3kW Solar System Price in Pakistan

What a 3kW solar system can run

A 3kW solar system is the first size that can run an air conditioner. In daytime sun our 3.45kW packages run one 1.5 ton inverter AC, a fridge, 4 fans, 8 LED bulbs, a TV and a 0.5 HP water pump. Start the pump when the AC is not starting up. Six panels make about 13 to 15 units (kWh) on a normal sunny day in Pakistan, or roughly 400 to 450 units a month as a yearly average.

This size suits a 5 marla house or a small family with one AC. A 1.5 ton inverter AC draws about 1 to 1.8kW while cooling, so the AC uses a large share of the solar. The solar system for AC guide (Solar System for AC: How Many Panels for a 1.5 Ton AC?) explains how hours of AC use change the size you need.

3kW lithium vs 3kW tubular package

Both packages have 3.45kW of panels and are off-grid hybrid systems.

• Lithium (3.45kW Solar System with 3.5kWh Lithium Battery (Single Phase)): Growatt SPF 3500 ES (3.5kW, 48V) with a 3.5kWh Pylontech US3000C. About 90% of the battery is usable. Expect about 5 hours at a 500W night load, or about 2 to 2.5 hours with the AC alone.
• Tubular (3.45kW Solar System with 2 Tubular Batteries (Single Phase)): Growatt SPF 3000TL LVM (3kW, 24V) with two AGS SP-200 batteries (24V, about 3.2kWh). Only about half should be used each night. Expect about 2.5 hours at 500W, or about 1 to 1.5 hours with the AC alone.

The tubular version costs less upfront but needs distilled water top-ups and a ventilated place. Its batteries usually need replacing sooner. The lithium version is maintenance-free, lighter and lasts many more cycles.

3kW solar system price in Pakistan: what affects it

The 3kW solar system price includes the six panels, the inverter and the battery. The battery type makes the biggest difference between the two versions, so compare the live price on each package card.

Neither 3.45kW package exports to the grid. They use grid power when solar and battery are not enough, but they do not send units back, so they are not used for net billing. With the lower buyback rates under NEPRA's net billing rules, most homes of this size gain more by using their solar directly.

Is 3kW the right size?

Choose 3kW if you have one AC, a fridge and normal fans and lights, and your bill is around 200 to 400 units a month. If you have two ACs, or you want the AC to run longer into the evening, the 5kW solar system packages (5kW Solar System) give more room.

Check your roof too. Six panels need roughly 16 square metres plus walking space. The how many solar panels guide (How Many Solar Panels Do You Need?) helps you plan.