شريك
Growatt
مجموعة العملاء
بطارية
بطارية ليثيوم / حمض الرصاص ذات عمر خدمة طويل بكامل طاقتها ، وخلايا بطارية للنظام الشمسي ، ونظام طاقة الرياح ، ونظام تخزين الطاقة المحمول ، والنسخ الاحتياطي للطاقة في حالات الطوارئ ، ومحطة الطاقة إلخ. صيانة مجانية
النظام الشمسي
قياسي / حسب الطلب هجين ، على الشبكة ، خارج الشبكة مجموعات النظام الشمسي. حلول وقفة واحدة ل المشاريع التجارية والمقيمية. توفير الوقت والتكلفة لتجميع مكونات النظام الأخرى.
بطارية
بطارية
بطارية ليثيوم / حمض الرصاص ذات عمر خدمة طويل بكامل طاقتها ، وخلايا بطارية للنظام الشمسي ، ونظام طاقة الرياح ، ونظام تخزين الطاقة المحمول ، والنسخ الاحتياطي للطاقة في حالات الطوارئ ، ومحطة الطاقة إلخ. صيانة مجانية
النظام الشمسي
النظام الشمسي
قياسي / حسب الطلب هجين ، على الشبكة ، خارج الشبكة مجموعات النظام الشمسي. حلول وقفة واحدة ل المشاريع التجارية والمقيمية. توفير الوقت والتكلفة لتجميع مكونات النظام الأخرى.
معلومات عنا
حول سويت باور
Xiamen Sweet Power Tech Co.، Ltd. هي مزود محترف لحلول أنظمة الطاقة الشمسية لأكثر من 10 سنوات. نحن نقدم خدمة محطة واحدة على مجموعات نظام الطاقة الشمسية ، بما في ذلك على الشبكة ، وخارج الشبكة ، والهجين ، ونظام تخزين طاقة بطاريات الرصاص / بطاريات الليثيوم إلخ ، مع دعم شامل من تقييم المشروع ، والتصميم المسبق ، ورسومات نظام التركيب إلى دليل التثبيت ، من واحد المنتج لإكمال مجموعات نظام الكهروضوئية. علاوة على ذلك ، لدينا فريق الهندسة الخاص بنا وفريق RD ، المخصص ، OEM ، ODM كلها متاحة لتلبية متطلبات مشاريعك المختلفة. من قيمنا أن ندعم عملائنا بمنتجات عالية الجودة وأنظمة عمر خدمة طويلة عالية الأداء. تتمتع جميع منتجاتنا بضمان رئيسي في الصناعة مع جميع أنواع الشهادات. نتطلع إلى التعاون معكم معًا لجعل العالم صديقًا للبيئة.
المزيد عن
2012
2012
|0|
5
5
.6GW
الاهلية
186
186
+
|0|
86
86
+
|0|
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شركة Xiamen Sweet Power Tech Co. ، Ltd. هي شركة رائدة في مجال منتجات الطاقة الشمسية وحلول الخدمة. الخدمة الرئيسية بما في ذلك محولات الطاقة الشمسية ومحولات الطاقة الشمسية الهجينة
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Take customers to visit the battery cell source factory
Jan 29, 2023 Take customers to visit the battery cell source factory
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How to combine solar power supply system and energy storage technology?
May 16, 2024 How to combine solar power supply system and energy storage technology?
