- Crystalline solar panels - As the name suggests these types of panels are made from crystalline silicon. They can be either monocrystalline or poly- or multi-crystalline. As a rule of thumb mono crystalline versions are more efficient (about 18-22%) but more expensive than their alternatives (tend to be 15-18% efficient) but advancements are closing the gap between them over time.
- Thin-Film solar panels - These types of panels consist of a series of films that absorb light in different parts of the EM spectrum. They tend to be made from amorphous silicon (aSi), cadmium telluride (CdTe), cadmium sulfide (CdS), and copper indium (gallium) diselenide. This type of panel is ideal for applications as flexible films over existing surfaces or for integration within building materials like roofing tiles.
These kinds of power plant tend to have the following basic components:-
- Solar panels that convert sunlight into useful electricity. They tend to generate DC current with voltages up to 1500 v;
- These plants need inverter to transform the DC into AC
- They usually have some form of a monitoring system to control and manage the plant and;
- They are directly connected to an external power grid of some kind.