shenzhen youess

solar inverter and lithium battery

[youess]

What functions does a solar inverter serve?

In the realm of PV systems, inverters stand out as the primary orchestrators of operational functionalities, surpassing other components in their pivotal role. Their responsibilities have expanded significantly, especially with the evolution of smarter systems that boast heightened interactions with the utility grid. As solar technologies advance, inverters take on an increasingly multifaceted role, overseeing a spectrum of tasks critical to the seamless integration and performance optimization of photovoltaic installations.

Transformation from DC to AC Power 

At its core, the primary role of an inverter lies in the transformation of the electrical output from solar panels, converting direct current (DC) power into the more widely applicable alternating current (AC) power. This pivotal conversion ensures that the energy harnessed from the sun, in its original form, is seamlessly adapted for use in households, commercial establishments, or seamlessly integrated into large-scale grid projects, such as expansive utility-scale solar arrays. This fundamental function highlights the inverter's crucial role in bridging the gap between solar energy generation and diverse electricity consumption needs.

Optimizing Power Generation 

Inverters play a crucial role in the continuous monitoring and optimization of power output from solar arrays. Their responsibility extends to tracking the voltage levels of the solar modules, identifying the optimal power level at which these modules can efficiently operate. As outlined by PVEL, environmental factors like shading or potential module degradation can pose challenges. In such scenarios, the inverter's role becomes pivotal as it ensures accurate identification of the peak power within the string, safeguarding against potential inefficiencies that might otherwise diminish the overall energy production of the solar system. This dynamic function underscores the inverter's contribution to maximizing the efficiency and performance of solar arrays under varying conditions.

Grid Integration and Communication 

The evolution of solar inverters, particularly with the advent of smart inverters, signifies a transition from traditional one-way communication to a more sophisticated two-way interaction with the grid. The latest generation of inverters, equipped with advanced software capabilities, goes beyond the conventional role. These smart inverters facilitate seamless communication and interaction with the grid, offering multifaceted grid-support functions. Their capabilities extend to managing aspects such as voltage, frequency, and intricate communications and controls. This enhanced interface empowers the solar system to actively contribute to grid stability and reliability, marking a significant advancement in the capabilities of modern inverters.

Enhancing Grid Stability

Monitoring and Reporting Power Generation 

In addition to their pivotal role in the energy conversion process, inverters play a crucial role in enabling solar system owners to monitor and assess the power production of their solar installations. The majority of inverters are equipped with communication features, utilizing hardwired ethernet, Bluetooth, or Wi-Fi connectivity, as noted by PVEL. While this connectivity enhances accessibility for users, it also introduces potential cybersecurity risks, prompting ongoing efforts from scientists to develop robust solutions for mitigating these vulnerabilities. Exploring more on the subject of inverter cybersecurity provides valuable insights into the evolving landscape of solar technology.

Solar system proprietors have the convenience of accessing a wealth of information through inverters, ranging from error codes and diagnostics to comprehensive power production data. This valuable data is easily accessible, not only through personal computers but also via dedicated smartphone applications, such as the one provided by SolarEdge. For those overseeing expansive solar arrays, particularly in commercial or utility-scale settings, there's the option to enhance monitoring capabilities further. Engaging third-party vendors like Solar-Log offers advanced monitoring services, empowering solar owners to diagnose and address issues efficiently, ensuring optimal performance and reliability across multi-inverter arrays. This additional layer of support contributes to the overall efficiency and longevity of solar installations.

Uphold System Safety Measures Inverters play a pivotal role in maintaining the safety protocols of a solar system. They are designed to deactivate swiftly in scenarios where electrical arcs occur, a phenomenon often attributed to the natural wear and tear of system components or the degradation of materials. While these inverters are programmed to detect such arcs, a comprehensive evaluation by PVEL revealed disparities in their efficacy across various models. Notably, the Delta and Fronius inverters emerged as the frontrunners in PVEL's rigorous ground and arc fault assessments, underscoring their superior safety features and reliability in real-world applications.

Due to the intricate composition of numerous electronic components and the multitude of tasks they perform, inverters stand out as more susceptible to failure compared to other components within a PV system, as highlighted by PVEL. Both string and central inverters present distinct advantages and disadvantages, but in the inevitable event of a failure, string inverters offer a more straightforward and manageable servicing process. For a comprehensive guide on how installers can effectively prepare for potential inverter failures, delve into further details here.

[youess]

What you should be aware of before buy solar power

The prospects for home solar photovoltaic are full of hope, as this technology has rapidly developed globally and will continue to grow in the coming decades. But before purchasing solar photovoltaic, you may need to know some things first.

Firstly, it is necessary to understand whether your house is suitable for installing solar panels, as generally speaking, solar photovoltaic systems are installed on the roof. If you have a large roof without obstacles, you can place a beautiful large array. The orientation of the house is also an issue that you need to consider, because if you have a beautiful large opening roof, but it is facing north, such as in the UK where the roof faces north, it is not the ideal location for placing panels because sunlight does not stay on the roof for a long time during the day. If your house faces south, you can get the most sunlight throughout the day, but there are other settings that are also suitable, such as an east-west roof, where the sunrise is in the east and the sunset is in the west, so you can see the morning sunshine in the east and the afternoon sunshine in the west. The sun rises from that side and sets on the other side, so there is plenty of sunlight throughout the day. You can use Google Maps to check the size and layout of your roof and see if there is enough space to install the panels.

If your roof is covered with ordinary tiles, it is easy to install solar energy, but some roofs are much more complex. For example, if you have slate roofs, installation will take more time because the use of slate roofs is more complex. Roofs are usually carefully designed to support a considerable amount of weight, but if you have a flat roof, it is not. If you want to place panels on a flat roof, You need the advice of a structural engineer, and it is best to inform the installation personnel. You need to provide a photo explaining what type of tiles they are to help the installer determine the quotation.

