SemiAnalysis: 800VDC Architecture to Reconfigure Power Equipment Market Worth Billions

The report from industry research institution SemiAnalysis indicates that with the soaring power of GPU racks, the physical law-driven 800VDC direct current distribution transformation is reshaping the tens of billions of dollars' worth power equipment market.

The analysis forecasts that by 2030, the incremental capacity of data centers covered by this architecture will reach 39GW. The market size for the power side cabinet will peak at $11 billion in 2028, while the market size for solid-state transformers is expected to reach $13 billion by 2030.

At the heart of this transformation is the structural shift in equipment content. The share of traditional equipment such as UPS will contract significantly, while emerging categories are rapidly opening up. Although the total cost per megawatt remains essentially stable, the revenue trajectory of suppliers will be profoundly rewritten.

Physical constraints force architecture to evolve towards high voltage direct current

NVIDIA's next-generation GPU clusters will push the power per rack to 660kW, causing the existing low-voltage distribution system to face physical limits. Under traditional voltage, the weight and cost of copper materials required for high-power racks will completely exceed the boundary of engineering feasibility.

Furthermore, an excess of power hardware will侵占racks, leaving no space for computing units. At a power of 600kW, switching to 800V distribution can reduce the current by about 15 times and significantly decrease the cross-sectional area of conductors and thermal stress.

Four-stage migration path defines the roadmap

SemiAnalysis divides the technological migration into four stages, spanning from 2026 to beyond 2029. The first stage is driven by Google and Meta, with the core incremental equipment being row-level high-voltage direct current power side cabinets.

As native chips are mass-produced, the second stage's distributed backup power solutions will gradually replace centralized low-voltage UPS systems. In the third stage, distribution will move up to the facility level, with dedicated rectifiers deployed in grey spaces and AC floor PDUs exiting the main power loop.

The fourth stage is the ultimate form of the solid-state transformer, with a market size expected to reach about $13 billion by 2030. This equipment directly converts medium-voltage AC to DC, significantly improving system efficiency and reducing the overall weight and volume.

Core equipment meets structural market opportunities

The power side cabinet is the core incremental equipment for the first two stages, with the market size expected to peak at $11 billion in 2028. Multiple supplier interoperability standards have already been formed, and NVIDIA is independently developing high-power reference designs.

As the ultimate equipment, solid-state transformers are currently the most actively financed field. In the past year, related startups have raised more than $320 million in cumulative financing. Major manufacturers are accelerating product certification, and traditional giant Eaton has also entered the field through acquisition.

Many core barriers still need to be overcome by the industry

Firstly, the lag in regulatory and safety standards directly limits the rate of adoption. US-related electrical codes are expected to cover some provisions by 2029, and any deployments before that will require obtaining customized approvals for each site.

Secondly, the direct current native cooling ecosystem is not yet mature, and the complete cooling stack still highly depends on AC power supply. Due to the lack of a mature ecosystem, manufacturers such as NVIDIA still choose to keep an auxiliary AC bus in their reference architecture.

Additionally, the supply chain and standard setting are significantly lagging. The grid response behavior of new facilities is more complex than traditional architectures, which is also giving rise to brand new AI-native service providers, represented by Aran Industries.