PerformanceUp to date · Jan 15, 2026
Wiring Loss
Energy lost as heat in the electrical cables connecting solar panels to the inverter and from the inverter to the electrical panel. Typically 1-3% depending on wire gauge and run length.
Why It Matters
Using appropriately sized wire (thicker gauge for longer runs) minimizes wiring losses. This is especially important for ground-mount systems with long cable runs.
Related Terms
Balance of System (BOS)
All solar system components beyond the panels themselves: inverter, racking, wiring, monitoring, electrical panel upgrades, and installation labor.
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.