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GraceSolar provided the GS-ground mounting system

GraceSolar provided the GS-ground mounting system for the 51MW solar plant in Ishikawa, #Japan. The project is expected to generate 52,433 MWh of electricity annually, which can be used by nearly 15,000 families.

Including this project, we have about 300MW of solar plants under construction in Japan since January,2022. GraceSolar has cooperated deeply with the first-class EPCs in Japan for more than 10 years, exploring more innovative ways and providing more efficient solar solutions. Looking forward to seeing more achievements!

Grace Solar is your trustworthy brand of smart solar mounting system,Follow the official website:https://www.gracesolar.com Learn more about product information.

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Photovoltaic + Water Affairs | Guorui Energy's photovoltaic support supports the "photovoltaic coat" of the water plant

Water plants are veritable large consumers of electricity, and in the event of a power outage, the failure of the unit to operate normally will have an impact on the city's water supply. Therefore, the problem of energy saving and consumption reduction has become one of the practical problems that need to be solved urgently in the operation process of water plants. The emergence of the "photovoltaic + water" model has become a recipe for resolving this problem.

 A water supply plant in Kaohsiung, Taiwan is located in the park, and a distributed photovoltaic power station is erected. Guorui Neng provided ground photovoltaic support solutions for the project. According to the site conditions, the arrangement of cement pier foundation + double rows of opposite and standing stations is adopted to make full use of the site space to achieve a more stable and efficient green power supply.

Taking into account the environmental conditions from Taiwan to high salt damage, all photovoltaic brackets are made of high-strength aluminum alloy material and treated with special anti-corrosion treatment. The quality of the product and the reliability of the design are highly recognized by customers.

In addition to this project, Guorui Energy currently has 4 water plant projects under construction in Taiwan Province, covering water supply, sewage treatment and other water agencies. It is believed that after completion, it will play an important role in achieving stable power supply, cost saving, energy saving and consumption reduction for the local water system.

In addition to Taiwan, under the background of "the whole county", many provinces and cities in the mainland issued policies this year, requiring water plants to install distributed photovoltaics, and the "photovoltaic + water" model will usher in greater development. Guorui Energy will also rely on its rich project application experience and excellent R&D strength to continuously optimize products and solutions, help water companies reduce costs and increase efficiency, and contribute to sustainable development and the realization of the dual-carbon goal!

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Solar tracking system, the industry leader

After decades of rapid development, the photovoltaic industry has made tremendous progress in both technology and economy. Promoting the reduction of the kWh cost of photovoltaic systems and achieving equal access to the Internet as much as possible has become a key factor restricting the sustainable development of photovoltaic power generation. When the manufacturing costs of components, inverters, brackets and other equipment are reduced, the conversion efficiency of components is gradually improved, and indirect costs such as land and taxes increase, how to maximize the total power generation of the photovoltaic system throughout the life cycle has become the most important way to reduce the cost of photovoltaic systems. One of the effective methods.

"Solar energy has the problems of low density, intermittentness, lighting direction and intensity changes over time. Traditional photovoltaic systems mostly adopt fixed installation modes, and solar panels cannot change with the position of the sun, resulting in the module's photoelectric conversion efficiency that does not meet expectations. According to calculations If there is a 25° deviation between the power generation system and the sunlight angle, the output power of the photovoltaic array will be reduced by about 10% due to vertical incidence. The photovoltaic tracking system can make solar panels such as "sunflowers" chase the sun at any time, increasing the amount of energy received by the photovoltaic array Solar radiation, thereby greatly increasing the overall power generation capacity of the solar photovoltaic power generation system."

It is understood that the tracking system is divided into flat single-axis tracking system, inclined single-axis tracking system, dual-axis tracking system, single-pillar inclined single-axis tracking system, inclined flat single-axis tracking system, etc.

The component grid of the flat-panel single-axis tracking system rotates the horizontal center axis around the axis, so that the sunlight shines on the single-axis tracking support system of the component as vertically as possible. The planar single-axis tracking system with an inclination angle rotates around the horizontal central axis, and the components are installed obliquely; the inclined single-axis tracking system is a single-axis tracking support system in which the component grid rotates around the inclined central axis. It has adaptive complementary tracking function, high tracking accuracy, and can significantly improve the photoelectric conversion efficiency of the system; the component grid of the dual-axis tracking system rotates around two central axes, and has a weightlifting structure and five-point support. The "field-shaped" structure is combined with the four-bar structure, and the rotation is driven in the pitch direction to eliminate the effect of water waves, prevent the impact of wind on the grid during operation, eliminate vibration, and ensure efficient power generation by the battery module.

"The selection principle of the tracking system is that the solar altitude angle in low latitude areas is relatively high, and the modules should be placed horizontally, which can significantly improve the power generation efficiency; the solar altitude angle in high latitude areas is relatively low, and the power generation efficiency after installation of the modules is relatively low. Insufficiency of the low horizontal direction, the power generation after the module is placed obliquely increases greatly. Therefore, it is more suitable to use flat uniaxial and flat uniaxial tilt in low latitude areas, and it is more suitable to use inclined uniaxial, dual axis, and flat uniaxial in high latitude areas. Axis tilt, single column tilt single axis. For example, in Zhangbei, the use of tilt single axis tracking system can increase power generation by 29%, and the use of flat single axis tracking system can increase power generation by 15%; however, in the south, through the use of The flat single-axis tracking system can increase power generation by more than 20%."

