Solar and wind power systems have become common renewable energy solutions, but many customers don't know how to choose the right inverter capacity for their electrical loads. 

Today, our professional sales team at Nanjing Oulu Electric will provide a simple explanation.

Inverters are generally divided into two main types: pure sine wave and modified sine wave. 

Pure sine wave inverters can be further categorized into low-frequency and high-frequency types. 

Their function is to store the electricity generated by hybrid wind-solar systems into batteries through a controller, then convert the DC power from the batteries into 220V

AC power for household use.

Inverter selection depends on the load characteristics:

- For resistive loads** (electric blankets, water dispensers, light bulbs, electric heaters, rice cookers, etc.), simply match the inverter's power to the load's actual rating.  

- For inductive loads** (refrigerators, washing machines, fans, water pumps, electric drills, air conditioners, etc.), choose an inverter with 3-5 times the load's rated power.

Nanjing Oulu Electric's independently developed pure sine wave inverters feature the following advantages:

1. SPWM Technology – Microprocessor-controlled for pure sine wave output with clean waveform.  

2. Dynamic Current Loop Control** – Ensures reliable inverter operation.  

3. Strong Load Adaptability – Handles capacitive, inductive, and mixed loads efficiently.  

4. High Overload & Impact Resistance – Robust performance under varying conditions.  

5. Comprehensive Protection – Includes input/output over/under-voltage, over-temperature, and overload protection.  

6. LED Display – Shows battery voltage, output current, power, and other key parameters.  

7. Stable & Reliable – One-key start, safe control, and long service life.  

**For small wind turbine inverters**, this guide helps you make an informed choice. Always opt for reputable manufacturers to ensure quality and reliable after-sales support.