At most the power will go out for quite some time
Geomagnetic disturbances (GMDs) occur when Earth is subjected to changes in the energized particle streams emitted by the Sun. The solar events that cause major GMD events are coronal mass ejections (CMEs), which are eruptions of charged particle plasma from the Sun's corona that can bombard the Earth within as little as 14 hours. Near the Earth's surface, these changes induce currents, known as geomagnetically induced currents (GICs), in long electrical conductor systems such as electric power transmission and distribution lines, communication lines, rail lines, and pipelines. GMDs can have significant negative impacts on the electric grid, including electrical and electronic equipment and systems (e.g., high-frequency radio communications, global navigation satellite systems, long-haul telecommunications/internet exchange carrier lines).
In November 2014, the National Science and Technology Council within the Executive Branch formed the interagency Space Weather Operations, Research, and Mitigation Task Force (SWORM) to enhance national preparedness for space weather impacts. SWORM developed a National Space Weather Strategy and accompanying National Space Weather Action Plan* which laid out specific actions that the task force could take to enhance the nation's resilience against severe space weather events. Goal 4 of the National Space Weather Action Plan called for the U.S to "Improve Assessment, Modeling, and Prediction of Impacts on Critical Infrastructure" and more specifically for the U.S.
Department of Energy (DOE) to "develop plans to provide monitoring and data collection systems."
This document is responsive to that direction.
High voltage bulk power transformers, including generator step-up and major substation step-down transformers, are critical assets within the grid, because of their large area of impact, cost, and time to replace. For these systems, the GIC effects of GMDs can include:
- Harmonic currents that can cause relays to trip equipment;
- Fringing magnetic fields (i.e., flux outside the core) that can create heating in the transformer, which, if sufficiently high and of long duration, can lead to overheating and reduction of a transformer's life;
- Increased reactive power consumption that can cause the system to collapse due to voltage instability; and
- Damage and upset of customer equipment due to power quality disturbances.
Tldr
If your powerlines are underground you should be straight, if not you might be out of power for quite some time,due to the replacement of those transformers on the transmission lines. Expect a higher bill as well until its all fixed, IF it happens.
If you in texas you gotta hold that cuz yall dont want to be bothered with the rest of the interconnection
(ercot) and it pays nicely for those that are transmission, generator owners fuel solar and wind and any other utility companies down there