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Batterie
Batterie au lithium/plomb-acide à longue durée de vie pleine capacité, cellules de batterie pour système solaire, système d'énergie éolienne, système de stockage d'énergie mobile, alimentation de secours, centrale électrique, etc. entretien gratuit
Système solaire
Standard/Personnalisé hybride, sur réseau, hors réseau kits de système solaire. Des solutions à guichet unique pour Projets commerciaux et résidentiels. Économisez du temps et de l'argent pour rassembler d'autres composants du système.
Batterie
Batterie
Batterie au lithium/plomb-acide à longue durée de vie pleine capacité, cellules de batterie pour système solaire, système d'énergie éolienne, système de stockage d'énergie mobile, alimentation de secours, centrale électrique, etc. entretien gratuit
Système solaire
Système solaire
Standard/Personnalisé hybride, sur réseau, hors réseau kits de système solaire. Des solutions à guichet unique pour Projets commerciaux et résidentiels. Économisez du temps et de l'argent pour rassembler d'autres composants du système.
À propos de nous
À propos de Sweet Power
Xiamen Sweet Power Tech Co., Ltd. est un fournisseur professionnel de solutions de systèmes solaires depuis plus de 10 ans. Nous offrons un service à guichet unique sur les kits de système d'énergie solaire, y compris sur le réseau, hors réseau, hybride, système de stockage d'énergie de batterie au plomb/lithum, etc. produit pour compléter les kits de système pv. De plus, nous avons notre propre équipe d'ingénierie et de R&D, personnalisée, OEM, ODM sont tous disponibles pour répondre aux différentes exigences de vos projets. C'est notre valeur que de soutenir nos clients avec des produits de haute qualité et des systèmes de longue durée de vie haute performance. Tous nos produits ont une garantie de plomb dans l'industrie avec toutes sortes de certificats. Nous sommes impatients de coopérer avec vous, ensemble pour rendre le monde vert.
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Xiamen Sweet Power Tech Co., Ltd. est un fabricant leader de produits d'énergie solaire et de solutions de service. Service principal, y compris les onduleurs solaires, les onduleurs solaires hybrides
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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
#outlook a { padding: 0; } .ReadMsgBody { width: 100%; } .ExternalClass { width: 100%; } .ExternalClass * { line-height:100%; } body { margin: 0; padding: 0; -webkit-text-size-adjust: 100%; -ms-text-size-adjust: 100%;} table, td { border-collapse:collapse; mso-table-lspace: 0pt; mso-table-rspace: 0pt; } img { border: 0; height: auto; line-height: 100%; outline: none; text-decoration: none; -ms-interpolation-mode: bicubic; } p { display: block; margin: 0; } .hide_on_mobile { display: none !important;} @media only screen and (min-width: 480px) { .hide_on_mobile { display: table-row !important;} } [owa] .mj-column-per-100 { width:100%!important; } [owa] .mj-column-per-60 { width:60%!important; } [owa] .mj-column-per-50 { width:50%!important; } [owa] .mj-column-per-40 { width:40%!important; } [owa] .mj-column-per-33 { width:33.333333%!important; } [owa] .mj-column-per-25 { width:25%!important; } .mj-column-per-100 { width:100%;} .mj-column-per-60 { width:60%; } .mj-column-per-50 { width:50%; } .mj-column-per-40 { width:40%; } .mj-column-per-33 { width:33.333333%; } .mj-column-per-25 { width:25%; } On January 17, 2024, we are honored to invite our Swedish customers to visit the company and factory. Booking This visit is divided into three parts: meeting-factory visit-battery cell factory visit First part-Meeting The meeting mainly communicated the details of the product, as well as the questions and different opinions of both parties on the progress of the project. There are further plans for future cooperation between the two parties, including the prospects for cooperation between the two parties in the next 3-5 years. Second part-Factory visit After the meeting, we invited the customer to visit our factory and demonstrate our production process and technology to the customer. Introduced some of our main products to customers. Demonstrates the entire process of the solar system. Visited the battery production line and solar panel production line. Third part-Battery cell factory visit On the second day of the customer's visit, we invited the customer to visit the source factory of the battery cell brand we cooperated with, introduced the long history of the brand, and introduced the complete battery production process to the customer, as well as various tests of the battery cells. Including high temperature testing and so on. During this visit, we also reached new cooperation with our customers. BOOK IT NOW!
