I'm looking to create a DIY solar setup after winning some money, and I've got a few initial plans. I've found reasonably priced solar panels and have a family electrician ready to install a hybrid inverter in my home. A roofer will help with mounting the panels. As I'm diving deeper into this project, I have specific questions:
1. Are micro or string inverters essential, or can I connect the solar panels directly to the hybrid inverter?
2. Should I choose separate charge controllers and inverters, or is an all-in-one system more efficient?
3. For a desired capacity of 10 kW, is it better to get a single 10 kW inverter or use two 5 kW inverters? Any insights would be appreciated!
3 Answers
Since you have no shading, connecting the panels directly to a string inverter is usually the way to go. I started with a grid-tied inverter, too, and it worked great without batteries, especially with reliable power. Regarding the inverter size, consider that a single larger inverter can be better for managing efficiency. You might want to check with your electrician about the trade-offs between two smaller inverters and one larger one. It's all about balancing complexity and flexibility!
If you don't have any shading on your panels, just run the DC from the panels straight to the charge controller. It's pretty straightforward!
Typically, all-in-one systems are cheaper and simpler to install. It's smart to look for one that can accommodate batteries, even if you don't use them right away — it gives you options later! As for your inverter question, I'd recommend going with one 10 kW inverter. It's easier to manage, especially if you're not worried about resilience, and it keeps the wiring simpler.
Good to know! I don't have any trees blocking the southern side of my house, so that sounds perfect.