Analysis of information sources in references of the Wikipedia article "خروج جرم از تاج خورشیدی" in Persian language version.
These assessments indicate that severe geomagnetic storms pose a risk for long-term outages to major portions of the North American grid. John Kappenman remarked that the analysis shows “not only the potential for large-scale blackouts but, more troubling, … the potential for permanent damage that could lead to extraordinarily long restoration times. ”