Four-layer smart grid architecture for Villa Olimpica, Galapa integrates residential AMI meters, solar panels, EV charging, and environmental sensors with MQTT, DNP3, and IEC 61850 protocols across RF Mesh, LoRaWAN, and GPON backbone networks. Field devices communicate through a secure DMZ control layer running SCADA, EMS, DMS, and demand response systems with IEC 62351 cybersecurity enforcement. Edge computing fog nodes and a Data Concentrator Unit aggregate telemetry before transmission to cloud analytics platforms for real-time monitoring, demand prediction, and community energy management. This architecture demonstrates best practices for resilient, standards-compliant microgrids serving distributed residential loads with renewable generation and storage. Fork and customize this diagram on Diagrams.so to model your own utility-scale or community energy projects with multi-protocol interoperability.