1. Typical Household/Office Capability

A 3kVA system can comfortably handle the following simultaneously: 

• Lights: 10–15 LED bulbs.

• Fans: 3–5 ceiling fans.

• Appliances: 1 Standard Fridge/Freezer (inverter model preferred).

• Electronics: 1 LED TV, 1 Decoder, Wi-Fi Router.

• Work Tools: 1 Laptop and 2–3 phone chargers. 

2. Estimated Runtimes (Battery Only)

• Moderate Load (approx. 500W): (e.g., Fridge, lights, TV, fans). The battery will last roughly 6–7 hours.

• High Load (approx. 1000W): (e.g., Added blender/small microwave). The battery will last roughly 3–3.5 hours.

• Critical Load (approx. 150W): (e.g., Only lights, router, and phone charging). The battery can last 15–20 hours. 

3. What It Can Power Intermittently (Short Duration)

• Washing Machine: (Up to 1200W).

• Microwave/Toaster: (Up to 1500W).

• Small Pumping Machine: (0.5 HP, intermittent use). 

4. What It CANNOT Power (Or Should Avoid)

• Large Air Conditioners: (1.5HP+ inverter ACs might work on low, but traditional ACs will trip the 3kVA inverter).

• Electric Water Heaters/Geysers: (Typically >3000W).

• Electric Oven/Hot Plates: (Typically >2000W).