The combination of solar power supply system and energy storage technology is mainly achieved through the following methods:   1. Working principle of solar power supply system: ●Solar panel is the core part of the solar power supply system, which consists of many solar cell units. Each solar cell unit is similar to a micro power plant, absorbing solar energy and stimulating the flow of electrons to generate voltage and current. ●When sunlight shines on a solar panel, the semiconductor material in the solar panel absorbs light energy, generates pairs of electrons and holes, and generates a potential difference inside the semiconductor, thereby forming voltage and current. ●Solar panels connect multiple solar cell units in series and parallel to meet the power needs of different devices. When a solar panel absorbs solar energy, pairs of electrons and holes generate an electromotive force inside the semiconductor, causing a voltage to be generated across the solar panel. Through wire connection, solar panels can transmit the generated electrical energy to the device to realize the conversion and supply of electrical energy.   2. Application of energy storage technology:  ●The application forms of physical energy storage include pumped hybrid energy storage, compressed air energy storage and flywheel energy storage. At present, the most mature large-scale energy storage method is pumped hydro storage. Its basic principle is to use excess power when the power grid is at low times to pump water as a liquid energy medium from a low-elevation reservoir to a high-elevation reservoir, and then pump it back into the water when the power grid is at peak load. Water in the upper reservoir flows back to the lower reservoir to drive a hydroelectric generator to generate electricity. ●The application forms of electrical energy storage include supercapacitor energy storage and superconducting energy storage.   3. Combination of solar power supply system and energy storage technology: ●The electric energy generated by the solar power supply system can be directly used for oil field production and management, while excess electric energy can be stored through energy storage technology. ●When solar energy resources are insufficient or solar energy cannot be obtained, energy storage equipment can release stored electrical energy to provide power support for oil field production and management. ●This combination can ensure that oilfield production and management can obtain stable power supply under any circumstances, improving the production efficiency and safety of the oilfield.
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Leasing model of large-capacity portable energy storage power supply: Let convenience and environmental protection coexist
May 14, 2024 Leasing model of large-capacity portable energy storage power supply: Let convenience and environmental protection coexist
With increasing emphasis on environmental protection and sustainable development, the leasing model of large-capacity portable energy storage power supplies is gradually emerging. This model can not only meet people's needs for portable energy storage power, but also reduce resource waste and environmental pollution. This article will deeply explore the advantages and prospects of the large-capacity portable energy storage power supply leasing model. With the continuous advancement of science and technology, large-capacity portable energy storage power sources have become an indispensable partner in people's daily lives. However, purchasing a large-capacity power supply may require a large capital investment, and after the end of its service life, the battery is difficult to recycle and reuse, placing a certain burden on the environment. In order to solve these problems, the rental model of large-capacity portable energy storage power supply came into being. The leasing model allows more people to enjoy the convenience of large-capacity power supply at a lower cost. Whether in camping, traveling or outdoor sports, the rental model provides people with more flexible and affordable options. The benefits of leasing large-capacity portable energy storage power supply are not only reflected in economic aspects, but also have many environmental protection and energy-saving advantages. First, the leasing model can reduce resource waste and environmental pollution. Rather than everyone buying one power supply, in the rental model, one power supply can be shared by multiple users. In this way, it not only reduces the consumption of materials such as batteries, but also reduces energy consumption and waste emissions during the production process. Secondly, the leasing model can extend the service life of large-capacity portable energy storage power supplies. Through professional maintenance and management, leasing companies can conduct regular inspections and repairs on power supplies, improve battery recycling and reduce waste. This is not only a guarantee for users, but also beneficial to the sustainable development of the environment. In addition, the leasing model can also meet users' needs for new technologies. With the advancement of technology, new large-capacity portable energy storage power supplies continue to emerge, with higher capacity and faster charging speeds. Through the leasing model, users can flexibly try new products and stay at the forefront of technology. Looking to the future, the leasing model of large-capacity portable energy storage power sources has broad development prospects. It not only meets people's needs for convenience and economy, but also fits in with the concepts of environmental protection and sustainable development. As more people become more aware of environmental protection, the leasing model will become an important development direction for the large-capacity portable energy storage power supply market. In summa...
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2024 The 3rd China Exhibition for Sustainable & Prefabricated Building Materials and Intelligent construction
May 13, 2024 2024 The 3rd China Exhibition for Sustainable & Prefabricated Building Materials and Intelligent construction
11-12 In May, SWT-POWER participated in the 2024 The 3rd China Exhibition for Sustainable & Prefabricated Building Materials and Intelligent construction held in Guangdong. At this exhibition, we discovered the huge potential for the combined development of space capsule houses and energy storage systems. Because some space capsule houses and mobile houses are mostly set up in places isolated from the city power supply. For family houses, traditional diesel generators are too noisy and are not suitable for use. Therefore, solar energy storage systems are the best choice for such scenarios, both in terms of efficiency and cost. Solar off-grid energy storage systems are also suitable for houses without electricity in remote areas, such as farms, campsites, etc. If your home needs customization, please feel free to contact us!!!!
