PV inverter is a key device that converts direct current (DC) generated by solar photovoltaic (PV) panels into alternating current (AC). It plays a bridging role in a PV power generation system, and its performance directly affects power generation efficiency, system stability, and safety. When purchasing a PV inverter, the following points should be considered:

1. Rated Output Power

The inverter should match the total power of the PV system, with a 10%-15% margin to accommodate temporary loads or system expansion. For example, an 11kW-12kW inverter is recommended for a 10kW system.

2. Conversion Efficiency

High-efficiency inverters reduce energy loss and increase power generation. Currently, the efficiencies of mainstream products are as follows:

Centralized: ≥98%

String: ≥98.5%

Micro: ≥96%

3. Number of MPPTs and Voltage Range

Number of MPPTs: The more MPPTs, the better the adaptability to strings (e.g., 10 MPPTs can connect 10 strings).

Voltage Range: A wide voltage range (e.g., 200V-1000V) can accommodate more module series configurations, improving system flexibility.

4. Protection Rating and Working Environment

Protection Rating: IP65 (dustproof and waterproof), suitable for outdoor installation.

Temperature Range: Must be able to withstand extreme environments (e.g., -40℃ to +60℃).

Qingdao UNC Technology Co., Ltd wide range of products covers in many fields, including household hybrid inverters, PV inverters, and energy storage PCS. For more information about PV inverter, please contact us.

Address：No. 115, Jifu Road, Chengyang District, Qingdao City, Shandong Province

Email：unc-service@unc-energy.com

Website：www.uniconvtor.com