Key Considerations for PV Modules

a. Efficiency:

• Conversion Efficiency: Higher efficiency modules convert more sunlight into electricity, which is important for maximizing energy production in limited space.

b. Power Output:

• Wattage Rating: PV modules are rated based on their power output (e.g., 300W, 400W). Higher wattage panels produce more electricity but may come at a higher cost.

c. Durability and Lifespan:

• Materials and Construction: Modules should be durable and weather-resistant. The average lifespan of PV modules is typically 25 to 30 years.
• Warranty: Manufacturers often provide warranties ranging from 10 to 25 years, covering performance and material defects.

d. Temperature Coefficient:

• Performance in Heat: PV modules have a temperature coefficient that indicates how performance decreases with higher temperatures. Modules with a lower temperature coefficient perform better in hot climates.

e. Installation and Mounting:

• Orientation and Tilt: Proper installation orientation and tilt angle maximize sunlight exposure and energy production.
• Mounting Systems: Choice of mounting systems (roof-mounted, ground-mounted, or tracking systems) affects the efficiency and stability of the installation.

f. Certifications and Standards:

• Compliance: Ensure that PV modules comply with international standards such as IEC 61215 and IEC 61730 for safety and performance.