There are three main types of solar panels: monocrystalline, polycrystalline, and amorphous. Monocrytaline panels are the most efficient at converting available sunlight into electricity, but are also the most expensive. Polycrystalline panels cost less than monocrystalline, but are not as efficient. Amorphous panels are the least expensive, but they are also the least efficient.
Monocrystalline Solar Panels
Monocrystalline solar panels are made from big crystals of silicon. Monocrystalline panels perform in conditions with less than optimal light. When working with very limited roof space, a monocrystalline system may be your best choice.
- Monocrystalline Panels
Polycrystalline Solar Panels
Polycrystalline panels are easily recognized by their distinctive shattered-glass appearance. Instead of having one large peice of silicon, polycrystalline panels are made up of many smaller crystals.
- Polycrystalline Panels
Amorphous Solar Panels
Amorphous panels are made of a thin film of molten silicon and are ideal for use on cars and boats. Amorphous panels will degrade faster than other systems, losing about about one percent efficiency each year. For comparison, crystalline panels loose only half a percent every year.
Even though solar panels degrade over time, they still have a remarkable life span. A good solar power system will last you over fifty years–long enough to pay back what you spend on the initial investment.
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Are the panels easy to break with a stone or a rock. Do the panels lay on the roof
or are they laying on a bracket.