SMUD Solar Panels Polycrystalline CNPV-310W High Performance 72 Cell

SMUD Solar Panels Polycrystalline CNPV-310W High Performance 72 Cell

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 25 pc

Supply Capability:: 100000 pc/month

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FAQ

We have organized several common questions for our clients，may help you sincerely：

①What price for each watt?

It depends on the quantity, delivery date and payment terms,

②What is your size for each module? Can you tell me the Parameter of your module?

We have different series of panels in different output, both c-Si and a-Si. Please take the specification sheet for your reference.

③Can you provide the peripheral products of the solar panels, such as the battery, controller, and inverter? If so, can you tell me how do they match each other?

Yes, we can, we have two companies for solar region, one is CNBM International, the other is CNBM engineering Co.

We can provide you not only the solar module but also the off grid solar system, we can also provide you service with on grid plant.

④What is your warranty system?

Our product performance guarantees for 25 years

• 12 years guarantee for workmanship

• Timeliness of delivery

• Quality Products certified (TÜV, UL, CE, ISO)

⑤How do you pack your products?

We have rich experience on how to pack the panels to make sure the safety on shipment when it arrives at the destination.

⑥ Can you do OEM for us?

Yes, we can.

⑦How long can we receive the product after purchase?

In the purchase of product within three working days, We will arrange the factory delivery as soon as possible. The pecific time of receiving is related to the state and position of customers.Commonly 7 to 10 working days can be served.

Q: My hubby and I are waiting to move in to our camper but have to figure out how many solar panels, batteries, etc. to get. I can't find the info per appliance for Watts and amps, but does anyone have a good, general idea of how many Watts it'd take to run the whole shabang? It's a 999, 25-foot Sportsmen tag-a-long, if that helps..It's got the following, and we'd like to run the propane things off of electric:*Refrigerator/freezer*Microwave*Oven/stove*AC/Heat*Will have a tv, phone chargers, laptop charger, but those will be unplugged when not in useThanks so much! It's such a headache.. You get SO MUCH different info from different places.. OI..: Running an oven or stove on solar is not a practicality; too much power is needed, use gas. Ditto, heating using solar electricity is not a practicality, and AC would also be asking a lot. The other things, within limits, might be do-able. You'll be needing as many solar panels as you can fit on. If I was you I'd consult a solar installer about how big your battery bank should be once you have decided how many Watts of panels you can put on.

Q: What in the solar panel wares out so that the panel can not convert the suns energy to electric energy? Please post were you get answers.: Panel degradation can occur in many ways, but they generally take a long time (40yr old panels are still working...). One problem is diffusion. Since the cells are at a finite temperature and receive energy from the light, atoms in the structure can migrate around the cell. If you mix up materials from either side of the junction, you can reduce or remove the internal field and so charge separation no longer occurs, meaning no more current output. This is generally a very, very slow process. My current research is on the back contacts of cadmium-telluride solar cells. CdTe forms a junction with metals, and this junction has a built in electric field that tries to stop the current going out of the cell. This is bad! It reduces the power you get out. To overcome this, copper is sometimes added. This really cuts down on the restrictions on current, but copper is very diffusive. Within weeks at room temperature it can jiggle its way along grain boundaries (the solar cells aren't one big crystal, but a load of small grains. Our lab makes ones about 0.006mm across). Whilst copper at the back contact is good because it cancels out the effect of the field there, once it gets to the cell junction it has a worse effect. It can act as a 'recombination centre' or 'shunting pathway' - it either absorbs the free charges or takes them somewhere useless and cuts the power output. Copper is a very obvious and quick acting cause of solar panels reducing in output. I believe a similar effect is true for other cells, just with different materials. The quality of the junction degrades slowly as heat and light give energy to atoms in the lattice and make them jiggle around a bit. Once you have things out of place, performance degrades.

