• Harbor Freight Portable Solar Panels - Solar Panel Solar Module PV Solar Grade 290W System 1
  • Harbor Freight Portable Solar Panels - Solar Panel Solar Module PV Solar Grade 290W System 2
  • Harbor Freight Portable Solar Panels - Solar Panel Solar Module PV Solar Grade 290W System 3
Harbor Freight Portable Solar Panels - Solar Panel Solar Module PV Solar Grade 290W

Harbor Freight Portable Solar Panels - Solar Panel Solar Module PV Solar Grade 290W

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
1 watt
Supply Capability:
10000000 watt/month

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Specification

Material:
Polycrystalline Silicon
Max. Power(W):
290
Number of Cells(pieces):
60

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.

Solar Panel Solar Module PV Solar With A Grade 290W


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: Can solar panels be used in areas with high levels of sand or dust deposition?
Yes, solar panels can be used in areas with high levels of sand or dust deposition. However, the accumulation of sand or dust on the surface of solar panels can reduce their efficiency. Regular cleaning and maintenance of the panels are necessary to ensure optimal performance in such environments. Additionally, the tilt and positioning of the panels can be adjusted to minimize the impact of sand or dust deposition.
Q: Can solar panels be used in areas with high levels of volcanic activity?
Yes, solar panels can be used in areas with high levels of volcanic activity. While volcanic activity may pose certain challenges such as ash emissions or occasional cloud cover, solar panels can still generate electricity during periods of low activity. Additionally, solar panels can be designed and installed to withstand harsh environmental conditions, including volcanic ash deposition, ensuring their long-term functionality.
Q: i don't know very much about it, but can you somehow take off the little solar panels off of the outdoor light things and make it so you can hook an outlet up to it and plug in to it like a phone charger for electricity.
Little solar panels on lights are very low power. The battery in one such may be 0.5 Amp-hours and .2 V ; it may be different but it should be marked on the panel/battery/manual. An outlet in your house is designed to run on 20 V (typically in N. Am.) and they run on alternating current (AC) whereas the panel generates direct current (DC). (If you don't know the difference, do not worry to much but just understand that they are not directly compatible.) You therefore need an inverter to change DC to AC (and lose some although inverters are now very efficient). But the amount of power generated by those panels is still very small. That is why solar lights are low power (just a few watts in most cases). To make things even more irritating, phone chargers do not work off 20 V AC as you are charging the battery and need a low voltage DC -- which is what the solar panel is giving you. It is almost certain that the voltage from the panel will be less than the voltage required for the phone. The charger is mostly cable but there is a black box incorporated and it should say what the voltage and current output are (the input will be 20V). So you should be able to overcome this not by hooking up the panel to a 20V outlet and then plugging the charger in but by hooking up the panel to the phone directly if you can get enough voltage out of the solar panel (or hook up several) and if you fashion a connection device. They already make them -- solar battery chargers and I am sure you can enter that into a search engine and find loads. Typically the panel alone is much more than a solar light -- which shows the relative power requirements.
Q: The ancients used skylights for light in lieu of electricity. Light was used for drying, even cooking foods and drying clothes. Solar clocks/sun dials were once popular but now we have battery operated clocks. Where have we tapped into any of these resources since the outdated solar clothes drier nicknamed the 'clothes line'?
As your question notes, there are other ways to derive power from solar energy other than just using solar panels. One such way that has grown rapidly in recent years, is solar thermal generation. Solar-thermal uses mirrors to collect sunlight and concentrate it at point to generate intense heat. This heat is used -- just as in traditional fossil fuel plants -- to boil a fluid, thereby creating steam pressure, which drives a turbine that generates electricity. Solar thermal has some advantages over traditional solar panels. It's collectors (i.e. mirrors) are cheaper to manufacture than solar panels and last longer.
Q: Can solar panels withstand extreme weather conditions?
Yes, solar panels are designed to withstand extreme weather conditions. They are built to be durable and can withstand hail, heavy rains, high winds, and even snow loads. Additionally, they are made with materials that can resist corrosion and damage from prolonged exposure to sunlight.
Q: i am working on a project which requires small solar panels. i am looking for ones about 3X4. is there any way i could get these? and where?
I bought mine from OKorder. They were from a top seller and arrived in better condition than I expected. They are 3 X 6 and have an output of .5 volts .7 watts. You will need other items as well blocking diodes, charge controllers as well as tabbing ribbon and buss wire. Learn about other components you may need at the website below. There is also an OKorder link at the bottom of the page.
Q: Can solar panels be used to power a skyscraper?
Yes, solar panels can be used to power a skyscraper. Advanced solar technologies and efficient panel setups can generate significant amounts of electricity, making it feasible to meet some or all of a skyscraper's power needs. However, considering the high energy demands of skyscrapers, a combination of solar power with other renewable sources or grid connection is often employed to ensure a reliable and consistent power supply.
Q: Can solar panels be installed on a university or college campus?
Yes, solar panels can absolutely be installed on a university or college campus. In fact, many educational institutions have already embraced solar energy and installed solar panels on their campuses. These panels can be placed on rooftops, parking structures, or open spaces to generate clean and renewable electricity. Installing solar panels not only helps reduce the environmental impact of the campus but also provides educational opportunities for students to learn about sustainable energy practices.
Q: Can I use a regulator from a car to regulate the voltage from a solar panel to a battery?
solar panels will naturally produce a certain DC voltage which is what your battery needs - the current will vary based on the sun light. You need probably 4V to have some over voltage. So based on your specs look at having at least 4 V but not too much over that (tells you how many panels you need in series) I would have blocking diodes (probably the solar cell has them built in) to insure the battery does not discharge thru the panel.
Q: How many solar panels do you need on your house to power your heater in winter?
You can get over 5 times the efficiency at lower cost by directly absorbing the heat in a solar water-heating collector. Use the electrical panels for making electricity for stuff that needs it.

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