With solar flares, the Sun emits a magnetic field that interacts with Earth, affecting our grid. The grid’s transmission lines act as the conductor, moving through this magnetic field due to Earth’s rotation. While the field itself isn’t very strong, the combined length of east-west transmission lines creates significant power as the Earth turns. Shorter, non-east-west-oriented distribution lines are generally unaffected. Consumer products and microchips are unaffected. By predicting the timing and location of these power surges, we can install simple fuse-based switches and voltage filters along transmission lines, especially near costly, hard-to-replace equipment. During solar flare events, these switches can open briefly to ground the energy safely. Once the event passes, the switches close, fuses are replaced, and the grid resumes normal operation. This was figured out in the 90's and we have had dozens of events since.