we have daily power outages, mostly I rely on backup generator that kicks in 30 sec after an outage. if that fails a UPS (Still have to hook it up!!!) will maintain crucial equipment (one return pump, skimmer, one heater, a flow pump) for a couple of days. I also have a DIY batery pack that works for Vortech or Tunze that kicks in automatically, the good thing about it is that in case of a total balckout I can always hook it up to the car battery and run the car for 10-15 min to recharge it every day or so. Never had to use any of those luckily and my tanks haven't suffered any losses related to power over the last 15 years with me being a frequent traveler!!!Of course had some crazy phone calls from the wife when power went off at midnight and backup generator didn't kick in and had to have service come at 1AM in the morning a few times but its all part of the challenge of the hobby.