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Is there radiation, pollution and noise in photovoltaic power generation?
Mar 01, 2024 Is there radiation, pollution and noise in photovoltaic power generation?
Photovoltaic power generation is to convert light energy directly into direct current energy through the characteristics of semiconductors, and then convert direct current into alternating current that can be used by us through the inverter. Photovoltaic system is composed of photovoltaic modules, supports, DC cables, inverters, AC cables, distribution cabinets, transformers, etc., of which, the support is not charged, naturally will not produce electromagnetic radiation. The photovoltaic module and DC cable inside is DC current, the direction does not change, can only produce electric field, can not produce magnetic field. (Radiation comparison of various household appliances and photovoltaic modules) The electromagnetic radiation of photovoltaic inverters compared with household appliances is about the same as that of laptop computers, lower than induction stoves, hair dryers, refrigerators. Therefore, the construction of photovoltaic power stations will not only not cause harm to human health, but also provide green and clean high-quality energy for the earth, which is the future direction of human energy development. 1. The manufacturing process is not "energy intensive" Photovoltaic manufacturing industry mainly includes crystal silicon purification, silicon ingot silicon wafers, photovoltaic cells and photovoltaic modules four links. Among them, crystal silicon purification needs to be completed under high temperature conditions, will consume a lot of electricity, accounting for about 56-72% of the total energy consumption, is the most important chemical production process in the industrial chain, and "high pollution" from the production of high-purity polysilicon byproducts. Crystal silicon purification is indeed a large-scale, high-energy industry. However, this does not mean that photovoltaic products are high energy consumption, we also need to convert the total energy consumed in the production of photovoltaic modules into power consumption, and compared with the lifetime of the module. The "photovoltaic manufacturing industry Specification Conditions" issued by the Ministry of Industry and Information Technology in 2015 stipulates that the power consumption of the polysilicon production process must be less than 120 KWH/kg, and the new construction and expansion projects must be less than 100 KWH/kg, which should be closer to the current world advanced level of energy consumption. This conversion, in line with the national regulations of photovoltaic power consumption, the production of a watt of photovoltaic modules need 0.6-1.2 degrees of electricity. According to the 25-year life of photovoltaic modules, photovoltaic power generation is far greater than production consumption. 2.No light pollution Light pollution is threatening people's health. In daily life, people's common light pollution is mostly caused by the vertigo of pedestrians and drivers caused by the reflection of mirror buildings, and the discomfort caused by unreasona...
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How to prevent photovoltaic roof from leaking?
Feb 29, 2024 How to prevent photovoltaic roof from leaking?
More and more users are installing photovoltaic power stations. When it comes to power stations/lithium batteries for solar panels, preventing water leakage is a top priority for factories. If the factory building is used as a photovoltaic power station, how should it be waterproofed? Or what should I do if the photovoltaic roof leaks? Causes of roof leakage Under normal circumstances, the initial investment in installing a photovoltaic power station is not small. If water leaks occur and the photovoltaic is dismantled and waterproofed again, the loss can be imagined. The main causes of roof leakage are as follows: 1. When installing photovoltaic brackets on concrete flat roofs or villa concrete slope roofs, use embedded bolts, expansion bolts or chemical anchor bolts to fix and install the photovoltaic brackets, which will destroy the original waterproof layer and cause rain leakage; 2. Because the roof color steel plates are exposed to the outside for a long time, they will rust, age, and leak. How to prevent when installing photovoltaic system(lithium batteries for solar panels)? When waterproofing the roof, we must adhere to the principle of "it should be directed rather than blocked" to ensure that the water can flow away smoothly when heavy rain accumulates, and the roof does not leak. During the installation process of photovoltaic brackets, make sure that the bracket base is not arranged perpendicular to the drainage direction and does not hinder the drainage of roof rainwater. When placing the bracket base directly on the existing roof during construction, ensure that the base is placed stably and neatly, and measures need to be taken to fix it to avoid overturning, slipping, etc., and to avoid conflicts between the base and the roof structure. The cascading relationship ensures the safety of the structure. In addition, try to avoid drilling holes in the roof. When drilling holes in the roof or the concrete slope roof of the villa, you must first determine the thickness of the perforated roof. In order to avoid damage to the roof by drilling, pouring is usually done on it. A certain thickness of concrete layer is used to fix the bracket using chemical anchor bolts after curing. In summary, waterproofing is the key to doing photovoltaics. Therefore, when installing photovoltaics, you must find a reliable and experienced installer. A reliable installer can control the waterproofing to have the same lifespan as the photovoltaic,so that the photovoltaic power station can play its full role. produce the greatest effect.