According to statistics, the excellent performance of the photovoltaic tracking system can increase the power generation of photovoltaic power plants by 20% to 30%, which has become the main way for global photovoltaic power plants to reduce costs and increase benefits. According to a set of tracking system data shared by photovol, single-axis horizontal tracking, single-axis tracking latitude angle, and dual-axis high-precision tracking can increase the revenue of power generation by 23.1%, 32.3%, and 36.9%.

At present, the era of photovoltaic tracking systems has arrived. The population is becoming more and more dense, and the land available for photovoltaic power generation is decreasing. Distributed photovoltaic power generation is becoming more and more popular in industrial parks, rooftops and small projects. The system adopts distributed photovoltaic system to improve power generation capacity. In the past, only a straight single axis could be used on a certain slope of the ground, but in our Huangshan Park, the inclined single axis used for climbing has been successfully tested. This is very good news for customers. The future prospects of dual-axis trackers are also very good. At present, it is generally believed that the cost of a dual-axis tracker is relatively high. In fact, this is a one-sided understanding. Although the initial investment cost of the dual-axis tracker is relatively high, the additional power generation is very obvious, which can guarantee a 25-year service life.

Although the situation is good, there are still some problems with the tracking system itself that need to be resolved. First, the problem to be solved is to reduce the cost of the tracking system. Only in this way can we meet the needs of large-scale commercial projects. Steel is the biggest cost factor limiting the tracking system. The current increase in domestic steel prices has brought great difficulties to the development of the tracking system. We are actively carrying out technological transformation, and the ultimate goal is to digest steel costs. In addition, another difficulty of the tracking system is that it must be designed according to the specific situation. The market has higher and higher requirements for the integration of design and construction of the tracking system, which also puts forward higher requirements for us. Power station design should consider many factors, including power generation improvement, land cost, construction cost, stability, component selection, etc.

Grace Solar is your trustworthy brand of smart solar mounting system,Follow the official website:https://www.gracesolar.com Learn more about product information.

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Solar carport Mounting system, beautiful, practical and profitable

With the improvement of people's living standards, cars have become a necessity for more and more families. With the progress and development of science and technology, and the rapid promotion and popularization of new energy vehicles, new energy vehicles have become a new trend in social development. The automobile industry and its Mounting facilities that rely on electricity have become a hot spot of competition!

As the name suggests, photovoltaic solar carports use the idle area of parking sheds to construct photovoltaic parking sheds. In addition to being used by vehicles, the excess electricity can also be sold on the grid. Not only is the income very good, but it can also save energy and reduce emissions and practice environmental protection. Idea is a very worthwhile choice for investment. The construction of photovoltaic carports has not only changed the single function of traditional carports, but also photovoltaic carports can not only shade and avoid rain, but also bring power generation benefits and achieve a win-win situation of social and environmental benefits!

As a distributed photovoltaic project on the roof of the carport, the roof surface adopts a comprehensive photovoltaic building structure, and photovoltaic modules are used to replace the roof surface to realize the power generation function, have the function of shading and rainproof, and can reduce the temperature under the shed by approximately 15°C. The shed covers an area of 27418 square meters, covering more than 1850 standard parking spaces. The project is designed with a lifespan of 30 years, and the total installed capacity of the first and second phases is 1. The 8 MW produced each year is equivalent to saving 808 tons of standard coal and reducing 1994 tons of carbon dioxide. The photovoltaic power generation of the rooftop parking lot is also the intensive use of land, which has contributed to the realization of green environmental protection and sustainable development with very social, economic and environmental benefits.

Photovoltaic sheds are the simplest and easiest way to combine photovoltaics with buildings, and they have become more and more popular in recent years. The photovoltaic shed has good heat absorption, convenient installation and low cost.

With people,s emphasis on environmental protection, especially in recent years, the strict control of exhausted resources and the emphasis on renewable energy, especially the National Fourteenth Five-Year Plan and the national medium and long-term strategic plan, the application of renewable energy such as solar energy has been affected. Unprecedented attention. Solar photovoltaic power generation is also widely used in various sunny places.

This solar carport is amazing, parking and generating electricity: the photovoltaic panels are assembled on the top of the shed. From the outside, it is an ordinary shed, which can protect the vehicle from the wind and the sun.

There is a combiner box under each shed. The solar panels on the roof store the absorbed electricity uniformly here, and then convert the direct current to alternating current through the inverter, and then transmit it to the grid to complete power generation.

Photovoltaic power generation in the carport is a new type of power generation, and it is also a future development trend. Early installation and early benefit. As long as the photovoltaic module power generation system is installed on a sunny roof, the solar energy can be converted into electrical energy to supply residents' daily use of electricity. Or industrial electricity in factories. Rooftop power generation is different from the traditional centralized ground photovoltaic power generation. It has the characteristics of miniaturization and decentralization, which is economical, efficient and reliable. Distributed photovoltaic power stations can be installed in places exposed to sunlight, such as industrial plants, residential roofs, balconies, sun rooms, and the ground.

The photovoltaic shed is mainly composed of Mounting system, battery component array, lighting control inverter system, charging device system and lightning protection grounding system. The Mounting system mainly includes Mounting columns, inclined beams fixed between the Mounting columns, purlins for Mounting the solar cell module array, and fasteners for fixing the solar cell module array.

Photovoltaic canopy Mounting are of various types. Conventionally, they can be divided into single-column unidirectional, double-column unidirectional, and single-column bidirectional.

