Net Zero Buildings, June 2014. (Scroll to page 52)
http://issuu.com/constructionbusinessmedia/docs/1406nzb-r1?e=6596036/8395630#search

"Building automation systems continue to evolve, and their importance can't be overstated. As the global demand for energy rises, sustainability and energy efficiency aren't considered just good financial goals, they're becoming mandates, creating very real business challenges."