One of the best solutions is adding a distribution panel that routes power from the battery to various components or secondary switch panels. These are available from a number of brands, including BEP ...

This AC line is then bussed out to the circuit breakers. Each breaker controls one outlet on the rear panel. As devices are switched on or off the current draw can be measured.

Connectors designed for high voltage DC use are being adopted for AC distribution, prompting Anderson Power Products to produce a version of its Safe-D-Grid connector for single-phase AC applications.