The construction scale of photovoltaic sheds can be large or small, such as the Ningbo Hangzhou Bay project. The total installed capacity is 55. It uses MW of finished car parking lot and employee parking lot of Shanghai Volkswagen Ningbo Branch, which is equivalent to 20 football fields and can park more than 20,000 vehicles.

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Solar carport case show, both charging and parking

As the simplest way to combine photovoltaics and buildings, photovoltaic carports have become more and more popular in recent years. The photovoltaic carport has good heat absorption, convenient installation and low cost, which not only makes full use of the original site, but also provides green energy. The construction of photovoltaic carports in factory parks, commercial areas, hospitals, and schools can solve the problem of high temperatures in outdoor parking lots in summer.

In fact, it is not only used in commercial environments, if your family has 1-2 cars and you plan to build your own carport, you can also consider configuring a solar carport. Solar parking sheds equipped with charging piles are very suitable for families with electric vehicles.

In addition to sheltering vehicles from wind and rain, photovoltaic carports can also use solar energy to charge and illuminate electric vehicles and integrate them into the grid to create clean photovoltaic energy. The system has almost no geographical restrictions, is very flexible and convenient, and comprehensively utilizes space resources to develop new energy.

As long as there is enough space, photovoltaic carports can not only realize the benefits of green energy generation, but also meet the functions that conventional carports cannot. And with the development of different application technologies, charging of electric vehicles and electric bicycles is becoming more and more realistic. Really enjoy the convenience that green energy brings to life.

Solar carports are appearing around us more and more. The solar parking shed is not only beautiful in design, but also mainly uses solar energy to generate electricity. The generated electricity can be used to charge electric vehicles, as well as portable devices such as laptops and mobile phones. The system is energy-saving and environmentally friendly, reduces carbon dioxide emissions, and is in line with the global low-carbon economic development trend.

In foreign countries, solar parking sheds have long been widely used in commercial environments. In recent years, in order to alleviate the power shortage, my country has vigorously promoted solar carports.

With climate change and the gradual reduction of energy resources, energy conservation has become more and more important. Therefore, installing photovoltaic equipment on the roof of the company is an effective way to significantly improve energy efficiency. However, in many cases, the roof area is too small to generate enough electricity, not to mention actively achieving building energy self-sufficiency. The photovoltaic carport provides a suitable solution for photovoltaic power generation on a larger site.

Grace Solar is your trustworthy brand of smart solar mounting system,Follow the official website:https://www.gracesolar.com Learn more about product information.

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Household photovoltaic roof, teach you how to become rich in the roof

The following 5 steps can simply predict whether the roof is suitable for installing distributed photovoltaic systems:

1. There is installation space on the roof, 3kw household photovoltaic power generation system needs 30 square meters, and 5kw household photovoltaic power generation system needs 45 square meters;

2. Installation roofs have property rights, villas and self-built houses must have roof property rights or provide roof property rights at township level and above suitable for installing household photovoltaic power generation systems; the property rights of collective shared resources such as residential houses and other roofs are not specific and unclear. The disputed roof is not suitable for installation.

3. The roof structure has a certain bearing capacity, and the additional weight of the roof is within 15 kg/m2;

4. There is no water leakage on the roof;

5. For roof selection, a flat roof facing east and south is preferred.

Environmental protection, pollution-free, stable income, beautiful appearance, heat preservation, etc. The benefits of photovoltaic power plants go far beyond this, especially in rural areas where photovoltaic power plants are installed on idle roofs. As long as there is a sunny day, the power plants are generating money to make money.

With the introduction of the "dual carbon" goal, distributed photovoltaics, which have shown a good momentum of development, will accelerate further. Among them, household photovoltaics is a subdivision force that cannot be underestimated.

It is true that the popularization of household photovoltaics is inseparable from the promotion of policies and the reduction of costs. In 2019, the National Energy Administration included photovoltaic bidding projects into the scope of subsidies in 2019, prompting the recovery of the household photovoltaic market, and the increase in output brought about by cost reduction has also become an important reason for stimulating the rapid development of household photovoltaics. For ordinary people, household photovoltaics have a natural "friendly" attribute. There is no consumption bottleneck. The construction and operation and maintenance are quite friendly. It is also possible to directly use idle residential roof resources to fully save land, realize direct grid connection and direct consumption on site, and reduce intangible losses caused by long-distance power transmission from the power grid.

If there is smog, can it still generate electricity normally?

The household photovoltaic power generation system uses the grid-connected inverter independently developed by CRRC, which has the function of solar panel maximum power tracking and low-light power generation. It can still generate power in fog or cloudy days, but due to the reduced light intensity, the power generation is reduced. Photovoltaic power generation is mainly determined by the irradiation intensity, sunshine time and working temperature of solar cell components. Due to the relatively weak sun exposure in haze days, the amount of power generation is relatively small. In winter, due to the sun angle problem, the shadow length is longer, the equivalent power generation hours are relatively small, and the power output is small. Generally speaking, to measure photovoltaic power generation, one needs to look at the annual average. Since the distributed photovoltaic system is grid-connected, the electric energy used by the user is provided by the grid and the photovoltaic system. Due to the inherent characteristics of electrical energy, the electrical energy generated by photovoltaics will be preferentially absorbed. When the photovoltaic power supply is insufficient or missing, the grid will automatically and steadily supply users, so there is no impact on electricity consumption throughout the day. If the power generation during the day cannot meet the daily power demand, and the photovoltaic system does not generate power at night, distributed photovoltaic power users can enjoy the power supply of grid companies like other ordinary power users, and the price will not be biased.

