> Wind and solar over production can be stored in superconducting loops ... Superconducting loops are definitely not the storage technology that will economica

> Wind and solar over production can be stored in superconducting loops ... Superconducting loops are definitely not the storage technology that will economically scale far enough to store weeks worth of energy usage of the attached electrical grid. But weeks worth of storage (of energy, not necessarily electricity) is exactly what is needed to enable a stable grid based upon 100 % renewable electricity generation.