The current state-of-art video coding standard, the High Efficiency Video Coding (HEVC), brings many innovations as a way to improve the coding performance. However, the improvement on performance also brought higher computational effort and energy consumption. Since most of devices that handle digital videos are battery powered, the energy consumption became an important issue that demands efficient solutions. This way, controlling energy consumption is strongly desirable to adapt the encoding process to the energy availability. This goal is a hard task due the heterogeneous dynamic behavior of HEVC encoder. This work presents the development of a Pareto-based dynamic energy controller for the HEVC encoder, reaching up to 70% energy saving with small losses on coding efficiency for most of the cases.