LiFePO4 Battery System For Households     Features:1.   Iron Phosphate-lithium Battery Powerwall ：95% DOD , More             than 6000 cycle times 2.   Long warranty period：3 years 3.   Higher energy density,smaller volume for household. 4.   Support Connected in parallel mode for expansion (up to 6        pieces）. 5.    Photovoltaic system：this battery pack is designed for household photovoltaic systems.6.     Battery management system(BMS)：the battery packs built-in BMS monitors its operation and prevents the battery from operating outside design limitations7.    Expand ability： this battery pack can be easily expanded by adding expansion battery packs in            parallel connection.8:    Easy to move.Lithium battery box with 4 pcs wheels 

Today we launched our touch color screen hybrid inverter with built in MPPT solar charge controller for 2021!New hybrid inverter has below features:1. MPPT solar charge controller built-in2. Touch color screen, intelligent control, easy operation3. Innovative operation system.All the operation adjustment can be done on the touch screen easily.Can see daily data,monthly data and total data on the screen.4. WIFI is optional.can control the inverter remotely and check the running data5. Lithium battery,gel battery,lead-acid battery are all acceptable.One touch can switch battery type!Just tell our sales the battery type when confirm order is OK.6. Conformal coating is sprayed on the surface of the PCB,provide perfect protection to the inverter. low voltage protection, high voltage protection, over temperature protection, short-circuit protection, overload protection, alarm alert.7.Big MOSFET,Big capacitor and Big heat sink. The inverter has bigger load carrying ability and higher load capacity, this series of inverter can drive not only common resistance loads,but also various kinds of inductive loads, such as air conditioner, electric drills, motors,water pump,etc.8. Low frequency transformer based design with stable quality, low failure rate and long service life (under proper operation, it can last at least 8 years)

A 5kW solar power system is a size that should easily offset a typical  home’s electricity usage. If it doesn’t, then you’ve got one serious energy guzzler of a home and should really consider an energy audit before going solar!5kW solar systems are also the minimum system size you should be considering if you’re looking to add batteries to your system in the future. Here’s what you need to know about 5kW systems, including price information.How many solar panels will you need?To make up a 5kW solar system, you need 12 solar panels, assuming you use 420W panels – that will actually give you 5.04kW.Each panel will be about 1.95m x 1m, so you’ll need at least 23.4m² of roof space.To give you a feel for how big 23.4m² is, this picture may help:How much electricity will a 5kW solar system generate?A 5kW solar system will generate approximately 28kWh per day, depending on your location and a variety of other factors. The average home uses about 18kWh per day.How much money will a 5kW solar system save?You may be thinking: “If the 5kW system offsets my energy usage, then surely it’s going to wipe out my electricity bill?”Unfortunately it is not that simple! The amount the electricity companies will pay you for your solar energy (what’s known as a feed-in tariff) is, way lower than the price they charge you to buy the same electricity from the grid! Plus, there’s other costs on a bill such as supply charges, aka service charges. However, a 5kW solar power system is still an excellent investment.Let’s say you get paid about 8c per kWh for exported energy (some retailers offer more) compared to 30c per kWh to buy electricity back from the mains grid. Here’s 3 scenarios to show how the 5kW system payback works:1) Use all the solar electricity by the 5kW systems in your home. This is unlikely unless you have a mini aluminium smelter in your back garden – or you operate a small business from your home.If that were your situation, you would save approximately $2100 in the first year, and around $67,000 over 20 years; taking electricity inflation of 5% into account. Those are some serious savings.2) Export half the electricity: You would save about $1400 in the first year.3) Export all the electricity: You would save about $700 in the first year with a 5kW system.If you think that this sounds very counterintuitive, then you can read about the relationship between exports and payback here.You can see the numbers for yourself and change all the assumptions to see how they affect payback with my solar payback calculator.How much does a 5kW solar power system cost?The cost of a 5kW solar system will be around $4500 before SUNCHEES , then you should get about $4200 discount .How long before a 5kW solar power system pays for itself?If you are not exporting the energy and assuming you’ve paid a reasonable price for a 5kW solar system, then you should see a payback period of less than 5 years – so a fairly rapid payback timeframe.  It can be a labo...