Another thing you need to consider is whether your roof needs to be repaired. If your roof is relatively old, the tiles are damaged, etc., and you plan to install solar energy to take a look, this will be a good time. The roof system actually recesses into the roof, so basically you can remove most of the tiles from the roof and install panels, and then place tiles on the edges. If you want to re roof, this can actually save a lot of money because you don't need to install new tiles and then place the panels on top, it looks better, so if you want a rich system.

How much weight can our roof bear? When installing solar panels on the roof, structural engineering calculations are important, requiring installation personnel to conduct on-site investigations, roof trusses, truss spacing, roof layout, measure all weights, etc. They will send these data to the structural engineer for calculation and send a document explaining whether to approve the placement of heavy solar panels on the roof.Each panel you add to the roof may weigh up to 30 kilograms, so if you have such a roof, you may need 25 panels, which means that perhaps 800 kilograms have been added to the roof. If you don't check with the structural engineer first to ensure that the roof can withstand the additional weight, you don't want to do so. Therefore, please ensure that you have received a quotation or that the person installing the quotation first checks with the structural engineer, Because you don't want your roof to collapse in a few years, it will be a disaster.

Flat Roof

How much weight can our roof bear? When installing solar panels on the roof, structural engineering calculations are important, requiring installation personnel to conduct on-site investigations, roof trusses, truss spacing, roof layout, measure all weights, etc. They will send these data to the structural engineer for calculation and send a document explaining whether to approve the placement of heavy solar panels on the roof. Each panel you add to the roof may weigh up to 30 kilograms, so if you have such a roof, you may need 25 panels, which means that perhaps 800 kilograms have been added to the roof. If you don't check with the structural engineer first to ensure that the roof can withstand the additional weight, you don't want to do so. Therefore, please ensure that you have received a quotation or that the person installing the quotation first checks with the structural engineer, Because you don't want your roof to collapse in a few years, it will be a disaster.

Solar energy is an important supplement to the power system, and you need to know if your system can cope with the challenge of adding solar energy. One thing you need to know is what the size of your main fuse is, because many people don't even know how much power they have. The gray box, sometimes black, has a label on it that says 100amp, which is the rated value of the main fuse. The essential upper limit is the amount of electricity your house can withstand, so it can input and output. In most cases, it is hoped that it is 100amp, But some houses are 60amp or 80amp, and if you use a so-called ring power supply, it may be limited by the size of the power cord entering your house. If your power supply has a cable that enters from the bottom and then reconnects to a neighbor's house, you may only be able to use a 60 or 80 amp power supply. Therefore, please send photos of the meter box taken with fuses and meters to your installation personnel.

Suness Lithium Battery Storage Case

The size of the solar photovoltaic array you want actually depends on many factors. The first factor is how many panels you can install, but ultimately more panels may be installed than you need. Therefore, you need to consider how much energy your house actually uses, and then you can adjust the size of the solar photovoltaic system to generate enough energy to meet your house's needs, perhaps even more, In order to provide you with some room for maneuver, you should obtain data from your smart meter. You can ask your energy supplier for half an hour of usage data, which is crucial for the installation personnel to determine the correct system size. If you can provide information on how much energy is used every day and at different times of the year, this data will be very useful.

Do you need battery storage? For most people, battery storage has taken solar energy to a new level because it only emits light during the day, which may sound obvious, but most of us usually need a lot of electricity at night: bathing, washing dishes, and boiling water. If you want your solar energy to run well at night, you must use batteries to store energy because it can generate more solar energy than you actually need during the day, rather than inputting it into the grid and approaching it, without storing it in batteries, and can be used at night. Therefore, when we obtain your data, we will check your nighttime usage, from sunset to sunrise in the morning, how much energy you use, Based on this quantity, we will determine the size of a battery system that should be able to meet the majority of nighttime use in most households, with an energy range of 10-20 kWh. However, your specific usage situation may vary, so obtaining data is indeed crucial to determine the system size that suits you, not too large or too small, in order to obtain a customized system that suits you.

Suness Lithium Battery Storage Case

Can inverters and battery storage systems be installed? Solar inverters are a fairly large device with even larger battery storage, so you need enough space to accommodate them.Most people don't want them to be placed in their living room, so do you have a suitable location to install them indoors? Garages are usually perfect locations that can be neatly arranged and easy to repair and maintain, so having enough space is an important consideration. Now you may want to know that I don't have any extra space indoors. Can I keep it outside? All of these products are IP rated, but if placed outside, they will suffer a considerable blow, so it would be better if they could be placed inside. If you have no other choice, you can install them outside with some modifications.

Purchasing solar systems is an important decision that can reduce energy costs, reduce dependence on traditional electricity, and contribute to the environment. Ensure that all relevant information is fully understood before making a purchase and consult with professionals to obtain the best advice. If you need any help, you can contact us.

More information for: www.suness.com

[youess]

why should you need buy a household battery?

Batteries are a direct supplement to solar systems and bring significant benefits. Nowadays, many people install solar energy, but may not have batteries. If you already have batteries, you can use this article to see some unexpected benefits that expanding the capacity of household batteries may bring to you.

1) Using solar energy after sunset: Home energy storage systems store excess solar energy for nighttime use; This means that you can use the "free" solar energy generated during the day to charge the battery. At night, you don't get it from the power grid, but use the energy stored in the battery.The biggest challenge facing Australia in achieving a fully renewable power grid is to overcome the peak demand in the evening, as the sun sets and everyone  returns home and turns everything on. Batteries consume some of your daytime solar power and use it to reduce this peak demand, helping us achieve 100% renewable energy on the grid. Therefore, we need to add or increase more solar energy capacity to help us weather through winter and bad weather, and pairing it with batteries will bring maximum environmental benefits to it.

2) Benefiting from time of use tariffs: Time of use (ToU) tariffs are becoming increasingly popular (and may even become mandatory).These tariffs charge high fees per kilowatt hour when grid demand reaches its peak in the late afternoon and evening (such as 4pm to 9pm). By using household batteries, you will import less energy from the grid and pay less electricity bills to power retailers every quarter.If you don't have batteries, the time sharing tariff may greatly increase your bill. However, appropriately sized batteries with sufficient solar panels can provide you with electricity during these peak periods, so you can avoid most or all of the peak prices.  Then, if you have to extract from the grid, you can enjoy off peak pricing later in the evening. Some battery systems are intelligent enough to supplement off peak grid power in meaningful places. For example, if it appears that there is not enough sunlight to charge the next day.

