According to Polaris Market Research, the global market size for 800 VDC data center power architectures was $16.24 billion in 2025 and is projected to reach $59.76 billion by 2034, with a compound annual growth rate of 15.6% from 2026 to 2034. As AI rack power consumption exceeds the capacity of AC power delivery, operators are transitioning to higher-voltage DC systems to reduce conversion steps, copper usage, and energy losses.
Rising AI power demand is driving the transition to 800 VDC
Rack power density continues to rise, making low-voltage power distribution increasingly impractical in AI data centers. NVIDIA states that in Kyber racks, a 54 VDC power shelf may occupy up to 64U of space. In August 2026, Google, Microsoft, and NVIDIA, along with more than 80 Open Compute Project (OCP) companies, announced plans to standardize the 800 VDC (800V DC) specification. NVIDIA’s MGX 800 VDC rack is expected to launch in the second half of 2026, followed by the Kyber rack in 2027.
This transition will occur in four phases: AC rack power, 800 VDC sidecar, hybrid systems, and native 800 VDC. According to Polaris Market Research, the majority of market spending in 2025 will still be based on AC solutions. Sidecar systems are expected to generate early 800 VDC revenue by enabling existing facilities to adopt the technology incrementally. Native 800 VDC revenue is anticipated to begin emerging around 2029.
Brownfield redevelopment offers early opportunities
In 2025, brownfield and retrofit deployments accounted for 58.36% of the market. Operators can add sidecar power racks to existing facilities without replacing the entire power infrastructure, enabling them to scale AI computing capacity while minimizing disruption to current operations.
Polaris Market Research invites readers to request a free sample of the 800 VDC data center power architecture market report to learn about market forecasts, technology trends, and competitive dynamics.
Key growth drivers include:
- Higher power demands from AI servers and high-density racks.
- Lower distribution losses and reduced copper requirements.
- More compact and efficient solid-state transformers.
- Supports sidecar power racks for upgrading existing data centers.
Segmentation and Regional Outlook
Polaris segments the data center power architecture market by power supply architecture phase, deployment type, conversion system, and region.
- By deployment type: Brownfield upgrades lead in 2025 with a 58.36% share. Greenfield AI campuses, however, can be built from day one with native 800 VDC designs, avoiding the costs of retrofitting AC infrastructure.
- Conversion from medium voltage to 800 VDC: The report compares solid-state transformer (SST) systems with medium-voltage rectifier systems. SSTs can convert grid power to 800 VDC in fewer stages, with lower losses and a smaller footprint.
- Downstream conversion stages: The conversion from 800 VDC to 50/54 V leads the market, projected to reach $4.18 billion by 2034, driven by high-density AI server power supplies. The report also covers conversions from 800 VDC to 12/6 V, 50/54 V to 12/6 V, and sub-1 V point-of-load and regulator modules powering GPUs. These stages are increasingly reliant on silicon carbide and gallium nitride compound semiconductor devices.
- By region: North America leads in 2025 at $6.22 billion. The Asia-Pacific region is expected to grow at the fastest CAGR of 16.7%, followed by the Middle East and Africa at 16.4% and Europe at 15.0%.
Market challenges
This transition faces challenges related to safety standards for 600 to 1000 VDC systems and DC arc flash hazards. Equipment certification is still evolving, and competing ±400 VDC designs add further complexity. Existing facilities may also require high-cost upgrades to DC-rated protection and AI data center switchgear, as well as converters, wiring, and backup power systems.
Recent Industry Developments
- September 29, 2026: Infineon partners with Eaton to supply silicon carbide devices for Eaton’s MVSST 2.0 platform.
- September 21, 2026: ABB launches the Infinitus DC portfolio for AI data centers.
- September 2026: Exascale Labs signs a letter of intent with Compal to develop a native 800 VDC platform using solid-state transformers.
- February 2026: Heron Power completes a $140 million Series B funding round.
Analyst Opinion
Apurva Agarwal, Senior Analyst at Polaris Market Research, said: "The transition to 800 VDC will not happen overnight. Most operators will initially deploy sidecar racks in existing data centers, as that’s where AI computing power is needed most immediately. The suppliers that will ultimately prevail are those whose equipment can support every stage—from today’s AC sites all the way to fully native DC facilities."
Main market participants
The Polaris Market Research report lists the following key companies in the 800 VDC data center power architecture market:
- ABB Ltd.
- Delta Electronics, Inc.
- Eaton Corporation plc
- Hitachi Energy Ltd.
- Infineon Technologies AG
- Navitas Semiconductor Corporation token issuance
- Schneider Electric SE
- Siemens AG
- Texas Instruments Incorporated
- Vertiv Holdings Co.
Related research: The data center power market report examines the broader power equipment market supporting the expansion of AI data centers.
About Polaris Market Research
Polaris Market Research is a global market research and consulting firm that has published over 5,000 reports covering more than 20 industry sectors. The company provides market insights, industry forecasts, competitive analysis, and strategic research to help businesses, investors, and decision-makers understand market dynamics, evaluate emerging trends, and identify growth opportunities.
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