Solar panel

• A solar panel — also called a photovoltaic (PV) module — is made of many solar cells (usually crystalline-silicon or thin-film)

Specifications

• <p> Pmax (or Wp / Watt-peak)</p><p> The maximum DC power the panel can produce under Standard Test Conditions (STC: 1000 W/m² solar irradiance, 25 °C cell temp, standard spectrum) — basically the panel’s “rated output.” &nbsp;</p><p> Panel Efficiency (%)</p><p> How effectively the panel converts sunlight into electricity. Higher efficiency → more power for less surface area (useful when roof/space is limited). Typical modern solar panels: ~ 15% to ~ 23%. &nbsp;</p><p> Vmp (Voltage at Max Power)</p><p> The DC voltage output when the panel is producing its max power (Pmax). Important for matching with inverters or charge controllers — ensures the system works efficiently. &nbsp;</p><p> Imp (Current at Max Power)</p><p> The DC current (amps) at the max power point. Used together with Vmp to determine actual output (Power = V × I). &nbsp;</p><p> Voc (Open-Circuit Voltage)</p><p> The voltage across the panel when no load is connected — maximum possible voltage. Useful for safety, designing string voltages (series connection) and ensuring inverter/ charge controller specs aren’t exceeded. &nbsp;</p><p> Isc (Short-Circuit Current)</p><p> The current when the panel’s output is shorted (terminals connected), basically the maximum possible current. Helps size cables, fuses, and protection devices. &nbsp;</p><p> Temperature Coefficient</p><p> How much the panel’s power (and/or voltage/current) drops when the temperature rises above standard test conditions. Important in hot climates (like Nigeria) because performance degrades with heat. &nbsp;</p><p> Operating Temperature Range and Durability</p><p> Specifies the environmental range (e.g. –40 °C to +85 °C), resistance to weather, moisture, UV, etc. Ensures panel lasts long and withstands local climate conditions. &nbsp;</p><p> </p>