In smart grid, residential users who participate in demand side management can schedule household energy consumption appropriately according to the real-time energy price. This paper proposes a kind of energy consumption technology based on cooperative game by considering the participation of household distributed generators. Based on the presented power consumption model, energy cost model, and household load control model, energy consumption among residential users is formulated as a cooperative game; where players are residential users and strategies are their daily consumption schedule. The energy cost of all users is minimized at Nash equilibrium solution. Simulation result shows that users’ cost is decreased and further decreased with distributed generators when users participate in energy consumption scheduling with game approach.