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 Is there radiation, pollution and noise in photovoltaic power generation? Here comes the scientific analysis!
Feb 28, 2024 Is there radiation, pollution and noise in photovoltaic power generation? Here comes the scientific analysis!
Photovoltaic power generation is the direct conversion of light energy into direct current energy through the characteristics of semiconductors, and then the direct current is converted into alternating current that can be used by us through the inverter. Photovoltaic system is composed of photovoltaic modules, supports, DC cables, inverters, AC cables, distribution cabinets, transformers, etc., of which the support is not charged, naturally will not produce electromagnetic radiation. Photovoltaic modules and DC cables, inside is DC current, the direction does not change, can only produce electric fields, can not produce magnetic fields. Although the output transformer is AC, the frequency is very low, only 50Hz, and the magnetic field generated is very low. Inverter is the direct current into alternating current equipment, which has a power electronic conversion, the frequency is generally 5-20KHz, so it will produce alternating electric field, so it will also produce electromagnetic radiation. The state has strict standards for the electromagnetic compatibility of photovoltaic inverters. The electromagnetic radiation of photovoltaic inverters, compared with household appliances, is about the same as that of laptops, lower than induction stoves, hair dryers, refrigerators. Therefore, the construction of photovoltaic power stations will not only not cause harm to human health, but also provide green and clean high-quality energy for the earth, which is the future direction of human energy development. Manufacturing processes are not "energy intensive" Do not know how many people slander that photovoltaic power generation is high pollution, high energy consumption in the manufacturing process, such rumors spread more than once. Photovoltaic manufacturing industry mainly includes crystal silicon purification, silicon ingot silicon wafers, photovoltaic cells and photovoltaic modules four links. Among them, crystal silicon purification needs to be completed under high temperature conditions, which needs to consume a lot of electric energy, accounting for about 56-72% of the total energy consumption, is the most important chemical production process in the industrial chain; The "high pollution" comes from by-products produced in the production of high-purity polysilicon. Crystal silicon purification is indeed a large-scale, high-energy industry. However, this does not mean that photovoltaic products are high energy consumption, and the total energy consumed in the production of photovoltaic modules needs to be converted into power consumption, and compared with the lifetime of the module. In 2015, the Ministry of Industry and Information Technology issued the "photovoltaic manufacturing industry standard Conditions", which stipulates that the power consumption of the polysilicon production process must be less than 120 KWH/kg; New construction and expansion projects must be less than 100 KWH/kg, which should be closer to the current world advanced lev...
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What's in the energy storage battery PACK?
Feb 27, 2024 What's in the energy storage battery PACK?