The normal working state of the grid-connected series inverter is that it will only output power when the grid has power. After the grid is cut off, the photovoltaic power generation system will automatically stop and disconnect from the grid, and the inverter will automatically detect the grid status. After the grid returns to normal, the photovoltaic power generation system will automatically resume operation without manual intervention.

If you are worried about power outages, you need to install household photovoltaic power generation systems and energy storage systems. During the day, the electricity generated by the photovoltaic power generation system is stored in the energy storage system, and the power supply of the energy storage system to the electrical equipment is not restricted by the grid.

The income of distributed photovoltaic power generation is divided into two parts: state subsidies and electricity sales income (including self-use electricity fee and online electricity sales income). For distributed photovoltaic grid-connected power generation systems, the state subsidy is a uniform electricity subsidy of 0.42 yuan per power generation, the online price of electricity sold is the price of desulfurized coal (0.45 yuan/kWh in Hunan), and the electricity fee for self-use is the price of self-use electricity.

The generated photovoltaic power is given priority to domestic electrical equipment, and the remaining part is uploaded to the power grid for unified dispatch by the power grid. The metering device is installed by the power grid, and the total amount of photovoltaic power generation and the corresponding subsidies and electricity sales revenue are settled by the power grid on a monthly (or quarterly) basis, that is, "receiving electricity from the grid".

Grace Solar is your trustworthy brand of smart solar mounting system,Follow the official website:https://www.gracesolar.com Learn more about product information.

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Solar photovoltaic mounting system (green and environmental protection first choice)

Solar photovoltaic mounts is a special bracket designed for placing, installing and fixing solar panels in solar photovoltaic power generation systems. The general materials are aluminum alloy, carbon steel and stainless steel. The global energy crisis has promoted the rapid development of the new energy industry. Solar energy is the most important basic energy source among all kinds of renewable energy. Therefore, as a solar power generation technology that converts solar radiant energy into electrical energy, the photovoltaic industry is developing rapidly. The application advantages of solar panel support go far beyond simple production and installation. Solar panels can also be moved flexibly according to sunlight and seasons. Just like when it was just installed, the slope of each solar panel can be adjusted to adapt to different light angles by moving the fasteners, and the solar panel can be accurately fixed at the designated position by re-tightening the solar panel.

1. For sloping roof photovoltaic systems, our brackets are generally placed on the roof. Therefore, we must choose the brackets according to the roof type. For sloping roof photovoltaic support equipment, it is very suitable for equipment accessories with different thicknesses and adjustable tile roof heights to meet various application requirements of customers. Moreover, its adjustment is also very convenient, and it can be used without damaging the roof.

2. In the case of a flat roof photovoltaic system with a self-waterproof system, the installation of the support is realized. As the name suggests, the support equipment of the system is a flat roof support installation system, which is more convenient for installation. Because the installation site is relatively flat, it is suitable for large-scale laying and has a variety of stable and reliable basic connection methods. We can also develop unique accessories according to customer requirements to maximize customer satisfaction.

3. The most common photovoltaic support equipment for large ground photovoltaic systems is a large ground photovoltaic system. Large-scale ground photovoltaic power generation systems generally use concrete strip foundations. This kind of bracket installation method can quickly realize the installation, and cooperate with the large-scale ground photovoltaic system to improve the progress of the power station construction team, so it is also the most widely used.

At present, the solar photovoltaic Mounting system widely used in my country is divided into three types: concrete support, steel support and aluminum alloy support.

1. Concrete supports are mainly used for large-scale photovoltaic power stations. Due to its own weight, it can only be placed on site and well-founded areas, but it has high stability and can support large panels.

2. The steel bracket has stable performance, mature manufacturing technology, high carrying capacity, simple installation, excellent anti-corrosion performance and beautiful appearance. Unique connection design, convenient and quick installation, simple and universal installation tools, and the service life of steel and stainless steel parts made of structural anti-corrosion materials is more than 20 years.

3. Aluminum alloy brackets are generally used for solar applications on the roofs of civil buildings. Aluminum alloy has the characteristics of corrosion resistance, light weight, beauty and durability, but its carrying capacity is low, and it cannot be used in solar power station projects.

Comparison of comprehensive performance of photovoltaic support

(1) Aluminum alloy profiles are light in weight, beautiful in appearance and excellent in corrosion resistance. Generally used in rooftop power stations, strong corrosive environments and chemical plant power stations with load-bearing requirements. If aluminum alloy is used as the support, the effect is better.

(2) The steel has high strength and small deflection and deformation when under load. It is generally used for power stations under ordinary conditions or for parts with relatively large forces. In windy areas, where the span is relatively large, the use of steel supports has obvious economic benefits.

(3) Cost: Under normal circumstances, the basic wind pressure is 0.6kn/m2 and the span is less than 2m. The cost of aluminum alloy bracket is 1.3-1.5 times that of steel structure bracket.

The future trend of solar photovoltaic mounts:

1. The position of photovoltaic brackets in the power station system is getting higher and higher

With the reduction of high-quality sites for photovoltaic power stations, more and more photovoltaic power stations are built in harsh environments, and photovoltaic power stations are built in areas with uneven land. This puts forward higher requirements for the stability and reliability of the photovoltaic support. At the same time, in the context of the gradual decline in photovoltaic subsidies, photovoltaic support, as an important product to reduce costs, improve efficiency, and improve power station investment efficiency, has become a very important part of the power station investment industry.

