Solar Panels
When you are choosing solar panels for your system, there are a number of factors that will go into your decision. These factors are similar to those of other buying decisions you make, and they also are inter-related:
- cost
- durability
- size
- type
Cost
The cost will be determined in part by size and durability of solar panels you purchase.
Size
The size of the panel generally determines the wattage it will put out at maximum. The wattage is also determined by the kind of solar cells used, whether they are single crystal, polycrystalline or thin film. If you'd like, you can learn more about types of solar cells. A 50 watt panel will be about two square feet, while a 190 watt panel will be about eight.
Durability
Again, this has a lot to do with the materials. As you would read on our solar cells page, different types of solar panels have different durability. Frames also make a difference in durability of your solar panels. Today, most PV panels are framed in aluminum, which is sturdy and light.
Type
The type of solar module you choose is based on what you will be using it for. For homes and other stationary uses, the type of module will be different than the type that is best suited for portable uses such as boating or camping.
You might also want to look at solar shingles, profiled on our page on building integrated photovoltaics.