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Analysis of Sungrow Power Titian 2.0 Energy Storage Products
May 09, 2024 Analysis of Sungrow Power Titian 2.0 Energy Storage Products
First, let’s take a look at the battery module box. The 314Ah batteries inside the battery module box are grouped in the form of 1P104S. The 1P26S batteries inside are connected in series and parallel to form a battery module, which is divided into 4 battery modules. There is a fused MSD mounted on the front panel. Installing a fuse can provide short-circuit protection for the batteries in the package. The series voltage of 104 batteries is a bit high, and installing an MSD can play an internal isolation/disconnection role. The cabinet adopts a shell-cooled integrated lower cabinet and upper cover design. The battery cluster is composed of 4 battery module boxes. There are 9 slots in a row in the container. The upper and lower battery module boxes form a cluster. The battery clusters are connected in series to form a group 1P416S. There are two configuration designs for battery cluster energy output; one is a switch box and the other is an embedded string PCS. Let’s talk about the first switch box solution first. Looking at the DC switch box solution from the promotional materials provided by Sungrow, the switch box seems to use liquid cooling for heat dissipation. It may be a mistake. The cost of liquid cooling for the switch box is a bit high. , this is not necessary. From another picture, it seems that the switch box should dissipate heat naturally. There are two DC input interfaces on the front panel of the switch box, which combine the two clusters of batteries into one output. The second string PCS solution, the picture below shows Sungrow’s 210kW string PCS using liquid cooling. Each 210kW PCS is connected to a cluster of 417.99kWh batteries. Two positive and negative pole connections come out of each of the two clusters of batteries. They are first connected to the DC sides of the two PCSs through the junction box. The DC side of the junction box is equipped with a fuse. level short circuit protection. The two AC lines from the two PCS are combined into one output in the junction box. The picture below shows the installation method of the junction box and two PCSs. The three are arranged in front and back and enter the cabin in sequence. This is a 4-hour energy storage system configuration plan. One of the PCSs can be removed and the DC lines can be connected to two points in one connection in the junction box. A 210kW PCS is connected to two clusters of 417.99kWh batteries. This design allows for flexible matching. A liquid-cooled unit is housed in the electrical compartment. This liquid cooling unit is customized and developed by Sungrow from a supplier. The liquid cooling unit cools and dissipates heat for the battery and PCS. It is different from the 5MWh energy storage battery container liquid cooling system of other manufacturers and needs to be considered. Liquid cooling for PCS. The design of the fire protection system adopts two options: gas fire protection and water fire protection. Gas firefighting is a cabin-level submerged fi...
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Buffett is bullish on energy storage! The global energy storage market has great potential
May 07, 2024 Buffett is bullish on energy storage! The global energy storage market has great potential
China Energy Storage Network News: Facing the challenges of energy change, technological innovation and the ability to adapt to the local policy environment will be crucial to the company's sustainable development. China Energy Storage Network learned that at 10:15 pm on May 4th, Beijing time, the 2024 Berkshire Hathaway Annual Shareholders Meeting was grandly held in the American town of Omaha. This shareholder meeting attracted tens of thousands of investors from all over the world, and important figures such as Bill Gates and Apple CEO Tim Cook also attended the event. Buffett speaks at the 2024 shareholder meeting The entire shareholder meeting demonstrated the importance Buffett and his successor Abel attach to energy storage and battery technology, as well as their long-term plans in the field of renewable energy. Buffett said that Berkshire Hathaway must ensure that users have the possibility of lighting every day and have the hope of using lights. Fossils were once the oldest energy source. In terms of power generation, there are now issues to consider. It's energy storage. Abel pointed out that current energy storage batteries may only have four hours of power, and there are still economic challenges that require continuous advancement in technology. Although renewable energy has great prospects, continuous improvement of technology is key to ensuring its reliability and economy. Abel believes that investors should find a balance between technological innovation and traditional energy sources to ensure a stable and reliable power supply to customers. He particularly emphasized that policies, regulations, and regulatory requirements vary from region to region, so local environmental and policy factors must be fully considered when making energy investments to ensure the stability and sustainability of the business. The speeches by Buffett and Abel also sent an important signal: in the face of the challenges of energy change, technological innovation and the ability to adapt to the local policy environment will be crucial to the company's sustainable development. In fact, it is not sudden that Buffett and Abel are optimistic about energy storage. Tesla's first-quarter financial report released on April 24, Beijing time, showed that the company's total revenue fell by 9% in the first quarter, and its net profit fell sharply by 55%. However, its energy production and storage jumped to Tesla's profit margin. Top business. Specifically, in the first quarter of this year, Tesla's energy storage deployment continued to increase, reaching 4.1 GWh, breaking the previous record. In the first quarter, energy generation and storage revenue and gross profit hit record highs: revenue increased 7% year-over-year and gross profit increased 140% year-over-year. Musk previously stated in the fourth quarter 2023 earnings call that Tesla’s energy storage business will grow much faster than its electric vehicle business. Its first quarter financial report dat...
