NYSE: SI 412.08 ▲ 1.84%EN · US
// Division 01 · Clean Energy

The arc reactor at utility scale.

A self-sustaining, zero-emission power module derived from palladium-substituted starkonium catalysis. Twenty years in the workshop. Now powering grids on four continents.

Stark arc-reactor civilian module
// Mk. II Specification
Output
3.2 GJ/s sustained
Footprint
1.4 m diameter
Emissions
Zero, lifecycle
Service life
70 years, projected
Fuel
Synthetic starkonium
Coverage
38 nations live

Each module ships with a regulator-grade telemetry stack and a hardware kill-switch under joint physical control of Stark Industries and the host nation's grid operator. We do not deploy without local oversight.

NYSE: SI 412.08 ▲ 1.84%Q1 FY26 revenue $74.2BAerospace backlog $128BClean-grid coverage 38 nationsMaria Stark Foundation — 2.1M scholarships awardedSentinel programme — operational readiness 99.4%NYSE: SI 412.08 ▲ 1.84%Q1 FY26 revenue $74.2BAerospace backlog $128BClean-grid coverage 38 nationsMaria Stark Foundation — 2.1M scholarships awardedSentinel programme — operational readiness 99.4%