3) Backup: Some (but not all) batteries will also backup important circuits in your home. Wild weather is becoming increasingly common, and 'once in a century events' seem to occur every year, with Australians losing power more frequently. People living in areas prone to power outages value backup batteries. Properly designed and installed solar energy and batteries are a great way to protect your family from power outages. Also, when you are the only house on the street with lights on and beer cold, it feels great.

4) Join a virtual power plant: Having batteries allows you to join the virtual network of other battery owners. When the power grid needs support, you can use your combined capacity to support the power grid through charging and discharging. This will help integrate more renewable energy into Australia's power grid, and you can also earn rewards through continuous assistance.If you are using a time-of-use electricity plan, you can completely avoid the usually very expensive late peak tariff period. If your tariffs have an expensive early peak, they can also avoid this situation - sometimes wisely charging cheap energy after around 1am.With a sufficiently large solar and battery system, you may no longer be paying for electricity bills, as grid imports and solar exports only require payment for your daily service fees.If you are part of a virtual power plant (VPP), your battery also supports the grid and earns points for this (which can be considered an additional grid price).

But what's the problem with all of this?

Virtual Power Plant

Most states also have virtual power plant solutions. If you have registered for VPP, you have handed over control of energy storage to the VPP operator. Two advantages of VPP: 1. You can obtain a pre discount on the battery system by agreeing to join VPP at the time of purchase. When the power grid requires support, you can receive a bonus for charging or discharging batteries. For certain VPPs, this may greatly improve battery economy. Two drawbacks of adding VPP: 1. The more household batteries are used, the shorter their lifespan. Tesla has recognized this and if you join a specific Tesla VPP, its warranty period will be extended by 5 years. 2 The stored energy is usually most valuable during late peak hours. VPP operators may force your battery to charge from the grid in the afternoon and discharge into the grid shortly after sunset, leaving you with little or no energy storage to spend the night.

Adequate solar cell storage costs fully cover your electricity bill, which is very high. The larger your bill, the larger the energy storage system you need.The amount of storage you need to purchase (in kilowatt hours) depends on your nighttime energy usage. A typical Australian household uses 20-24 kilowatt hours within 16 hours. For families who work from 9 to 5, 9%+of their electricity consumption is between sunset and sunrise.Therefore, to run your house through a battery system, I suggest a minimum size of 10 kWh. You also need at least 8 kW of solar panels to charge reliably throughout the year. In the best case, 10 kWh of storage will save you approximately $700 per year.

Some homeowners mistakenly believe that solar cell installation is a "one size fits all" situation, which is far from the truth - like solar energy, the cost of installing batteries may vary greatly due to several factors, such as:The distance between the battery and the distribution board (longer distance=more wiring=more expensive installation). How many backup circuits do you want? If you want to backup the circuits, are they all in the main distribution panel or on the daughter board at home? Do you need a new circuit breaker? If so, how many? Do you need bollards or fire-resistant backing to ensure compliant installation? Is your family single-phase or three-phase? Phase 3 installation quickly becomes complex, resulting in higher costs.The high price of solar cells makes people wonder if there is a suitable way to pay less for solar cells without affecting their quality. So don't miss the Sunness Super September promotion, solar energy is no longer a luxury! Seize the opportunity and participate in our promotion. In addition, there are several ways to obtain discounts on home battery systems.

Suness customer feedback

What type of backup do you want?

If you want to purchase a solar cell system, you should make full use of it. Ensure that it is installed and configured to back up some or all of your home content. However, be careful when requesting backups, as you may not be able to achieve the expected results. I have compiled a description of the "level" of household backup batteries to help you understand what to ask: requesting backups, as you may not be able to achieve the expected results. I have compiled a description of the "level" of household backup batteries to help you understand what to ask:Level 2- Provide fully functional backup during power outages. However, when the power grid is turned off, your battery cannot be charged from the solar system. If there is a power outage during the day when there is insufficient energy storage, it can be very annoying!Level 3- 'Apocalypse proof' backup. Complete battery function, you can charge the battery from the solar panel when the power grid is turned off.In my opinion, if you purchase an energy storage system, you would like it to provide a level 3 "Apocalypse proof" backup. Say to your installer, 'I hope my battery will be charged from my solar panel when the power grid is turned off.'. If your installation is difficult, in rare cases it may not be possible to perform a Level 3 backup.

Due to space limitations，if you have any questions about home energy storage, please consult www.suness.com,and we will provide you with detailed answers and assistance.

[youess]

Is solar energy really environmentally friendly?

Solar energy is quite amazing, its power generation is emission free and very cheap. But if something is incredibly good，there’s go to be a catch right。

You need to manufacture solar panels with a Carbon footprint, but solar panels will constitute more than twice the Carbon footprint of today's global tonnage of plastic waste. It seems that solar energy is not as green as many of us imagine. This is indeed true, let's take a look at the criticism faced by solar energy.

Emissions

Let's first take a look at the impact of solar energy on the climate. Solar panels generate electricity without generating emissions, which sounds great, but the entire process of producing them, especially the use of a large amount of energy and raw materials, must be mined, transported, processed, and then assembled. Moreover, as our economy still relies mainly on fossil fuels, all of which means greenhouse gas emissions, But the problem is the amount of emissions and how they compare to other energy sources. There is a kind of thing called Life-cycle assessment - greenhouse gas emissions from generating kilowatt hours. The result is that the average solar energy emits about 40g of carbon dioxide equivalent per kilowatt hour, which is indeed very low compared to fossil fuels such as 500g of natural gas or 1000g of coal. Renewable energy has provided significant benefits in replacing traditional energy sources, and more importantly, solar energy has become increasingly efficient, which can further reduce future lifecycle emissions and may even lead to the emergence of new solar technologies, such as perovskite modules, which are expected to use less energy in production and convert more sunlight into electricity, leading to a snowball effect, The more solar energy is deployed, the cleaner it is and the more it is produced. Yes, strictly speaking, solar energy is not completely zero emission, but it is already one of the most climate friendly energy sources we have.

toxic chemicals

Next, let's take a look at what is actually produced, all of these panels.

