In Boydton, Virginia, one farmhouse was electrified in the most limited way possible: with a single light bulb. The monthly cost stayed modest, but the household's daily routine was still hard. Per The Conversation, what looks like a cheap energy bill can actually reflect a home that lacks the power needed for safe, comfortable living. Here's what to know In the late 1940s, a rural electric cooperative connected the home of the author's grandmot…