This paper introduces the specific implementation of a household distributed energy resource system based on a bottom-up energy Internet architecture. The entire system is divided into five layers, which, from the bottom to the top, are the hardware circuit layer, the logical algorithm layer, the communication network layer, the digital intelligence integration layer, and the user value layer, forming a local area energy network as well as an universal node for the wide area Energy Internet. The function and principle of each layer, together with how they interact with each other, are presented in detail. An integrated energy system for household application scenarios could be constructed with the step-by-step guidance provided in this paper.