2. Photovoltaic modules present a high-power trend, which affects the market space of photovoltaic brackets

In recent years, photovoltaic modules have shown a high-power trend. In the future, the power of photovoltaic modules will continue to rise due to the superposition of various factors such as the increase in power of various types of battery modules, heterojunctions, and the continuous popularization of n-pert/TOPCON high-power batteries. The data shows that from 2017 to 2019, the average power of photovoltaic modules in domestic photovoltaic power plants was 313W, 331W and 358W, respectively. It is estimated that the average power of China's photovoltaic modules will reach 420W in 2023.

Grace Solar is your trustworthy brand of smart solar mounting system,Follow the official website:https://www.gracesolar.com Learn more about product information.

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A New Report published by IEA PVPS has defined BIPV

Incorporating solar energy into our built environment represents an opportunity to install hundreds of gigawatts around the world without occupying any additional land. However, in many cases, this will require solutions beyond typical rooftop photovoltaic installations and closer cooperation between photovoltaics and the construction industry. A new report issued by IEA PVPS aims to combine the benefits of the two worlds and clearly classify the building envelope and energy functions of different BIPV components.

"By considering the main technical subsystems of the multifunctional building skin, the main features in terms of function, performance, form, structure and energy-related aspects are organized into five levels from application categories to materials," the report author said.

The five categories defined in the report are derived from the categories outlined in IEC Standard 63092-1 "Building Photovoltaics-Part 2: Requirements for Building Integrated Photovoltaic Systems". The IEC categories define different types of BIPV systems, based on the accessibility of the integration area and the interior of the building. IEA PVPS further decomposes these into "systems"-representing the entire building unit, "modules" representing energy and active elements in the building, "components" representing the components that make up these elements, and "materials" representing basic materials.

At the system level, the report points out three main types of BIPV systems, which are divided into roofs, facades and external integrated equipment. They further subdivided each of them into subsections—for example, the "roof" was divided into discrete roofs, continuous roofs, and atriums/skylights. Then according to the transparency of the elements, the report's module-level categories are divided into three.

By clearly defining the different system elements in this way, the report hopes to combine the interests of photovoltaic system designers and architects-this is one of the key challenges for the development of BIPV.

Grace Solar is your trustworthy brand of smart solar mounting system,Follow the official website:https://www.gracesolar.com Learn more about product information.

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Classification and characteristics of solar ground Mounts system

Solar photovoltaic power generation technology continues to mature, and its practicability is becoming more and more extensive. At present, the photovoltaic market attracts many companies to invest in projects to obtain benefits. However, how to choose a suitable solar bracket according to local conditions is an important link to ensure the efficient operation of the entire photovoltaic system.

1. Matters needing attention in the design and selection of solar stents

The installation structure of the solar photovoltaic support should be simple, strong and durable. The materials used to manufacture and install photovoltaic arrays must be able to withstand the harsh environment of the project site to ensure 25 years of weather resistance and corrosion resistance and structural strength.

Electroplated aluminum profiles, electroplated steel and stainless steel are all commonly used materials.

2. Common ground solar photovoltaic Mounts foundation

(1). Cement foundation

Introduction: If the installation site is not suitable for plug-in piles, you can choose to make a cement foundation. Place the ground photovoltaic support on the cement foundation and fix it with bolts.

Features: The depth of the foundation can be relatively shallow, but the amount of excavation and backfill is relatively large, and the amount of concrete is relatively large.

Scope of application: This type of foundation is mostly used in flat single-axis tracking photovoltaic supports with poor foundation bearing capacity, relatively flat sites, low groundwater levels, and high requirements for uneven settlement.

(2). Precast pile foundation

Introduction: Precast piles are made of various materials and various forms of piles (such as wooden piles, concrete square piles, pre-stressed concrete pipe piles, steel piles, etc.) made at the factory or construction site. The piles are driven into the pile with pile sinking equipment , Press or vibrate into the soil. The prefabricated piles used in my country's construction field are mainly concrete prefabricated piles and steel piles.

Features: It can be produced in batches, and the construction speed is fast. There is no fill and excavation in the construction, and only simple site leveling is required. Which increases the cost and the verticality is not easy to guarantee.

(3). Hammer into the ground pile

Introduction: Use a pile driver to directly drive C-shaped steel, H-shaped steel or other structural steel into the ground. This installation method is very simple, but the pull-out resistance is poor.

Features: fast speed, strong adaptability; high cost performance; not restricted by seasonal temperature; easy to pull out the piles, and does not affect the reuse of the installation site.

Scope of application: It is difficult to piling in hard soil areas; it is easy to be galvanized when piling in areas with a lot of gravel; corrosion resistance is poor when used in saline-alkali areas.

(4). Spiral pile

Introduction: After the 1880s, as an alternative pile type screw pile with unique advantages, it has been widely used in the United States, Australia and Europe and other countries, and can meet various engineering requirements such as compression resistance, uplift resistance and horizontal resistance.

Features: a metal or non-metallic pipe pile or column pile with spiral blades, which is screwed into the ground with special equipment, and the top of the pile is connected to the load. Its advantages are quick and convenient construction, greatly shortening the construction period, environmentally friendly, and environmentally friendly , Without vegetation, it can be implemented under various climatic conditions including winter in the north, which can facilitate migration and recycling.

