Prioritizing technical innovation as the core, SAJ masters leading technologies such as high performance frequency vector control, motion control, and high effective photovoltaic power generation & energy conserving, intelligent monitoring and shared operation & maintenance, to construct a high efficient energy environment integrating power generation, power conserving and power using, to concentrate on civil and commercial buildings service all over the site, to utilize the renewable energy utmost and most efficiently and to realize real-time and intelligent digital building energy management loop. Moreover, SAJ strives to construct a complete eSolar ecological service system based on eSolar portal, eSolar shared operation & maintenance, eSolar family photovoltaic academy and by adhering to the value of customer-oriented, to solve outstanding problems at present and promote healthy development of the photovoltaic industry.