Buildings, July 2014, by Jennie Morton.
http://www.buildings.com/article-details/articleid/17610/title/battle-of-the-kilowatts.aspx

"The relationship facility managers have with tenants can be a wary one at best, fraught with skirmishes over space heaters, thermostat settings, and light levels. But with the growing impact of plug loads, building owners need to recognize that human behavior can make or break an efficiency program."