Enphase was the first company to commercialize microinverters on a wide scale. A complete Enphase System includes the microinverter with trunk cables, the  energy communications unit Envoy Communications Gateway (energy communications unit) which transfers information to the web and can be accessed through the web-based Enphase Enlighten monitoring service. This system helps to keep track of the productivity of your PV system and, due to module-level analysis, can expedite troubleshooting.