Print, Photographic

Photograph. Black and white photo showing a Detroit Edison employee who is pointing at the inside of an electric meter box that is mounted on a brick wall. A typewritten note attached to the verso shows "The metering equipment necessary for administering the pilot study of a residential 'time-of-day' rate structure is a clock controlled double-dial kilowatthour meter. Edison employee Laurie Choloff points to the reserve power time switch (right) and two-rate register meter mounted on an outside wall. The rate has a charge of 6 cents per kilowatthour during peak hours and 2 cents per kilowatthour during all others, a differential of 3 to 1. Peak hours are the 12 hours between 9 a.m. and 9 p.m. Mondays through Fridays. Detroit Edison, Public Affairs Department, 2000 Second Avenue, Detroit, Michigan 48226 (313) 237-8850."