Eco Solar Panels 250W 20V Polycrystalline Solar Module from CNBM

Eco Solar Panels 250W 20V Polycrystalline Solar Module from CNBM System 1

Eco Solar Panels 250W 20V Polycrystalline Solar Module from CNBM

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 1000 watt

Supply Capability:: 20000 watt/month

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Quick Details

Place of Origin:	Germany	Brand Name:	SOLARLAND	Model Number:	SLP250-20
Material:	Monocrystalline Silicon	Size:	164099245mm	Number of Cells:	60
Max. Power:	250W

Packaging & Delivery

Packaging Details:

1520X1030X95mm(2PCS/CTN)

Specifications

SOLARLAND 95/12V Monocrystalline Silicon Solar Panel. Use quality brand solar cells directly imported from Germany.

Panel Size	*164099245mm*
Module Type	Polycrystalline
Peak power (Pmax)	250W
Open circuit voltage (Voc)	37.8V
Short circuit current (Isc)	8.98A
Max. power voltage (Vmp)	30.6V
Max. power current (Imp)	8.17A
Operating Temperature(^oC)	-40 to 85
Power Allowance Range:	+/-5%
Max.System Voltage:	1000V
No. of cells and connections:	60(6×10)
Weight	15.00kg
All technical date at standard test condition:
Am=1.5 E=1000W/m² Tc=25

Trade & Market

	Main Markets:	Western Europe Eastern Asia Mid East Oceania Africa Southeast Asia South America North America
	Total Annual Sales Volume:	US$10 Million - US$50 Million
	Export Percentage:	91% - 100%

Advantages

Reason:

We enjoy exclusive channel to get stock solar panels at more competitive price from Trina,Hanwha,Yingli,LDK,Suntech etc.

These panels are from tier 1 solar panel manufacturers,such as Trina,Hanwha,Yingli,LDK.They are assembled with all grade A materials,only problem is that they has slight appearance defect,but due to their strict quality control,even the negligible defect will lower its grade.so they put these panels into stock.

Quality

These panels adopt all grade A materials,such as solar cell,EVA, back sheet, junction box, glass,frame,connector etc.

They have same electrical performance with grade A solar panels,only difference is the negligible superficial defect.

Our Service

Pre sale:

1.Our sales representative and engineer work together to answer your questions and offer solution for free

2.We choose the best product for you to make sure it worth its real value

3.We design the best solution with good perfomance for you,manwhile save every cent of your money.

After sale:

We provide 10 years Warranty for the product, 12 years warranty for 90% power production ,25 years warranty for 80% power production.

Factory Information

	Factory Size (Sq.meters):	5,000-10,000 square meters
	Factory Location:	B11 Huayou Dong Rd., Huayou Industrial Area, National High-tech Industrial Area, Wuxi,China
	No. of Production Lines:	Above 10
	Number of R&D Staff:	21 - 30 People
	Number of QC Staff:	21 - 30 People
	Contract Manufacturing:	OEM Service Offered Design Service Offered Buyer Label Offered

250W 20V Polycrystalline Solar Moudle from CNBM

Q: Hello Yahoo, I am doing another one of my wacky inventions however I need something that will give me 2V of power!I don't want to connect loads of AA batteries into a battery holder as this shall run out quickly and become expensive in the long run, I don't want to carry around a big car battery either.I have been searching around on OKorder .uk and found some Solar-Powered 2V Trickle Chargers. These say they shall work on cloudy days (which is perfect as the majority of the time that is all we get!) but could I use it as an independent power source?If I attached the thing I want to run to the solar panel will it supply it with 2V of power?: If you want to run something from a solar panel, you should remember that the power from the panel is only available when there is reasonable sunshine on the panel. Usually the solar panels are used with solar regulators in order to charge batteries. These batteries are used as energy storage for when the sun is not shining. Now, this does not mean that you cannot drive instruments directly from the solar panel and regulator. To do this, you will need a panel that has sufficient power to drive your instrument. An example is the solar powered garden or fountain pumps. I have driven 2V computer fans directly from the small solar panels - useful for cooling of things such as pool pump housings. The solar regulator is used to convert the solar panel output to a 3.5V output in order to charge lead acid batteries. I have used MPPT regulators (maximum power point tracking) which is more efficient than the standard solar regulator. If you don't use these regulators you may find the solar panel producing up to 7-9V in good sunshine which is not good for your instruments that are expecting 2-3V. Hence the answer to your question is that you will need to have a battery being charged to get useful power from the solar panels via a solar regulator.

Q: ) what is absolutely needed to hook up a solar panel to grid tie, what permits and/or inspectors are needed?2) if we know how many KWH's we use per month, do we just divide by number of hours per month to find out average KW usage?3) what is an estimated ratio of DC to AC transformation/convertion @ 30 C?4) do the solar panel voltages have to be the same? what would happen if the voltage going into the house is greater/lower than that of the house's defualt voltage5) for added chance of getting 0 pts add some contrators that do business in ohio for installing solar panels or sell them: The okorder The reference section has all the formulas you are looking for and there is a list of dealers by state, plus various state rebate information. Yes, you can hook up different panels to the same system. There are special controllers that regulate the voltage. I'm more of a hands on nuts and bolts guy so I can't help you with the formulas and engineering explanations. Another great place to get information is Home Power Magazine. You can get the issues online or in print. Thanks for going solar!

