SunCast
SunCast
Nico Johnson
927: Everyone Built Modules. He Built Cells. | Alex Zhu, ES Foundry
1 hour 4 minutes Posted Apr 30, 2026 at 9:00 am.
Reshoring Solar Cell Manufacturing
Engineering Roots and Semiconductor Foundations
Early Lessons from Interning at Nvidia
Suntech and the Rise of Scale
Semiconductor Disciplines vs. Solar Cost Realities
Systemic Approaches to Global Cost Reduction
Hard Truths from Early US Manufacturing
Reviving Solar Cells at Suniva
The IRA as a Fundamental Framework
Why Everyone Chose Modules over Cells
Betting on PERC Technology and Execution
Navigating Long-Term Efficiency and Patent Wars
Raising Capital from Family Offices
Pivoting for Infrastructure and Permitting Speed
Community Impact and Local Job Creation
Quick Charge: Supply Chain Realities
A Vision for the US Hubs
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Show notes

Rebuilding solar manufacturing in the U.S. is not just about capital or policy. It is about making the right bets at the right time.

It comes down to timing, experience, and the critical decisions.

Alex Zhu has spent nearly two decades inside the global solar manufacturing system—from the early rise of Chinese production to failed U.S. factory attempts, and now to building one of the few solar cell manufacturing facilities in America through ES Foundry.

In this conversation, Alex explains why he focused on solar cells instead of modules. Module assembly scaled quickly after the IRA. Cell manufacturing remained limited, even though it sits at the center of the supply chain. But that gap is precisely where Alex recognized his greatest strength.

Experience.

But the ensuing decisions (bets) he made carry real risk.

He is betting that the U.S. cannot sustain a domestic solar industry without cell production. He is also building on proven PERC technology, even as the global market moves toward TOPCon. And he is relying on speed, execution, and hard-won experience to make that strategy work.

We also get into how his past shaped these decisions, what has changed since earlier U.S. factory failures, how the IRA shifted the economics, and what it actually takes to build a factory, from permitting and infrastructure to workforce and community impact.

Expect to learn:

🔹 Why solar cells—not modules—are the real constraint in U.S. manufacturing

🔹 How Alex’s past factory experience shaped his strategy today

🔹 Why ES Foundry chose PERC, and how he thinks about the shift to TOPCon

🔹 What family office investors understood about this opportunity

🔹 What it really takes to build—and sustain—a solar factory in the U.S.

This is a bet on how the industry gets rebuilt. Listen and decide if you agree.

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