I'm in the process of setting up a rooftop solar system using a Solark 15k inverter and some budget-friendly Eco-worthy 14kWh batteries. My goal is to keep things straightforward and cost-effective, so I'm trying to steer clear of microinverters and optimizers if I can. I'd love to hear your thoughts on whether this setup is a good choice for a residential project. Are there any reasons I should reconsider using just the string inverter? And if I do need microinverters or optimizers for compatibility with the Solark 15k, which ones would you recommend? I prefer optimizers since I'd like to maintain a DC-coupled system.
3 Answers
Considering how affordable 400W panels are these days, unless your roof layout is complex or has a lot of shading, it might be more beneficial to stick with a string inverter and invest in more panels than to complicate things with microinverters or optimizers. Just remember to group all similar panels together on the same string to optimize performance.
Don't forget about rapid shutdown compliance! Even if you opt for just a string inverter, you'll likely need a safety feature that's installed behind the panels, so keep that in mind during your planning.
Going with a string inverter can definitely work if you meet certain conditions. It's ideal if you have a straightforward roof with plenty of sun without shading. This setup can also be cheaper with battery storage, and it's easier to expand later. However, if you want a 'set it and forget it' approach or if your roof isn’t optimal (lots of angles or shading), it might not be your best bet. Also, keep in mind that such systems need to meet local codes concerning battery placement—typically they need to be outside or in a garage and fit certain safety certifications. I'd suggest considering alternatives like EG4 or Ruixu batteries since the Eco-worthy units might not be up to code.
I hear you! You could probably get your solar panels and inverter set up initially and then tackle the battery installation later. Just ensure everything is compliant when you do. It'll save you some hassle with permits.