(1) Understanding of photovoltaic supports

Photovoltaic bracket understanding is relatively simple, I will not do too much drawing.Photovoltaic supports are divided into fixed supports and tracking supports. Fixed brackets are literal. Tracking bracket, begged bracket like sunflower, flowers (solar component front) follow the sun to move.

Photovoltaic bracket begged is also relatively high:

On the one side, the photovoltaic bracket needs long-term use in specific environment, with strong wind pressure resistance, snow pressure resistance, earthquake resistance, corrosion resistance and other mechanical properties, to ensure the normal operation in sand, rain, snow, earthquake and other harsh environment, and the service life of ordinary begged to reach more than 25 years.

On the another side, photovoltaic scaffolds play an important role in the establishment of photovoltaic power stations. The production, quality and design requirements of photovoltaic supports conform to the climate environment, building code, photovoltaic power design and other specifications of the project site. Photovoltaic supports carry the main power generation body of photovoltaic power stations. The production, quality, structural design and arrangement device of photovoltaic supports directly affect the power generation efficiency, safe operation and service life of photovoltaic power stations. The selection of suitable photovoltaic bracket and scientific and reasonable design device can not only reduce the project cost, improve the efficiency of power generation, but also reduce the cost of operation and maintenance in the later stage.

(2) Technology and cost

The process of fixing bracket is mainly: mechanical design, machining and galvanizing. The tracking bracket has three more processes than the fixed bracket: electric control design, drive touch, supporting assembly. Raw material procurement and outsourcing galvanized is the main cost, the main raw material is steel; Labor, equipment depreciation and other costs accounted for a relatively low; As steel processing products, the transportation cost of photovoltaic supports is relatively high. In the tracking support, the purchase cost of rotary deceleration installation and control box accounts for about 25% of the original data cost of the tracking support.

(3) Photovoltaic bracket expansion trend

1) Huge growth space in the future: the photovoltaic industry has a bright prospect and a relatively clear driving force for expansion. Photovoltaic power generation will account for about 3.2% of the total global power generation in 2020. The penetration rate of photovoltaic power generation is still low, and there is a lot of room for improvement in the future. For this, please refer to other photovoltaic articles written by the author.

2) The trend of high efficiency of photovoltaic modules will further expand the market space of photovoltaic supports. Benefiting from technological progress from time to time, efficient battery progress from time to time, the number of module cells increases and other factors, photovoltaic modules show a trend of high-power expansion. On the one hand, the increase in the power of photovoltaic modules has a limited impact on the price of photovoltaic supports (increased power, reduced cost of generating units, and forced the price reduction of photovoltaic supports). On the other hand, elements such as high power trend of modules boost the increase of newly installed capacity of PHOTOVOLTAIC power stations, which can fully absorb the adverse impact of high power trend of modules on the unit price of photovoltaic brackets. Therefore, the high power trend of photovoltaic modules will further expand the market space of photovoltaic brackets.

3) The penetration rate of tracking brackets in China is low, and the decrease of KWH cost is conducive to the penetration of tracking brackets.

In 2016, only 1.2% of all photovoltaic projects in China were equipped with tracking supports.

There are two main reasons: first, the early tracking bracket technology is not mature, stability and reliability is not high, leading to the domestic pv power station investment owners more inclined to fix the bracket; Second, the benchmark electricity price was high at that time, and the investment return of the power station with fixed supports had reached or exceeded the expected return.

In recent years, with pv tracking stents reduced capital, firm and stability widely research, domestic subsidies continue to adjust, tracking stents become one of the important measures of progress of photovoltaic power station's earnings, to complete the system efficiency and the power utility maximization, blends and double component and the intelligent control technology, such as tracking stent application in our country also from time to time.

Although the use of tracking support will increase the initial investment and operation cost, but because of the obvious generation gain, can achieve lower KWH cost.

For pv developers in most parts of the world, the combination of double-sided modules and single-axis trackers can effectively reduce the KWH cost and is a more economical strategy.

The global homogeneity cost of pv projects with tracking supports in the first half of 2021 is approximately us $38 /MWh, significantly lower than that of pv projects with fixed supports.

The decrease of KWH cost is obviously beneficial to the penetration of tracking bracket.

In 2020, tracking brackets accounted for 18.7% of China's PV power station market. It is estimated that by 2025, the proportion of tracking stent will rise to more than 25%.

Tracking bracket is mainly suitable for centralized photovoltaic power generation. In the future, the growth of scattered photovoltaic power generation is high, but the centralized photovoltaic power generation is still the mainstream.

(4) What are the characteristics of PHOTOVOLTAIC bracket C purlins

After understanding what is solar photovoltaic bracket C purlins, let's take a look at the characteristics of photovoltaic bracket C purlins:

1) Installation system, flexible combination, with excellent versatility. The system can be installed in various ways and can be easily installed after.

2) a system, a construction, one-step assembly construction neat, beautiful, generous.

3) With extraordinary bearing capacity, stable force, long service life.

4) Sp-c steel coil with serrated edge can effectively resist shear, skid and impact, and strip mounting hole beautiful appearance, flexible and convenient.

5)the connector has strong versatility, suitable for all kinds of applications, simple and fast, two, three and four dimensional high strength applications; Preassembled for quick installation, reliable lock key connection,High strength.

(5)What’s the C purlins price?

Metal purlin pricing is based on the size of the job, thickness of steel, and the size of the purlin.

For instance heavier gauge purlins will cost more than lighter gauge purlins. Deeper purlins require more steel than shallower purlins. And a 10” deep purlin will be about double the cost of a 4” purlin.