250 Watt CNBM Monocrystalline Silicon Solar Panels for Home Use
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 watt
- Supply Capability:
- 500 watt/month
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Specification
Material:
Polycrystalline Silicon
Max. Power(W):
30000
Number of Cells(pieces):
72
30W CNBM Monocrystalline Silicon Panel for Home Using
Production description
The large magnitude of solar energy available makes it a highly appealing source of electricity. The United Nations Development Programme in its 2000 World Energy Assessment found that the annual potential of solar energy was 1,575–49,387 exajoules (EJ). This is several times larger than the total world energy consumption, which was 559.8 EJ in 2012.
Feature
1.High conversion efficiencies resulting in superior power output performance.
2.Outstanding power output even in low light or high temperature conditions
3.Optimized design for ease of soldering and lamination
Physical characteristic
1. Rigorous quality control meets the highest international standards.
2. High-transmissivity low-iron tempered glass, strong aluminium frame.
3. Using UV-resistant silicon.
4. IS09001/14001/CE/TUV/UL
packaging
26pcs in one carton 6pallets in 20foot container 14pallets in 40 foot container.
- Q: Ok so i can have a problem i have two 5 watt 2 volt solar panels a 2 volt battery and a 400 watt ac 2 volt dc inverter i believe im only getting 5 watts from from my solar panels thats the equivalent of one is there any way i could get full voltage from my solar panels without theoretically burning my wallet.. please help
- I think you need to take some basic courses on electricity. Usually, 8 volt solar panels are required to charge 2 volt batteries. The voltages of photovoltaic cells are set by the material they are made of, only current changes. If you hook up a 2 V solar panel to a 2 V battery, no current will flow, nothing would get charged. You would need some elaborate DC to DC voltage converters to charge a 2 V battery from 2 V solar panels. Solar panels can be connected in parallel or in series, as you've made the mistake of buying 2 V solar panel, you would have to wire them in series and have a charge controller that could limit the voltage of the charge. Did it ever occur to you that two 5 watt solar panels would not be able to provide the power needed by a 400 watt inverter? You're just running off your battery with your set up. Solar power is expensive power, you can not have solar without burning a hole in your wallet.
- Q: I don't have a regulator connected as they are a little expensive for a pensioner, If I join the panels into line to the battery bank from the roof should that be OK.?
- Two things on a regulator: a) It will optimize the charge to the batteries - and thereby distribute the most possible power to your active circuits during the day. b) It will prevent the power from the panels from boiling (no kidding) the batteries - no small thing as they are the second largest investment you have after the panels themselves. This is much more critical if you have sealed or Zero-Maintenance batteries. I strongly suggest that you get a regulator as it will significantly lengthen battery life. Follow the directions on the regulator for optimum input voltage and it will let you know whether all the panels should be in series, parallel or series/parallel. But cutting to the chase, you can certainly gang up panels as needed.
- Q: hi so im doing a school project thing and they have a lot of different questions for us that help us decide whether we would rather a city have a nuclear reactor, or solar panel. But i cant seem to get the last 2 questions...help please???so question ........What types of emissions, if any, are produced by each type of generating station? Do these emissions affect human health?question 2.....What are the long term financial costs associated with maintaining each type of generating station?thanks!
- There's no standard nuclear reactor, but if we take a GW nuclear plant, it can generate about 8 terawatt-hours/year. A 200 watt solar panel can generate about kilowatt- hour/day, or 365 kwh/year, so that's about 2 million 200 watt solar panels. However, the power output from the nuclear plant is controllable by the operators, where solar panels only operate at full output for a few hours/day (on clear days - less if there's cloud). Therefore, to compare the two, you have to factor in some kind of energy storage or backup which will increase the cost of the solar installation (perhaps by a factor of two or more). Despite claims of solar being cheaper than coal now, when one compares apples to apples (i. e. total energy produced, and controllability) solar is still several times more expensive than coal, and about twice as expensive as nuclear even in the U. S. A gram of U-235 can make usable energy equal to three metric tons of coal. Solar energy production has no hazardous by-products, but manufacture of the panels can involve some very hazardous materials like fluorine (for silicon panels) or cadmium (for CdTe panels). This is part of the reason panel manufacture has gone to Asia - they have fewer environmental regulations and it's easier to dispose of the byproducts of production. DK
- Q: Okay so.. if light deflect the light of the sun and black absorbs it, then aren't solar panels just absorbing more light, sun and heat into our atmosphere? Wouldn't this lead to an increase in global warming? Shouldn't solar panals be white? No rude answers please.
