SolarEstimate

Solar Estimate Karachi

Free solar calculator for Karachi. Karachi households face some of the highest electricity bills in Pakistan. With K-Electric's tiered residential tariff crossing PKR 50–65 per unit in upper slabs, a rooftop solar system pays for itself faster here than almost anywhere else in the country.

Start the calculator See 5kW system price

Why solar makes sense in Karachi right now

Karachi's average daily peak sun is ~5.4 hours and the city's grid power often spikes during summer load. A net-metered solar system uses excess generation to offset costly evening units, accelerating payback.

Coastal humidity and high summer AC load make peak Karachi bills brutal — a 5–10kW system typically wipes out the bulk of a residential bill within the first month.

Karachi solar pricing in 2025

Installed solar costs in Karachi are roughly PKR 175,000 per kW for a complete on-grid system with net metering. That translates to:

  • 5 kW system — approximately PKR 875,000 – 1,050,000, fully installed. Suits bills around PKR 28,000.
  • 10 kW system — approximately PKR 1,750,000 – 2,100,000. Suits larger homes with 3–4 ACs.
  • Lithium battery — add roughly PKR 65,000–80,000 per kWh of usable storage if you want backup against load-shedding.

See our dedicated 5kW solar system price Pakistan and 10kW solar system price Pakistan guides for full breakdowns.

K-Electric (KE) tariff and net metering

K-Electric (KE)'s residential tariff is slab-based: protected consumers under 200 units pay PKR 7–15/unit, mid-tier (200–500 units) pay PKR 25–35/unit, and upper-tier consumers (500+ units) pay PKR 52+/unit once fuel adjustments and surcharges are included. K-Electric customers above 700 units/month see the steepest savings from solar because solar offsets the most expensive slab first.

Net metering through K-Electric follows NEPRA's national framework — surplus export credited at ~PKR 10/unit, 25 kW residential cap, three-phase upgrade required above 5 kW for most customers. The net metering calculator models the full bill-vs-savings trade-off.

How to estimate your Karachi solar system

Run the calculator above. Upload your latest K-Electric bill — the parser pulls units consumed and bill amount from the PDF, or you can type them in manually. Pick "Karachi" as your city so the local sun-hour profile is applied. You'll get a complete sized system, panel count, battery sizing if you want backup, and a 25-year savings projection — all in under 60 seconds.

Other Pakistani cities

We've built city-specific estimate pages for every major DISCO:

Solar in Karachi — FAQs

How much does a solar system cost in Karachi?
In Karachi, residential solar systems install at roughly PKR 175,000 per kW in 2025. A 5kW system covering a typical K-Electric household bill of PKR 28,000 comes in around PKR 850,000–1,050,000 fully installed, including net metering paperwork.
How does K-Electric net metering work?
K-Electric (KE) runs net metering under NEPRA's national framework. Residential connections up to 25 kW qualify; surplus generation is credited at the current notified buyback rate (~PKR 10/unit). Application timelines in Karachi are typically 4–8 weeks.
What's the average solar payback period in Karachi?
With Karachi's effective tariff around PKR 52/unit and ~5.4 peak sun hours per day, the average residential payback in Karachi is 2.5–3.5 years. Higher-tier consumers see payback inside 2.5 years.
How accurate is the solar estimate?
The estimate is accurate within roughly ±10% for residential systems. We use NEPRA-published tariff slabs, average per-city peak sun hours, and current installed system costs from Pakistan's solar market. For a binding quote you still need an on-site survey, but the calculator is designed to be within range of real installer proposals.
What is net metering in Pakistan and how does it affect savings?
Net metering lets you export surplus solar generation back to your DISCO and receive credit at NEPRA's notified buyback rate (currently around PKR 10/unit for new connections). The calculator factors this in when sizing your system — oversizing beyond your usage gives diminishing returns under the new tariff.
What size solar system do I need for my home in Pakistan?
Most residential homes in Pakistan need a 5kW to 10kW system. A 5kW system covers bills around PKR 25,000–40,000 and 1–2 ACs. A 10kW system covers bills of PKR 50,000+ and 3–4 ACs. The exact size depends on your monthly units, roof orientation, and whether you want a battery for load-shedding.
What is net metering in Pakistan?
Net metering is a NEPRA-regulated programme that lets you connect a solar system (1–25 kW residential, up to 1 MW commercial) to the grid and receive credit for surplus generation. Every DISCO — K-Electric, LESCO, IESCO, MEPCO, FESCO, HESCO, QESCO, GEPCO, SEPCO, PESCO — runs the programme under the same NEPRA framework.
What is the net metering tariff in Pakistan in 2025?
Under NEPRA's latest notification, surplus solar exported to the grid is credited at approximately PKR 10/unit. This is significantly lower than the previous PKR 21–27/unit buyback rate, which makes correctly sizing your system to your own consumption more important than oversizing for export.
How are solar savings calculated?
Solar savings = (monthly units offset × your tariff per unit) + (surplus exported × net metering buyback rate). The calculator caps savings at your actual bill — solar can't pay you negative. Lifetime savings also account for annual tariff escalation (typically 6%) and panel degradation (~0.6%/year).