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Markdown edition

# Envision says 800-volt DC power system is serving AI workloads

> The company describes a live installation that combines power conversion, batteries and controls at its Ulanqab campus.

By BIGCHANGE.AI Editorial

Published: 2026-11-03T17:29:38.330Z
Updated: 2026-11-03T17:29:38.330Z
Canonical: https://bigchange.ai/blog/envision-800v-dc-ai-data-center-power

![Conceptual illustration of a generic server cabinet in a data-centre aisle, with cables routed along overhead trays.](https://bigchange.ai/api/media/file/cuda-shared-compute-hero-v1.png)
AI-generated conceptual illustration by BIG CHANGE.

Envision says its 800-volt direct-current system is powering AI workloads at its Ulanqab campus in China.

## The big change

- The company reports a live installation.
- Transformers, batteries and controls operate together.
- Higher-voltage DC can reduce conversion stages in AI power distribution.

In its November 2 [announcement](https://www.prnewswire.com/news-releases/envision-achieves-worlds-first-commercial-deployment-of-integrated-800v-dc-sst-based-power-system-in-large-scale-ai-data-center-302926109.html), Envision says solid-state transformers convert 10-kilovolt input to an 800-volt DC bus. Batteries provide short-duration support and backup; a controller coordinates them with the transformers as computing demand changes.

[NVIDIA describes](https://blogs.nvidia.com/blog/800-vdc-power-architecture-ai-factory/) conventional power delivery as involving multiple conversions between alternating and direct current. Its proposed 800-volt architecture reduces conversion stages. One hybrid approach places a power rack alongside computing equipment in an existing AC facility; a facility-scale power block is a separate design for new sites.

A [Schneider Electric paper](https://www.se.com/us/en/download/document/SPD_WP213_EN/) identifies protection, grounding and energy-storage integration as design considerations. Operators evaluating these architectures must consider how electrical protection and operating arrangements fit their chosen facility; selecting a distribution voltage alone does not settle those decisions.

Envision calls the deployment a world first, without independent verification. It gives no operating capacity or measured efficiency. The campus opened in August; its 3-gigawatt capacity and up to one million accelerators are full-build plans.

[Earlier BIG CHANGE coverage](https://bigchange.ai/blog/ase-powersip-vertical-ai-processor-power-delivery) examined [ASE’s separate chip-level voltage-regulator packaging design](https://ase.aseglobal.com/press-room/ase-expands-powersip-platform-for-next-generation-ai-power-delivery/).

## Sources

- [Envision deployment announcement](https://www.prnewswire.com/news-releases/envision-achieves-worlds-first-commercial-deployment-of-integrated-800v-dc-sst-based-power-system-in-large-scale-ai-data-center-302926109.html) — Company description of the live deployment and planned campus; capacity and efficiency results are not independently verified.
- [NVIDIA 800 VDC architecture](https://blogs.nvidia.com/blog/800-vdc-power-architecture-ai-factory/) — Separate industry explanation of power conversion and alternative facility architectures.
- [Schneider Electric 800 VDC principles](https://www.se.com/us/en/download/document/SPD_WP213_EN/) — Independent supplier discussion of protection, grounding and deployment considerations.
- [ASE PowerSiP announcement](https://ase.aseglobal.com/press-room/ase-expands-powersip-platform-for-next-generation-ai-power-delivery/) — Separate chip-level power delivery design covered previously.