The power is reliable here too but we still have a 5kw generator. We have some storms occasionally that can take out the power for a few days at a time. It can power the lights and a major appliance (fridge, dryer, ac). My grandpa has a 10kw one and it can power their whole house and his shop as well (either welder or air compressor). An 8kw to 10kw should be big enough for your needs.