- If the panels are deployed at outer surface of atmosphere then white will reflect the sun light to outer space. If the panels are deployed at earth surface, inside the atmosphere, most of the reflected light will be bounced back to earth by the atmosphere. For the solar panels we are talking about, they need to be dark color to absorb light and turn into electricity.
- Q: I'm making a model of a solar photovoltaic tower for a school project. I need a way to store energy, and we thought about using capacitors (mainly because of our somewhat limited funding). The tower will have a small photovoltaic panel (around the size of a laptop keyboard with number pad) and some (around 50) quot;heliostats(just the mirrors, no moving parts). What kind of capacitors should i use? and would a capacitor bank be better? i am getting confused with all those uF, pF and can't see the difference.Thanx in advance
- If you have a rechargeable AA battery (NiMH or NiCad) that might work. You're not going to get much power from that size array anyway, especially if it is not in full sunlight. A Farad (F) is ,000 times bigger than a milliFarad (mF), which is ,000 times bigger (stores ,000 times more) than a microfarad (mF). pF and nF are so tiny do not even look at them. With your size array voltage might not be a problem, but be sure to check that the voltage rating of the capacitor is less than whatever the array can make. Some people buy those solar yard lights, which seem to break often. You might be able to get some and use the contents for your project (pre-wired circuits).
- Q: Can solar panels be installed in urban areas?
- Yes, solar panels can be installed in urban areas. In fact, urban areas provide great opportunities for solar panel installations due to the abundance of rooftop space and potential to generate clean energy in densely populated areas.
- Q: Can solar panels be used to power a train?
- Yes, solar panels can be used to power a train. Solar panels can convert sunlight into electricity, which can then be used to power various electrical systems on a train, including propulsion. However, the feasibility and effectiveness of using solar panels to power a train depend on factors such as the size and efficiency of the solar panels, train energy requirements, and the availability of sunlight.
- Q: For example, how many large solar panels would you need to operate a greenhouse with lighting for simulate sun during cloudy weather, a scheduled sprinkle system and other such things?I'm looking for a very in depth answer.
- if you are talking electrical solar panels, they are rated in watts they generate in full sun. usually these panels are used in tandem with batteries, so they charge up during the day and the batteries hold a reserve of power for later use. If you figure 8 hours of useful sunlight per day, then a 40 watt panel will light a 40 watt bulb for 8 hours. you can also measure capacity in watt-hours. this would be 40x8 = 320 watt-hours. the general method is to determine how much electricity demand you have over a 24 hour period to get the total watt-hours. then divide that by the watt-hour capacity of one panel to get the number of panels needed.
- Q: Are solar panels fire hazards?
- Solar panels are generally not considered fire hazards. While there have been some isolated incidents of fires related to solar panels, they are extremely rare and typically caused by faulty installations, damaged equipment, or external factors. When installed properly and maintained regularly, solar panels pose no significant fire risk.
- Q: That one costs money but looks like it might work. I don't really have the money for it but if it works then it would probably be worth it. Do homemade solar panels really work or is it just a gimmick? I'm really interested to see if anyone has actually tried this and to see what they say about it.Thanks
- The technology of the solar panels is way beyond any DIY project. You can buy pre-assembled panels and install them, but you also need the devices to make the DC they generate into the AC your home needs. Also you will need the batteries for the nights and the times when the sun does not shine. Solar/ photo voltaic generation does work but is not a cost effective way to reduce your reliance on the electrical grid as of this time. They cost 2 arms and a leg, and take many years to come close to break even on the electrical savings. Do a search on the amount of power each panel will generate and then compute how much power you need and what the costs are. I believe in solar power, but not for an individual residence is it practical. Good luck.
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250 Watt CNBM Monocrystalline Silicon Solar Panels for Home Use
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 watt
- Supply Capability:
- 500 watt/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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