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Solar and Storage Live Philippines 2024
Apr 30, 2024 Solar and Storage Live Philippines 2024
Solar and Storage Live Philippines 2024 20 May 2024 - 21 May 2024 SWT-POWER BOOTH: NO.2-E01 SMX Convention Center Manila, Pasay City, Metro Manila, Philippines, Manila, Philippines
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Do you know the difference between on-grid and off-grid?
Apr 25, 2024 Do you know the difference between on-grid and off-grid?
On-grid power generation system It consists of components, grid-connected inverter, photovoltaic meter, load, two-way meter, grid-connected cabinet and power grid. The direct current generated by sunlight is converted into alternating current through the inverter, and then supplied to the load and connected to the grid. It can be directly used for household loads, and excess electricity can be sold into the grid. However, grid-connected inverters generally have a two-pole structure of boost and inverter. Off-grid power generation system It consists of photovoltaic modules, solar controllers, inverters, batteries, loads, etc. It does not rely on the power grid and operates independently. It is generally used in remote areas, areas without electricity, islands, communication base stations and street lights. When there is light, the solar energy is converted into electrical energy, and the integrated solar controller supplies power to the load and charges the battery; when there is no light, the battery power can be used to power the AC load through the inverter. The cost of its battery accounts for 30%-50% of the off-grid power generation system. Off-grid inverters generally have a four-level structure of controller, boost, inverter and isolation. Hybrid energy storage system It is composed of photovoltaic modules, solar and off-grid all-in-one machine, battery, load, etc. It is widely used in scenarios where there are frequent power outages or when photovoltaic power cannot be used for self-use and is not available for the grid. The price of self-consumption electricity is more expensive than the grid electricity price, and the peak electricity price is more expensive than the trough electricity price. The photovoltaic array converts solar energy into electrical energy when there is light, and the solar controller and inverter all-in-one machine supplies power to the load and charges the battery at the same time; when there is no light, the battery supplies power to the solar controller and inverter all-in-one machine. Then power the AC load function. Dual mode switching to ensure power supply needs. The photovoltaic on-grid system relies on the power grid and adopts the working mode of "self-use for self-use and grid-connection of surplus electricity" or "full grid-connection", while the off-grid system does not rely on the power grid and relies on "storage and use at the same time" or "store first and then use". working mode. From a comprehensive perspective of composition, cost, and efficiency, the cost of photovoltaic off-grid systems is relatively high, and the surplus electricity cannot be stored. Therefore, it is highly practical in areas without electricity or areas with frequent power outages.
