One of our readers, Derek from Software Advice, sent me this link to an article regarding the benefits of energy management systems for apartment dwellers.  I am providing the link as a follow up to an article I posted a while back regarding Google PowerMeter.  I think the article is informative and emphasizes the point that the real savings of money and energy consumption with these devices comes from the user having access to actionable data.  The device and tracking system arms the consumer with information which hopefully motivates the consumer to make changes and reap the rewards.  I think it is a concept which appeals not only the thrifty,or the eco-aware individuals,  but also to the competitive, goal oriented personalities.  It is worth looking into.