To produce solar cells, you need quite a lot of chemicals. The main raw material of solar cells is silicon. For example, Silicon tetrachloride is produced in the process of refining silicon, which will affect people's health and the environment. But it can be recycled and reused, and manufacturers need to follow relevant safety operating procedures and environmental protection measures.

Finally, let's take a look at the death sites of all these battery panels

Waste

The lifespan of solar panels is about 30 years or even longer, but at some point they have reached their lifespan. So far, the waist pile of discarded batteries is still relatively low, at around 250000 tons. However, by 2050, it is expected to grow to 78 million tons, equivalent to the old solar panels of over 200 Empire State buildings. In the next 10 or 15 years, this will be a major crisis. The old battery panels will be piled up into a mountain of Electronic waste. We are already working hard to deal with it. The good news is that solar panels can be recycled, and they are already doing so. Mainly in the EU, governments of various countries force manufacturers to ensure that their waste panels are recycled.

The relevant facilities have already recycled a large amount of materials, but there are also some bad news, such as the low purity of recycled silicon, which means we cannot truly use it to manufacture new solar panels, but instead use it for other things such as shoe soles. Then there is another issue, the recycling cost is relatively high, at least in part because there are not yet so many modules to recycle.

The good news is that solar panels can be recycled, while the bad news is that many solar panels cannot be recycled yet, so this means that solar panels are not entirely green. However, this definitely does not mean that we should abandon them, as their benefits are too great. On the contrary, we should openly solve their problems and find out how to solve them.

More information for：www.suness.com/www.youess.com

[youess]

Misunderstanding of solar energy

The benefits of solar energy are unquestionable. As a renewable energy source, once solar power generation facilities are installed, it can save energy expenditures for individuals, businesses, and society, mitigate climate change, and protect the ecological environment. Although solar energy is a very beneficial renewable energy source, there are also some misunderstandings in the process of popularization and use.

Many people believe that solar energy is only suitable for specific regions, which can generate electricity in areas with high temperatures or high illuminance. However, solar panels do not require high temperatures or high illuminance to generate electricity.Although direct sunlight produces the greatest amount of energy, even on cloudy and rainy days, solar panels can still extract energy from scattered sunlight and generate a certain amount of electricity.The efficiency of solar panels continues to improve, coupled with the coordination of energy storage lithium batteries. Although the intensity and availability of solar energy resources vary in different regions, as a global energy resource, through reasonable planning and technological choices, solar energy is a feasible energy choice in most regions, playing a role in different climate conditions around the world.

Some people believe that solar panels are not economical enough. Although the initial investment in solar panels is relatively high, with the progress of technology and the increase of economies of scale, the cost of solar panels gradually decreases. And once installed, the operating cost is very low, and the investment can be recovered within decades.

I think one of the biggest flaws in logic a lot of people have is acting like only one kind of green energy (usually specifically renewables) is best for both cost and the environment. Studies have shown that the best way to get the most green energy for the lowest cost and environmental impact is to have a combination of solar, wind, nuclear, hydro, and battery storage. We could get so much farther if we stopped treating it like a competition between energy sources and used them together.

For example, the cooperation between wind and solar energy significantly increases energy production to meet the needs of high energy consumption periods. And it can generate electricity day and night, reducing energy fluctuations and reducing the instability of the energy system. If combined with an energy storage system, it will be able to stably provide clean energy.

Kela plant in Sichuan is part of a huge renewable production base planned by the Chinese government.This technology solves the safe connection of solar power with the grid and prevents wastage, addressing solar power’s inherent dependence on the weatherThe plant is part of a huge renewable production base planned by the Chinese government to eventually generate clean energy for 100 million households – almost equal to the US population – for the length of the 1,500km-long river.

Many people believe that there are many ways to reduce carbon emissions, and it is not important to replace traditional energy with new energy sources. It would be helpful to compare solar cells with respect to conventional energy for other variables than CO2 emission. There are about 10 million death yearly from air pollution, mainly from burning coal. The amount of toxic waste that coal burning produces is staggering. Over 400 million tons of fly ash is produced yearly, of which only one third is reused. The rest is dumped in land fills or ash ponds. Fly ash contains a lot of toxic heavy metals. Fly ash can even contain as much nuclear waste per kWh produced as the nuclear waste produced by a nuclear power plant. The radioactive waste from coal is dumped, while that of nuclear power plants is contained and stored. Than we have the enormous amount of mining, the oil spills,  the gas flaring en methane leakages, the water polution by fracking, the domestic polution of burning fossil fuel for cooking, etc... We have to consider all these things when comparing to renewables.  Not only the CO2 emissions.It's more about the environment and ourselvesThe benefits of solar energy are unquestionable.

Overall, understanding and correcting these misconceptions about solar energy can help promote and apply solar technology better, and promote the development of sustainable energy.

More information for：www.suness.com/www.youess.com

[youess]

why solar energy so cheap aren't we using more?

It’s astonishing that solar energy has become the most cost-effective way to generate electricity, even cheaper than coal. Despite this, solar energy only accounts for about three percent of the world's electricity generation. The question arises: Why haven't we embraced solar energy more widely, considering its cost-effectiveness? To understand this, let's explore the factors that contributed to the affordability of solar energy.

First, the price of solar panels has drastically fallen over the years. Initially, a watt of solar panel capacity used to cost about 4 dollars, but today it costs only about 20 cents. This remarkable price drop is attributed to the progress in solar technology and advancements in manufacturing processes.

Second, the development of the solar energy market was significantly influenced by Germany, which passed a law in 2000 to promote renewable energy. The law guaranteed a fixed price for energy generated from sources like wind and solar, providing a stable incentive for people and companies to invest in solar panel installations.

