In this study, we proposed a power internet of things (PIOT) architecture using a power frame for power and communication, which was constructed by merely using voltage and current sensors and omitting communication modules. With this technology, the costs of constructing hardware can be decreased and the control process can be simplified. Solar energy is renewable, has low environmental impact, and is widely applied in various fields. However, it has low conversion efficiency and often requires a large amount of land and many solar panels, which increase the costs of constructing hardware and maintaining one. We proposed a concept relative to an object-oriented device (OOD) and Pu’s count technology for constructing PIOT using a power frame, wherein solar photovoltaic modules (solar power panels) in PIOT were objectified to redesign an individual module monolith, and only voltage and current sensors were used, thereby sending a power frame for charging in the traditional DC bus and building a bidirectional monitoring technology between a management module and a solar power panel monolith without adding additional communication carriers and power sources. This can decrease the cost of communication carriers. In addition, because the solar power panel was considered as a monolith whereby the number of power generation devices can be randomly reduced, PIOT was built under a flexible solar power generation system to provide a low-cost platform with automated management. The power frame transmitted data of the solar photovoltaic module, and the power frame itself also had energy, thereby allowing a management module to recognize the classification of the transmitted energy and the quantity of electricity when the management module end received the power frame, which may serve as a basis for future power trading whereby a solar power trading platform can be developed in the future. Then, a testing platform that consisted of a personal computer, Arduino Mega2560, the packaged software Matlab®, and a power supply was established to simulate the solar power generation system and verify the feasibility of the theory via simulations and experiments.