Enphase Energy Grid-Tie Microinverter System
The Enphase Microinverter system is the first commercially available microinverter system for residential and commercial solar PV applications. The Enphase Microinverter is a fully-integrated device that converts the DC output from a single solar module into grid-compliant AC power. The microinverter system is designed to maximize energy harvest, increase system reliability and dramatically simplify design, installation and system management while also improving safety.
The power from each PV module is individually tracked by a microinverter, eliminating losses caused by under performing modules in the array. Microinverters help realize the full energy potential of every PV array, reducing the power-limiting effects of shading, dust, debris, module mismatch, and thermal differences. Problems are isolated to a small fraction of the PV array, while the rest of the PV system continues to function optimally. Service is simplified to routine maintenance.
Microinverters eliminate the need for string sizing exercises that require fitting equal lengths of module strings on a roof. Each PV module is connected directly to its own microinverter and mounted on the racking underneath. The microinverter's AC wire harnesses are connected to form a continuous AC branch circuit that leads ultimately to the AC utility distribution center.
Model Selection
Enphase makes microinverters for most popular PV modules. The M190 inverters can be used with modules of up to 230 watts made with 60 to 72 cells in series. The New D380 TwinPack Microinverter is comprised of two Enphase microinverters in a single enclosure. Its innovative cabling system further reduces balance-of-system and installation costs because it’s possible to install 33% more modules per circuit with the D380. The D380 has a black anodized housing, which improves aesthetics and allows for better thermal dissipation. The D380 TwinPack is optimized for commercial applications, but is applicable to many residential installations as well.
The M210 can be used with modules of up to 240 watt with peak power voltage of 31-50 volts. This version is designed for high-efficiency modules like SunPower and SANYO.
The Enphase Microinverter is qualified to a NEMA 6 environment rating and operates at full power at temperatures from -40°C (-40°F) to 65°C (149°F), allowing applications in harsh environments. CSA Listed to UL 1741 for the U.S. and Canada. 15-year standard warranty.