Third, China played a crucial role in making solar energy more affordable. After the German law came into effect, China became a major player in producing solar cells on a large scale. The country rapidly expanded its solar panel manufacturing industry, surpassing the efforts of Western nations. Today, China leads the world in solar panel production, accounting for approximately 70 percent of global output.

In summary, the affordability of solar energy can be attributed to a series of interconnected events. The United States pioneered the solar technology, Germany created a market for renewable energy, and China drove down the costs through massive production. This combination of factors has led to clean energy from solar becoming both economically viable and environmentally beneficial.It’s astonishing

But if solar is so great,why don’t we rely on it much,much more and just switch off all these dirty power plants?

In simpler terms, the main reason we haven't relied on solar energy more extensively is that it has a significant limitation—it can only produce electricity when the sun is shining. During cloudy or dark periods, solar cells are not very effective, which is unfortunate because those are the times when energy is needed the most.

When we examine energy usage throughout the day, a pattern known as the "duck curve" emerges. In areas with little solar power, energy demand rises in the morning, remains relatively steady during the day, and then increases again in the evening. However, in places with abundant solar energy, the curve changes. Mornings are similar, but once the sun rises, solar power contributes, reducing the need for non-renewable energy until sunset. After the sun sets, there is a sudden surge in demand for conventional power.

This sudden increase in demand poses two problems. First, traditional power plants cannot respond quickly enough to meet the surge, so they need to operate at a constant output throughout the day, even when solar energy is available in abundance. This sometimes results in an excess of energy produced during mid-day, leading to waste. Second, there are limitations on how much energy the grid can handle, so excessive solar power could overwhelm it.

However, there is a solution to this issue: lithium-ion batteries. We’re just taking the same construction,stringing together many,many of those that we can use for cars.And then we can also scale that up to use for stationary power to go next to wind parks or solar farms.What’s been quite good over the last few years is that batteries have got a lot cheaper as well.And we’re now seeing solar projects built with a couple of hours of storage in the battery so that they could shift some generation from the middle of the day to the evening—where there’s often a peak in electricity demand.

Lithium-ion batteries have become a lot better and a lot cheaper than expected in the last few years.They’re now a viable option for storing and shifting at least a few hours’ worth of solar energy as needed.So,the storage problem that solar always had is actually not that much of a problem anymore.For example.In the US,the state of Ohio just decided to shut down a coal plant—and instead build new solar farms that store large amounts of the energy they produce in batteries.

With the problem of energy storage largely addressed, solar energy is becoming an increasingly attractive option. In fact, it is projected that solar could supply around 30 percent of global electricity by 2050. Solar power has come a long way and is now poised to play a much bigger role in our energy landscape.

More information for：www.suness.com/www.youess.com

[youess]

Photovoltaic Energy Storage Grid System

Photovoltaic systems, as a clean and renewable energy technology, are of great significance for achieving sustainable development, addressing climate change, protecting the environment, and improving energy supply. However, it is affected by weather conditions and has intermittent characteristics. Therefore, photovoltaic systems are generally integrated with other forms of energy. The photovoltaic energy storage grid system is an energy system that comprehensively uses photovoltaic energy, Energy storage and grid interconnection. It connects solar photovoltaic power generation systems with energy storage equipment and the power grid, achieving the collection, storage, and effective utilization of solar energy.

The system has a wide range of applications. It can be applied to various scenarios such as home, industry, business, and public sectors. In the home and business sectors, systems can provide renewable energy for buildings and backup electricity when needed. In the industrial field, this system can balance energy demand, reduce peak load, and reduce energy costs. In the field of agriculture, it is possible to irrigate farmland and maintain temperature and humidity. In addition, the system provides reliable energy supply channels for remote areas and developing countries, promoting sustainable development and energy popularization.

Combined with energy storage systems, photovoltaic power generation systems convert solar energy into direct current energy through photovoltaic panels. This direct current energy is first transported to the energy storage device, such as in a battery system for storage. Energy storage devices can release stored electrical energy during periods when solar energy is unavailable or during peak energy demand to meet actual needs. The advantage lies in its ability to solve the intermittent and uncontrollable problems of solar power generation. Through energy storage devices, the system can store solar energy for use during periods such as nighttime or cloudy days when sufficient solar energy cannot be generated. In addition, the system can also achieve bidirectional energy exchange with the power grid through interconnection, improving energy flexibility and reliability.

At the same time, the system is also connected to the power grid. When solar energy resources are insufficient or energy demand exceeds energy storage capacity, the system can supplement energy through the power grid. When the electricity generated by the photovoltaic power generation system exceeds the demand or the energy storage equipment is fully charged, the excess electricity can be fed back through the grid, achieving the transmission of excess electricity to the grid and achieving localized power supply. By constructing photovoltaic power generation and energy storage facilities near users, transmission losses are reduced, more reliable power supply is provided, and dependence on remote power grids is reduced.

In a word, photovoltaic energy storage grid system is an energy system integrating photovoltaic energy, Energy storage technology and grid interconnection, which can improve the reliability, flexibility and sustainability of solar power generation system, promote the use of renewable energy and energy transformation, and has obvious advantages in the use of renewable energy, reducing grid load, energy storage and dispatching, and localized power supply. However, it still faces challenges such as high costs, weather dependence, environmental impacts, and technological limitations. Its construction and operation require the use of limited resources and materials, such as rare metals, lithium, etc. With the continuous progress of technology and the decline of cost, Energy storage still has some technical limitations in energy density, life, safety, etc., which needs further research and development and improvement. This system is expected to play a more important role in the future, promoting the widespread application of clean energy and achieving energy transformation.

More information for:www.suness.com

[youess]

Proper use of photovoltaic power generation

Currently, the continuous strengthening of environmental protection awareness and the increasing reduction of natural resources have led to a gradual shift in electric power generation towards new energy forms. Green and low-carbon development has become a global consensus and trend. In new energy generation, there are various forms such as wind energy, photovoltaic, and hydropower. As an emerging form of power conversion, photovoltaic is currently rapidly developing. Accelerating the application of photovoltaic grid connected power generation has very important practical significance for the power industry, natural resources, and environment.

