Khyber Pakhtunkhwa • PESCO • 5.4 peak sun hours

Solar Calculator for Kohat

Size a solar system for Kohat from your electricity units. The wizard is pre-set with 5.4 peak sun hours for Kohat, and the tables show what each system size produces here.

  • Free
  • No signup
  • Runs in your browser
  • Assumptions you can edit

Find it on your electricity bill as “units consumed”. Use an average of several months.

System type
Optional: estimate payback

Divide the total of a recent bill by its units to get your average rate. The estimate assumes the solar units replace grid units at that rate. Under net billing, exported units are credited at a lower buyback rate, so savings can be smaller.

Your solar estimate

Solar array needed
3.74
kW
550 W panels
7
panels
Installed array
3.85
kWp
Inverter size
3.5
kW
Monthly production
515
kWh
Roof area
21
m² (222 ft²)

Panels alone at the current market rate (PKR 41/W): about PKR 157,850. This excludes inverter, battery, mounting, cables, installation and approvals.

Uses 5.4 peak sun hours, 14% system losses and 96% inverter efficiency (82.6% combined), sized to offset 500 units a month on average. Summer output is higher and winter lower than this average.

What each solar system produces in Kohat

Average production at 5.4 peak sun hours, 14% system losses and 96% inverter efficiency, with 550 W panels.

System550 W panelsUnits per dayUnits per month
1 kW24.5134
2 kW48.9267
3 kW613.4401
5 kW1022.3669
7.5 kW1433.41,003
10 kW1944.61,337
15 kW2866.92,006
20 kW3789.22,675

Solar size needed in Kohat for your monthly units

Monthly unitsArray needed550 W panelsGuide
2001.5 kW3200 units →
3002.2 kW5300 units →
4003 kW6400 units →
5003.7 kW7500 units →
6004.5 kW9600 units →
7005.2 kW10700 units →
8006 kW11800 units →
1,0007.5 kW141000 units →
1,2009 kW171200 units →
1,50011.2 kW211500 units →
2,00015 kW282000 units →

Nearby and related cities

Net metering vs net billing in Pakistan

In February 2026 NEPRA replaced net metering with a net-billing model for new solar consumers. Under net billing, units you export are credited at a lower buyback rate than the price you pay for imported units, so using more of your own solar output directly (daytime loads, or a battery) is worth more than exporting it. Reports put agreements signed before 9 February 2026 outside the new rules, and sources differ on the exact new rate. Read the report.

Rules and rates have been revised more than once, so confirm the current buyback rate and eligibility with NEPRA or your distribution company before you decide on system size or a battery.

Frequently asked questions

How many solar panels do I need in Kohat?

It depends on your usage. At 5.4 peak sun hours, 500 units a month needs about 3.7 kW, which is 7 panels of 550 W. 1,000 units needs about 7.5 kW (14 panels).

How many peak sun hours does Kohat get?

This calculator uses 5.4 peak sun hours per day as a planning average for Kohat, which is 2% above the 5.3 average across the cities in the dataset. It is a planning value, not a measurement; you can change it in the wizard.

How many units does a 5 kW solar system produce in Kohat?

About 669 units a month on average (22.3 units a day), more in summer and less in winter.

Which electricity company serves Kohat?

Kohat is in Khyber Pakhtunkhwa and is served by PESCO. Your distribution company handles solar interconnection applications and sets the rules for exporting surplus power.

Is net metering still available?

NEPRA moved new solar consumers from net metering to net billing in February 2026. Reports say earlier agreements are outside the new rules and that new buyback rates are lower, but sources differ. Confirm the current rules with NEPRA or your distribution company.

More solar tools

Planning estimate, not an installation design. Results use average sun hours and standard loss assumptions. Real output varies by season, shading, tilt, temperature and equipment. Have a qualified installer verify sizing, protection, earthing and utility requirements before purchase.