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Lithium battery charging and discharging curve analysis and application
Apr 23, 2024 Lithium battery charging and discharging curve analysis and application
Lithium battery charging and discharging curve analysis and application Original: Lithium Battery Technology Lithium Battery Technology Knowledge Platform Abstract: This article introduces in detail the analysis method of lithium battery charge and discharge curves, including charging efficiency, discharge characteristics, capacity evaluation, internal resistance evaluation and cycle life evaluation. By interpreting the charge and discharge curves, we can gain an in-depth understanding of the performance and characteristics of lithium batteries, providing an important basis for battery selection, use and optimization. 1. Introduction The performance of lithium batteries is crucial to the operation of various electronic devices and power tools. The charge and discharge curve is one of the important means to evaluate the performance of lithium batteries. It can intuitively reflect the voltage and current changes of the battery during the charging and discharging process. By analyzing the charge and discharge curves, information on key parameters such as battery capacity, internal resistance, and efficiency can be obtained, thereby providing guidance for optimizing battery design and improving battery performance. 2. Lithium battery charging curve analysis The charge and discharge curve of a lithium battery is the relationship between the voltage and the discharge capacity of the battery, and is also the curve of the remaining capacity SOC. During the charging process of the lithium battery, the voltage gradually increases and the current gradually decreases. The slope of the charging curve reflects the charging speed. The greater the slope, the faster the charging speed. At the same time, the plateau area of the charging curve indicates that the battery is fully charged, and the voltage tends to be stable at this time. (1). Charging efficiency analysis: Charging efficiency is an important indicator to measure battery charging performance. Higher charging efficiency means that the battery can more effectively convert the input electrical energy into chemical energy and store it. By comparing the actual charging capacity and the theoretical charging capacity of the charging curve, the charging efficiency can be evaluated. In addition, the energy loss during charging can also be observed to find ways to improve charging efficiency. (2). Charge end voltage: Charge end voltage refers to the voltage value when the battery is fully charged. Correctly setting the charge termination voltage can avoid overcharging and extend battery life. By analyzing the charging curve, the appropriate charging termination voltage is determined to ensure that the battery is charged within a safe range. 3. Lithium battery discharge curve analysis During the discharge process, the voltage gradually decreases and the current also decreases. The shape and slope of the discharge curve can also provide important information about battery performance. (1). Discharge characteristic...
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Photovoltaic industry terminology
Apr 18, 2024 Photovoltaic industry terminology
What are the relevant parameters of the inverter? Rated output voltage: The rated voltage value that the inverter should output when outputting rated current under specified input power conditions. (Usually the voltage fluctuation range is 220V±5% for single-phase; 380±5% for three-phase.)   Rated output current: The rated output current of the inverter within the specified negative power factor range. Some inverters give rated output capacity, expressed in VA or KVA. The rated capacity of the inverter is the product of the rated output voltage and the rated output current when the output power factor is 1 (pure resistive load).   Starting voltage: Conventional inverters are powered by DC. When the sun is shining, the string voltage will gradually increase. When the string voltage exceeds the starting voltage value, the inverter starts and starts working. (To prevent the inverter from starting repeatedly, the starting voltage is usually higher than the minimum operating voltage.) The lower the starting voltage, the earlier it starts and the longer it takes to generate electricity.   Maximum input voltage: refers to the upper limit of the input voltage that the inverter can withstand. In conjunction with the maximum open circuit voltage of the string, at the lowest temperature, the maximum open circuit voltage of the string does not exceed the maximum DC input voltage.   Maximum Power Point Tracking, abbreviated as MPPT (Maximum Power Point Tracking): The core function of the inverter can track the maximum power generation point of the component under the current situation. Simply put, it can track the voltage. In actual work, the output power can be maximized at the most appropriate voltage. MPPT working voltage range: That is, the range in which MPPT can effectively track the changing voltage of components. Only within this range, the inverter can work normally. The wider the voltage range, the greater the inverter's applicability.   Number of MPPTs: Each MPPT can perform maximum power tracking independently, and multiple string connections can exist under the same MPPT. A larger number of MPPTs is more beneficial to solving the mismatch problem; a smaller number of MPPTs is more advantageous in terms of stability and efficiency.   Nominal power: The rated power of the device, the maximum value allowed for the operation of the device.   Power factor: Generally, the inverter outputs pure active power by default. That is, the power factor is 1. It can be set and adjusted according to the actual situation, and the power factor is ~1 (0.8 lead...0.8 lag). What is an IP rating? Ingress Protection: In the IEC standard, it is for the external protection of the electrical equipment enclosure. The first number of IPXX indicates dustproof; the second number indicates waterproof. The higher the number, the higher the level of protection. (For example: IP65 6 means completely preventing dust from entering, 5 means low-pres...
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