During the construction of the photovoltaic array foundation and support, it is necessary to avoid damage to related buildings and ancillary facilities as much as possible.The so-called everything is difficult at the beginning, as long as we strictly control the foundation construction and make all deviations meet the requirements, not only can we avoid the subsequent installation of the ground solar mounting system such as skew and distortion, and greatly reduce the workload of on-site over-tolerance adjustment, but also It also plays an important role in improving the installation efficiency of subsequent brackets and ensuring the overall stability of the bracket installation.

Grace Solar is your trustworthy brand of smart solar mounting system,Follow the official website:https://www.gracesolar.com Learn more about product information.

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How to choose pv mounts steel and aluminum

Businesses often ask whether a steel bracket is better or an aluminum bracket. In response to this problem, the author here briefly analyzes the advantages and disadvantages of steel and aluminum.

1. Material strength

The bracket generally uses Q235B steel and aluminum alloy extruded profile 6063 T6. The design strength comparison between the two is shown in the following table:

Strength comparison table (N/mm2)

In terms of strength, 6063 T6 aluminum alloy is about 68%-69% of Q235 B steel. Therefore, steel is better than aluminum alloy profiles in areas with large spans and strong winds.2. Deflection and deformationThe flexural deformation of the structure is related to the shape and size of the profile, and the elastic modulus (intrinsic parameter of the material), but it is not directly related to the strength of the material.

Comprehensive comparison of the two under the same cross-sectional conditions

Under the same conditions, the deformation of aluminum alloy profile is 2.9 times that of steel, and its weight is 35% of steel. Under the same weight, the cost of aluminum profile is 3 times that of steel. Therefore, the cost of steel is better than aluminum alloy profiles in areas with strong winds and large spans.3. Anti-corrosion aspectAt present, the main anti-corrosion methods for stents are hot-dip galvanizing of steel 55-80μm and anodic oxidation of aluminum alloy 5-10μm.In the atmosphere, the aluminum alloy is in the passivation zone, and a dense oxide film is formed on the surface, which hinders the contact between the surface of the active aluminum matrix and the surrounding atmosphere, so it has very good corrosion resistance, and the corrosion rate decreases with time.Under ordinary conditions (C1-C4 environment), 80μm galvanized thickness can be used for more than 20 years. However, in high-humidity industrial areas, high-salinity seashores and even temperate seawater, the corrosion rate is accelerated, the amount of galvanization needs to be more than 100μm, and regular maintenance is required every year.Aluminum alloy is far superior to steel in terms of corrosion protection.4.other aspects of comparison(1) Appearance: There are many kinds of surface treatments for aluminum alloy profiles, such as anodizing, chemical polishing, fluorocarbon spraying, electrophoretic coating, etc. Beautiful appearance, can adapt to various corrosive environments.

Steel is generally hot-dip galvanized, steel sprayed, and painted. The appearance is not as good as aluminum alloy profiles. Its corrosion resistance is not as good as aluminum profiles.

(2) Cross-section diversity: The general processing methods of aluminum alloy profiles include extrusion, casting, bending, and stamping. Extrusion production is currently the mainstream production method. By opening the extrusion die, any profile of any cross section can be produced, and the production speed is relatively fast. Steel generally adopts rolling, casting, bending, and stamping. At present, rolling is the mainstream production method of cold-formed steel. The section needs to be adjusted by a roller set, but the general machine can only produce similar products after sizing. The size can be adjusted, but the section shape cannot be changed. For example, the section of C-shaped steel and Z-shaped steel. The rolling production method is relatively fixed and the production speed is relatively fast.

5.comprehensive performance comparison(1) Aluminum alloy profiles are light in weight, beautiful in appearance, and excellent in corrosion resistance. They are generally used in roof power stations with load-bearing requirements and strong corrosive environments. For example, in the power station of a chemical plant, it is better to use aluminum alloy as the support.(2) The strong height of steel has small deflection and deformation under load, and it is generally used for power stations or components with relatively high stress.(3) Cost: Generally, the basic wind pressure is 0.6kN/m2, the span is less than 2m, and the cost of the aluminum alloy bracket is 1.3-1.5 times that of the steel structure bracket. In small-span systems (such as color steel roofs), the cost difference between aluminum alloy brackets and steel structure brackets is relatively small, and aluminum alloy brackets are much lighter than steel brackets, which are very suitable for rooftop power stations.

Grace Solar is your trustworthy brand of smart solar mounting system,Follow the official website:https://www.gracesolar.com Learn more about product information.

Grace Solar is your trustworthy brand of smart solar mounting system,Follow the official website:https://www.gracesolar.com Learn more about product information.

[gracesolar]

Solar carports play a role in low-carbon city construction

In the construction of low-carbon cities, PV carports are playing an important role. However, planning large-scale PV parking lots in densely populated urban areas must ensure the safety of personnel and property, and put forward higher requirements for the stability of the carport.

GraceSolar's PV carport uses high-strength aluminum alloy materials certified by the JIS authority. We are the first PV mounting system manufacturer in China to obtain this certification. The series of carports can accommodate up to 10 cars in a single row, and can be deployed in the parking areas of factories and commercial buildings. Choosing products that have been authoritatively certified will give your parking lot projects a safer guarantee.

Grace Solar is your trustworthy brand of smart solar mounting system,Follow the official website:https://www.gracesolar.com Learn more about product information.

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Favorable policies, Grace Solar BIPV strives forward

Favorable policies, Grace Solar BIPV strives forward

Recently, the National Development and Reform Commission on the development of photovoltaic county New Deal caused widespread concern, the roof distributed photovoltaic market potential is huge. Grace Solar as the first company to export distributed rooftop pv panels, has been the number one exporter for many years and will continue to play a leading role in helping to reduce carbon emissions from green buildings in China.

