Hey everyone! I'm looking to install solar panels on my new home and need some advice. I plan to use 24 Canadian Solar 450W panels (model CS6.1-54TM-450) and was considering the Enphase IQ8+ inverters, with 12 panels per inverter line. However, I've noticed that the compatibility chart mentions CS6.1-54TM-450H for compatibility. I also came across a package that pairs the CS6.1-54TM-450 panels with the IQ8HC inverters, but they are about $60 more per inverter. I'd really appreciate your thoughts and any guidance on this setup!
2 Answers
If shading isn’t a concern, you might want to reconsider the Enphase setup. I’m grid-tied and run 34 440W panels through a single Growatt inverter without any issues. Honestly, installers usually mentioned Enphase but then offered more cost-effective string inverter options. Just something to think about!
Before diving in, I’d suggest considering a few details. Where are you located? What direction does your roof face? Any shading issues? Also, are you thinking of adding batteries? Generally, Enphase recommends a 1.2 to 1.4 DC/AC ratio. For the IQ8+ inverter, you're looking at a 1.55 ratio, while the IQ8HC is better with a 1.18 ratio, so it seems more balanced. You might also want to look at the IQ8A inverter, which offers a 1.29 ratio. Check out the Enphase site for more info!
Thanks for the insights, TexSun1968! I had no idea about the inverter/panel ratio. I can fit all 24 panels on my roof without shading, and I selected the IQ8+ because they support 12 inverters per branch. Just trying to weigh my options since I can also go with fewer panels and the IQ8A.