In the vibrant city of Dubai, AJPOWER recently took center stage at the Solar Photovoltaic Exhibition SME, held from March 6 to March 8, 2023. The exhibition proved to be a resounding success, resonating with the energy and enthusiasm that defines this modern hub. As we immersed ourselves in the innovative atmosphere, we were thrilled to witness the spirit of collaboration take shape. Several valuable partnerships were forged during the event, marking the beginning of a shared commitment to building a green energy world.

The success and warm reception in Dubai spurred our confidence, prompting us to participate non-stop in the upcoming China International Trade Expo (UAE). Scheduled to unfold at the prestigious Dubai World Trade Center from December 19 to December 21, 2023, this expo promises to be a continuation of the positive momentum generated during the Solar Photovoltaic Exhibition SME.

At the heart of the action will be our exhibition space in Hall Arena AF114, the first exhibition hall. It's here that we invite friends, partners, and enthusiasts of green energy to join us, explore our offerings, and engage in meaningful conversations. We are excited to share updates, showcase our cutting-edge lithium iron phosphate batteries (LiFePO4), and unveil the latest innovations in home energy storage systems and power batteries,In particular, sodium-ion batteries are brought to the exhibition for the first time, which will be the beginning of another energy revolution.

Dubai, with its wealth and magical allure, presents a fitting backdrop for our endeavors. The city's forward-thinking approach aligns seamlessly with AJPOWER's commitment to sustainable energy solutions. The exhibitions serve as a platform for us to connect with like-minded individuals and businesses, fostering collaborations that will contribute to the realization of a cleaner and greener future.

As we eagerly anticipate the China International Trade Expo (UAE), we extend an open invitation to all to visit our exhibition space, where surprise activities await. Join us on this journey towards a sustainable, energy-efficient world. Together, let's make a difference and illuminate Dubai with the brilliance of green energy. Stay tuned for updates, and we look forward to welcoming you at Hall Arena AF114.

P-type and N-type solar cells are two common types named after the silicon substrate they use. P-type silicon is doped with boron, creating positive charge carriers, while N-type silicon is doped with phosphorus, generating negative charge carriers. When joined, they form a P-N junction, the basic unit of a solar cell.

Differences:

-Efficiency: N-type cells generally have higher efficiency due to fewer recombination losses, tolerance to impurities, and lower sensitivity to light-induced degradation. Advanced technologies like TOPCon, HJT, and IBC contribute to higher efficiency, with a theoretical limit of 28.7% for N-type versus 24.5% for P-type.

- Cost: P-type cells are less expensive due to simpler manufacturing processes, mature technology, and higher yield. However, the cost gap is expected to narrow as N-type cells improve production efficiency.

- Stability: N-type cells exhibit higher stability with a lower temperature coefficient, higher bifaciality, no light-induced degradation, and less potential-induced degradation. They withstand harsh environmental conditions better, ensuring a longer lifespan and greater reliability compared to P-type cells.

Future Trends and Technologies:

- P-type Cells: Dominant in the market, P-type cells (80% of global production) rely on PERC technology, incorporating a rear passivation layer to enhance efficiency and stability. Ongoing advancements include larger wafer sizes, half-cut cells, multi-busbar contacts, and shingled modules. However, P-type cells face increasing competition from N-type cells.

- N-type Cells: Accounting for 15% of global production, N-type cells utilize technologies like TOPCon, HJT, and IBC to establish passivated contacts, reducing recombination losses and increasing efficiency. N-type cells aim for higher efficiency potential, lower degradation rates, and reduced costs through innovations such as thinner wafers, MWT cells, and tandem modules.

SpolarPV as a Solar Solution Provider:

- SpolarPV Technology Co., Ltd is a leading solar solution provider with a focus on designing, manufacturing, and marketing solar cells, modules, and power systems.

- Established in 2010 and headquartered in Nanjing, China, SpolarPV has a state-of-the-art facility with an annual production capacity of 800MW and a global sales network spanning over 50 countries.

- SpolarPV offers a diverse range of high-quality solar products, including P-type and N-type solar cells and modules, full black and dual glass modules, BIPV modules, and customized solutions for various applications.

- A flagship product is the 625W TOPCon solar module, utilizing 210mm N-type cells with a conversion efficiency of 22.08%. The module excels in challenging conditions and is ideal for large-scale ground-mounted solar systems, optimizing power generation and return on investment.

- Committed to innovation, quality, service, and sustainability, SpolarPV aims to contribute to the global energy transition and environmental protection.

- For more information on SpolarPV's products and services, interested parties are encouraged to contact them for a brighter and greener future.