Content source: Energy storage box On the electrochemical energy storage track, lithium-ion energy storage is currently relatively mature in technology and has the fastest development momentum. Among them, lithium-ion battery battery PACK technology is an extremely important part. What exactly is a battery PACK? What does its complete production line look like? Let’s go to solidify these concepts! 01 What is a battery pack? Lithium-ion battery PACK, also known as battery module, is a lithium-ion battery manufacturing process that refers to connecting multiple lithium-ion single cell groups in parallel and series, taking into account the system mechanical strength, thermal management, and BMS. Matching issues. Its important technologies are reflected in the overall structural design, welding and processing process control, protection level, active thermal management system, etc. If two batteries are connected in series or parallel to form a specific shape according to customer requirements, it is called PACK. 02 The composition of the battery PACK The important components of the battery PACK include the five parts of the single battery module, electrical system, thermal management system, box, and BMS. ▷Battery module: If the battery PACK is compared to a human body, then the module is the "heart", responsible for the storage and release of electrical energy. ▷Electrical system: It is mainly composed of connecting copper strips, high-voltage wire harnesses, low-voltage wire harnesses, and electrical guarantee devices. The high-voltage wire harness can be regarded as the "artery blood vessel" of the battery PACK, which continuously delivers battery power to the end load. The low-voltage wire harness can be regarded as the "neural network" of the battery PACK, transmitting detection signals and control signals in real time. ▷Thermal management system: The thermal management system mainly has two methods: air cooling and liquid cooling, and liquid cooling can be divided into cold plate liquid cooling and immersion liquid cooling. The thermal management system is equivalent to installing an air conditioner on the battery PACK. The battery will generate heat in discharge mode. To ensure that the battery operates at a reasonable ambient temperature and improve the battery cycle life, the system temperature difference is generally required to be ≤5°C. ▷Box: Mainly composed of box, box cover, metal bracket, panel and fixing screws, it can be regarded as the "skeleton" of the battery PACK, playing the role of support, resistance to mechanical impact, mechanical vibration and environmental protection. ▷BMS: The abbreviation of "Battery management system", that is, the battery management system, can be likened to the "brain" of the battery. It is mainly responsible for measuring parameters such as voltage, current and temperature of the battery, as well as balancing and other functions. Data can be transferred to MES. 03 Features of Battery PACK ▷ PACK lithi...
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The Solar Show Africa 2024
Feb 26, 2024 The Solar Show Africa 2024
The Solar Show Africa 2024 Solar Africa takes place from 18 March to 20 April 2024 at the Sandton Convention Center in Johannesburg, showcasing South African and international company news in the solar, renewable energy sectors Frequently Asked Questions When is the African Solar Show held? Solar Energy Africa will be held from March 18 to April 20, 2024. Solar Africa is an annual trade show held in Johannesburg. Usually in March. Where is the African Solar Show held? Solar Africa takes place in Johannesburg, South Africa, at the Sandton Convention Center at 161 Maude Street in the city. Other renewable energy trade shows in Johannesburg What is on display at Solar Africa? Solar Energy, Renewable Energy and other trade shows in renewable energy by appointment with national and international exhibitors at Solar Africa
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The principle and advantage of photovoltaic power generation
Feb 23, 2024 The principle and advantage of photovoltaic power generation
The principle and advantage of photovoltaic power generation Solar photovoltaic power generation principle: Photovoltaic power generation is a technology that converts light energy directly into electrical energy by using the photovoltaic effect of semiconductor interface. The main core components of photovoltaic power generation are solar cells, and other components include batteries, controllers, and so on. Solar cells store sunlight, and then through a series of technical operations to convert its solar energy into electricity, the advantage of this technology is that as long as there is light, solar cells can collect and reserve sunlight. The process of converting solar energy into electricity mainly includes three steps: 1.After the solar cell absorbs a photon of a certain energy, an electron hole pair is generated in the semiconductor, which is called "photogenerated carrier", and the electrical polarity of the two is opposite, the electron is negatively charged, and the hole is positively charged. 2.Photogenerated carriers with opposite electrical polarity are separated by the electrostatic field generated by the semiconductor PN junction. 3.Grid connected pv system, that is, connected to the national grid. China's photovoltaic grid-connected power generation has been very mature, to encourage the conditions of regional industry and commerce and household, public buildings and other construction of photovoltaic power generation facilities, power generation for their own use at the same time can also enjoy the sale of electricity income. Solar photovoltaic power generation systems are mainly used in the following three major aspects: 1.To provide power for non-electric occasions, mainly for the majority of non-electric areas to provide electricity for the living production of residents, microwave relay stations and mobile phone base stations to provide power. 2.Solar daily electronic products, such as all kinds of solar chargers, solar street lights and solar lawn lights. 3.Grid-connected power generation, that is, connected to the national grid. China's photovoltaic grid-connected power generation has been very mature, to encourage the conditions of regional industry and commerce and household, public buildings and other construction of photovoltaic power generation facilities, power generation for their own use at the same time can also enjoy the sale of electricity income. Advantages of solar power: 1.Economic advantage: Solar energy is inexhaustible, and solar energy can generate electricity as long as there is light, which is very convenient; At the current level of technological development, the use of some solar energy has become economical. With the development of science and technology and the breakthrough of human development and utilization of solar energy technology, the economy of solar energy utilization will be more obvious. If the 20th century was the century of oil, then the 21st century is the century of renewable energy (...
