Imagine a traditional power transformer as a simple pipe that moves electricity. This project turns that pipe into a smart valve that can control flow and handle the unpredictable nature of wind and solar power. It uses a special plant-based oil to keep things cool and safe, allowing the system to handle much higher voltages without breaking.
Conventional transformers cannot actively support the grid or handle the volatility of renewable energy. Current solid-state alternatives are limited to low-voltage applications (up to 15 kV), hindering their use in main transmission grids.
A high-voltage SST system featuring bio-based dielectric fluids, SiC-based modules with bidirectional power transfer, and a decentralized control converter.
If you are a grid operator dealing with unstable power flows from renewables — this project developed a high-voltage solid-state transformer that optimizes power flows and introduces digitalization. It aims to reach transmission grid voltage levels with 98.5% efficiency.
If you are a manufacturer dealing with the limitations of traditional oil-based insulation — this project developed a bio-based dielectric fluid that achieves up to 50% CO2 savings. This allows for higher insulation voltage in a more sustainable package.
If you are a developer dealing with low-voltage restrictions in current smart transformer prototypes — this project developed SiC-based modules that increase individual voltage up to 1.5 kV. This enables larger scale renewable penetration into the distribution grid.
Based on available project data, specific pricing is not provided, but the project aims to make the devices cost-optimized compared to existing prototypes.
Yes, the project uses a decentralized control cascade H-bridge converter specifically to scale-up the number of modules to achieve transmission grid voltage levels.
Based on available project data, licensing terms are not specified, but the project involves 3 industrial partners who may hold or manage the resulting IP.
It integrates by replacing or augmenting conventional transformers with solid-state versions that provide active system support and digitalization.
The project runs until 2026-02-28, with current validation happening at TRL 4 in test-beds.
The consortium is heavily weighted toward industrial application, with a 50% industry ratio (3 out of 6 partners). This suggests a strong focus on commercial viability, supported by 2 research centers and 1 other entity across 4 European countries (ES, EL, IT, PT).
Contact Fundacion Circe in Spain for technical specifications on bio-based fluids and SST modules.
Contact us to connect with the SSTAR consortium for TRL 4 validation data.
