Units called power centers are available to simplify hooking up the various components of your energy system. They can include, all in one enclosure and pre-wired: your charge controller, circuit breakers, fuses, PV array and battery disconnects, shunts and meters. A good power center will also include easy connection points for your battery, inverter and PV connection cables. Talk to your local supplier about recommended power stations for your area, ones that have already met the local zoning requirements and electrical and building codes.