EnergyStar is a program started by the EPA back in the late 80s or early 90s as it became obvious that electronics were sucking up more and more of the resources of the power grid, which in turn resulted in more pollution as more power was generated. Typically EnergyStar-certified devices have sleep and/or low-power modes. Most computer monitors since the mid-90s have been EnergyStar compliant. Although its origin was a move to protect the environment, the power-saver features are usually marketed to consumers as cost-savings.

EnergyStar should not be confused with the Swedish MPRII magnetic field emission standards which are an orthogonal set of requirements that most manufacturers also comply with.