Transformer scarcity as security chokepoint

High‑voltage grid operation depends on a small number of bespoke, 200–400 ton large power transformers that take 2–4 years to build, require special transport (Schnabel railcars) and are functionally non‑interchangeable. That combination makes replacement after damage (from solar storms, physical sabotage, or aging) slow and expensive, turning individual transformer failures into long‑duration, regional outages. — Policymakers and utilities should treat transformer production, stockpiling, and transport capacity as strategic national‑security infrastructure rather than routine maintenance items.