800V/1500V Power Architectures 2026

Scope

Depth analysis

• System
• Module

Technology

• 800V / 1,500 V power architecture
• HV semiconductor
• Discrete vs Module
• Si – SiC – GaN
• Data center: SST, sidecar, PSU

Market

Through all power segments, there is a common trend to adopt 800 V/1,500 V architecture to increase efficiency & power density. A special focus for data center as it shifts to 800 V DC triggering a full redesign of data center power architectures (SST, PSU, UPS, HV IBC)

Players

Complexity now sits in design, not voltage: semiconductor players move upstream, selling design-win positions inside the architect's reference platform. Converters converge on modular blocks — integrators buy modules and compete on integration, much of it in China.

Technology

800 V/1,500 V power architecture is expanding through automotive, PV, BESS, DC charging and now AI data centers: densification and efficiency are the objectives, high voltage and WBG the enablers. Discretes now reach 100 kW converter modules. For high power and high frequency application, the bottleneck is no longer the semiconductor but the passives such as film DC-links, transformers and nanocrystalline cores.

Report's Objectives

System voltage is rising everywhere power is converted. Data centers are converging on 800 V DC racks fed by solid-state transformers (SST) and high-voltage intermediate bus converters (HV IBC), while EV charging, photovoltaics, battery storage, rail and industrial drives move toward 1,000 V and 1,500 V. Yole Group has released this report, 800/1,500V Power Architecture 2026, to provide deep insights into the power architectures and its impact on the adoption of wide-bandgap devices, market forecasts and supply chain behind this shift.

The report’s main objectives are as follows:

A two-speed market: mature at 1,500 V, accelerating at 800 V

High voltage is playing a growing role across electrification. PV inverters and rail have run at 1,500 V for years, but they are mature and grow slowly. The momentum has shifted to DC fast charging, battery energy storage system (BESS), data center and electric vehicles. At the same time, entirely new converter categories are appearing where nothing exists commercially today — solid-state transformers, high-voltage intermediate bus converters and megawatt-class charging — and they will account for the fastest growth of the decade. 

 

Who captures the value at 800 V? AI and EV now compete for the same voltage class

The move to 800 V and 1,500 V is changing who creates value along the power chain. Complexity now sits in design rather than in voltage itself, so semiconductor players are pulled upstream — selling design-win positions inside the architect's reference platform rather than components into a specification. Converters, meanwhile, converge on modular building blocks in charging, industrial, storage and UPS, so integrators buy modules and compete on integration — a shift that has moved much of the manufacturing base to China. Adoption and engagement are not the same thing: vertically integrated adopters such as rail depend least on external suppliers, while storage, PV and DC charging behave as commodity markets served through distribution. SiC and GaN power devices supply is now pulled by two very different customers — AI data centers, which order in short cycles, pay for power density and refresh hardware every couple of years, and automotive, which qualifies parts over years. A faster-than-expected ramp in data center demand could redirect some capacity away from EV programs, lengthening lead times and increasing semiconductors prices.

AI demands breakthrough technologies and topologies — the transition has started

Two trends drive the market — densification and efficiency — and they rest on two interlocked enablers, high voltage and wide bandgap, since WBG's benefits become more visible at higher voltage. The system-voltage climb is now common across applications: BEVs went 400 V → 800 V with BYD deploying a 1,000 V since Q3-2025, utility PV and BESS are repeating the 1,000 → 1,500 V playbook with 2,000 V already in pilot, and AI data centers are abandoning 48 V distribution for a single-step 35 kV/13.8 kV AC to 800 V DC chain. For such a high power density and efficiency requirement, voltage sets the device class: above 1.2 kV, IGBT and SiC MOSFET dominate the market. 1,500 V systems use 2,300 V devices. GaN, for its turn, owns the 800 V IBC primary with silicon competing on the 12 V secondary. Discrete devices are now being pushed to power levels once reserved for power modules reaching 100 kW charger modules. Same modular approach targeting 120-140 kW can be used for SST where 1,200 V parts dominate the first generation. The main challenge in SST is the HF transformer and the passives, not the semiconductor. Above 800 V film capacitor takes the DC-link. Planar transformers and nanocrystalline cores become the density enabler in the passive's components side.

About the author

Glossary

Report Objectives

Companies cited

Three-page summary

Executive summary

Context

Market forecasts

• 2026-2031 global converter market forecast ($M)
  • Split by application
• 2026-2031 Power converter market forecast in $M and MUnits
  • Automotive & Mobility (xEV, Rail)
  • Industrial: Industrial Motor Drives, UPS, PV, BESS, EV DC charger
  • Data center : SST - PSU - HV IBC

Market trends

• Data center
  • Data center: opportunities for all the technologies & all players
• Automotive & Mobility
  • EV market: 400V vs 800V vs 1000V
  • Railway voltage game?
• Industrial
  • PV segment, beyond 1500V
  • BESS vs UPS: to coexist, toward DC UPS
  • Megawatt charging: reality check
  • SST: the common system potentially in all the above
  • 800/1,500V adoption as of 2026

Supply chain analysis

• How is 800V/1500V architecture reshaping the supply chain?
• EV and AI now drive most semiconductor players focus
• China is leader in power converter
• Supply chain: Main Merger & acquisition
• Supply chain by applications: Transportation
• Why is converter module price falling and China is the winner?
• DC charger business impacted by CPO
• 1,200 V power device: demand vs capacity?
• Why modular is the perfect approach during market acceleration
• Solid state transformer supply chain: Any startup to be acquired?
• Suppliers of Power Supply Unit (PSU) for data centers
• Many HV IBC references Design: who will be the winner?

Technology trends

• Main technology trends in converters: Why systems are moving above 800 V
• System voltage evolution and its impact on device technology
• Toward a Higher System Voltage in many applications
• PV, BESS: beyond 1,500V? A matter of time
• Data center: The Four generations ahead
• Why 800V is a must have for scale-up?
• From 48V to SST: the sidecar as the necessary evil
• Sidecar: ±400 V favors 650 V devices while 800 V drives the 1,200 V
• Power electronics devices: Frequency VS Voltage
• Domino effect for single stage topology
• HV IBC benchmarking
• HV IBC: voltage vs power, where are WBG
• Back to discrete From module device in dc charger module?
• Why PV industry are less eager to WBG?
• Power shelf to off-rack PSU (sidecar)
• Definition: What is a Solid-State transformer?
  • Voltage
  • Power
  • Topology
  • Devices needed
  • Bottleneck and roadmap of subsystem
• 1 MW rack and 1 MW charging station
• Magnetics & capacitors Trends
  • film capacitor: higher share is expected with higher voltage
  • Planar transformer is another key enabler for high density.

Outlook

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