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Can photovoltaic power stations still generate electricity normally on cloudy or rainy days?
Feb 22, 2024 Can photovoltaic power stations still generate electricity normally on cloudy or rainy days?
Many friends have heard of photovoltaic power generation And know that it relies on light to generate electricity Both environmentally friendly and energy-saving Therefore, the country strongly promotes photovoltaic power plants Since photovoltaic power stations rely on light to generate electricity Then there is no sun on cloudy and rainy days Will our photovoltaic power station stop working? The picture above is a simple power generation diagram of a photovoltaic power station. After reading the picture, many people will ask: Photovoltaic power generation = solar power generation? In fact, there is a difference between them: photovoltaic power generation is only one type of solar power generation, and solar power generation also includes photochemical power generation, light induction power generation and photobiological power generation. Some friends may also ask, will installing photovoltaic power generation produce radiation to the human body? The answer is not only no, photovoltaic power generation can also reflect ultraviolet rays from the sun that are harmful to the human body, so it is very safe and reliable. Can power be generated normally on cloudy or rainy days? First of all, photovoltaic power generation relies on sunlight, and weather changes are crucial to its power generation work. However, on cloudy and rainy days when there is no sun, the photovoltaic power station does not completely stop working. Weak light can also play a certain role in the components. However, in some special cases, the solar radiation is too low, and the operating voltage of the photovoltaic power generation system If the starting voltage of the inverter cannot be reached, the system will not work. Although the photovoltaic power station cannot work hard for us on rainy days, it will not damage the photovoltaic modules. On the contrary, the rain can help us clean the modules. When the sun comes out again, the photovoltaic power station will work even harder to create wealth for you!  
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Photovoltaic will be like the TV into every household
Feb 21, 2024 Photovoltaic will be like the TV into every household
Television was first invented by the British engineer John Logie Baird in 1925, from the 1980s, television into our families, remember when dozens of people crowded to watch a black and white TV, can not think that now TV is the standard in the family. With the TV on and the news on at 7 p.m., it's a family atmosphere. In recent years, the photovoltaic industry has developed rapidly, and the installation of photovoltaic has become a representative of fashion trends. If you installed photovoltaic on your roof a few years ago, and even local media came to interview, an interview became famous, and then everyone came to the home to see the photovoltaic roof built, quite the first village to buy a TV set, the whole village came to your home to watch TV feeling. So why say that photovoltaic in the future will become the standard of every household? This starts from the rapid development of photovoltaic power generation in the past two years, in recent years, the state has issued many policies to support the photovoltaic industry, carbon peak carbon neutral and double carbon targets have greatly promoted the development of the photovoltaic industry, at the same time the rapid development of our economy, China is facing more and more environmental pressure, and the construction of distributed photovoltaic is one of the most effective ways to reduce environmental pressure. Distributed photovoltaic construction on the industrial and commercial roofs or residential roofs, does not occupy additional resources, close to the power end, is one of the most important forms of power generation in the future, each household can produce electricity, into the grid, using "self-use surplus electricity online" or "full Internet" mode. It has not only made great contributions to the national green strategy, but also increased the income of individuals or enterprises, so that there is no harm in it, and it is inevitable that it will become the standard of every household in the future. Simple maintenance Many owners are wondering that as a photovoltaic roof as a power generation equipment, is it really noise-free, pollution-free and radiation-free? Photovoltaic power stations use solar energy for photoelectric conversion, and are very safe to install on the roof. And there is no loss in the power generation process, it can be used for 25 years, and the attenuation is less than 20% after 25 years. The radiation of photovoltaic compared with household appliances is about the same as that of laptop computers, lower than induction stoves, hair dryers, refrigerators. So there's no need to worry about it.
