When the inverter manufacturers at home and abroad into China for business and medium-sized power plant market price when shopping, day energy policy-makers to determine the domestic market will be Germany and other developed countries, in order to develop civilian rooftop PV projects mainly in the domestic market ; and relying on the Corporation's power thirty years R & D experience and from 2005 began to study household photovoltaic sine wave invertertechnology, painstaking research and development in the Chinese domestic market for PV inverters, after years of exploration, the day energy TSA series has finally breeds success.

More than 97% conversion efficiency is greatly improved the city's rooftops Cuntucunjin efficient utilization of solar energy; stylish appearance, easy installation and suitable for mobile structure designed to allow Chinese residents to use the water heater as easy to use as energy photovoltaic inverter day device; 3KW-5KW power segment specifically for Chinese residents tailored electricity and roof area.

June 15, Xinyu City, Jiangxi Province, Jiangxi Province, Rexchip response "10000 rooftop photovoltaic demonstration project implementation plan", after domestic inverter lot of product performance and price comparison, and ultimately selected day energy TSA3KTL-S and TSA5KTL-S series, the first day energy photovoltaic inverters gridtiepowerinverteronline have been shipped before installation went Xinyu City, tune, run. This project is expected to be among the first to benefit from "10000 rooftop photovoltaic demonstration project implementation plan" policy Jiangxi household rooftop PV projects.