Depending on the magnitude of the storm, having enough advance notice would be enough. On a larger scale, turning off satellites, dialing down the amount of ele

Depending on the magnitude of the storm, having enough advance notice would be enough. On a larger scale, turning off satellites, dialing down the amount of electricity distributed over the powerlines to allow headroom for that excess caused by the storm, having a lot of spares on standby, etc. On a smaller scale, individual readiness where possible (backup power generation, supplies, alternate telecommunication means, etc.). But there's a point beyond which there's no avoiding catastrophic issues - electricity and telecommunications down for extended periods of time, plus the myriad of side effects. As far as I know we have no feasible way today to completely mitigate the effects of a storm similar in scale to the 1859 one. A strong enough solar storm can induce currents able to simply melt the transmission lines (especially low resistance ones - ultra high voltage, 1000+kV) possibly causing fires along the way, destroy transformers, and more. There will always be a storm that surpasses the GIC tolerance on most or all transformers. Pipelines and any other type of cable of significant length would also be seriously affected.