There’s nothing like the approach of a possible hurricane, such as this season's first named storm, Tropical Storm Arthur, to get everyone in its expected path thinking about generators. But for some prospective buyers, the noise and the quality of power that a portable generator supplies is a turn-off. That’s where an inverter model comes in. Using new technology, inverter generators deliver cleaner power and are typically quieter, lighter, and more energy efficient. But as Consumer Reports is learning in its ongoing generator tests, not every inverter generator is worth the 100-to-200-percent premium you’ll pay over the usual cost of...
