Quad Box Stringer As last winter’s events in Texas demonstrated, the portable and emergency power market represents an excellent growth opportunity for independent rental operations. If you already own towed gensets in the typical 25 to 60 kW range, adding a package of cables, connectors, and accessories is an obvious way to increase per-rental income while providing a more comprehensive service to your customers. But, if you don’t speak “electrician” fluently, the industry terminology and broad range of product specifications can make assembling a practical and economical package a challenge. Fortunately, there are only a few things you really need to know and they’re not all that complicated when put in layman’s terms.