1. Home backup system:

In today's push for renewable energy, home solar energy systems are becoming an increasingly popular option. These systems utilize solar energy to convert light energy into electricity, providing clean, renewable energy for the home. In this article, we'll cover the workings and components of a home solar system to help us gain a deeper understanding of how it works.

Solar Module

The centerpiece of a home solar system is a photovoltaic module, which usually consists of multiple solar panels. These solar modules convert sunlight into direct current electrical energy through the photovoltaic effect in semiconductor materials. When sunlight hits the solar panels, the light energy is absorbed by the photovoltaic material and electrons are excited. These free electrons flow through an external circuit to form a DC current. Solar panels need to be secured and placed by solar racking, and residential solar system options are primarily tile roof mounting system,tilt solar racking and so on.

Inverters:

DC electrical energy cannot be supplied directly for use by household appliances and the grid, so an inverter is needed to convert DC to AC power. An inverter is an important part of a solar system that converts the DC energy generated from the PV modules into AC energy that meets the requirements of home appliances and the grid.

Battery system (optional):

Some home solar systems are also equipped with a battery system for storing excess solar power. When the solar system produces more electricity than the home needs, the excess energy is stored in a battery. At night or during bad weather, the home can draw its electrical supply from the battery system. This provides system independence and reliability.

Grid connection:

Most home solar systems are connected to the electric grid in a configuration known as "grid-tied PV". When the solar system produces more electricity than the home needs, the excess electricity is fed back into the grid. This is referred to as "feed-in" or "grid reversal". When the solar system is unable to meet the home's needs, electricity is automatically taken from the grid to ensure that the home's electricity needs are met.

Monitoring Systems:

Many home solar systems are also equipped with a monitoring system for real-time monitoring of system performance and power generation. A monitoring system allows a home to see how much power the solar system is generating, its power output, and how well the system is operating. This helps improve system efficiency and identify potential malfunctions or problems in a timely manner.

In conclusion, residential solar systems work by using solar energy to convert light energy into electricity. Photovoltaic modules convert sunlight into direct current (DC) electrical energy, and an inverter converts the DC to AC to supply household electrical equipment. The battery system stores excess electricity and connects to the grid to complement and reverse the flow of electricity. A monitoring system allows households to monitor system performance and power generation in real time to ensure proper operation and optimize efficiency. Choosing the right solar system is very important to increase energy production. At the same time, solar racking, as a necessary component of a solar system, choosing a quality solar racking manufacturer plays a key role in the performance, stability and longevity of the solar system.POWERACK has years of experience in racking, so please feel free to contact us. With a home solar system, we can reduce our dependence on traditional energy sources, realize the use of clean, renewable energy, and contribute to environmental protection.

When it comes to properly capturing solar energy, choosing the correct battery is critical for best performance and long-term dependability. The lithium iron phosphate (LiFePO4) battery stands out as a leading candidate for solar applications among the different battery alternatives available. In this post, we'll look at why LiFePO4 is regarded as the finest solar battery, with real-world examples demonstrating its benefits in residential energy storage systems.

Actual Case 1: The Smith family decided to invest in a solar energy system for their home, including a home energy storage battery. After careful research and consultation with AJPOWER, they opted for a LiFePO4 battery to complement their solar panels, inverter, and MPPT charge controller. The Smiths were impressed by the LiFePO4 battery's exceptional performance and longevity, with a lifespan of up to 10 years and a higher number of charge-discharge cycles compared to other battery chemistries. This robust battery technology allowed the Smith family to maximize their solar energy usage, store excess energy generated during the day, and utilize it during peak demand or when the sun was not shining. The LiFePO4 battery proved to be the ideal choice for their home energy storage system, ensuring reliable and sustainable power.

Actual Case 2: AJPOWER worked closely with the Johnsons, who were looking for a personalized scheme design for their solar-powered off-grid cabin. As the Johnsons desired a reliable and efficient energy storage solution, AJPOWER recommended a LiFePO4 battery due to its superior performance characteristics. The LiFePO4 battery's high energy density, fast charging capabilities, and resistance to high temperatures perfectly matched the Johnsons' requirements. With the personalized scheme designed by AJPOWER, the Johnsons achieved uninterrupted power supply, even during extended periods of cloudy weather. The LiFePO4 battery proved to be the ideal choice for their off-grid solar system, ensuring reliable power for all their needs.

AJPOWER's LiFePO4 battery excels in numerous critical areas as part of their comprehensive home energy storage solutions. It has a greater energy density, which means it can store more energy in a smaller space, making it useful for space-constrained applications. Furthermore, compared to other battery chemistries, LiFePO4 batteries have a decreased danger of thermal runaway, making them safer and more stable. They also have a wide working temperature range, allowing them to function well in a variety of settings. AJPOWER's personalised scheme design service guarantees that each customer's specific energy needs are addressed by providing bespoke solutions that connect LiFePO4 batteries with solar panels, inverters, and MPPT charge controllers.

