InstallationUp to date · Jan 15, 2026
Subpanel
A secondary electrical panel fed from the main panel, used to distribute circuits to a specific area (garage, workshop, addition). Solar systems and EV chargers are sometimes connected via subpanels.
Why It Matters
Adding a subpanel can be cheaper than upgrading your main panel when you only need a few new high-amperage circuits for solar or EV charging.
Related Tools
Related Terms
Panel Upgrade
Replacing a home's electrical panel with a higher-capacity one (typically 100A to 200A) to accommodate additional electric loads like solar, battery, EV charger, or heat pump.
Smart Electrical Panel
An intelligent breaker panel that provides circuit-level monitoring and control, enabling load management, backup prioritization, and integration with solar and battery systems.