Why grid tie inverter is that investment threshold?

First is investment threshold. To seek to maximize the grid tie inverter conversion efficiency, plate is laid at the king's south, is 25 to 40 degree Angle with the ground slopes.

In this ideal condition, the common three if you want to achieve self-sufficiency, electricity, about 3000 megawatts of grid tie inverter equipment need to install. 

Based on current market conditions, the total cost of the system of about 40000 yuan, the average life of 25 years, recover the investment shall be 10 years, covers an area of 30 square meters - regardless of the economic cost or the cover, is a "threshold" for individual users.

Followed by the power inverter of the threshold.

Individual users apply for distributed power inverter projects, to provide the residential area industry authority and the adjacent "agree to install" certificate issued by the owner. 

Electric power inverter company said a staff member, many applicants "fail" on the license, "rooftop solar water heaters, some village to build a power inverter project need to move the water heater, water heater of the master didn't want to."

Moreover, distributed power inverter projects will cause certain reflection, and power inverter devices on the market almost no retail channels... 

Given the reality of Shanghai shortage of land, high-rise buildings, dense, Yang Xing said, want to large-scale promotion of distributed photovoltaic projects in the city is very difficult, " sine wave inverter  system is suitable for independent or semi-independent villa, with DaWuDing units and some universities enterprise demonstration garden area, subject to the limit of the factors such as land, large-scale promotion has the certain difficulty, in the city center to the filed of individual users are mostly in the sine wave inverter practitioners."

"Roll out", a single project quality difficult to guarantee

The overall quality of the pv project involving equipment quality, installation technology, from several aspects, such as building structure detection is very difficult to cover all of the sine wave inverter, particularly in terms of building structure, the user should ask professional third party verification agency, for example, a building roof bearing, such as wind, lightning protection effect.

Include, for example, sine wave inverter, steel, cement tank, 1000 megawatts of photovoltaic equipment need to be set up on the roof of a part of the total weight about 300 kg or more, "for example, some because of the city's appearance environment needs reformation" ping changed slope roof, not bearing, mainly ACTS as landscaping."

"Currently 6 individual users, because is the personage inside course of study, familiar with related technology, after testing, they install equipment quality is very good also.

If later spread to do, is relatively difficult to assure the quality of the individual projects." Yang Xing said.