The EU-funded SSTAR project presents consolidated results supporting the transition from laboratory research to industrial uptake.
The SSTAR project has released its Innovation Handbook, capturing the outcomes of its work to advance high-voltage solid-state transformer (SST) technology for next-generation power systems.
The handbook draws on the project’s technical achievements and strategic insights on promoting SSTs and on increasing their operational voltage for widespread deployment.
As power grids evolve to integrate renewable energy, electrification and digital control, conventional transformers face growing limitations. SSTAR has addressed these challenges through targeted innovation and validation activities.
Key achievements include:
- Development and validation of a 72.5 kV high-voltage SST module prototype, reaching 98.5% efficiency at nominal operation.
- Implementation of a decentralised control architecture for scalable, modular power conversion at higher voltage levels.
- Production of a biobased and biodegradable insulation fluid designed to improve fire safety and reduce environmental impact compared to conventional mineral oils.
Beyond technical outcomes, the handbook explores market opportunities, environmental performance, cost considerations and policy recommendations to support future deployment.
Download the Innovation Handbook here
Cover picture by Evgeniy Alyoshin on Unsplash