Assuming your remote workers’ do not get too cold, they can continue to work at home during short power outages.
You can encourage them to buy, or even issue them, a small uninterruptable power supply UPS for their Internet router. Laptops have built-in battery power. If a worker has a desktop computer or other networking equipment, those devices need to be on a battery backup.
If you are comparing unit run times, watts are usually a better comparison than VA. A 500W UPS, around one hundred dollars, will probably run an Internet router for between one and two hours. You can ask your IT Pro if you want more details and find out their favorite brand name.
Please forward this to your friends who might benefit. We wish you warmth, health, and safety!