15 kW solar system price in Pakistan (November 2026)

What a 15 kW system produces

In Karachi a 15 kW system generates about 64 units a day on average, which is 1,935 units a month and 23,230 a year. That figure comes from the World Bank's Global Solar Atlas for Karachi, less 10% for dust and real-world losses. Hyderabad and Quetta produce more, Lahore and Islamabad less.

At the current residential tariff, 1,935 units bought from the grid cost about Rs 123,946 a month including surcharges and GST.

What it can run

A 15 kW system is the right size for a big house, a school, a clinic or a workshop. In daylight it can carry five or more air conditioners, pumps and workshop or kitchen equipment through the working day.

It suits sites using roughly 1,700 to 2,100 units a month.

Solar output follows the sun. It peaks around midday and is zero at night, so what the system can run depends on when you use power, not only on the monthly total. The solar load calculator works this out from your own appliances.

On-grid or hybrid

At this size nearly every site is three-phase. Daytime users such as schools and workshops consume most of the output directly, which is where the return is highest under net billing.

An on-grid system has no batteries and switches off when the grid goes down. A hybrid system adds a lithium battery, here 15.4 kWh, which keeps essential loads running through load-shedding and stores midday surplus for the evening. For the full comparison see on-grid vs hybrid vs off-grid.

What changes the price

• Panel brand. Tier-1 panels sell for Rs 40 to 45 per watt. See solar panel prices.
• Inverter class. A premium inverter adds to the total. See inverter prices.
• Battery capacity. Each extra 5.12 kWh unit adds to a hybrid system. See battery prices.
• Structure. An elevated walk-under structure costs roughly twice a standard raised one.
• The site. Long cable runs, roof repairs and electrical upgrades are quoted after a survey.

Payback

If your home uses about 1,935 units a month, with 1,935 units of solar and 40% of your use in daylight, the on-grid system saves about Rs 60,983 a month in the first year and pays for itself in roughly 1.6 years. The hybrid system takes about 2.1 years, because the battery adds cost but also lets you use more of your own solar.

Those figures assume a three-phase connection exporting surplus at about Rs 11 a unit under net billing. Your own bill and daytime use will change them. Put your numbers into the ROI calculator.