If you are thinking about installing a solar energy system, AJPOWER is your reliable partner in developing customised plans. Contact our professional staff to discuss your energy requirements and the potential of a LiFePO4 battery for your home energy storage system. With AJPOWER's experience and quality solutions, you may enjoy the benefits of dependable, efficient, and sustainable electricity.

We are not only keeping up with the newest breakthroughs in battery technology at AJPOWER; we are at the forefront of it. As the world's reliance on lithium-ion batteries grows, from smartphones to electric vehicles, we recognize the need of not only enhancing their performance but also going beyond to more sustainable solutions.

Pushing the Boundaries of Battery Efficiency

In the field of battery technology, the procedure is straightforward yet critical. The movement of lithium ions between electrodes determines the duration of your charge and the total battery longevity. At AJPOWER, we're committed to improving battery efficiency so you can get the most out of your gadgets.

Extending Battery Life: Best Practices

We recommend against leaving your battery plugged in and completely charged for lengthy periods of time. Maintaining a battery at full charge hastens depreciation. This is especially important for devices like laptops, which are frequently plugged in continually.

Temperature Matters: Protecting Your Battery

When batteries are exposed to extreme temperatures, they are most susceptible to deterioration. Avoid keeping your smartphone in direct sunlight or heated settings, since this can reduce battery life dramatically. At AJPOWER, we focus developing solutions that are both efficient and durable in a variety of environments.

Looking to the Future: Sustainable Battery Solutions

While lithium-ion technology remains the industry standard, we are currently investigating alternatives such as lithium iron phosphate (LiFePO4) batteries for their potential in developing more sustainable energy storage solutions. These batteries have the potential to be both sustainable and cost-effective, paving the way for a more ecologically conscious future.

AJPOWER is dedicated to setting the standard for sustainable battery solutions. Our lithium iron phosphate batteries and home energy storage systems are examples of this commitment, providing not only efficiency but also a forward-thinking approach to energy storage.

A group of Chinese scientists has revealed a fast-charging lithium-ion battery that can charge a cellphone to 90% in only 10 minutes. This invention has the potential to reshape the landscape of energy storage options.

The Science Behind the Breakthrough

A graphite-based battery with an ultrathin phosphorous layer on its surface is at the core of this ground-breaking invention. This layer is converted to a crystalline solid electrolyte interphase with strong ionic conductivity in-situ. As a result, the battery has unrivaled charging efficiency and speed.

Unprecedented Charging Speeds

Pouch cells outfitted with this graphite anode performed well in rigorous testing undertaken by Huazhong University of Science and Technology researchers. The battery reached 80% capacity in just 6 minutes and 91.2% capacity in under 10 minutes.

Sustainable Performance and Longevity

This fast-charging lithium-ion battery not only has quick charge times, but it also has a long lifespan. The battery's capacity retention maintained at an amazing 82.9% across an astonishing 2,000 cycles in a scenario with a 6-minute charging pace.

Market Potential and Manufacturing Simplicity

The battery's excellent electrochemical capabilities, along with its low-cost and simple production technique, make it a game changer in the industry. The possibilities are numerous, ranging from mobile devices to electric cars and beyond.

The Future of Energy Storage Solutions

While AJPOWER has a long history of offering sophisticated energy solutions, this discovery marks an important step forward in our continued commitment to innovation. Looking ahead, our research and development teams are preparing to incorporate this cutting-edge technology into our existing line of lithium iron phosphate (LiFePO4) batteries and residential energy storage systems.

We're not only altering the future of energy storage with this groundbreaking development; we're transforming it.

In the solar energy industry, TOPCon cell technology, as an emerging high-efficiency photovoltaic technology, is gradually emerging. This article will delve into the composition of TOPCon cells, factors affecting their conversion efficiency, advantages compared to PERC technology, and the application of SpolarPV's bifacial dual-glass modules in TOPCon technology.

The Composition of TOPCon Cells

TOPCon cells are mainly composed of a substrate, an emitter, a tunneling oxide, a passivation layer, and a contact layer. The substrate usually adopts silicon wafers, and the emitter is formed through phosphorus doping. The tunneling oxide layer is used to reduce surface recombination and reflection losses. The passivation layer is used to improve the conversion efficiency of the cell, and the contact layer is used to form a metal electrode.

