Quote from Kicking:
would you recommend using a back up UPS power supply ? There was a snow storm last weekend thousands of home were without electricity in France, I don't know about Switzerland. I never have power outage here except for last week when power went down for less than 10 sec. but I realized even that can have serious consequences .
Power cut are very seldom here, but I would recommend it in any case, whatever the country where you live. The only problem is they are really noisy.