Solid-state transformers
Solid-state transformers need protection equipment that works with them, as well as efficient conversion. In September Infineon and SolarEdge added fast solid-state fault isolation to a proposed high-voltage direct-current link from the grid to computing racks. This is a development programme, with no broad commercial revenue yet and no fixed date for utility grids to adopt it.
Research snapshot · updated Nov 12, 2026
EV fast-charger + data center power chains drive most commercial SST volume
Tesla V4 Supercharger + ABB Terra DC + IONITY HPC + Electrify America Hyper deployments rely on an SST-class DC backbone for high-power efficiency. The bigger pull is the AI data-centre 800 VDC shift: NVIDIAs 800 VDC rack architecture tied to the 2027 Rubin/Kyber rollout is drawing SST products (TI architecture March 2026, Enphase IQ SST, DG Matrix Interport, Heron Link). These are real commercial deployments scaling through 2027. Grid applications remain pilots.
State of the art (2026)
Most current activity in solid-state transformers is aimed at power for AI data centres. Nvidia plans to move its racks to 800-volt DC distribution. It expects a compatible 800-volt power rack in the second half of 2026 and a power unit that serves a whole row of racks in 2027. These are Nvidia's plans, and 800-volt DC can be supplied by more than one kind of converter. In September 2026 Infineon and SolarEdge said they are adding fast solid-state fault protection to a proposed high-voltage DC path from the grid to the racks. That is a development programme. Wolfspeed, a major supplier of silicon carbide, came out of Chapter 11 in September 2025 with much less debt. Use on the utility grid is still at pilot scale.
Wolfspeed SiC supply continuity de-risked after Chapter 11 exit
Wolfspeed – the largest pure-play SiC substrate supplier and a key SST input – emerged from a prepackaged Chapter 11 on 29 September 2025, cutting roughly 70 per cent of debt (about $4.6bn) and pushing maturities to 2030. The acute 2025–2026 supply-continuity fear that hung over SST and EV-charger supply chains has eased, though SiC pricing and 200mm Mohawk Valley yield remain the variables that set SST cost economics.
Grid-edge SST stays pilot until cost compression below $2,000 per MVA
SST $3,000-5,000 per MVA in 2024-2025 vs iron-core ~$1,500 per MVA. Without 50% cost compression by 2028-2030, grid-edge MV/LV deployment stays pilot-scale. EPRI Solid State Transformer Initiative + DOE GMI Phase 2 + PG&E/Duke/Xcel pilots maintain technology readiness but not commercial deployment.
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Signal stack
Evidence stacked leading → lagging
9 signals
Signal stack
Evidence stacked leading → lagging
Technology-native KPIs
Metrics that predict trajectory, tracked over time
4 tracked
Technology-native KPIs
Metrics that predict trajectory, tracked over time
Landscape map
Who builds what, and who depends on whom
80 players · 6 layers
Landscape map
Who builds what, and who depends on whom
Catalyst calendar
Dated events that will move the position
6 ahead
Catalyst calendar
Dated events that will move the position
Technology roadmap
Milestones on the path to maturity
8 milestones
Technology roadmap
Milestones on the path to maturity
Watchlists
Companies, people and papers, each with a condition for removing it
19 · 20
Watchlists
Companies, people and papers, each with a condition for removing it
Decision frameworks
What our view means for your job
Locked
Decision frameworks
What our view means for your job
Thesis changelog
When our view changed, and why
9 updates
Thesis changelog
When our view changed, and why
Change our mind
5 disconfirming conditions
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The full signal stack, technology-native KPIs tracked over time, the landscape of who depends on whom, the dated catalyst calendar, decision frameworks for every desk, live watchlists and a record of every time our view on Solid-state transformers has changed. All of it is in CanaryIQ.