Identifying and purchasing the most energy efficient appliances at the lowest cost takes some effort as the most energy efficient and cost effective models often vary with each model year.  Similarly, making it easier for residents to deal with the energy use and phantom plug loads of their electronics is also challenging. However, both efforts are critically important to the success of a zero energy home where appliances and electronics become the largest category of energy use – greater than the much reduced space heating and water heating energy use in these homes.