To the OP:
If you choose to file a claim with your homeowner's insurance, please:
1. Document when the last time someone was in the house before the event.
2. Document when the first person returned to the house and how they discovered the loss.
3. Prepare to answer questions about any past electrical issues in the house and any electrical work done in the house.
4. Document everything which isn't working and the exact symptoms observed.
5. If possible, document when and where each item with issues was purchased (online receipts are your friend here).
6. If you have some of the items repaired or replaced before the claim is filed and the adjuster inspects the residence, keep very detailed records and be sure to keep the damaged items.
Your claim may receive "special attention" depending on how large the loss is (and some other factors which I am not going to go into). In which case, an electrician, an HVAC tech, and/or a forensic electrical engineer may be hired to investigate the loss. Be cooperative. If it's an engineer, he usually isn't an insurance company employee and he really just wants to figure out what happened, since he has no financial stake in the answer (he's not going to be paid to repair anything). Having said that, he will usually not tell you what his findings are since that is confidential to his client (the insurance company). Instead, you will need to get a report from your adjuster.
Also, nothing usually happens fast. This could take weeks (or months) to be settled.
I am not a lawyer and this is not legal advice. Please take whatever actions you think are necessary. This is the Internet, do what you think is right, not what some online busybody recommends...