Researchers from CSIC and the Universidad Autónoma de Barcelona have successfully tested the world’s most powerful electricity distribution cable, which is capable of carrying up to five times more energy than current systems.

The prototype, financed by Endesa, is over 50% more efficient, which means it not only saves energy but also permits a significant cut in CO2 emissions because of the high proportion of fossil fuels that is used in electricity generation.

This new cable employs the highest level of current used until now, 3,200 amperes compared to today’s 600, and its transport capacity is equal to that of six to eight conventional subterranean cables of similar size. This higher density will reduce the environmental impact of electrical cables and save urban space thanks to the reduction in size requirements.

The director of the project, Xavier Obradors of the Institute of Materials Science of Barcelona (ICMAB), points out that “with the new superconductor systems the electrical system will be safer, more efficient and cleaner, because the transformers will be fire-resistant and use current limiters in order to avoid a chain disconnection of transformers and generators.”

The CSIC, Universidad Autónoma de Barcelona, LABEIN Tecnalia, Nexans and Endesa all participated in the research and development of the prototype.

The use of superconductor technology is not just limited to cables, but can also be applied to transformers, motors, magnetic and mechanical storage devices and current limiters.