Thinking about "Earth Hour" Activity and the Relation with Power Network Operation

"Earth Hour" is an activity to enhance citizens' realization for energy saving,but it may cause somewhat impacts on power network.In this paper the motive,objectives and development of "Earth Hour" are introduced.Then,based on the actual situation of power networks in China,effects and practical significance of this activity are analyzed objectively from the aspects of energy saving,generator unit characteristics and safety operation of power network etc.Finally,suggestions on how to take part in "Earth Hour" activity,how to act in daily life and how to develop our power network are proposed.