1. A configuration method for implementing energy efficiency control in a device, comprising the following computer implemented steps: receiving, in a graphical user interface in response to one or more user queries, indications of user preferences regarding energy efficiency operation of said device; converting, using a software module, said received indications of user preferences into energy efficiency control parameters, said energy efficiency control parameters including one or more thresholds and/or timers that control transitions between a plurality of energy savings states of said device; and configuring an energy efficiency control policy of said device with said energy efficiency control parameters.