Photovoltaic county New Deal interpretation

It is reported that the Comprehensive Department of the National Energy Administration recently issued “on the submission of the whole county (city, district) roof distributed photovoltaic development pilot program notice” clearly stated that the project application pilot county (city, district) of the party and government building roof area can install photovoltaic power ratio of not less than 50%; Schools, hospitals, village committees and other public buildings roof area can be installed pv power generation proportion of no less than 40%; The total roof area of industrial and commercial workshop can be installed pv power generation proportion is not less than 30%; The total roof area of rural residents can be installed with pv, and the proportion of power generation is not less than 20%.

In the whole county (city, area) advancing the construction of distributed photovoltaic roof, is beneficial to integration of resources to achieve intensive development, conducive to cut electricity peak load, which saves investment optimization of distribution network, is beneficial to guide the green energy consumption, is to realize the “carbon peak, carbon neutral” and rural revitalization of the two countries of major strategic important measures.

In May this year, Fujian issued the “household PHOTOVOLTAIC county centralized promotion of the pilot notice”, Shandong, Jiangxi, Shaanxi and other places have also issued relevant policies. Some experts also predict that only in Fujian, Jiangsu, Zhejiang, Shanghai, Guangdong and other east and south China regions, the distributed roof installed potential is more than 200GW.

Grace Solar BIPV is helping green buildings grow rapidly

As an influential brand of photovoltaic brackets, Grace Solar has a deep accumulation of photovoltaic bracket technology, cutting-edge technology and a good reputation. Grace Solar is currently the largest single BIPV project solution provider in China, having made significant achievements in the field of BIPV building integration.

The overall design of the Grace Solar BIPV is composed of ordinary framed photovoltaic modules, W water shield, U-shaped water guide and auxiliary materials. Suitable for industrial and commercial roof, old plant reconstruction and new plant construction of power station projects. Through the combination of photovoltaic power generation and building materials, the integration of photovoltaic buildings can be realized to help buildings transform from energy consumption type to production capacity type and create environmentally friendly green buildings. Grace Solar is on the move to help buildings save carbon efficiently!

Compared with the traditional rooftop distributed power station with components laid on the roof of colored steel plate, Nengshe-BIPV system solution has many highlights and advantages:

● Good adaptability, suitable for all conventional framed solar modules;

● Meet the building wind pressure, air tightness, water tightness three characteristics;

● Meet the requirements of anti-leakage, anti-settlement and anti-shrinkage of conventional buildings;

● Wide range of use, suitable for most ordinary old, new steel structure workshop;

● High level of appearance, meet the requirements of architectural aesthetics.

At the same time, it has the advantages of high wind speed, high snow load, good ventilation and lighting, excellent heat insulation and fire prevention, shockproof and waterproof, and easy operation and maintenance in later period, which can bring you more abundant investment returns on the premise of protecting the safety and reliability of the whole building.

BIPV pv building integrated policy, development potential is tremendous, Grace top roof distributed photovoltaic Solar stent market more than 10 years, will firmly grasp the opportunity, in energy planning "difference" and "double carbon" goal, under the guidance of increase of BIPV pv building integrated r&d and product innovation, improve product core competitiveness, Strive to help buildings to achieve efficient carbon emission reduction and "carbon neutrality".

Grace Solar is your trustworthy brand of smart solar mounting system,Follow the official website:https://www.gracesolar.com Learn more about product information.

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Tracking system with wireless networks is the future

The increase in power generation of photovoltaic power plants is inseparable from the design and later operation and maintenance of the mounting system.Unfortunately,Large-scale solar power plants are becoming more and more vulnerable to extreme weather : storms, temperature and precipitation continue to grow unpredictably.This puts arrays at risk of decreased output or being knocked offline completely, creating penalty payments for O&M.

Wireless networks is the key to solve this problem.It can provide cost-effective, scalable and reliable connectivity for solar projects.Actually, deployed wireless project examples showed up to 75% cost reduction when expanding existing wired communication networks in installed PV plants with wireless vs. more wired communication infrastructure.

Typically, in the case of wired communication infrastructure, a technician would have to go out into the field and either repair or replace the equipment.But if you chooes the system with wireless networks such as GS tracking system by Grace Solar,Operators could then work in the background from the remote control center to get the sensor back up and running without causing a disruption of service.

Wireless communication networks have the ability to scale connectivity, extend the lifetime of assets and save power companies significant OPEX costs over the lifetime of the solar project.

Grace Solar is your trustworthy brand of smart solar mounting system,Follow the official website:https://www.gracesolar.com Learn more about product information.

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How to choose a reliable solar mounting system

In recent years, my country's photovoltaic industry has developed rapidly. Bright prospects and challenges coexist. Only by adopting new ideas, new designs, and new materials to provide domestic users with safe, economical, reliable, and multi-functional solar photovoltaic supports, can we provide a broader application space for the comprehensive promotion and development of photovoltaic power generation in my country .

