String Design
The configuration of how solar panels are wired in series and parallel to match inverter voltage and current requirements. Proper string design maximizes production and prevents equipment damage.
Why It Matters
Mismatched strings cause lost production and can void inverter warranties. This is why professional system design matters even for DIY installations.
Related Terms
String Inverter
A central inverter that connects to multiple solar panels in series (strings). Less expensive than microinverters but less flexible.
String Sizing
The process of determining how many solar panels to connect in series per inverter string based on voltage, temperature, and inverter operating window specifications.
DC/AC Ratio
The ratio of a solar array's DC panel capacity to the inverter's AC output rating. Typical residential values range from 1.1 to 1.35.