together with all necessary Fuses, cables and Busbars. The fully functioning cabinet is designed to work like this: 5.1kWp solar modules feed both the Fronius Inverter and the SmartSolar MPPT. Four AC powered fans mounted in the cabinet-roof provide ventilation and control internal temperature. Excess PV power can be used for water heating using 48V DC immersion heaters. The 48V-100A Smart BatteryProtect will turn the water heating elements on/off, so there’s no risk of melting relay contacts. The cabinet is fitted with RGB LED downlighting. A Wi-Fi enabled controller operates the LED strips – and a neat enhancement is that it is possible to change lighting colours according to system conditions (State of Charge; warnings and alarms, etc.) via Node-RED.