Changzhou Xidian Transformer

Built World

Delivered world's largest smart transformer December 2024

In August 2023, wind turbines in China's far west nearly crashed the entire national grid. Low-frequency oscillations from poorly integrated wind farms in Xinjiang threatened a blackout across the world's most populous country. Twenty-eight months later, the crisis has intensified: curtailment rates nearly doubled in early 2025—solar waste jumped from 3% to 5.7%, wind from 3.9% to 6.6%—as record installations overwhelmed transmission capacity. Tibet now throws away one-third of its renewable electricity. China's answer: a 750 million volt-ampere AI-controlled smart transformer and over $83 billion in annual grid investment, racing to stabilize a system buckling under its own clean energy success.

Updated Dec 27, 2025