Enphase Energy

U.S.-MANUFACTURED SOLID-STATE TRANSFORMER China produces some 60 percent of the world's power transformers. The US imports $4 billion annually. Last week, @POTUS invoked the Defense Production Act and directed @ENERGY to expand domestic transformer manufacturing. President Trump called America's capacity to produce that equipment "dangerously limited." He's right. Conventional iron and copper transformers are built for a one-way grid. They enable cascading failures. And they cannot properly contend with the dynamism of AI datacenters, which are quite likely to dominate new load additions for some time. The reason the grid – and the economy – is at an impasse is not that we cannot generate enough energy. It's that we cannot move it cost-effectively. This week @Enphase revealed a breakthrough for the world — the IQ Solid-State Transformer. Starting with AI data centers, the IQ Solid-State Transformer takes 34.5kV from the grid and delivers 800V DC directly to AI compute racks — collapsing a legacy five-stage power chain into one conversion. The sidecar battery rack bolted alongside every compute rack today — the PSU, BBU, CBU — can be reduced or eliminated entirely. Less power infrastructure. More space for GPUs. More tokens. More revenue. For data center operators and AI companies, IQ SST's benefits drop straight to EPS. The numbers on the Enphase IQ SST: ⚡ 98.5% efficiency ⏱️ Intrinsic sub-millisecond response — no battery buffer required 🔁 >250 kHz switching — custom Kestrel 22nm ASIC + bidirectional GaN 🔩 342 modules per unit, built-in redundancy, no single point of failure ✅ Five-nines availability — hot-swap without shutdown 🇺🇸 US manufacturing — Arlington TX + Columbia SC, high-volume manufacturing 🔬 ~90M inverter units deployed across 165 countries — nine generations of this architecture already in the field and shipping electrons But what is most important is this: the U.S. needs to be able to rapidly increase its power density. Not just at data centers, but everywhere on the grid. Passives on the grid generate heat, threaten cascading failures, and are not variable. Production capacity is mostly in adversarial nations. And legacy SST designs, borrowed from academic papers, cannot respond at sub-millisecond speeds. IQ SST can. The reason why is Kestrel — a 5th-generation custom 22nm ASIC developed across nine generations of silicon, paired with bidirectional GaN switches already proven in Enphase's IQ9 (already produced in the many-millions). Single-stage power conversion. Sub-millisecond response. Semiconductor-based and software-defined. The core of what we do @HNVRcap, from my first job in Silicon Valley working on low-power analog/digital microcontrollers, to our investments across infra, sim, apps, and power is about the convergence of power and computing. IQ SST is the foundation for achieving a grid that scales the way silicon scales, not the way steel does. And is driven by custom processors that have done billions upon billions of hours in the field. This is a semiconductor company's answer to a problem we've treated as mechanical for a hundred years. The grid's missing link – the Enphase IQ SST.