The EU7000is has a maximum output of 7000 watts and can provide a continuous output of 5500 watts. This is generally sufficient to power essential appliances and systems during a power outage, such as a refrigerator, lights, a few fans, a sump pump, and some electronics. However, many houses have higher energy demands, especially if you want to power heating or cooling systems, electric water heaters, well pumps, and other heavy-duty appliances. In such cases, a generator with a larger capacity might be necessary.