As a homeowner passionate about sustainability, I’ve been exploring ways to optimize my energy usage through smart home automation. My journey began with integrating a Shelly 3EM to monitor my photovoltaic system and grid consumption, paired with a Shelly 1 to control my air conditioner. The goal? To ensure the air conditioner only runs when solar production is sufficient, reducing reliance on the grid and lowering my carbon footprint.
Initially, I faced some challenges in setting up the automation. The Shelly devices provided the necessary data, but translating that into actionable automation rules was a learning curve. After some research and experimentation, I discovered that using Node-RED within Home Assistant was the key to creating a seamless workflow. Here’s how it works:
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Data Collection: The Shelly 3EM continuously monitors both solar production and grid consumption. It sends real-time data to Home Assistant, which aggregates and processes the information.
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Automation Logic: Using Node-RED, I created a flow that checks the solar production every 15 minutes. If the production drops below 1.2 kWh, indicating insufficient solar energy to power the air conditioner, the system sends a signal to the Shelly 1 to cut off power to the air conditioner.
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Notifications: To stay informed, I set up notifications through the Home Assistant app. These alerts keep me updated on the system’s status and any changes in energy usage patterns.
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Energy Monitoring: Leveraging the Energy Monitoring add-on in Surety Home, I can visualize my energy consumption in real-time. This tool has been invaluable in identifying trends and optimizing my automation further.
The results have been impressive. Since implementing this setup, I’ve noticed a significant reduction in my electricity bill, and I feel more connected to my home’s energy usage. The integration of these devices has not only enhanced efficiency but also provided peace of mind knowing that my home is operating sustainably.
For anyone looking to embark on a similar project, I’d recommend starting with understanding your energy consumption patterns. Tools like the Shelly 3EM and Node-RED within Home Assistant are powerful allies in creating customized, efficient automation. It’s a rewarding process that combines technology with environmental responsibility.
If you have any questions or tips for improving this setup, I’d love to hear from you! Let’s continue to innovate and make our homes smarter and greener together.