Q: Are solar panels durable?: Yes, solar panels are durable. They are designed to withstand various weather conditions, including hail, snow, and strong winds. Additionally, most solar panels come with warranties that guarantee their performance for 25 to 30 years, indicating their long-lasting durability.

Q: I need a new roof soon and I was wondering what the difference in cost would be from a standard shingle roof to a roof including solar panels. Does anyone know the cost difference?: The solar panels are very expensive to provide much power. If u go that way do not skimp on the support as a high wind will blow them away. In Ecuador I put in a remote site for communications. It was working good when a Strong wind blew $0.000 worth of solar panels all over the jungle.

Q: Are there any tax credits available for installing solar panels?: Yes, there are tax credits available for installing solar panels. The federal government offers a Solar Investment Tax Credit (ITC), which allows homeowners and businesses to deduct a percentage of the cost of purchasing and installing solar panels from their federal taxes. Additionally, some states and local jurisdictions also provide their own incentives and tax credits for solar panel installations.

Q: Can solar panels be used to power an entire office building?: Yes, solar panels can be used to power an entire office building. By installing a sufficient number of solar panels on the roof or in a separate solar farm, it is possible to generate enough electricity to meet the energy demands of an office building. Additionally, advancements in solar panel technology and energy storage systems make it more feasible to rely solely on solar power for an office building's energy needs.

Q: I'm going to this camp and the instructors asked us to be prepared tomorrow to build a sun tracker for a solar panel. Does any one have any ideas, tips, or advice?: tbls0 has a good idea for the tracker, but let's take this one step farther. A clock motor large enough to move a solar panel, unless it is a very small one is going to be large, and expensive. Use the timer motor, as suggested, but attach a slotted disk to it, with a light source on one side, and a detector on the other side. As each slot comes up and allows light to pass through, this creates a one shot pulse which is used to cause a stepper motor to move position to keep the panel aimed at the sun. At the end of the panel travel for the end of the day, a switch could be set to close, bypassing the step control to put the motor into full constant speed reverse, this causing the panel to swing back to the morning position. The whole affair gets it's start up call by means of a light detector, similar to those used to turn lights off at sun up. The control would, of course be set to turn the system on to track the sun during the day. While some digital control is going to be needed, the system would not need a computer to run it.

Q: How do I clean my solar panels?: To clean your solar panels, start by checking the manufacturer's instructions as some panels may have specific cleaning requirements. Generally, you can clean them by gently rinsing with water using a hose or a bucket and sponge. Avoid using abrasive materials or harsh chemicals that could damage the panels. If there's stubborn dirt or debris, you can use a mild soap solution with a soft brush to gently scrub the surface. Regularly cleaning your solar panels will help to maintain their efficiency and ensure optimal energy production.

Q: Can solar panels be installed on a school or educational institution?: Yes, solar panels can be installed on a school or educational institution. In fact, many schools and educational institutions are increasingly adopting solar energy as a sustainable and cost-effective solution for their power needs. Solar panels can be installed on rooftops, parking lots, or open areas to generate clean electricity, reduce carbon emissions, and provide educational opportunities for students to learn about renewable energy.

Q: i trying to make a solar panel. right now i dont have money to go and buy a copper sheet. so can i make it out of aluminum foil. if there is a way please tell me how. and what do i use for wires. i making this to charge batteries.: You can't make a solar panel to generate any reasonable amount of electricity from that. You need a semiconductor to start with, in order to have something that can generate free charge carriers(electrons and holes) from photons. Then you need a junction which can separate the charges. In principle you could make a Shottky Diode solar cell from copper if you could find a doped semiconductor to bond a sheet of it to the copper. To form a decent electric field there should be a significant difference in work functions between the copper and the semiconductor, this will generally require the semiconductor to be doped. On top of this you would need a transparent conductor (most used are things like ITO or other 'TCOs' - Transparent Conducting Oxides) to be the top electrode to inject replacement charges into the semiconductor to replace the effect of recombination current. In summary, it's difficult to DIY. You generally need complicated machinery to get decent crystal growth and/or doping.

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