Harbor Freight Portable Solar Panels - Solar Panel Solar Module PV Solar Grade 290W
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 watt
- Supply Capability:
- 10000000 watt/month
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Specification
Solar panel material
1. glass
Its main role is to protect the power generation ( solar cells ) , there is a selection of light transmittance requirements : 1 ) must be high transmittance (typically 91% or more ) ; 2 ) super white steel processing.
2. EVA
For bonding glass and power generation fixed body ( such as cells ) , transparent EVA material directly affect the life of components exposed to the air EVA prone aging yellow , thus affecting the transmittance components , thus affecting in addition to generating the quality of the components itself, the quality EVA lamination process on the component manufacturers is also very large, such as EVA plastic viscosity of non-compliance , EVA and glass, back bonding strength is not enough, can cause premature aging EVA, the affected component life.
3. Solar cells
The main role is to generate electricity , the electricity is the main market mainstream film crystalline silicon solar cells , thin-film solar cells , both have their advantages and disadvantages . Crystalline silicon solar cells , the equipment costs are relatively low , but the high cost of consumption and cells , photoelectric conversion efficiency is high, the next generation in outdoor sunlight is more appropriate ; higher thin-film solar cells , the relative cost of equipment , but the cost of consumption and battery low, relatively low photoelectric conversion efficiency of crystalline silicon solar cells , but the effect is very good low-light , in the ordinary light can also generate electricity , such as solar calculator .
4. backplane
Sealing, insulation , water ( usually with TPT, TPE , etc. ) the material must be resistant to aging , component manufacturers generally have warranty for 25 years , tempered glass, aluminum is generally no problem , the key lies in whether the backplane and can meet the requirements of silica gel.
PERFORMANCE
- High effi ciency, multicrystalline silicon solar cells with high transmission and textured glass deliver a module effi ciency of up to 16.0%,
minimizing installation costs and maximizing the kWh output of your system per unit area.
- Tight positive power tolerance of 0W to +5W ensures you receive modules at or above nameplate power and contributes to minimizing
module mismatch losses leading to improved system yield.
- Q: Online stores selling solar photo-voltaic generation kits gives specs indicating the power generation capability of the system. For example, Solar World Grid-Tie Solar Electric System with 245W Panels PV Powered PVP2000 Inverter, .2 to 2.4 kW. This seems to indicate that the system can generate .2 to 2.4 kW. Is that per day? Per month? I'm trying to calculate the return on investment, but can't because I don't know how much power a system such as this will generate in a month.
- As Ed said, that .2 kW is an instantaneous rating in bright sun. The way to do this right is to consult the maps here rredc.nrel /solar/old_data/nsr... to find the number of equivalent sun-hours your location gets per day. Select, Average, Annual, Flat plate tilted south at latitude. A map will come up. For northern California, it shows 5 equivalent sun hours per day, for example. If the system is .2 kW, then .2 x 5 = 6.0 kWh of energy the system will generate per day, on average. That takes into account cloudy days, short winter days, long summer days, everything. The 2.4 kW system would give double that, obviously. But that's an example, based on a specific location. Phoenix would do better, Seattle would do worse.
- Q: What about sources for straight forward solar powered products? Excluding toys, garden frogs and outdoorpath lights I have found few useful items for the home. What I have found are solar panels for under $00 each, inverters, rechargeable indoor lights and a few camping/RV products that are interesting. It seems to me that these could help me start to wean the family off the power company. I can't afford to go cold turkey and cover my roof with solar panels and I don't think the HOA would allow me to even if I could. Is anyone using solar on a small scale?
- Homemade okorder
- Q: Do they really save energy? Cut or almost eliminate your electricity bill, if so, how much?Do they have a reserve unit to save electricity that I don't use, to use when the sun is not out?Can it produce enough electricity to cool a house and keep lights and appliances runningLastly, how much are the panels are running for.
- Instead of paying for electricity, for the past three years I've actually ended up with a cheque from the power company believe it or not! :) I got some extremely cheap solar panels from this guide I read, I'll try and find a link for you.. that's one less thing to worry about during the recession I suppose! Haha The guide I used was here: tiny /solar789 my mum was the one who said I should take a look at it, since she's been using the techniques for donkey's years.
- 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 surrounding areas, an office building can generate enough electricity to meet its energy needs. Additionally, by integrating battery storage systems, excess solar energy can be stored and used during non-sunlight hours, ensuring continuous power supply.
- Q: i want to join multiple solar panels into a bank so i only need one length of wire, i am going to use diodes to stop them sending power back into the one before it. is this ok or do i need something else?
- Maybe. It depends on the panels involved, and what their output is. Not all panels are able to be daisy chained.
- Q: Would it be possible to use a lens or a mirror to focus light onto a solar panel in order to make in more efficient? And is something like this already being used? It was just a thought and I haven't spent much time on it, but I figured I'd ask.
- yes it is being done. i've seen adds for such a system. on the other hand, if you had a 5 sq in Lens focused on a small cell, and a 5 sq in cell, they'd be about the same. in fact, the cell might be a bit better because (A) there wouldn't be any loss in the Lens, and (B) it might be that the solar cell would use some frequencies to which the Lens was opaque. in addition, the cost of solar cells is dropping, making the cost of the mirrors or lenses uneconomical by comparison.
- Q: I'm thinking of getting a solar panel for my house to help cut back on power use (I live in New Mexico). What sort of appliances can I run on a watt solar panel? Is it worth it to get a single watt panel or is it more efficient to get a multi-watt panel?
- watt is a very small amount of electricity. The typical household uses several million watt hours per year. watt would be enough to trickle charge a battery to run an LED nightlight. I believe the little self contained walk lights that I have put out have a 0.35 watt Ni-Cad battery. That could be recharged by a watt solar panel.
- Q: Need solar panel info with dimensions and also the total cost of the whole equipment for setting up of the required solar panels for a 2-story home
- There are many, upon many variations of equipment needed for a complete solar home. I would call several contractors in your area that deals with it and get estimates. You have to look at what your wattage diet is at your home. How many watts are you using for your AC and heat. Which can vary by age, efficiency, insulation of home, etc. Look at your electric bill for a normal summer month and a normal winter month, then estimate your heating and cooling (Sometimes can be as much as 70% of the bill). You will see on your bill your toal kilowatt hours. ( Kilowat = 000 Watts) Solar systems can start as low as $2.00/watt, but can rapidly approach $20.00/watt depending on the difficulty of application etc.... Here is the great thing, in many areas of the country there may be rebates from the county or state. And what you don't use can be fed back into the grid, and you get paid for it. But as always - Call a quailified contractor and get the right system for your home.
- Q: How do solar panels affect the aesthetics of a roof?
- Solar panels can have both positive and negative effects on the aesthetics of a roof. On one hand, they can enhance the visual appeal by giving the roof a modern and eco-friendly look. On the other hand, some people may find the appearance of solar panels less attractive or disruptive to the overall design of their roof. Ultimately, the impact on aesthetics largely depends on personal preferences and the design integration of the solar panels into the roof.
- Q: Do solar panels increase property value?
- Yes, solar panels can increase property value. Studies have shown that homes with solar panels tend to sell for higher prices compared to similar homes without them. The energy cost savings, environmental benefits, and potential tax incentives associated with solar panels make them an attractive feature for potential buyers, ultimately boosting the property's value.
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Harbor Freight Portable Solar Panels - Solar Panel Solar Module PV Solar Grade 290W
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 watt
- Supply Capability:
- 10000000 watt/month
OKorder Service Pledge
OKorder Financial Service
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