This paper presents the architecture of a pilot network designed to test and disseminate smart control technologies for managing renewable energy plants. Leveraging the Internet of Things paradigm, the network enables remote monitoring, control, and optimized energy utilization. We propose an open, flexible, and inexpensive architecture that accommodates diverse use-cases through a hierarchical structure. A centralized cloud-based layer manages and supervises the network, while a simplified communication protocol facilitates interaction with various field units. Containerization technology ensures modular service delivery, independent of peripheral hardware. Beyond its practical applications, the system serves educational purposes. As part of the European GREATER project, it will function as a learning platform for students from participating universities. By providing hands-on experience with photovoltaic and smart control technologies in real-world settings, the system aims to foster a deeper understanding of green energy and promote environmental awareness within target communities.