Next-gen power lines that boost the grid
Agriculture & Energy
The superconducting cables could make it easier to integrate new renewables
Spotted: The net-zero transition isn’t just about clean energy generation, it’s also ensuring that this electricity can be transported where it’s needed. That means a strong and reliable grid. However, around 40 per cent of Europe’s grid infrastructure is already 40 years old, meaning it’s only got about a decade left in its lifespan and is struggling to keep up with demand. The grid needs an urgent upgrade, and SuperNode believes it can help.
Founded in 2018, the Irish startup has developed next-generation power lines, which the company claims can transmit 5-10 times more energy than is possible with existing transmission technology, enabling the grid to accommodate the growing number of green energy sources.
To enable this, SuperNode uses High Temperature Superconductor (HTS) materials, which can transmit electricity with no resistance (unlike traditional cables) when at extremely low temperatures. To keep the wires at the needed temperature, the HTS conductor is surrounded by liquid nitrogen and low-friction layers of insulation and cryostats (cold chambers).
Because of their efficiency, SuperNode’s cables can be used to transmit power over large distances, including in underwater applications to connect offshore wind farms to the grid. One cable can carry up to 10 gigawatts of power – significantly more than traditional copper cables – meaning that SuperNode’s power lines are much more space efficient. Plus, according to the company, the cables are also compatible with conventional techniques and equipment, making it quick and easy for them to be integrated into the grid.
In September, SuperNode announced the opening of its new Cable Technology Centre in Northumberland, England. The new facility will enable the company to scale production of its power lines outside of its R&D headquarters lab in Dublin. More recently, SuperNode secured €8 million in funding from existing shareholders AKER Horizons and Volnay, which will be used to further develop its technology.
Written By: Matilda Cox
31st October 2024
Email: info@supernode.energy
Website: supernode.energy