Solar

Monocrystalline - superior energy perfor-mance and efficiency when it is essential to maximize power per square metre or if you are looking for a black module to integrate into an architectural look.

Simple explanation - Photons in sunlight hit the solar panel and are absorbed by semiconducting materials, such as silicon.
Electrons (negatively charged) are knocked loose from their atoms, allowing them to flow through the material to produce electricity. Due to the special composition of solar cells, the electrons are only allowed to move in a single direction. The complementary positive charges that are also created (like bubbles) are called holes and flow in the direction opposite of the electrons in a silicon solar panel. An array of solar cells converts solar energy into a usable amount of direct current (DC) electricity.

Energy conversion efficiency - A solar cell's energy conversion efficiency, is the percentage of power converted (from absorbed light to electrical energy) and collected, when a solar cell is connected to an electrical circuit. This term is calculated using the ratio of the maximum power point, Pm, divided by the input light irradiance (E, in W/m2) under standard test conditions (STC) and the surface area of the solar cell (Ac in m2).

By far, the most prevalent bulk material for solar cells is crystalline silicon, also known as "solar grade silicon". Bulk silicon is separated into multiple categories according to crystallinity and crystal size in the resulting ingot, ribbon, or wafer.

Monocrystalline silicon: often made using the Czochralski process. Single-crystal wafer cells tend to be expensive, and because they are cut from cylindrical ingots, do not completely cover a square solar cell module without a substantial waste of refined silicon. Hence most monocrystalline panels have uncovered gaps at the four corners of the cells.

Single crystalline are more expensive to manufacture and typically have a slightly higher efficiency than do conventional polycrystalline cells resulting in smaller individual cells and thus typically a slightly smaller module.

Typically, a monocrystalline module will begin producing electricity at about 5% of maximum sun energy while a polycrystalline module will start producing power at about 10% maximum sun energy. This means that the monocrystalline module will produce energy for more hours per day and in lower light conditions. Additionally, the monocrystalline module will perform better and produce more energy in hot conditions.