Beard Papa’s, Emack & Bolio’s, and other NYC retailers are using these plug-in batteries to slash power costs

Startup David Energy is providing plug-in batteries free to New York City businesses so they can save on energy costs and ease demand on the grid.

In the basement of an Emack & Bolio’s ice cream shop in Midtown Manhattan, six batteries—each about the size of a toaster oven stood on its side—are plugged into the wall, connected right to the breaker box.