Kohler is positioning Power Reserve as the ideal accompaniment to a solar system, and we've seen with other products just how much that combination can make sense. Excess power generated during the daytime can be banked and used at night, for example. It'll work both with new and existing solar panel setups, and is designed to be platform-agnostic and work with just about any brand. However, even those without solar might still be interested. Power Reserve can also work with the regular electricity grid: for example, it could be set to charge up automatically when off-peak power pricing is low, and then use that energy for the home when the grid switches to more expensive rates. It could also be used as a battery backup during grid outages.