I’ve been exploring ways to optimize my home’s energy consumption using smart devices and renewable energy sources. One of the most exciting projects I’ve undertaken is integrating my Shelly devices with my photovoltaic (PV) system. The goal is to automate the use of household appliances when the PV system is producing excess energy, thereby reducing reliance on the grid and lowering energy costs.
My setup involves using two Shelly EM units—one to monitor the PV system’s production and another to track the net energy consumption. This allows me to create scenes that trigger specific appliances to turn on when the PV system is generating more than a certain threshold, and the net consumption is within a predefined range. For example, if the PV system is producing over 500W and the net consumption is below -500W, I have a scene that turns on a heater in the bathroom. Similarly, I’ve set up other scenes for different appliances based on varying thresholds of PV production and net consumption.
While the initial setup was straightforward, I encountered a few challenges along the way. One issue was ensuring that the scenes were triggered correctly and that the devices responded as expected. I had to tweak the thresholds and timing to avoid any unintended behavior, such as devices turning on when they shouldn’t or not responding at all. However, with some trial and error, I managed to refine the system to work seamlessly.
This project has not only helped me save on energy costs but has also given me a greater sense of control over my home’s energy usage. It’s incredibly satisfying to see the appliances kick in automatically when the PV system is in full swing, knowing that I’m making the most of the renewable energy I generate.
If anyone has similar projects or tips on optimizing energy usage with smart devices, I’d love to hear about them! Let’s share our experiences and continue improving our smart homes together.