Dark Solar Panels 255W Poly Solar Module
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We are in the position to supply you solar panels（20w~310w).
*Featured products in our warehouses and factory:
Poly 245w,250w (60 cells) Mono 260w -Black (60 cells)
*800MW annual production capacity with full-automatic production line
*All our solar panels are insured by CHUBB
*Bankable in Italy(Unicredit) and Australia(HSBC)
*Certificates: TUV, PV CYCLE, MCS, CE, JPEC, UL, ISO, ICIM and CEC
*Warehouses in Holland and Australia
- Q: How can I determine the size of solar panel system I need?
- To determine the size of the solar panel system you need, you should consider your average electricity consumption, your location's solar potential, and the available roof or ground space for installation. Start by analyzing your energy bills to understand your average monthly and annual electricity usage. Then, consider the solar irradiation levels in your area, which can be found through online tools or consulting a solar professional. Additionally, assess the available area for installation, as larger systems require more space. Finally, consult with a solar installer or use online calculators to determine the appropriate system size that can meet your energy needs.
- Q: I know that one LED can't power a solar panel. I have found 40 kmcd LED's on OKorder. I know that several of them (28 totale each one with a 470 ohm resistor all at 2 VDC) can show a reflection on a wall in daylight 60 feet away..
- The 40 kmcd rating is a measure of luminous intensity (how bright it looks), not a measure of output power of the visible light. We can estimate the performance of your proposed system as follows: The LEDs on OKorder each are rated about 20mA maximum at about 3.2V, or 64mW (milliwatts). If you use 470 ohm resistors connected to 2VDC, the current that will flow, per LED, will be about: (2V-3.2V)/470ohm = 0.0872A = 8.72mA The power taken from the 2VDC power source will be: P2v = 2V x 8.72mA = 224.6mW (per LED) The power input to each LED will be about: Pled = 3.2V x 8.72mA = 59.9mW (per LED) The LED has a luminous efficiency that can range from about 4.2% to 22%. This efficiency is the ratio of the amount of visible light output (in watts) divided by the input power (in watts). The OKorder listing doesn't identify the output power level (either in watts or in lumens), so let's assume a 0% efficiency. The LED output power will be about: Pout = 59.9mW x 0% = 5.99mW (per LED) A solar panel converts visible light to electrical energy with an efficiency that ranges say about 6% to 8%. Suppose the solar panel efficiency is 2%. Then the electrical power output by the panel will be about : Pe = 5.99mW x 2% = 0.72mW (per LED) If you shine 00 LEDs on the panel, the output electrical power will be 00 times that amount: Pe00 = 0.72mW/LED x 00 LED = 72mW <===ANSWER The power taken from your 2V source will be about: P2V00 = 224.6mW/LED x 00 LED = 22460mW = 22.46W The system efficiency will be about: Eff = solar output / battery input = Pe00 / P2V00 = 72mW / 22460mW x 00% = 0.32% SUMMARY: If you shine 00 of the LEDs on the panel, you will capture back about 0.32% of the energy expended, or regain about 72mW.
- Q: What is the average size of a residential solar panel system?
- The average size of a residential solar panel system is typically around 5 kilowatts (kW), which is equivalent to approximately 20 solar panels. However, the size may vary depending on factors such as energy consumption, roof space, and individual preferences.
- Q: Can solar panels be used for powering electric fences?
- Yes, solar panels can be used for powering electric fences. Solar panels can harness sunlight and convert it into electricity, which can be stored in batteries and used to power various devices, including electric fences. This allows for a reliable and environmentally-friendly source of power for electric fences in remote locations where access to the electrical grid may be limited or not available.
- Q: i know that a solar panel of square meter generate 000 watts on a clear and sunny day, but i need to know the time rate. is it 000 watts per day or per hour? Thanks.
- watts per hour or day is a meaningless concept. Watts are joules per second, where joules are a unit of energy. Watts are the RATE of energy being used or generated. .
- Q: Any feedback on solar panels?
- Solar panels are very good. Although they may start off expensive, they will soon make up for the money spent. But they will only be useful when facing south and in sunny-ish countries. :)
- Q: How do solar panels affect the insurance premiums of a home?
- Solar panels can potentially have a positive impact on home insurance premiums. While the initial installation cost of solar panels may increase the value of a home, they can also lower the risk of fire damage and reduce reliance on the grid. As a result, some insurance companies offer discounts or special policies for homes with solar panels, which may lead to lower insurance premiums in the long run. However, it is important to consult with individual insurance providers as policies can vary.
- Q: Can solar panels be installed on agricultural or farming operations?
- Yes, solar panels can be installed on agricultural or farming operations. In fact, they are increasingly being adopted in these settings to generate clean and renewable energy. Solar panels can be installed on rooftops of barns, sheds, or other structures, as well as on open fields or unused land. By harnessing solar energy, farmers can reduce their electricity costs, lower their carbon footprint, and contribute to a more sustainable farming practice. Additionally, solar panels can provide shading for livestock or crops, minimizing heat stress and improving overall farm productivity.
- Q: Can solar panels be damaged by hail or other flying debris?
- Yes, solar panels can be damaged by hail or other flying debris. While they are designed to withstand certain weather conditions, such as wind and rain, hailstorms or large debris impacts can cause physical damage to the panels and reduce their efficiency. It is important to install solar panels in a way that minimizes their exposure to potential hazards and to have insurance coverage for such incidents.
- Q: Can solar panels be installed on universities or educational campuses?
- Yes, solar panels can be installed on universities or educational campuses. In fact, many educational institutions around the world have already embraced solar energy as a sustainable and renewable source of power. Installing solar panels on universities and educational campuses not only helps reduce carbon emissions and dependence on fossil fuels but also provides valuable hands-on learning opportunities for students studying renewable energy and sustainability. Additionally, solar panels can help universities save on energy costs in the long run, allowing them to allocate more resources to other educational initiatives.
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Dark Solar Panels 255W Poly Solar Module
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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