The Morphology of Energy Labels

In theory, ratings are a simple way to communicate the energy footprint of a building, car, or product. A rating can inform a range of decisions: which product to buy, how to change usage behavior, or how to improve a technology you already have. A visual representation of a rating has more of an impact than just reading a number or letter. There are numerous options for how a rating can look, and its design should follow from the message it wants to send.