She lives in a 4 BR single family home in a development which (in case it matters) is governed by a homeowners association. She seems to have at least one or two major power outages a year due to summer storm damage, as well as winter snow storm damage. The power outages are almost always caused by wires down in her area from falling tree limbs etc., and her area is almost always one of the last to get their power back on. When she has a power outage, it is often for several days up to a week or more. Her home is all electric -- meaning electric heat pump, electric central A/C, electric hot water, and electric stove/oven etc. None of the homes in her area have natural gas service, but she believes that there may be a natural gas line that runs along the roadway behind her house. So, one possible option may be for her to get a natural gas connection to her home from there, and she is going to ask the natural gas utility company about that.
Due to the frequency and length of the power outages, she is considering getting a back-up generator system installed. One option seems to be to get a propane generator. And, I think that it may be a good idea to have it connected by an electrician to one of those manual switch-over (cross-over?) breaker devices in the main electric panel. Then, if there was a power outage, she could do the switchover to the generator power and not be without power for days on end.
Here are a few of my questions:
1) Can anyone give a rough idea of the size (wattage) propane generator that she may need? She probably would only need some basic items powered, but I wonder what she would need if she also wanted to be able to keep the heat pump on in the winter and the central air on in the summer, plus some lighting, the refrigerator/freezer, etc.
2) How long will the various size propane tanks last before needing to be refilled? I know it depends on the tank size as well as the power rating of the generator. However, she is retired and she probably would not have the ability to lug around propane tanks to get them refilled, especially during a snow storm. So, I am guessing that some type of larger tank that could be refilled on site by a propane supply company may be a better option -- if that is a possibility.
Any general ideas, information, or suggestions would be appreciated.
I will reply back with additional info if needed.