Energy and the grid · Built and demonstrated
Magnetic energy storage
Current parked in a loop and handed back in milliseconds, for power quality.
Superconductors in magnetic energy storage
A charged superconducting loop holds energy as current and hands it back as fast as the power electronics can switch, with no chemistry in the path and effectively no cycle limit. For power quality, where the job is to ride through a voltage sag lasting a few cycles, that response beats anything electrochemical. The energy density is poor, so the application is short and deep rather than long and shallow, and it was always going to be a niche defined by response time.
What is stopping magnetic energy storage
Energy per dollar. A coil storing a useful number of megajoules is a large magnet with large forces on it and a refrigerator beside it, and it has spent the last two decades competing against batteries whose cost fell by an order of magnitude. This one has been outrun by its competition rather than stopped by its physics.
What a better material would change for magnetic energy storage
Smaller and cheaper is the whole requirement, and it would take a conductor that held the same energy in less coil. That would put this back in the conversation, except that the bar moved while it was away. It now has to beat lithium on installed cost rather than on response time, and it has never been close to that.
Conductors used in magnetic energy storage
Near magnetic energy storage, in energy and the grid
SuperMatics is a platform infrastructure company for superconducting devices: software that finds the material and the process, lab work that makes and measures it, and pilot manufacturing with industrial partners.If you are working on something in this field and a material is what stands in the way, tell us about it.