So if in the case of a large Solar flare, drastically effecting the earth! what are the known issues.
firstly a large surge in the national grid that would overload the circuit and thus blow all the 'Darleks' in the sheds up (transformers and regulators, an such)
If this was the case then the loss of electricity would be the main problem, and as such all that is dependant upon it, so electric lights, heating, communications (although this has a separate circuit ) refrigeration.
so lets consider what this is likely to mean. So for the man/women in the street that after sunset all forms of natural lighting would be gone, so some form of illumination would be required to perform any extension of a days work.
Refrigeration would not happen so, how would you extend the life of any foods you have, especially meat, dairy, or fish product. these would either have to be processed to prolong storage, or used on a need to basic which would mean an adoption of a different set of eating habits. If on cold winters though the ambient low temperature would of course help to prolong the 'shelf life' of those times, the hot summers (if we do get any) would have an adverse effect.
consider your heating arrangements and how much do you rely upon them. don't get sidetracked that your heating is gas and therefore not going to be effected, sorry the gas in the main is pumped through the pipes probably using some form of electric pumps which of course no longer works. Is there an alternative that can be used safely to heat your home (I say safely, because flues that are designed to vent gas fumes are NOT suitable to vent fumes from a real fire)
The supply chain will be initially disrupted so things like bread, milk and fresh goods would be very hard come by, I would also imagine going by the usual hysteria that is accompanied by a small fully of snow in the UK, that most shops and supermarkets would be long stripped bear. so what and how do you eat until the problem is sorted.
lack of power in water treatment facilities would also mean a lack of clean fresh water, and an increase in associated diseases like cholera, in fact due to lack of general manufacturing, I would imagine a shortage of medicines would follow in a short time, with medical institutions being given the highest priority. So a simple cut or worse could turn into something a lot more problematic, so what and how would you treat these problems, say without the use of modern medical supplies.
Of course the main issue will be how fast can the initial damage be rectified, this of source would be a major consideration, as no matter how well you horde or prep, a prolonged state will have every increasing problems. these include general law and order and security, as those with not, look to those with have, with envious eyes.
Da
