparency are not competing goals.

    Here is what you will learn in this conversation about residential battery storage affordability and energy resilience:

    • You will find out how the XR60 delivers 60 kWh of storage and a 16 kW inverter for under $20,000, why it ships as a single freestanding unit weighing 1,600 pounds, and when it arrives in market.
    • Learn how the EA365 prepaid lease returns a 30% rebate directly to homeowners, making the residential ITC phase-out less damaging for consumers who no longer qualify for the tax credit.
    • Understand why Energy Access Innovations built Sun Atlas Power, its own EPC company, to capture DIY customers who need installation help, and how it taps a network of 2,000 to 3,000 regional contractors already buying through Signature Solar.
    • Find out why Tim pushed back on a California developer's claim that consumer-owned residential batteries are done, and what EAI's experience with DIY customers suggests about that prediction.
    • You will hear why Texas surpassed California in storage deployment, how PJM grid services programs are generating returns that recover a battery investment in two to three years, and why Illinois is a priority market for EAI.

    The residential ITC phase-out is compressing margins across the solar industry and pushing more customers toward third-party ownership models. Illinois is incentivizing 1.8 gigawatts of distributed batteries through its clean energy incentive program, and Texas has already surpassed California in storage deployment. Contractors who are not yet offering storage are running out of time to get positioned.

    Connect with Nicole Tomasin, Energy Access Innovations

    Nicole Tomasi: https://www.linkedin.com/in/nicole-santos-tomasin/
    Sun Atlas Power: https://www.sunatlaspower.com/
    Episode 325, James Showalter: https://youtu.be/7CoJQ_lTLkU

    Support the show

    Connect with Tim

    Clean Power Hour
    Clean Power Hour on YouTube
    Tim on Twitter
    Tim on LinkedIn

    Email tim@cleanpowerhour.com

    Review Clean Power Hour on Apple Podcasts

    The Clean Power Hour is produced by the Clean Power Consulting Group and created by Tim Montague. Contact us by email: CleanPowerHour@gmail.com

    Corporate sponsors who share our mission to speed the energy transition are invited to check out https://www.cleanpowerhour.com/support/

    The Clean Power Hour is brought to you by CPS America, maker of North America’s number one 3-phase string inverter, with over 6GW shipped in the US. With a focus on commercial and utility-scale solar and energy storage, the company partners with customers to provide unparalleled performance and service. The CPS America product lineup includes 3-phase string inverters from 25kW to 275kW, exceptional data communication and controls, and energy storage solutions designed for seamless integration with CPS America systems. Learn more at www.chintpowersystems.com
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    54 mins
  • Perovskite Tandem Solar: Breaking the 30% Efficiency Limit #351

    Perovskite Tandem Solar: Breaking the 30% Efficiency Limit #351
    May 21 2026
    Silicon solar is approaching a hard physical efficiency ceiling at 30%. Perovskite tandem solar is the only proven path through it. Joel Jean, CEO of Swift Solar, explains the technology, what the Meyer Burger acquisition brings, and where tandems sit on the road to commercial scale.After seven decades, silicon solar is closing in on its physical efficiency limit, and no previous thin-film technology has been able to outperform it at competitive cost. Joel Jean, CEO and co-founder of Swift Solar, a tandem PV manufacturer based in California, joined Tim Montague on the Clean Power Hour to explain why perovskite-silicon tandems are different and how Swift is building toward commercial scale. Jean explains how Swift's approach of vertically integrating perovskite and silicon at the cell level differs from other tandem strategies, and what certifications and milestones a new module technology must clear before utility buyers and independent engineers will finance it. The conversation also covers the US position in the global solar race, perovskite degradation and lead-content concerns, and what a consistent industrial policy would mean for US solar manufacturers.Here is what you will learn in this conversation about perovskite tandem solar and the path to next-generation module efficiency:You'll understand why silicon solar cells are physically limited to around 30% efficiency, and how stacking a perovskite layer on silicon creates a two-junction cell with a path to 35-40%, with three junctions pushing toward 45% or more.Find out what Swift Solar gains from the Meyer Burger acquisition: a heterojunction product with 0.2% annual degradation, the lowest rate in the industry, and a bankable product to serve customers while the tandem completes its certification and field-proof timeline.Learn why Swift's approach of integrating perovskite and silicon at the cell level differs from other tandem strategies, including four-terminal approaches where perovskite is deposited on glass and stacked on a separate module.You'll hear Tim push back on two common concerns about perovskites: degradation and lead content. Joel explains Swift's cell-level stability progress and why perovskite panels contain less lead per square meter than the solder in a standard silicon module.With China installing solar 8.5 times faster than the US and having spent 15-20 years building a manufacturing and policy foundation, the US is still trying to rebuild. The window for US tandem solar companies to establish a position is narrowing. Swift Solar's acquisition of Meyer Burger assets is one of the few cases where a US perovskite tandem startup enters the market with a proven, bankable product already generating field data, rather than waiting years for the tandem to reach certification. For solar professionals evaluating next-generation module technology and investors tracking the US manufacturing pipeline, this conversation gives a clear picture of where tandem technology stands today and what the next two to three years need to deliver.Connect with Joel Jean, Swift Solar LinkedIn: https://www.linkedin.com/in/joeljean/Swift Solar: https://www.swiftsolar.com/ Support the showConnect with Tim Clean Power Hour Clean Power Hour on YouTubeTim on TwitterTim on LinkedIn Email tim@cleanpowerhour.com Review Clean Power Hour on Apple PodcastsThe Clean Power Hour is produced by the Clean Power Consulting Group and created by Tim Montague. Contact us by email: CleanPowerHour@gmail.comCorporate sponsors who share our mission to speed the energy transition are invited to check out https://www.cleanpowerhour.com/support/The Clean Power Hour is brought to you by CPS America, maker of North America’s number one 3-phase string inverter, with over 6GW shipped in the US. With a focus on commercial and utility-scale solar and energy storage, the company partners with customers to provide unparalleled performance and service. The CPS America product lineup includes 3-phase string inverters from 25kW to 275kW, exceptional data communication and controls, and energy storage solutions designed for seamless integration with CPS America systems. Learn more at www.chintpowersystems.com
    Show More Show Less
    47 mins
  • US Solar Has a Quality Problem: What Buyers Need to Know

