HQST 100 Watts 12 Volts Polycrystalline Solar Panel Off-Grid RV and Boat Kit with 30A PWM LCD Display Charge Controller + Adaptor Cables + Mounting Brackets
Know the Company that made the panel. – While some companies are dedicated to research to produce better solar panels , others simply dedicate themselves to assembling the photovoltaic modules, before making the purchase, the ideal is to know the company that He made the panel.
What materials were used.– There are 3 types of solar cells . The Monocrystalline is the most efficient and is produced in small cells, so monocrystalline solar panels are smaller and in turn are the most expensive. Polycrystalline, is the second most efficient and is also the most common in the market, since it represents a good balance between the price and efficiency of the panel. Finally the Amorpho which is a thin film of silicon and are the least efficient.
Recommend HQST 100 Watts 12 Volts Polycrystalline Solar Panel Off-Grid RV and Boat Kit with 30A PWM LCD Display Charge Controller + Adaptor Cables + Mounting Brackets
Find out how much you usually spend in kw/h per day:
You can check your electricity bill, or consult the electric company. This will help you make your choice by calculating your consumption.
Where would you place it?
Remember that your panel should give sunlight in the most powerful hours of the day, which covers from 10 to 3 in the afternoon. When you know where you will locate it then it will also be easier for you to know the size of panels you need.
Monocrystalline or polycrystalline.
The theoretical yield of monocrystalline is slightly higher, but also its price.HQST Polycrystalline Off Grid Controller Mounting Reviews
We also recommend that you look at the solar kit incorporating all the components to perform the installation. This mainly refers to the structure, electrical and solar wiring, MC4 connectors for connecting the plates, and the protections: fuse holders and fuses. So we recommend anyone who is thinking about doing their solar installation, to advise correctly and try to know the reason for the differences between prices and returns from one store to another. What is clear is that the radiation that the sun can offer in Spain will always be very similar and miraculous kits will never work, offering very high yields with only a small number of solar panels.
The color of a solar panel is 100% personal preference. The monocrystalline cells are dark gray-bluish or sometimes almost black; the polycrystalline cells lean towards the blue color, with multiple crystals that reflect different shades of blue. The color of the cell can be selected or changed. However, you can select the colors of the aluminum frame and the back sheet.
One point that is worth mentioning is that the panels with black background work at a higher temperature, therefore lose efficiency. The loss is not significant but the operating temperature of the array will increase, especially in hot climates. If efficiency is your ultimate goal, it is recommended to use panels with a white background; however, an all-black panel is not bad when appearance matters.