The power generation provided by photovoltaic power generation largely depends on its power generation efficiency, which will affect the stability and security of the power system.How to use photovoltaic power generation correctly and improve efficiency is a comprehensive engineering problem, in addition to conducting research and innovation in material science,For example, improving the structure and materials of batteries, reducing internal resistance,.Maintain and clean externally,Keeping photovoltaic panels clean can reduce the reflection and absorption loss of light energy, which is also very important to improve power generation efficiency.Develop new power generation models that Photoagriculture complementarity, fishing and solar complementary, and other comprehensive power generation land.

Photoagriculture complementarity

PV power plant modules can cool and humidify the ground, help to reduce water evaporation, and help to plant crops under the board. At the same time, crops can prevent land Desertification, reduce the impact of wind and sand on the PV power plant. This power generation mode has the functions of conserving water and soil loss, controlling environmental temperature, and preventing natural disasters, so that the ecosystem enters a virtuous cycle, and the use of limited land resources is more reasonable, Simultaneously achieving economic and social benefits.

fishing and solar complementary

This mode can reduce the impact of light on fisheries, and the blocking of some sunlight by photovoltaic power plants can prevent large-scale outbreaks of algae in fishing grounds, providing a better incubation environment for freshwater organisms; In hot summer, photovoltaic power plants can lower water temperature and reduce large evaporation losses on the water surface by appropriately blocking sunlight towards the water surface. This can effectively prevent the outbreak of aquaculture diseases and help regulate the metabolic capacity of fish. New models such as agricultural solar complementation and fishing solar complementation can partially control the influencing factors (such as ambient temperature and air humidity) of photovoltaic power generation efficiency, and can improve efficiency and maintain efficiency.

Factors affecting photovoltaic power generation:

Occlusion loss: Centralized photovoltaic power plants are generally located in suburban areas, where trees are lush and vegetation coverage is high. Therefore, vegetation, fallen leaves, etc. near the photovoltaic power plant may cause obstruction and cast shadows on the photovoltaic panels; In severe weather conditions such as heavy wind and snow, the floating dust is easy to attach to the photovoltaic power station to form a barrier. The photovoltaic power generation efficiency will be reduced by 17% due to the blockage of the photovoltaic power station caused by the ash deposition on the test surface. The efficiency will be reduced by as much as 40% when the ash deposition is serious; In different seasons, photovoltaic power plants located under migratory bird migration routes may be covered by fallen bird droppings due to the impact of bird migration. When blocking occurs, the temperature rise of the blocked part of the photovoltaic power station will be far greater than that of the light part, forming a hot spot fault, which will affect the form of local heat transfer of the module, leading to the reduction of the efficiency of centralized photovoltaic power generation, and in serious cases, will affect the service life of photovoltaic modules.

Slope effect: the slope angle of photovoltaic power station has a great impact on its power generation efficiency. In the mountainous photovoltaic power station in the plateau mountainous area, the slope of the mountain slope will affect the efficiency of centralized photovoltaic power generation. The slope with too large slope is not conducive to the laying of photovoltaic power station, and will make the photovoltaic power station in a large slope angle. The experimental results show that the influence of the tilt angle of the photovoltaic power station on the power generation of photovoltaic modules is about 12% within the angle range of geographical latitude proximity, and setting the appropriate tilt angle of the photovoltaic power station has a significant benefit to the efficiency of centralized photovoltaic power generation.

Temperature and humidity impact: when the ambient temperature of the photovoltaic power station is too high, the photovoltaic power generation efficiency will decrease. The test shows that when the temperature of the monocrystalline silicon cell increases by 1 ℃, the photovoltaic power generation efficiency will be reduced by 0.36%. Too high air humidity will increase the reflection and scattering of solar radiation from the air, resulting in the reduction of solar radiation that can be received by photovoltaic power stations, thus reducing the power generation efficiency and affecting their power generation.

In summary, the site selection of photovoltaic power stations should prioritize the selection of unused land, barren soil, and slopes, avoiding areas with high vegetation coverage; Photovoltaic power plants should undergo regular cleaning to remove debris attached to the photovoltaic panels and reduce the impact of dust and impurities on the performance of the plant. The cleaning time should avoid periods of high daytime temperature or strong sunlight, to prevent cold water surges from causing trauma and stimulation to the surface of high temperature photovoltaic power plants, as well as the occurrence of artificial shadows blocking the photovoltaic power plant and causing hot spot effects.

More information for:www.suness.com

[youess]

Comparison of New Energy Storage between China and Foreign Countries

Against the backdrop of the "Carbon neutrality" strategy, China's new energy storage industry has ushered in a new era. As of the end of 2022, China has put into operation power storage projects with a cumulative installed capacity of 59.8GW, accounting for 25% of the global market size. Among the new energy storage installations in the country, lithium-ion energy storage has become the main force of energy storage in recent years due to its advantages such as fast charging and discharging speed, high comprehensive efficiency, strong technical practicality, and few limited factors. Energy storage accounts for 97% and is in an absolute dominant position. China, Europe, and the United States continue to lead the development of the global energy storage market, accounting for a total of 86% of the global market. Despite the rapid increase in upstream raw material prices, the cost of energy storage battery systems with lithium-ion batteries as the mainstream still shows a downward trend. The energy density of lithium-ion batteries for energy storage has more than doubled compared to ten years ago, and the power density has increased by about 50%. Currently, a relatively complete industrial chain has been formed.

The types of lithium batteries used for energy storage batteries in new energy power stations at home and abroad are different. In China, FLP (Lithium iron phosphate) is mainly used for energy storage batteries, and its share is up to 53%, more than ternary materials. In foreign countries, especially South Korea and the United States, ternary lithium is mainly used for energy storage batteries. The energy storage batteries used in new energy power stations started early abroad, and the early energy storage batteries used were mainly NCM (ternary lithium iron) batteries produced by Korean companies, with a high market share. However, power stations based on NCM batteries have had many safety accidents in South Korea in recent years. At the same time, with the large investment of domestic enterprises in the Technology roadmap of LFP batteries in 2021, the cost of LFP batteries will be significantly reduced, and the recognition of the safety and economy of LFP batteries at home and abroad will be increasingly high. It can be predicted that with the continuous investment of enterprises, the performance and cost advantages of LFP batteries will further expand, becoming the mainstream Technology roadmap of energy storage batteries for new energy power stations.

