Why ditching aluminum is key to securing the US solar supply chain
Jun 13, 2024
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Exploring the shift from Chinese aluminum to domestic recycled steel in the US solar industry and the benefits it brings, such as corrosion resistance and reduced weight. Discussing the vulnerabilities of China's dominance in solar manufacturing and the need to diversify supply sources. Highlighting the advantages of steel frames in solar products for enhanced supply chain resilience, technical performance, and environmental sustainability. Delving into the focus on low embodied emissions products in the solar supply chain and the policy implications of Europe's carbon border adjustment tax. Lastly, discussing the impacts of the Biden administration tariffs on the solar industry supply chains and the importance of transitioning to more resilient and diversified supply chains.
44:06
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Quick takeaways
Transitioning to steel frames from aluminum in solar technology enhances resilience and reduces embodied emissions.
Local manufacturing of steel frames supports domestic production and clean energy policies, aligning with reducing carbon footprints.
Replacing aluminum frames with recycled steel improves structural support, reduces costs, and mitigates supply chain risks in solar technology.
Deep dives
The Advancements in Solar Technology
Solar technology has rapidly advanced, with solar becoming the fastest-growing electricity-generating technology in history. The manufacturing capacity of photovoltaic (PV) has surpassed a terawatt this year due to continuous cost reductions in production. Despite this progress, the cost and performance of frames in PV modules have remained relatively unchanged, comprising a significant portion of module costs.
Challenges with Aluminum Frames
The reliance on aluminum frames poses risks due to supply chain disruptions and geopolitical tensions affecting aluminum prices. The increased shipping costs and supply chain uncertainties have highlighted the vulnerability of relying on imported aluminum frames for solar technology.
Transition to Recycled Steel Frames
Origami Solar, led by Greg Patterson and MJ Shao, aims to replace aluminum frames with recycled steel. The shift to steel frames offers benefits such as better corrosion resistance, potential cost savings, and reduced embodied emissions, aligning with the industry's focus on decarbonizing solar products.
Value Proposition of Steel Frames
Transitioning to steel frames allows for de-risking the supply chain, enhancing technical performance, and reducing embodied emissions significantly compared to aluminum frames. The steel frames offer improved structural support under varying weather conditions, addressing the industry's need for reliability and resilience in the face of policy uncertainties and trade tensions.
Domestic Manufacturing and Policy Impact
Local manufacturing of steel frames supports domestic production and aligns with policies promoting clean energy. The integration of recycled steel frames into solar systems not only increases domestic content but also addresses policy objectives related to embodied emissions. The push for steel frames reflects a broader trend in the industry towards enhancing supply chain security and reducing carbon footprints.
Solar is the fastest growing electricity-generating technology in history. That rapid scaling was a result of squeezing cost reductions out of every step of production. But there's one critical piece that hasn't changed much: frames.
Aluminum frames now make up one-quarter of the cost of a PV module. And that metal mostly comes from China, a country that controls nearly 60% of the world’s smelting.
Since passage of the Inflation Reduction Act, companies have built or planned 155 gigawatts of production capacity for modules, cells, wafers, and power electronics in the US. But up until now, frames have been overlooked.
So what would it take to replace foreign-sourced aluminum with US-made recycled steel – and why does it matter?
This week, we feature a conversation with Gregg Patterson, the CEO of Origami Solar, and MJ Shiao, the VP of supply chain and manufacturing at the American Clean Power Association.
This conversation isn’t just about frames – it's a story about geopolitics, trade, the complexities of manufacturing, and the urgency of improving the reliability of solar.
This event was recorded live as part of Latitude Media’s Frontier Forum series, in partnership with Origami Solar. You can watch the full conversation here.
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