Bloom Energy discloses scandium oxide supply chain strategy, says it can support 25 GW of annual fuel cell production

Bloom Energy says it’s the world’s largest consumer of scandium oxide — and on July 7, it published a detailed account of how it actually gets the stuff.

The company’s technical explainer reveals that scandium oxide, a trace dopant inside every Bloom solid-oxide fuel cell, comes almost entirely from the waste streams of titanium, nickel, cobalt, bauxite, and uranium processing—not from dedicated mining. That supply chain, Bloom says, is now diversified across multiple suppliers and countries and capable of supporting up to 25 GW of annual fuel cell production.

Bloom Energy details scandium oxide’s role and supply chain

On July 7, 2026, Bloom Energy published a blog post laying out — in unusual detail — how scandium oxide functions inside its fuel cells and how the company locks down a reliable supply. The post positions Bloom as the world’s largest consumer of scandium oxide and states that its current supply chain can support up to 25 GW of annual production capacity. For a company that typically keeps its sourcing strategies close to the chest, that’s a significant disclosure.

Added in small quantities, it improves the electrolyte’s ability to conduct oxygen ions—the fundamental mechanism that makes a solid-oxide fuel cell work.

The timing is deliberate. Critical minerals have moved to the center of geopolitical and economic competition, and companies dependent on specialty materials face growing pressure to prove supply chain resilience. Bloom’s publication reads partly as a technical explainer, partly as a strategic statement.

Why scandium oxide is used in fuel cells

At the core of every Bloom fuel cell is an ultra-thin ceramic electrolyte—roughly the thickness of a human hair—made primarily from zirconium oxide. That base material is widely available; more than 1.2 million metric tons are processed globally each year, with high-purity material concentrated in Japan and the United States.

Scandium oxide enters the picture as a dopant. Added in small quantities, it improves the electrolyte’s ability to conduct oxygen ions—the fundamental mechanism that makes a solid-oxide fuel cell work. Better ion conductivity means better efficiency. Simple as that.

The practical payoff is real. A higher-performing electrolyte means fewer fuel cell layers are needed to generate the same electrical output, cutting material use and improving overall performance. Bloom describes the quantity involved as comparable to “a sprinkle of salt on your dinner”—a small addition with a meaningful engineering return.

How Bloom recovers scandium oxide from industrial waste streams

Scandium is actually more abundant in Earth’s crust than lead. The challenge isn’t total availability — it’s concentration. Because scandium rarely exists in deposits rich enough to justify dedicated mining, economic recovery has historically been the limiting factor, not the element itself.

Bloom’s answer was to look somewhere other than the ground. The company developed proprietary processes to extract scandium oxide from the waste tailings and process streams of existing titanium, nickel, cobalt, and uranium operations — industries that routinely handle scandium-bearing minerals and then discard what’s left.

Titanium processing offers the clearest illustration of the scale involved. Roughly 10 million metric tons of titanium ore are processed globally each year, most of it to produce titanium dioxide for products like white paint. Those operations generate waste streams containing recoverable scandium oxide—several hundred tons annually, by Bloom’s estimate. Crucially, more than half of global titanium processing happens outside China, with significant operations in Canada, Australia, North America, and Europe. That geographic spread means Bloom’s feedstock base is diversified by default.

Supply chain diversification and competitive implications

Bloom sources scandium oxide from multiple suppliers across multiple countries. No single supplier or nation controls its supply—a structure the company describes as intentional, built over many years through proprietary processes and long-standing relationships.

The company is explicit about what it won’t say. Supplier identities, sourcing volumes, and procurement strategies are kept confidential across its vendor base. That opacity is itself part of the strategy: protecting supply chain resilience means not advertising its architecture.

Bloom frames this diversification as a competitive advantage that extends beyond the fuel cell itself. The blog post also states plainly that the company plans to expand its scandium oxide supply chain beyond the current 25 GW threshold—treating supply chain engineering as an ongoing capability rather than a solved problem.

Background: Critical minerals and solid-oxide fuel cell technology

Solid-oxide fuel cells generate electricity by passing oxygen ions through a ceramic electrolyte, where they react with hydrogen or methane to produce power with lower emissions than combustion. The ceramic electrolyte is the performance-critical component, which is why the choice of dopant matters so much.

Scandium’s dispersed distribution has historically limited commercial recovery to byproduct streams, even though the element itself isn’t genuinely scarce. Bloom has been working on this problem for more than 25 years and positions both materials science and supply chain engineering as core parts of its technology platform—not support functions, but sources of competitive differentiation.

The key takeaways from Bloom’s disclosure are straightforward: scandium oxide is used in tiny quantities but delivers an outsized performance gain. Supply comes almost entirely from industrial byproduct recovery, and that supply is spread across multiple countries and suppliers. And the current infrastructure, Bloom says, can support 25 GW of annual fuel cell production — with plans to go further.

Kelly Lippke

Kelly is an experienced writer with 15 years of experience exploring the big stories that shape our world, from tech breakthroughs and space exploration to climate, energy, and the fascinating quirks of science. She has a talent for turning complex ideas into sharp, memorable insights that stay with readers long after they’ve finished reading.