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China State Grid is a state-owned electric utility corporation that operates and maintains the power grid in China.
10 sources A May 2026 audit found fewer than 10 commercially deployed SSTs in global revenue service, while dozens of announced projects remain years from deployment.
Index of ~100 MGRID articles published May 2026 covering SST origins, manufacturers, deployments, federal programs, technology foundations, and applications.
4 sources Conventional iron-core transformer warranties: 5-10 years winding/core, insurance premium 0.1-0.3% insured value/year. SST warranties 2026: 2-5 years on converter modules + DC-link caps; 10+ years on chassis +…