FLP batteries are more competitive in price compared to ternary lithium batteries, and have longer safety and cycle time:

Raw material cost: The positive electrode material of FLP batteries uses relatively inexpensive iron ore, while NCM batteries use more expensive materials such as cobalt, nickel, and lithium. Therefore, from the perspective of raw material cost, FLP batteries are relatively cheaper.

Stability and safety: FLP batteries have relatively low requirements for battery design and system safety due to their high chemical stability and good resistance to overcharging, discharging, and high temperatures, reducing costs. In contrast, NCM batteries require stricter control and protection measures to ensure their stability and safety, which may increase costs.

Market demand and scale effect: Due to the increase in market demand and the expansion of production scale, the cost of NCM batteries is gradually decreasing. However, FLP batteries still have a competitive advantage in price due to their maturity and relatively low manufacturing costs.

Longer cycle life: FLP batteries are known for their longer cycle life, with a typical cycle life of 2000 to 5000 complete charge and discharge cycles, up to 15 years. It depends on factors such as battery design, manufacturing quality, and usage conditions.

NCM batteries have advantages in energy density and low temperature resistance:

High energy density: NCM batteries have a higher energy density compared to FLP batteries, which means they can store more electrical energy per unit volume or weight, making them more advantageous in applications such as electric vehicles that require longer range.

Low temperature performance: The lower temperature limit of FLP batteries is -20 ℃, and the electrical performance is poor in low temperature environments. The capacity retention rate of LFP is approximately 60-70% at 0 ℃, 40-50% at -10 ℃, and 20-30% at -20 ℃. The low-temperature limit of NCM is -30 ℃, and its low-temperature discharge performance is good. Under the same low temperature conditions as LFP, the winter range attenuation is less than 15%, significantly higher than LFP. It can be seen that the low-temperature performance of FLP is worse than that of ternary lithium batteries.

In summary, FLP batteries have higher high-temperature resistance, more competitive prices, and longer cycle life. Compared with FLP batteries, NCM has a higher density and low-temperature performance, and the lifespan of ternary lithium batteries may be further reduced under high temperature and high discharge rate conditions. It should be noted that these advantages are relative, and the selection of specific applications should comprehensively consider many factors, such as cost, safety, energy density, cycle life, temperature conditions, and application requirements. Therefore, when choosing a suitable battery technology, it is necessary to evaluate and weigh based on specific needs.

More information for: www.suness.com

[youess]

Which battery is better for inverter

Solar energy has gained significant popularity as a renewable energy source, and solar inverters with batteries have become a crucial component of efficient and reliable solar power systems. Among various battery options available, the LiFePO4 (Lithium Iron Phosphate) battery stands out as a promising choice for the best inverter battery 200ah. In this article, we will explore the advantages of using LiFePO4 battery in a solar inverter system, and why it is considered the best option for your energy storage needs.

 LiFePO4 battery exhibits exceptional performance characteristics that make it an ideal choice for solar inverters with batteries. Firstly, it offers a high energy density, allowing it to store and deliver more energy efficiently. This means a longer backup power duration and enhanced overall system performance. Additionally, LiFePO4 batteries have a longer cycle life compared to other battery chemistries, ensuring a more durable and reliable power storage solution for your solar inverter system.

• Ease of Installation

The installation of a solar inverter should be as simple as possible. This way, you can install them without any hassles.The 200ah LiFePO4 has a moderate body shape and can achieve this without affecting the quality and layout of the building.With a lot of brands offering solar inverters, finding the one with all the best features can be difficult. You can consider buying a solar inverter from Suness. They are a reputed brand that offers a variety of quality solar products.

• Safety and Stability

Safety is a crucial factor when selecting an inverter battery, and LiFePO4 batteries excel in this aspect. They are inherently more stable and less prone to thermal runaway or combustion risks. With advanced built-in safety features, such as overcharge and over-discharge protection, as well as thermal management systems, LiFePO4 batteries offer a safer and more reliable energy storage solution.

•Efficiency

 LiFePO4 batteries have a significantly higher charge and discharge efficiency compared to traditional lead-acid batteries. They can efficiently absorb and store the energy generated from solar panels, resulting in faster charging times and higher overall system efficiency. This ensures that your solar inverter system can maximize the utilization of solar energy and provide a reliable power supply for your electrical appliances.

•discharge rate

High discharge rate: LiFePO4 batteries can provide high discharge rate and have low self discharge rate, which means they can release a large amount of electrical energy in a short period of time. This is very important for responding to high power demand equipment or power demand in emergency situations; Even when not in use for a long time, they can maintain charge for a long time. This reduces the need for frequent charging during storage.

Conclusion: When it comes to selecting the best battery for a solar inverter, the LiFePO4 battery emerges as the top choice for a 200ah inverter battery. With its superior performance, enhanced safety features, and high charging efficiency, the LiFePO4 battery offers a reliable and efficient energy storage solution for your solar power system. Investing in a LiFePO4 battery ensures longer backup power duration, increased system durability, and contributes to a greener and sustainable future.

More information for：www.suness.com/www.youess.com

[youess]

How long will a 300ah lithium battery last？

LiFePO4 batteries are widely used in fields such as solar systems, electric vehicles, and energy storage systems. When purchasing a LiFePO4 48V lithium battery, it is crucial to understand the battery's lifespan. For LiFePO4 300Ah lithium batteries, their cycle life is usually longer, reaching thousands of cycles. This article will explore what affects the cycle life of LiFePO4 300Ah big battery 48v and provide practical suggestions to extend the battery's service life.

