Internet of Energy: A Design to Manage Energy Consumption for Off-Grid Building

This article offers an Internet of thing (IoT) based energy management system, that provide an automation concept and completely control the consumed energy by observing the delivered power from a limited and/or unreliable power sources. An example for such sources are photovoltaic and wind renewable energy where the supplied power depends on the weather conditions which make it fluctuated and unreliable. The proposed system offers a complete solution to reduce the consumed power based on the available power with less affecting on the quality of life. This article presents a cloud computing master unit that communicates with all the building devices via WIFI network nodes. These nodes are responsible for calculating the consumed energy by each connected device and deliver this information to the cloud. The system enables the user to schedule the devices’ levels of priority in a list, priority list. The master controller unit calculates the available power based on instantaneous supplied power from the source, stored energy, weather prediction, and priority list, then make a decision to keep all the devices powered on or shut down some of them for a while according to the list.