I recently undertook a project to optimize the energy usage in my kitchen, and I wanted to share my experience and some tips that might help others. My kitchen uses a two-phase power supply, and I wanted to monitor and manage the energy consumption more effectively. Here’s how I approached it:
Project Background
I installed two Shelly PLUS PM Mini devices to monitor the energy usage on each phase. To get a comprehensive view, I combined these sensors into a single entity using the Shelly Helper app. This allowed me to track the total energy consumption in one place. I then added this combined sensor to my energy dashboard in Home Assistant.
Challenges Faced
Initially, I encountered some issues. The dashboard gave me two warnings: one about an unexpected device class and another about a missing ‘last_reset’ attribute. After some research and trial and error, I realized that the problem was related to how the sensor data was being processed. The Shelly devices were providing measurements, but the integration with the energy dashboard required some adjustments.
Solution
To resolve this, I adjusted the configuration of the combined sensor to ensure it met the expected device class requirements. I also made sure that the ‘last_reset’ attribute was properly handled, which involved tweaking the sensor setup in Home Assistant. After these changes, the energy dashboard started working as intended, providing me with accurate and real-time energy usage data.
Results and Benefits
This setup has been incredibly beneficial. I can now monitor my kitchen’s energy consumption in detail, which has helped me identify areas where I can reduce energy usage. For example, I noticed that certain appliances were consuming more energy than expected during off-peak hours, which prompted me to adjust their usage schedules.
Tips for Others
If you’re looking to integrate multiple sensors or devices into your energy monitoring setup, here are a few tips:
- Understand Your Device Classes: Make sure you know the device classes expected by your platform. This can often be found in the documentation or community forums.
- Use Combination Sensors Wisely: Combining sensors can be a great way to get a holistic view, but ensure that the resulting entity meets all the requirements of the platform you’re integrating with.
- Regularly Check Attributes: Attributes like ‘last_reset’ are crucial for accurate measurements. Regularly verify that these are being handled correctly.
- Community Support: Don’t hesitate to reach out to the community for help. Forums like this one are invaluable for troubleshooting and getting advice.
Overall, this project has been a great learning experience, and I’m thrilled with how it’s improved my energy management. If anyone has questions or needs help with similar setups, feel free to ask! Happy tinkering! 