    US Solar Has a Quality Problem: What Buyers Need to Know
    May 19 2026
    A new report from Clean Energy Associates found that some solar module factories in their first year of production are hitting yield rates as low as 30%. That means 70% of modules coming off certain lines require rework before they ship. The finding applies directly to US manufacturers, most of which are still in early ramp-up stages. In this week's Clean Power Hour Live, Tim Montague and John Weaver break down what the report means for solar developers sourcing modules right now, why newer factories in the US face the same challenges previously seen in India and Vietnam, and what due diligence steps developers should be taking before modules arrive on site. They also cover grid-forming battery validation, island microgrids, and a $14 billion Chinese renewable energy investment in Ethiopia.This episode covers battery storage technology, solar panel manufacturing quality, island microgrids, and large-scale renewable energy investment in Africa. These are the stories Tim and John break down this week:US solar panel manufacturers are struggling with soldering quality during factory ramp-up. A report from Clean Energy Associates (CEA) shows yield rates as low as 30% in early production years, meaning 70% of modules require rework. (PV Magazine)Sungrow completed what Renewable Energy Magazine calls the world's first large-scale grid-forming battery validation, passing 14 unique fault and blackout scenarios. (Renewable Energy Magazine)Sydney-based Smart Commercial Energy is developing an 18 MW solar and 40 MWh battery microgrid for Nauru, the smallest island nation in the world. The project replaces diesel generation in a location where microgrid electricity costs an estimated $0.40 per kilowatt hour. (PV Magazine)Africa's telecom sector is moving away from diesel at scale, with one company spending hundreds of millions in Kenya alone. Solar and battery payback periods for cell tower conversions run approximately two years. (My Panhandle)China's Ming Yang secured a $14.1 billion deal to develop 2.8 GW of solar and 5.5 GW of wind in Ethiopia, alongside wind turbine and transmission gear manufacturing and green ammonia production. (PV Tech)Gotion unveiled a 5 MW, 18.8 MWh enclosed battery energy storage system, first shown at SNEC 2025. John notes this is larger than any containerized battery he had tracked previously, with BYD previously holding the record at 16 to 18 MWh. (PV Magazine)John Weaver previewed his own 1.8 MW rooftop solar project in Massachusetts, structured as an alternative on-bill credit agreement with Eversource for a fixed 20-year contract. (BSKY)Solar professionals, project developers, and clean energy investors will find this episode directly useful. The topics Tim and John cover, from US manufacturing quality to grid-forming battery validation to Africa's energy buildout, reflect decisions the industry is making right now. The Strait of Hormuz situation adds urgency to the energy transition conversation, and this episode puts all of it in context. Support the showConnect with Tim Clean Power Hour Clean Power Hour on YouTubeTim on TwitterTim on LinkedIn Email tim@cleanpowerhour.com Review Clean Power Hour on Apple PodcastsThe Clean Power Hour is produced by the Clean Power Consulting Group and created by Tim Montague. Contact us by email: CleanPowerHour@gmail.comCorporate sponsors who share our mission to speed the energy transition are invited to check out https://www.cleanpowerhour.com/support/The Clean Power Hour is brought to you by CPS America, maker of North America’s number one 3-phase string inverter, with over 6GW shipped in the US. With a focus on commercial and utility-scale solar and energy storage, the company partners with customers to provide unparalleled performance and service. The CPS America product lineup includes 3-phase string inverters from 25kW to 275kW, exceptional data communication and controls, and energy storage solutions designed for seamless integration with CPS America systems. Learn more at www.chintpowersystems.com
    Show More Show Less
    46 mins
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