Q: i have to do a science fair project and thought it would be cool to make a solar powered vw bus. i have 2 6volt solar panels to power a dc motor that works off of 9v 2v or 8v. i also bought a 2nd motor because the first wasnt workin for us. this one is a 3v motor. ive had them in the sun but they wont work. please help, thanks: Make okorder

Q: Would like to know if the DIY Solar panel systems can be as efficient as a commercial grade panel.: On my website you can read my story of how my dad made solar panels at home and now he pays nothing to the electric company.

Q: A local air conditioning company is advertising combining their (newly installed) central air conditioning system for homes, with roof solar panels. They say that the combination MAY reduce your electric bill. Nothing I can see to back-up their claims. Hmmmmm. And they offer, if you can get it; central air conditioning that runs on natural gas. Again, possibly cheaper than using electricity.Has any one actually tested to find out if solar panels and/or natural gas DOES, or DOES NOT save you any money to make it worth the bother?: if you use solar panels it will make electric to run anything you want . it depends how much they charge to build the solar system if it makes sense, money wise. but if your asking if solar power makes enough electric to power an A/C the answer is , you bet your azz .. but only when the sun shines Nellie

Q: I want to buy a solar panel kit to run my central AC unit. it is a 3 ton unit. Can I do this? The electric rates in the Chicago area are skyrocketing and I can't keep paying 350 dollar electric bills during the spring and summer months: I know that in Texas we wouldn't even try to run an air-conditioner on a generator without at least a 6,000 watt generator and we would prefer a 0,000 watt generator. The calculator on the Kohler website says it'll be 7,500 watts. At $5 per watt to install a solar photovoltaic system and assuming you also need to run it through the night and taking into account that an inverter can be as bad as 60% efficient, you're talking about $87,500 just to run your AC for 25 years. The first step in going solar is to significantly reduce your energy use. You're not going to maintain your current energy use on solar, at least not cost effectively. If you did want to run an AC on solar power, you may want to look at absorption air conditioning and use evacuated tube solar thermal collectors instead but don't expect it to be cheap and it usually only augments the use of natural gas in the absorption chiller.

Q: This is for my science project and i cannot figure it outWe assumed that blue light shining on a solar panel would give off the higher volt reading because it has the shortest wavelength and the highest energy, but it was actually the lowest. Why does this happen? Im very confused And cant find the answer anywhere.... ，thank you!!: I okorder /

Q: how much do solar panels cost?: The silicon ones(last 5 to 25 years) run about $4-$5 a watt the amorphous (thin film) a little less (may last 5-0 years). If you use megawatt hour (000 kilowatt hr) a month you will need at least 3000 watts minimum. Therefore if your electric is .0 per kilowatt hr( $00 per month) the payback is around 25 years once you add the batteries plus inverters(batteries $50-$00 each)(synchronous inverter $3000 to$20000)(ie $5.00/.0=50 months at optimum output).Figure (depending where you live) probably only 50% so break even is usualy about 20 yrs.Ie you pay 20 years electric bill and hope nothing breaks(insurance not included) then you can start saveing money.

Q: Can solar panels be installed in areas with high levels of saltwater exposure?: Yes, solar panels can be installed in areas with high levels of saltwater exposure. However, it is important to choose solar panels that are specifically designed to withstand such conditions. These panels are typically made with corrosion-resistant materials and undergo rigorous testing to ensure durability in marine environments. Regular maintenance and cleaning may also be required to prevent salt buildup and optimize performance.

Q: I have an off-grid 24volt existing system using 8 x 80 watt 2volt, wired at 24volts, mono solar panels with deep cycle batteries,operating now. I have been given a 240 2volt polly cryst. panel. Can I add this panel to existing panels as above. Thank you, dumb solar man: Assuming that you have / will upgrade wiring sizes to carry the extra wattage, that the new total wattage resulting from the addition doesn't overload any existing charge controller, diodes and / or inverter you have installed, then paralleling it straight into one of the other 2 volt groups should do nothing but add current to the system. True, it will be somewhat imbalanced, but it will work. Your other options would be to reconfigure everything down to it's native 2 V configuration which will raise current and lower voltage, with the additional panel creating the additional current to raise the wattage or to put it in series with the other 4 panel clusters so that you would get 36 V and additional current to account for the raised wattage. One last approach might be to set it up on another battery bank of it's own (small and at 2 V) to then connect to the same inverter. You'd be getting more power and storage capability that way, sort of a partial backup system, really, that will take some of the load off the other components to help extend their useful lives and get a bit more flexibility into it as well. The choice is yours here. That is all the ways that the system can be connected in, assuming everything in the first sentence checks out;-) It's difficult to make a recommendation without knowing what other components are in use and what the maximum ratings they carry are. Just remember that parallel connections add current and voltage stays the same, series connections add voltage and the current remains the same and you can figure out what to do with this thing to help you if you stay within maximum ratings for the charge controller, diodes and / or inverter involved. Good luck and stay safe!

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