SolarEdge Technologies Inc. published a whitepaper that offers a vendor-agnostic protection and grounding framework for 800-V DC systems, setting out the functions, evidence, and validation needed for safe, reliable 800-V DC deployment. It was co-developed with NVIDIA and released for industry review as part of SolarEdge’s recent announcement that its medium-voltage to 800-V DC conversion stage of its DC powertrain for AI data centers is now operating under load.

The paper, which builds on NVIDIA 800-V DC architecture work, separates common protection and grounding requirements from the design choices of any one implementation and evaluates grounding options and the criteria for selecting the grounding impedance. It also describes a zone-based protection approach: Fault location with continuous operation in the restricted facility zone and immediate interruption at the rack interface where personnel work.

NVIDIA supports an open, multi-vendor 800-V DC ecosystem and encourages multiple conversion topologies, grounding configuration, or protection technology. The SolarEdge architecture presented in the paper is one candidate implementation, offered to advance engineering discussion and validation. High-resistance midpoint grounding, solid-state transformers, and solid-state circuit breakers are candidate approaches rather than universal requirements.