Today I wanted to share this: How to verify the solar panel you get was good quality or bad quality? This is very difficult for many customers,who is not professional.Last week,I got a inquiry from alibaba,it seems he wanted to buy the solar panel from us,then asked our price and said he could get more cheaper from other suppliers and asked our brand name, I told him our brand name was "SUNCHEES" ,then he said "low quality"...If you do not buy any our solar panels, how do you know our quality? (Finally I asked him, whether you only buy low quality and cheaper price,he said: Yes). I believe there are customers,who needs low quality,but also customers who needs good quality, I respect both,but without real evidence,you can not say who is good quality and who is low quality.Now I talk about the way to verify the solar panels:1)Please check the photos I attached. There were SUNCHEES Mono 300W solar panel test report by the laboratory in Research Laboratory.Due to the govenment of Nigeria needed this test report for their government projects,so our factory did this test solar panels. From the test report,you can see the 1000W/m2,it should be 300W. as you can see the test result of our solar panel, there were 344W and 345W based , the result was perfect,our quality standard is very higher. now SUNCHEES name is listed in the government of Nigeria.I showed this exmaple to tell customers that you can do the same thing, when you get all the solar panels,you can choose 1-2 panels to be tested in the local laboratory,then everything will be clear. 2)If you get some famous brand name solar panels from local distributor,you can send all the series number to the original factory by email to check whether these series number is true and whether these series number solar panels were sold to your market. If there is no answer or negative reply from the origianl factory, that means these solar panels are fake,second hand or bad quality.(it is easy to find the contact information email for these original factories from internet)The customer always sent me the series number by email to our official email:admin@sunchees.com and asked us to check whether these solar panels are original from us before they buy it from our local distributor. 3)I found there are many suppliers are only offer fake power now,even some famous brands in the market.(these famous brands only do negative tolerance,but lable it with postitive tolerance,for example,395W lable it with 400W,customer will not find the difference) But for other suppliers,they might offer much lower power,but label it with bigger power.(like 450W panel lable it with 500W,or 360W panel lable it with 400W), the prices you bought from them seems cheaper,but it was higher too. For exmaple: if you are buying the solar panel with US$0.25/W for 400W,one panel cost is US$100/pc,but the actual power is only 360W,this mean US$64/360W=US$0.27/W, can you understand that? You did not get the cheap pric...

Africa, inadequate grid supply has exacerbated the deterioration of power supply and the high cost of electricity. This is a problem that many African customers are looking for solar panel systems to mention to us. Mr. Ben comes from Ebonyi, Nigeria. They have blackouts at least four to five times a day. Blackouts cause them a lot of trouble. He came to China  and met us to talk about their current electricity situation, and he didn't have so much money. But it must be solved that after the power failure, he can use the family load normally.  Our engineer designs a 5KW solar panel + 10KW inverter within his budget, this can solve he problem that he can use normally after power failure, in the future , if he have more money , He only needs to add solar panel Expand this system Mr ben receive our solar energy system, install and use it, and give us some feedback.  

What is the off-grid power generating system?Off-grid power generation system is mainly composed of solar panels, controller, storage battery, off grid inverter, solar power generation through the assembly, by the controller on the battery charge and discharge management, and to theDC for providing power to a load or through the inverter and  provide electrical power to a new type of AC load.How does the system work:This system not only has solar power system function, but also has city electricity complement function and UPS function:                       When there is sunshine, it will use sun power first;When there is no sunshine, it will use battery power;When there is no sunshine and battery power is used out, it will automatically use city electricity ( or diesel generator ) to charge battery and take the loads at the same time;When the sunshine is coming, it will automatically take use of sun power again.FAQQ: What can be included for this system from Sunchees?A: This system includes: solar panel, PV array combiner, Hybrid solar inverter with built-in MPPT controller, Maintenance-free Gel battery, Mounting structure, cables etc.Q: Is the solution for complete set? If not, what else are needed?A: Yes, we can provide complete set solution. If you don't need complete set, basic parts are available too.Q: Is the system solution always the same? Can I customize one?A: No. We have professional teams make solutions for our clients. Solutions are mainly customized based on different sunshine time and power consumption. Same power system may be with different configuration. Q: Who will arrange the shipment?A: We are doing FOB trade term. If you need, we could help you to arrange the shipment, we have long-term cooperation with good service forwarders.Q: What's the difference between off grid and on grid solar power system?A: Off grid solar power system doesn't connect to the power grid. In general, the system includes solar panels, charge controller, batteries and off-grid inverter. This system will convert the solar power into electricity and store in the batteries, and the batteries will supply appliances the electricity to work through the inverter.On grid solar power system connects to the power grid. In general, it includes solar panels, grid-connected inverter, the solar power will be converted into electricity and the electricity will be supplied to appliances directly. When there is no sunshine, the power grid will take place of the system and supply appliances the electricity to work.Q: Can the inverter switch automatically to national grid to protect batteries.A: Yes. The inverter not only can connect to national grid but also can connect to third generator, as like diesel generator. When there is no sunshine and battery power is used out, the inverter will automatically switch to use national grid power and...