Factors Affecting the Efficiency of TOPCon Cells

Factors affecting the conversion efficiency of TOPCon cells include substrate material, emitter doping concentration, thickness of the tunneling oxide layer, quality of the passivation layer, quality of the contact layer, temperature, and intensity of illumination. By optimizing these factors, the electrical performance and light absorption efficiency of the cell can be improved, while reducing surface recombination and reflection losses.

Advantages of TOPCon Technology Compared to PERC Technology

Compared with traditional PERC technology, TOPCon technology has higher conversion efficiency, better temperature stability, and anti-light decay performance. This enables TOPCon cells to more effectively convert solar energy into electrical energy, providing a more reliable energy solution for users in practical applications.

SpolarPV's TOPCon Bifacial Dual-glass Modules

SpolarPV, as a leader in the solar energy field, launched 700W TOPCon bifacial dual-glass modules. These modules adopt 210mm solar cell, with a conversion efficiency of up to 22.57%,bifacial generation, and dual-glass structure, and have high mechanical strength, which can operate stably in various environments. SpolarPV's TOPCon bifacial dual-glass modules provide users with efficient, reliable, and durable solar energy solutions.

Through this article, we have learned about the composition of TOPCon cells, factors affecting their efficiency, advantages compared to PERC technology, and SpolarPV's innovative achievements in this field. With the continuous development of the solar energy industry, TOPCon technology is expected to bring us a more efficient and reliable way of solar energy utilization.

Solar energy is rapidly becoming a dominant player in the global energy landscape, and advances in solar panel technologies have played a pivotal role in this transition. One of the most innovative developments in the field is the TOPCon (Tunnel Oxide Passivated Contact) technology, which has enabled the creation of highly efficient solar panels. In this blog, we will explore the composition of TOPCon modules and the advantages of this technology over traditional PERC (Passivated Emitter Rear Contact) panels. We will also introduce SpolarPV's cutting-edge TOPCon modules, which offer impressive performance and reliability.

Composition of TOPCon Modules

TOPCon modules are designed with precision to optimize the conversion of solar energy into electricity. The key components of a TOPCon module are as follows:

1.  Top Glass : The top layer of glass serves as a protective shield, safeguarding the solar panel against external environmental factors, including UV radiation, dust, rain, and mechanical wear.

2.  TOPCon Layer : The crucial component in TOPCon technology, this tunnel oxide passivated contact layer is applied to the front side of the solar panel, reducing electron recombination and improving overall performance.

3.  Front-side Electrode : This layer collects the electrons generated by the sunlight absorbed by the solar cells. In TOPCon panels, it's designed to work seamlessly with the TOPCon layer.

4.  Solar Cells : The heart of the panel, solar cells are typically made of silicon and are responsible for converting sunlight into electricity.

5.  Rear Glass : The backside of the module is protected by another layer of glass, providing mechanical support and additional durability.

6.  Wires and Connectors : These components facilitate the transfer of electricity generated by the solar cells to the output, allowing the captured solar energy to be utilized effectively.

 Advantages of TOPCon Technology 

TOPCon technology offers several advantages over the traditional PERC technology:

1.  Higher Efficiency : TOPCon panels achieve higher conversion efficiencies due to the reduction in electron recombination, resulting in greater energy output for the same amount of sunlight.

2.  Improved Durability : The use of dual-glass in TOPCon modules enhances their mechanical strength, making them more resistant to wear and tear, ensuring long-term performance.

3.  Bifacial Generation : TOPCon modules often support bifacial generation, which allows them to capture sunlight from both sides, increasing energy production.

 SpolarPV's TOPCon Modules 

At SpolarPV, we take pride in offering state-of-the-art TOPCon modules. Our 700W TOPCon modules are designed to deliver impressive power outputs, ranging from 685W to 700W, thanks to their utilization of 210mm solar cells. These modules boast an exceptional conversion efficiency of 22.57%, ensuring that more solar energy is converted into electricity. With their dual-glass construction, they are exceptionally robust, guaranteeing longevity and reliable performance.

In conclusion, TOPCon technology represents a significant leap forward in solar panel efficiency and durability. SpolarPV's TOPCon modules are a testament to our commitment to providing cutting-edge solar solutions, offering not only exceptional performance but also a longer lifespan. Harness the power of the sun with SpolarPV's advanced TOPCon modules, and make the most of renewable energy for a brighter future.

There are many factors that affect the power generation and efficiency of a solar station with the same capacity. Today SAIL SOLAR will lead you to have a studying.

1. Solar Radiation

When the conversion efficiency of solar panel is constant, the power generation of the solar system is determined by the intensity of solar radiation. Normally, the utilization efficiency of solar radiation by solar systems is only about 10%. Therefore, solar radiation intensity, spectral characteristics, and climate conditions must be taken into consideration. If the current year's power generation exceeds or falls short of the standard, it is likely that the overall solar radiation for that year deviates from the average.

