The deal and what it is actually for
Vantage Data Centers has signed an agreement with Heron Power for more than 1GW of Heron Link power converters, a commitment that supports Vantage's broader plan to deploy 800 volt DC racks across its hyperscale portfolio. The shift to 800VDC architecture is itself notable: it is the power distribution standard increasingly favored for the highest-density AI racks, because it reduces conversion losses compared to the traditional AC-to-DC stepdown chains most data centers were built around. Vantage VP Curtis Aubry said customers need a faster and more efficient way to deploy increasingly power-dense and flexible AI infrastructure, framing this as a direct response to what hyperscale and AI tenants are now demanding.
This is a supply deal, not a technology trial. More than 1GW of converter capacity is a serious commitment to a specific vendor's hardware roadmap, and it signals that Vantage sees 800VDC, and Heron's approach to delivering it, as mature enough to build real infrastructure plans around rather than something to pilot cautiously at small scale first. For an operator managing a hyperscale portfolio, locking in gigawatt-scale converter supply ahead of actual deployment is a way to secure manufacturing slots before competing operators crowd the same supply chain.
Why solid-state transformers matter at this scale
Heron Link's headline figure is efficiency: more than 98.5 percent when converting medium voltage power down to 800VDC. That sounds like a small improvement in percentage terms, but at gigawatt scale, even fractional efficiency gains translate into meaningful reductions in wasted power and heat, both of which carry direct cost and cooling implications across a hyperscale campus. Traditional transformer-based conversion chains lose more energy at each stepdown stage, and those losses compound as AI racks pull more power per unit of floor space than previous generations of IT equipment.
Solid-state transformers also tend to be more compact and modular than traditional equivalents, which matters for data center operators trying to fit more power delivery capacity into existing or planned building footprints without expanding the physical electrical infrastructure proportionally. Heron's converters are built around a 5MW modular design, which allows operators like Vantage to scale power delivery in discrete, predictable increments rather than committing to oversized fixed infrastructure that may not match actual rack-level demand as it evolves over a campus's build-out.
Heron's manufacturing bet
Heron Power, founded by former Tesla executive Drew Baglino, is building a factory in Morgan Hill, California designed to produce up to 10,000 Heron Links per year, equivalent to 40GW of annual output. That is an enormous manufacturing target for a company that only closed a $140 million Series B round in 2026, bringing its total funding to $183 million. Scaling from a funded startup to a facility capable of 40GW of annual converter output is a significant execution challenge, and the gap between funding raised and manufacturing capacity promised is the kind of thing enterprise buyers relying on this supply chain should watch closely.
Heron is not betting everything on Vantage alone. The company signed a June letter of intent with Crusoe to supply converters for the Stargate campus in Texas, meaning its near-term manufacturing capacity is already being allocated across at least two major hyperscale-adjacent customers. That is a healthy sign of demand validation for Heron's technology, but it also means any manufacturing delay or quality issue at the Morgan Hill factory would ripple across multiple operators' build-out timelines simultaneously, not just Vantage's.
Why the money behind Heron matters here
A $140 million Series B, on top of earlier rounds that bring Heron's total funding to $183 million, is a reasonable amount of capital for building out specialized power electronics manufacturing, but it is modest relative to the scale of the orders now stacking up against it. Vantage's deal alone is for more than 1GW of converters, and the Crusoe letter of intent adds further demand on top of that, against a single factory still ramping toward its 40GW annual target. Investors backing Heron are effectively underwriting the same execution risk that Vantage and Crusoe are taking on operationally.
That funding level also shapes how much runway Heron has to work through manufacturing problems if the Morgan Hill ramp does not go smoothly. A better-capitalized competitor facing the same technical challenge could absorb delays more easily. Heron's backers and customers are both betting that the company's technology lead on efficiency is large enough to justify moving forward despite a funding base that is thin relative to the gigawatt-scale commitments already on its books.
The concentration risk this creates for hyperscale operators
Vantage and Crusoe relying on the same relatively young, single-factory supplier for a critical piece of power infrastructure is a textbook vendor concentration risk, even though Heron's technology appears to be ahead of established competitors on efficiency. A single Morgan Hill factory producing up to 40GW annually is a lot of capacity on paper, but a single-site manufacturing base has no built-in redundancy if there is a production disruption, a quality control issue, or simply slower-than-planned ramp to full output. Operators committing gigawatt-scale orders against that single factory are accepting a real execution risk alongside the efficiency benefits.
For any enterprise evaluating a colocation or cloud provider that depends on next-generation power conversion hardware like Heron's, it is worth asking how much of that provider's AI capacity roadmap depends on a single, young supplier reaching full manufacturing scale on schedule. A 98.5 percent efficiency improvement is valuable, but it only shows up in a usable data center if the hardware actually ships in the volumes and timelines the operator is planning around, and that remains unproven at the scale Vantage and Crusoe are both now counting on.
