I bought a 5.5KW for Hurricane Ivan, ran it for about 3 weeks. Fast forward to 2018, I took it to a friend in the Marianna, FL area that was affected by Hurricane Michael. He ran his well for his house and livestock for over a month before power was restored. Having one around is good insurance. Fortunately, I now have one for my house that runs off natural gas and starts automatically any time the power is out.