Technology development trend of photovoltaic cells - P to N is imperative.

Photovoltaic solar cells technology iterations continue to focus on “efficiency enhancement” + “cost reduction” At present, the average mass production efficiency of PERC cells is 23.2%, and the theoretical conversion efficiency limit is 24.5%. The mass production efficiency has already approached the theoretical limit of efficiency, making it difficult to increase the efficiency of PERC cells significantly. N-type solar cells technology iteration is imperative.

Compared with traditional P-type solar cells, N-type solar cells have the advantages of high conversion efficiency, high bifaciality, low temperature coefficient, almost no light decay, and good weak light effect. Currently, mainstream N-type solar cells include TOPCon, HJT, IBC, etc. TOPCon has high limit efficiency and low cost of production line transformation; HJT has high mass production efficiency and a clear cost reduction route; IBC conversion upper limit is higher, but economical improvement still takes time. At present, the actual mass production yield rate of Topon is 24%-25.2%, and the actual mass production efficiency of HJT is about 25%, which is 1%-2% higher than that of P-type PERC cells.

The first generation of cells—silicon-based solar cells: the battle between monocrystalline and polycrystalline mainstreams

In 1839, French scientist A.E. Becquerel discovered the photovoltaic effect. When two pieces of platinum metal were clicked and inserted into an acidic solution, an electric current flowed between the electrodes, opening the door to the world of photovoltaics. By 1954, the United States produced the first monocrystalline silicon solar cell, marking the birth of photovoltaic power generation technology.

P-type and N-type iterations, leading XBC solar cell

In recent years, as the conversion efficiency of P-type solar cell has gradually approached the “ceiling”, it has become a general trend to iterate from P-type to N-type technology. As far as the first half of 2023 is concerned, about 19.55% of N-type solar module projects have been targeted, and N-type shipments and production capacity of various photovoltaic companies have increased to varying degrees.

According to the latest module efficiency published on the report, the top-ranked modules are basically N-type solar panels.

On September 5th, 2023, LONGi announced its bet on XBC solar cells. TOPCON and HJT use new passivation contact structures to improve the passivation effect and thereby increase conversion efficiency. The front of XBC solar cells is not blocked by metal grid lines, eliminating the front metal electrode structure. , able to maximize the utilization of incident light.

Compared with HIT solar cells and XBC solar cells, TOPCON solar cells have better compatibility with P-type solar cells production lines and lower transformation costs. The transformation investment per GW is about 50-70 million, making it main layout object in the current N-type solar cell production capacity of photovoltaic companies .

France has submitted an updated National Energy and Climate Plan (NECP), raising its solar photovoltaic installed capacity target to 60GW in 2030.

Compared with the previous NECP submitted in 2019, the new draft adds at least 14GW of installed photovoltaic capacity. By 2035, France aims to increase its cumulative photovoltaic installed capacity to 75-100GW.

Although this increase may not be high compared with neighboring countries such as Spain and Italy. These two countries aim to have PV installed capacity of 76GW and 80GW respectively by 2030, especially Spain, which plans to nearly double its previous solar PV target.

Nuclear power appears to remain an important part of France’s electricity decarbonization goals, as the draft NECP shows that the word “nuclear power” is mentioned 104 times and “solar” 19 times, many of which are related to solar heat. Last year, nuclear power accounted for 62.2% of France’s electricity generation, wind power accounted for 8.7%, and solar power accounted for only 4.2%.

As of the end of 2022, France’s photovoltaic installed capacity was 15.7GW, of which 2.6GW was added last year, accounting for more than half of the total newly installed renewable energy capacity in 2022 (more than 5GW).

Other updated targets include France’s plan to add 5.5-7GW of new photovoltaic capacity per year. Most of the new capacity is expected to come from large-scale ground-mounted PV, accounting for 65%, rooftop commercial and industrial will account for 25%, and the remaining 10% will be household solar.

According to a recent report from The Insight Partners, the lithium-ion battery energy storage market is on the rise. It is expected to be worth $26.22 billion by 2028, up from $7.97 billion in 2022, with a strong Compound Annual Growth Rate (CAGR) of 13.9% from 2023 to 2028. This uptick is reshaping the global energy storage landscape, and industry leaders are bracing for rapid expansion.

Global Trends:

The market is divided into four regions: North America, Europe, Asia-Pacific (APAC), and the Rest of the World (RoW). APAC led the charge in 2022, and it is expected to maintain the fastest growth rate from 2023 to 2028.

Key Players:

LG Chem Ltd., CATL, Samsung SDI, Panasonic Corporation, and BYD Co., Ltd. are driving innovation and influencing the future of lithium-ion battery technology.

End-User Landscape:

The market caters to the residential, commercial, industrial, and utility industries. The utility sector took the lead in 2022, owing to the increasing adoption of lithium-ion batteries for their efficiency and grid stabilization capabilities.

Sustainable Energy Transition:

Lithium-ion batteries are quickly becoming the preferred option for power utilities seeking to store renewable energy. This is consistent with the global shift toward sustainability. These batteries are not only environmentally friendly, but they also provide dependable backup power during peak demand.

AJPOWER’s Contribution:

AJPOWER is committed to driving innovation in lithium iron phosphate batteries (LiFePO4) in this era of energy transformation. Our cutting-edge power batteries and home energy storage solutions are at the forefront of this energy revolution. As the lithium-ion battery market expands, AJPOWER is poised to contribute to a more sustainable and energy-efficient future. Join us on this exciting journey as we work together to empower tomorrow.

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:

When AC grid power is available, inverter charges battery, at the same time, AC grid power bypass through inverter to household appliances, such as refrigerator, TV. When AC grid power is off, it will automatic transfer switch to battery power and convert DC to AC power.

2. Wind or Solar Power system:

Convert DC to AC power. When battery power is lacking, it will automatic transfer to grid power for powering continuously.

Solar energy has emerged as a sustainable and environmentally friendly alternative to traditional power sources. To harness the maximum potential of solar power, an essential component is a solar pure sine wave inverter. But how does it work?

A solar pure sine wave inverter is a device that converts the direct current (DC) produced by solar panels into alternating current (AC) compatible with household appliances. Unlike modified sine wave inverters, which produce a choppy and less efficient AC output, pure sine wave inverters generate a smooth and clean electrical signal that mimics the utility grid power.

The secret behind the smooth output lies in the internal circuitry of the inverter. The DC power from the solar panels enters the inverter, where it undergoes a two-step process. First, the DC power is transformed into a high-frequency AC signal using power transistors. Next, this high-frequency AC is converted into a pure sine wave using filtering and modulation techniques.

This pure sine wave output ensures that sensitive electronic devices, such as laptops, televisions, and medical equipment, run smoothly without any interference or damage. It also maximizes the efficiency of appliances, reducing energy waste.

Solar pure sine wave inverters come in various sizes and capacities to cater to different energy demands. Some advanced models also include features like built-in MPPT (Maximum Power Point Tracking) charge controllers, allowing for optimal solar power utilization.

With their reliable and efficient performance, solar pure sine wave inverters have become an essential component of residential and commercial solar power systems. They enable users to make the most of their solar energy investments, ensuring a seamless and uninterrupted power supply.

Investing in a solar pure sine wave inverter is not only an eco-friendly choice but also a smart financial decision in the long run. It not only reduces reliance on conventional power sources but also saves money by harnessing the abundant and free energy from the sun.

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.