In intelligent power demand side management (energy efficiency of things embedded network system includes: intelligence) meter, dc, intelligent electric outlet and user terminal power management unit. Mainly for 1, resolving contradictions between the supply and demand is the effective means to ensure the safe operation of the power of 2, the strong measures and promote sustainable development of important ways. Improving terminal power efficiency, optimize the allocation of resources, improve and protect the environment, to realize the minimum cost power service.