 2. Tilt angle of solar panel

The azimuth angle of solar panel is generally selected in the south direction to maximize the power generation per unit capacity of solar station.

As long as it is within ±20° of due south, it will not have much impact on the power generation. If conditions permit, it should be as far as 20° to the southwest.

The above angle recommendations are based on installation in the Northern Hemisphere, and vice versa for the Southern Hemisphere.

Tilt angles vary from place to place, and local installers are more familiar with the optimal tilt angle for components. If it is a pitched roof, in order to save brackets, many of them will be laid flat on the roof, regardless of the tilt angle, for the sake of beauty.

3. Solar panel efficiency and quality

There are many solar panel types to choose from on the market, such as polycrystalline silicon, monocrystalline silicon solar panel, etc. Different solar panels have different power generation efficiency, attenuation and quality.

The most important thing is must purchase them from regular channels at a reasonable market price. Only in this way can you ensure stable and reliable power generation for 25 years.

4. Solar panel matching loss

Any series connection will cause current loss due to the current difference of solar panels, and any parallel connection will cause voltage loss due to the voltage difference of solar panels. Losses may reach more than 8%.

In order to reduce the matching loss and increase the power generation capacity of the solar  station, we should pay attention to the following aspects:

1)To reduce matching losses, try to use solar panels with consistent current in series;

2)The attenuation of solar panels should be kept as consistent as possible;

3)Isolation diode.

5. Temperature (ventilation)

Data shows that when the temperature rises by 1°C, the output power of crystalline silicon solar panel decreases by 0.04%. Therefore, it is necessary to avoid the impact of temperature on power generation and maintain good ventilation conditions for the solar panels. 

6. Effect of dust

The crystalline silicon solar panel is made of tempered glass. If it is exposed to the air for a long time, organic matter and a large amount of dust will naturally accumulate. Dust falling on the surface blocks the light, which will reduce the output efficiency of the solar panels and directly affect the power generation. At the same time, it may also cause a "hot spot" effect on the solar panels, causing damage to the components. solar panel station must be cleaned in time.

7.Shadows, snow cover

During the site selection process of the solar solution, attention must be paid to the light shielding. Avoid areas where light may be blocked. According to the circuit principle, when solar panels are connected in series, the current is determined by the smallest solar panels Therefore, if there is a shadow on one solar panels, it will affect the power generation of this solar panels. Therefore, when installing a solar power station, you must not be greedy for large capacity. You must consider the area of the roof and whether there is any obstruction around the roof.

8. Maximum output power tracking (MPPT)

MPPT efficiency is a key factor in determining the power generation of solar inverters, and its importance far exceeds the efficiency of the solar inverter itself. MPPT efficiency is equal to hardware efficiency times software efficiency. Hardware efficiency is mainly determined by the accuracy of the current sensor and the accuracy of the sampling circuit; software efficiency is determined by the sampling frequency.

There are many ways to implement MPPT, but no matter which method is used, the solar panel power changes must first be measured and then react to the changes. The key component here is the current sensor. Its accuracy and linear error will directly determine the hard efficiency, and the sampling frequency of the software is also determined by the accuracy of the hardware.

9. Reduce line losses

In solar systems, cables account for a small part, but the impact of cables on power generation cannot be ignored. It is recommended that the line loss of the system's DC and AC loops be controlled within 5%. The cables in the system must be well prepared, including the insulation performance of the cable, the heat-resistant and flame-retardant performance of the cable, the moisture-proof and light-proof performance of the cable, the type of cable core, and the size and specification of the cable.

Therefore, in daily operation and maintenance, we need to check whether the lines are damaged and whether there is leakage or other conditions. Especially after every typhoon or hailstorm, it is essential to check whether the lines and connectors are loose.

10. Inverter efficiency

The solar inverter is the main component and important component of the solar system. In order to ensure the normal operation of the power station, the correct configuration and selection of the inverter is particularly important.

In addition to the various technical indicators of the entire solar power generation system and the product sample manual provided by the manufacturer, the configuration of the inverter generally needs to consider the following technical indicators: 1. Rated output power 2. Output voltage adjustment performance 3,Overall machine efficiency 4.Start-up performance.

There are not many daily environments that affect the efficiency of the inverter. Pay attention to installing the inverter in a cool place and keep the surroundings ventilated to facilitate the heat dissipation of the inverter. Especially in summer and autumn, normal heat dissipation can maintain the power generation efficiency of the inverter.