GRID → CHIP

How electricity flows from the utility grid down to a chip

From 415 V AC to 800 V DC — and toward 1500 V DC

Every watt a chip consumes starts as high-voltage AC at a power plant hundreds of miles away. Traditional 415 V AC distribution runs through seven conversions before the chip sees 12 V. NVIDIA's emerging 800 V DC architecture (targeted for 1 MW racks from 2027) collapses the transformer, UPS, and rack AC→DC into a single medium-voltage rectifier. Industry partners like Flex are already sketching a further jump to 1500 V DC — the upper limit of the “low-voltage” class under NEC Article 690 and IEC 62477-1, already common in utility-scale solar and rail — to feed the multi-megawatt racks that come after.

Traditional — 415 V AC

Multi-stage AC distribution

Standard data-center distribution (480 V in US)
Stages
7
End-to-end
~83%
↓Transition↓
Emerging — 800 V DC

Single-conversion DC distribution

Next-generation high-density racks
Stages
6
End-to-end
~87%
↓Beyond 1 MW racks↓
Exploratory — 1500 V DC

Ultra-high-voltage DC for multi-MW racks

Under evaluation at Flex, OCP working groups
Stages
6
End-to-end
~88%
Traditional (415 V AC)
~83%
7 stages · up to ~200 kW per rack
→ +4 pts · -45% Cu
Emerging (800 V DC)
~87%
6 stages · 1 MW racks from 2027
→ +1 pt · -50% more Cu
Future (1500 V DC)
~88%
6 stages · multi-MW racks, exploratory