I'm upgrading my solar system with a Deye 8kW hybrid inverter and 51.2V LiFePO4 batteries. I want to run Solar Assistant but I'm not sure whether to use my spare Raspberry Pi 3B+ or the Zero 2 W. I have two 3B+ models and one Zero 2 W. I'm considering options like UPS hats with 18650 cells, a POE hat for the 3B+, and whether to go LAN or WLAN with the Zero using a microUSB adapter. I'm also cautious about using the 9-60V DC USB power supply from Solar Assistant since it might not meet local regulations due to government rebates linked to this installation. What do you guys think? Should I just go with the 3B+ since I have extras?
4 Answers
Just use a phone charger on the AC side for power, that's what I do for my Raspberry Pi. Both models will work in terms of compatibility—it's just about performance difference. I've found that the 3B+ has better headroom for running multiple tasks smoothly. Check out this link for reference on supported hardware: [Supported Hardware](https://solar-assistant.io/help/getting-started/supported-hardware). My Home Assistant setup looks way cooler too!
If the software is cloud-based, go for the 3B+. If it's local, the Zero 2 W would do just fine. I had issues with the Zero when trying to stream, but for basic tasks, it should hold up well.
Yep, it’s local, so I think the Zero 2 W should work! Thanks for the heads up.
Honestly, I don't think the government will care how you power your Pi since it's just a gadget for data. The important stuff is how the overall system is set up. If you're just pulling data, you should be fine with either option!
I hear you! I was worried about that power supply too since it connects directly to battery terminals. I'd rather avoid any complications with regulations.
In cases like this, it’s usually best to just have the Pi plugged into the emergency sockets near the inverter to keep everyone happy if tech support needs to troubleshoot anything after installation. It works seamlessly that way!
Looks nice! Yeah, I'm running HAOS on my setup too and I'll probably just stick with the 3B+ for that extra performance.