Configuring multiple LiFePO4 batteries in parallel can increase the system's capacity and power output. For LiFePO4 300Ah batteries, configuring multiple batteries in parallel can further improve the capacity and performance of the system. Parallel configuration also helps to balance charging and discharging, as well as reduce the load on individual batteries, thereby improving system stability and battery life. Therefore, how to correctly parallel is crucial.

• Safety considerations

When configuring battery packs in parallel, appropriate ventilation and heat dissipation measures should be considered, and exposure to high temperatures or direct sunlight should be avoided to ensure the safety of the battery packs.

• Same state

Before parallel connection, ensure that all LiFePO4 batteries have a similar state of charge. If there are differences, they should be charged or discharged to a similar state of charge first.

• Same model and capacity

Ensure that all LiFePO4 batteries have the same model and capacity. Mixing batteries of different models or capacities may lead to uneven charging and discharging, affecting system performance and battery life.

• Battery Management System

For large battery packs, it is best to use a BMS which can monitor the real-time status of batteries, achieve dynamic balancing, ensure that the charging status of each battery remains consistent, and provide protection functions such as overcharging, discharging, and overcurrent protection.

The cycle life of LiFePO4 batteries is also influenced by factors such as charge discharge rate, deep discharge degree, and charging control.

• Charging and discharging rate

Excessive charging and discharging rates can lead to excessive chemical reactions within the battery, increasing battery loss and heat generation, thereby reducing battery life. Therefore, when selecting solar cells, it is necessary to ensure that the rated power of the inverter or other charging and discharging equipment matches the rated power of the battery to avoid exceeding the rated charging and discharging rate of the battery.

• Degree of deep discharge

Deep discharge can increase the loss of internal chemical reactions in batteries, which may lead to structural damage and reduce the capacity and performance of the battery. When the battery is frequently discharged to a lower SOC (deep discharge), the cycle life of the battery will be affected. Therefore, in order to extend the lifespan of solar cells, it is recommended to avoid frequent discharge to extremely low SOC levels.

• Charging control

Reasonable charging control is the key to extending the lifespan of solar cells. Overcharging or discharging can cause damage to the battery. Therefore, appropriate charging control techniques should be used to ensure that the battery does not exceed its rated charging voltage or over discharge during charging, thereby protecting the battery from potential damage.

The LiFePO4 300ah is equipped with a BMS to detect the battery status in real-time, use the battery reasonably and correctly, extend the battery life, and bring you multiple benefits of environmental protection, energy conservation, and economy.

More information for：www.suness.com/www.youess.com

[youess]

How does an inverter work with battery

With the continuous development and maturity of solar technology, the manufacturing cost of solar household systems has decreased, which has led to more and more households choosing to install solar systems. This article will provide a detailed introduction to how 48v solar inverters work in conjunction with 48v LiFePO4 batteries, as well as their key role in home solar systems which will help you better understand and optimize your home solar system.

Firstly, we will briefly introduce the basic principles and functions of LiFePO4 batteries and solar inverters.

•48v LiFePO4 battery

1. 48v LiFePO4 batteries have a long cycle life and can withstand thousands of charge and discharge cycles while still maintaining high capacity and performance.

2. Compared with other lithium batteries, 48v LiFePO4 batteries have lower fire and explosion risks, because of their high chemical stability, they are not prone to Thermal runaway.

3. The 48v LiFePO4 battery can provide higher energy density and more energy storage, making it an ideal energy storage solution in solar systems and other applications.

•48v solar inverter

Solar inverters are the core equipment in solar systems, responsible for converting the energy generated by direct current (DC) solar panels into alternating current (AC) electricity to meet household electricity needs.

1. The 48v solar inverter converts 48v DC power into standard AC power required by households, allowing solar power generation to be directly used for household equipment such as appliances and lighting fixtures.

2. 48vsolar inverters typically have intelligent control functions that can monitor battery status and solar power generation, achieving optimal energy management.

3. It has multiple protection functions, such as overload protection, overvoltage protection, short circuit protection, etc., to ensure the safe operation of the system.

Next, we will delve into how solar inverter for home and 48v LiFePO4 batteries work together in depth.

1. Solar panels convert sunlight into direct current energy, which is then transmitted to a 48v LiFePO4 battery to store excess energy for use by households at night or on cloudy days. Once the battery is fully charged, the charging controller will automatically stop the solar panel from charging the battery to avoid overcharging and extend the battery life.

When a household needs electricity, solar inverter for home converts the direct current energy stored in the 48v LiFePO4 battery into the alternating current energy required for household electricity, in order to supply the household appliances and equipment. The inverter can convert DC power into standard 110v or 220v AC power, ensuring the normal operation of the electrical appliances.

Through the introduction of this article, we have learned how 48v solar inverters work together with 48v LiFePO4 batteries. This collaborative work enables household solar systems to achieve independent power supply, reduce dependence on traditional energy, and achieve environmental friendliness and economic benefits. Home solar systems can achieve independent power supply, reduce dependence on traditional power networks, reduce energy costs, provide a sustainable energy solution for households, and promote a greener and more sustainable future.

More information for：www.suness.com/www.youess.com

[youess]

LiFePO4 Battery, Solar Inverter, Solar Panel, Solar Energy System

Shenzhen Youess Energy Storage Technology Co., Ltd. is a new energy enterprise under china listed company FANGZHENG TOOL (300998). Our compa

Hi everybody! Look at here. Our company, Shenzhen Youess Energy Storage Technology Co., Ltd, have more than 10 years of technology research and development experience and engineering design experience in the field of photovoltaic and energy storage.

Corporate mission: To bring clean energy to every household🌱. Corporate vision: To became a global leader in intelligent energy. Enterprise core values: love struggle,pragmatic and promising.

What can you get from our company? ☞The most competitive price. ☞Provide OEM/ODM service. ☞Oversea warehouse stock and timely delivery. ☞Free after-sales maintenance. ☞Professional solar system solution. Company website: www.suness.com Alibaba website: suness.en.alibaba.com Email: [email protected] Wechat/Whatsapp: [phone]

More information for：www.suness.com/www.youess.com