Post #2953512

@brianb@fosstodon.org it sounds like you’re doing grid-tie, so you have twoish options for your overall configuration: strings of panels in series adding up to a few hundered volts open circuit. run each of those to your inverters (in metal conduit for code compliance). this version is easier to add batteries to (get an inverter that also has battery options).one microinverter per panel, all in parallel. code compliance is easier (if your utility requires inspection by an electrician before an interconnection agreement, you’ll have more options for an electrician). if you’re putting the panels on the barn roof, and your barn roof has multiple slopes, any string of panels in series should be at the same slope. https://solarpaneltilt.com/ is a nice resource for tilt angles if you’re building a standalone rack. on a roof for grid tie it’s probably not worth worrying about the angle.