Nigeria's current electricity bill is 24 naira per kWh. If prices rise by 35%, the figure will rise to 32 naira per kWh. This may further infuriate the public, who are already complaining that dealers charge more and offer less services. Global climate change is receiving more and more attention, and low-carbon economy is strongly supported by all countries. As a kind of sustainable clean energy, solar energy shows great development and application potential. At present, the rapid development of solar photovoltaic industry is a way to provide new energy in the future, and its practical application in life is more extensive. The operation cost is low, photovoltaic system uses solar energy to generate electricity, and the energy is free. Once installed, the photovoltaic system can provide power with little maintenance and operation cost. 10KW solar power system project in Nigeria for home use  Foshan Sunchees is a providing one-stop service solar power  manufacturer. We can provide engineers with installation training team, and we have safe transportation serviceOur web : www.sunchees.com 

Recently, Oxford Photovoltaic Company announced that the efficiency of its perovskite/silicon tandem structure has reached a new high, which is close to the 30% milestone, reaching 29.52%. The new efficiency record has been certified by the US National Renewable Energy Laboratory.The new record was achieved on a 1.12 cm2 battery set in the laboratory. Oxford Photovoltaic previously maintained a record of 27.3% in tandem cell efficiency and then at 28%. Then a team at Helmholtz Zentrum Berlin (HZB) increased the record to 29.15% in January 2020. Both Oxford Photovoltaic and HZB stated that they have a clear roadmap to make this record more than 30% in the near future.According to data from ASIACHEM Consulting, Oxford Photovoltaic was established in 2010 and is a spin-off company of Oxford University in the United Kingdom. In 2018, they developed a perovskite tandem solar cell with crystalline silicon as the bottom cell, and the cell conversion rate reached 28%. This kind of tandem cell can more efficiently use the high-energy blue part of sunlight, with a theoretical conversion rate limit of 43%. In the solar industry, perovskite tandem cells are regarded as a new generation technology that can reduce the cost of solar energy (LCOE) to an unprecedented level. To industry experts, Oxford Photovoltaic is recognized as a global leader in perovskite tandem cells. Its expertise in process and raw materials is protected by more than 200 patents.In order to further accelerate the industrialization of this promising technology, in March 2019, Meyer Burger Technology Co., Ltd. and Oxford PV Co., Ltd. (Oxford PV) established a strategic partnership and signed an exclusive cooperation agreement. Promote mass production of perovskite-silicon heterojunction (HJT) tandem cells

JinkoSolar's vice president Dany Qian said that the price of photovoltaic modules in the Chinese photovoltaic market has risen by 15% in the past few weeks.She told the "Photovoltaic" magazine that some key tender results recently announced show that prices have increased by 10% to 15%, and that some upcoming tenders are also being considered for price increases. "The [Chinese] market plays a vital role as an indicator of solar photovoltaic prices because it has pushed the shortage of raw materials to the forefront."According to her, the reason for this round of price increases is the insufficient supply of component frames and raw materials such as polysilicon, glass, and silver, and the current production capacity cannot meet the strong demand. She also cited a recent report by the China Silicon Association showing that the current price of monocrystalline silicon ranges from 102,000 to 107,000 per ton (approximately US$15,800 to US$16,600), and the average transaction price is 103,400 yuan. /Ton, up 11.78% month-on-month. "Since March, LONGi's single-chip prices have been raised. G1 and M6 (170μm) mono-crystalline silicon wafers have been quoted at 3.55 yuan/piece (0.55 US dollars) and 3.65 yuan/piece respectively, an increase of up to 9%." "Based on this, 175μm has risen by RMB 0.05/piece (US$0.01). She also explained that the prices of raw materials such as steel and aluminum have also risen sharply recently.