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New energy storage system products are launched installed and upgraded
Feb 20, 2024 New energy storage system products are launched installed and upgraded
3D-9KW-KS-Single Phase Energy Storage System Outdoor installation IP65 Inverter and battery integrated design Using the latest technology 178Ah battery cell Easy installation and upgrade Sizes can be customized according to the inverter OEM/ODM Model Phase 1-phase Input (PV) Max. Power(KW) 5400W+5400W Nominal DC Voltage/Maximum DC Voltage 360/500VDC Start-up Voltage / Initial Feeding Voltage 90VDC/120VDC MPPT voltage range(V) 90~450VDC Max. Input current of single MPPT(A) 18A MPPT Tracker/Strings 2/1 AC Output Rated output power(KVA) 10200W/10200VA Nominal Output Current 44.3A Output Voltage Range(V) 190~253VDC PF >0.99 TWO LOAD OUTPUT POWER Full Load 10200W Maxium Main Load 10200W Maxium Second Load(battery mode) 3400W Maxium Load Cut Off Voltage 52VDC Maxium Load Return Voltage 54VDC OFF-GRID OPERATION AC INPUT AC Start-up Voltage / Auto Restart Voltage (KVA) 120-140VAC/180VAC Acceptable Input Voltage Range 90-280VACor170-280VAC Frequency Range 49~51 1HZ Maximum AC Input Current 50A PV INPUT (DC) Nominal DC Voltage/Maximum DC Voltage 360/500VDC MPPT Voltage Range 90~450VDC Maximum Input Current 2/18A BATTERY MODE OUTPUT (AC) Nominal Output Voltage 220/230/240VAC Output Waveform Pure sine wave Efficiency (DC to AC) 94% BATTERY & CHARGER Nominal DC Voltage 48VDC Maximum Solar Charging Current 160A Maximum AC Charging Current 140A Maximum Solar+AC Charging Current 160A HYBRID OPERATION PV INPUT (DC) Nominal DC Voltage/Maximum DC Voltage 360/500VDC Start-up Voltage / Initial Feeding Voltage 90VDC/120VDC MPPT Voltage Range 90~450VDC Maximum Input Current 2/18A GRID OUTPUT (AC) Nominal Output Voltage 220/230/240VAC Output Voltage Range 190~253VDC Nominal Output Current 44.3A Maximum Input Current 2/18A AC INPUT AC Start-up Voltage / Auto Restart Voltage 120-140VAC/180VAC Acceptable Input Voltage Range 90-280VACor170-180VAC Maximum AC Input Current 50A Maximum AC Charging Current 140A BATTERY Battery Module 9.11Kwh Rated Voltage 51.2V Operating Voltage 47.2 - 56.8V Rated Charging/discharging current 178A Max Charging/discharging current 178A Over current protection 220A Battery Type Lithium Iron Phosphate (LFP) Operative temperature range -10~50℃ Recommended operating temperature 15℃~30℃ Storage conditions - 20°C ~45°C Humidity:5%~95%RH Cooling Natural cooling service life 3000 次,80%DOD /25℃/0.5C,60%EOL GENERAL Dimensions (WDH) MM 580/350/1800MM Weight(KG) 92KG Safety standard CE EMC CE
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