Maximum Power Point

The Maximum Power Point (MPP) refers to the optimal operating point of a solar cell or a solar module in photovoltaics, at which the electrical power that can be obtained from the cell is maximized.

Explanation:

The power of a solar cell is the product of voltage (U) and current (I). However, this power is not constant but depends on various factors, such as:

• Illumination intensity: The stronger the sunlight, the higher the power output.
• Temperature: As temperature increases, the power output usually decreases.
• Cell characteristics: Each solar cell has an individual characteristic curve that describes its power output behavior.

The MPP is the point on the characteristic curve where the product of voltage and current reaches its maximum value.

Why is the MPP important?

• Maximum energy harvest: Operating at the MPP ensures that the maximum possible electrical energy is obtained from the solar cell.
• Efficiency increase: Efficient use of solar energy is a key factor for the economic viability of a solar system.

Maximum Power Point Tracking (MPPT):

To find the MPP and continuously operate the solar cell at this point, a method called Maximum Power Point Tracking (MPPT) is used. MPPT algorithms adjust the electrical load of the solar cell to ensure that the MPP is accurately met.

Relevant keywords: Photovoltaics, Solar Cell, Solar Module, Power, Voltage, Maximum Power Point Tracking (MPPT), Efficiency, Renewable Energies, Solar Energy