Introduction: With the rapid development of China's green economy, monocrystalline silicon/polycrystalline silicon photovoltaic power generation and thin-film BIPV technologies are becoming more and more mature. Compared with other structures, steel structures have great advantages in terms of function, design, construction and overall cost. Therefore, it is of great significance to actively develop and produce a new type of steel structure solar photovoltaic stent system to replace the existing angle steel photovoltaic stent system. Solar photovoltaic support requires the steel of solar steel structure to have the following properties:

1. Tensile strength and yield point. The high yield point can reduce the cross-section of the steel member, reduce the weight of the structure, save steel, and reduce the overall project cost. High tensile strength can increase the overall safety reserve of the structure and improve the reliability of the structure.

2. Plasticity, toughness and fatigue resistance. The good plastic properties cause the structure to deform greatly before failure, so that people can find out and take remedial measures in time.

3. Processing performance. Good processing performance includes cold processing performance, hot processing performance and welding performance. The steel used in photovoltaic steel structure not only needs to be easy to process into various forms of structures and components, but also requires that these structures and components do not cause excessive adverse effects of strength, plasticity, toughness and fatigue resistance due to processing.

4. Service life. Since the design service life of the solar photovoltaic system exceeds 20 years, good anti-corrosion performance is also an important indicator to measure the quality of the support system. If the support life is short, it will inevitably affect the stability of the entire structure, leading to a prolonged investment payback period and reducing the economic benefits of the entire project.

At present, the use of angle steel solar photovoltaic supports is restricted by more and more conditions. The main reason is that the quality of the current steel is uneven, and installation requires a lot of on-site drilling, but the steel is easy to rust after drilling, so you need to choose a trustworthy photovoltaic bracket brand. Guoruineng carbon steel series photovoltaic mounting system adopts a new structure to slow down corrosion and prolong service life.

The main structure of the new solar photovoltaic support:

1. Special-shaped cold-formed thin-walled steel support structure system. Special-shaped cold-formed thin-walled steel is an assembled light steel structure system that can be quickly assembled and completely dried. It has the characteristics of less steel consumption and saving time and effort in construction.

2. The whole steel photovoltaic support system is prefabricated in the factory. The factory prefabricated steel structure frame with purlin only needs to assemble the fixed support module on the construction site, and then install the battery panels to form the entire photovoltaic array. The construction speed is fast and it is suitable for large power stations.

3. The solar photovoltaic support structure system of beam-column frame curtain wall. Photovoltaic curtain wall is suitable for beam-column frame solar photovoltaic support system. The structure is light in weight and reliable in structure.

Through the above analysis, I believe that you have a good idea of ​​how to choose a reliable photovoltaic mounting system. Choosing a trustworthy photovoltaic mounting brand will provide a solid guarantee for the long-term operation of your photovoltaic power station.

Grace Solar is your trustworthy brand of smart solar mounting system,Follow the official website:https://www.gracesolar.com Learn more about product information.

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The first in China! Grace Solar aluminum alloy PV carport system passed Japan JIS certification!

GraceSolar Aluminum Alloy PV Carport passed the Japanese JIS certification, becoming the first Chinese domestic solar mounting system supplier to pass the certification. This certification is mainly aimed at medium and large parking lot projects. Passing the certification means that the safety of GraceSolar's carport system in the construction of medium and large parking lot projects has been authoritatively recognized!

What is JIS Certification?

JIS standard is an industrial standard formulated and deliberated by JISC, which is the top 10 standardization organizations in the world. It is not only the most important and authoritative national standard in Japan, but also has a high influence in the world. JIS certification not only strictly tests the product quality and performance, but also reviews the factory to ensure that the factory has the strength to continuously and stably produce qualified products..

Why do PV carports require JIS certification?

PV carports are mostly set up in densely populated urban areas, and the safety performance of the carport is related to the personal and property safety of users. Therefore, the Japanese market has rigid requirements for medium and large carports, and the materials used for carports need to pass JIS certification. Previously limited by this policy, Chinese PV mounting system suppliers were unable to undertake medium and large-scale photovoltaic carport projects in Japan.

Grace Solar attaches great importance to JIS certification. We strictly declare in accordance with the requirements, overcome the impact of the epidemic, and actively cooperate with the review team. After one year of rigorous procedures, we finally obtained JIS certification, and became the first PV mounting system supplier in China to obtain the certification. It shows that our safety in the construction of medium and large parking lot projects has been authoritatively recognized!

With office buildings, shopping malls, hospitals and other urban public spaces are increasingly using photovoltaic carports, GraceSolar will provide you with safe and reliable products and services!

Grace Solar is your trustworthy brand of smart solar mounting system,Follow the official website:https://www.gracesolar.com Learn more about product information.

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The features of Grace Solar BIPV system solutions

1.With good adaptability, it can adapt to all conventional framed solar modules.

2. Long service life, no need to replace tin roof within 30 years.

3. Large installed capacity, which is 30% higher than distributed projects.

4.High investment payback and IRR.

5. Wide range of applications, suitable for most of old or new steel structure factory.

6. Perfect appearance , to meet the requirements of architectural aesthetics.

Grace Solar is your trustworthy brand of smart solar mounting system,Follow the official website:https://www.gracesolar.com Learn more about product information.

[gracesolar]

New Flexible mounting system

For photovoltaic plant project with large spans and complex terrain, flexible support system from Grace solar is a cost-effective choice. It is mainly composed of steel wire ropes, edge support members, and middle support members. The photovoltaic modules are fixed on the prestressed steel cables through connectors, which are highly adaptable and flexible.

Except for the support column itself, it does not occupy land space, which can save 35% of steel materials and reduce the cost of construction. This support solution is also suitable for sewage treatment plants, rivers, highways, landfills and other occasions.

more:https://www.gracesolar.com/