Capacity
The output of solar cells can be indicated by both Watts and kWs. Generally speaking, as the Wattage rating goes up on a solar cell, the greater the amount of electricity produced by that solar cell. The selection of the right size of system for your needs should take into consideration the amount of space you have on your roof and the amount of electricity that you need to produce. The amount of electricity produced by solar panels will vary based on geographic location, amount of sunlight/shade received by the panel, temperature range that exists in your area, and prevailing weather conditions. Power doesn't promise anything in the real world. To estimate electricity that will be produced, you will have to multiply the capacity of a solar panel system by a performance ratio (PR), which accounts for these factors.
You also will have to consider your energy consumption now and in the future. Selecting an effective solar panel system will be based on adequate energy generation vs consumption. Depending on your Energy consumption may increase in the future, you may be able to project and potentially decide to select a higher capacity solar panel system.
Type
Solar panels can be divided into three main categories: Monocrystalline, polycrystalline and thin film solar panels. Each type of solar panel has pros and cons associated with them. The advantages associated with monocrystalline solar panels primarily stem from their high efficiency combined with their long life expectancy due to their utilization of superior quality silicon material. If you want the highest efficiency level and aren't concerned about paying a premium price, then monocrystalline solar panels may be the best choice for you. If you do not have an unlimited budget then polycrystalline solar panels may be the best solution for you as they are generally less expensive than monocrystalline solar panels and consist of many smaller pieces of silicon compared to monocrystalline. Finally, thin film solar panels utilize cadmium telluride, copper indium gallium selenide or amorphous silicon in their construction. Since they are far more flexible and lightweight than other these other options, they are great for portable solar panel systems. Nevertheless, thin film solar panels are the least efficient of other options. In fact, they require a greater surface area than monocrystalline and multicrystalline solar panels to generate the same power retun.
The Workhorse of the Market: Crystalline Silicon Cells
With a significant majority of the market share, crystalline silicon cells are the backbone of the solar industry. They are classified into two main categories:
Monocrystalline Silicon:
These cells are identified by their uniform dark color and rounded corners. They are formed from one pure crystal structure, making them the most efficient type among the commercially available panels produced in mass. They are the best at converting sunlight to electricity in a situation where one does not have adequate roof space or area to install a solar system. This offers a higher power density and the typical longevity of solar panels.
Polycrystalline Silicon:
They have a distinctive blue coloring and appear to have a mosaic piece appearance due to being formed from small pieces of melted silicon crystals. Although they are not as efficient as momocrystalline solar cells they have long been a cheaper solution to providing access to a larger number of people for solar energy.
Selecting the Appropriate Solution for Each Task
Cell type selection is increasingly more strategic. A home-owner with very limited roof space may prioritize monocrystalline panels based on high capacity per square meter. A homeowner with an industrial farm may prefer the cost of thin-film technology for performance in a hot climate. An even newer entrant is perovskite, which is poised to create yet undiscovered markets.
