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IESCO Islamabad – Updated 2026
✅ Updated for May 2026

IESCO Peak Hours Islamabad 2026 – Today's Timings & TOU Tariff Guide to Save Money

Last updated: May 17, 2026 | Islamabad, Rawalpindi, Attock, Chakwal, Jhelum

Did you know? Shifting your heavy electricity usage from peak hours to off-peak hours can save you 15-30% on your IESCO bill. Learn the exact timings below and start saving today.

What Are IESCO Peak Hours and Off-Peak Hours?

Peak hours are times when electricity demand across Islamabad, Rawalpindi and the IESCO region is highest. During these hours, the grid is under maximum stress, and electricity rates are effectively higher (especially under Time-of-Use tariff).

Off-peak hours are times when demand is low. Shifting your heavy appliance usage to these hours can lower your bill and reduce strain on the grid.

PEAK HOURS

Higher Effective Rates

5:00 PM – 11:00 PM

Highest electricity demand in Islamabad region

OFF-PEAK HOURS

Lower Effective Rates

11:00 PM – 5:00 PM (next day)

Best time for heavy appliances

IESCO Peak Hours Schedule 2026

IESCO follows a demand-based peak hour schedule. Below are the standard timings for the twin cities and surrounding areas:

Time PeriodCategoryGrid ConditionRecommended Action
5:00 PM – 7:00 PM<\/td>Early Peak<\/span><\/td>High demand starts<\/td>Avoid heavy appliances<\/td>
7:00 PM – 11:00 PM<\/strong><\/td>Critical Peak<\/span><\/td>Maximum demand (ACs, lights)<\/td>Highest rates, minimal usage<\/td>
11:00 PM – 7:00 AM<\/strong><\/td>Deep Off-Peak<\/span><\/td>Lowest demand<\/td>Run geyser, washing machine, AC<\/td>
7:00 AM – 5:00 PM<\/strong><\/td>Day Off-Peak<\/span><\/td>Moderate demand<\/td>Normal daily usage<\/td>
Note: During extreme summer (June-August), peak hours may extend from 6:00 PM to 12:00 AM due to higher AC usage.

Seasonal Peak Hour Variations in IESCO Region

SeasonPeak HoursDurationWhy?
Summer (May-August)<\/td>6:00 PM – 12:00 AM<\/td>6 hours<\/td>AC usage peaks; longer daylight<\/td>
Winter (November-February)<\/td>5:00 PM – 10:00 PM<\/td>5 hours<\/td>Heater use, earlier sunset<\/td>
Ramadan<\/td>4:00 PM – 8:00 PM / 10:00 PM – 12:00 AM<\/td>4+2 hours<\/td>Sehri and Iftar preparation<\/td>
Monsoon (July-September)<\/td>7:00 PM – 11:00 PM<\/td>4 hours<\/td>Reduced demand due to cooler weather<\/td>

Area-Wise Peak Hours in IESCO Region (Major Cities)

City / AreaTypical Peak HoursOff-Peak HoursSpecial Notes
Islamabad (Sectors)<\/td>6:00 PM – 11:00 PM<\/td>11:00 PM – 6:00 PM<\/td>Stable supply, lower load shedding<\/td>
Rawalpindi (Cantt/Saddar)<\/td>5:30 PM – 10:30 PM<\/td>10:30 PM – 5:30 PM<\/td>Commercial areas have different patterns<\/td>
Attock<\/td>5:00 PM – 10:00 PM<\/td>10:00 PM – 5:00 PM<\/td>Rural feeder variations<\/td>
Chakwal<\/td>6:00 PM – 10:00 PM<\/td>10:00 PM – 6:00 PM<\/td>Load shedding affects peak hours<\/td>
Jhelum<\/td>5:00 PM – 10:00 PM<\/td>10:00 PM – 5:00 PM<\/td>Industrial area considerations<\/td>
Wah Cantt<\/td>5:30 PM – 10:30 PM<\/td>10:30 PM – 5:30 PM<\/td>Industrial and residential mix<\/td>

How Much Can You Save by Avoiding IESCO Peak Hours?

Real Example – Islamabad Household

  • Air Conditioner (1.5 ton) – 1,500W × 6 hours = 9 kWh
  • Washing Machine – 500W × 1 hour = 0.5 kWh
  • Water Heater (Geyser) – 2,000W × 1 hour = 2 kWh
  • Iron – 1,000W × 0.5 hour = 0.5 kWh
  • Refrigerator (already running) – 150W × 12 hours = 1.8 kWh

Total daily consumption: 13.8 kWh

If used during PEAK hours: 13.8 kWh × Rs 33.10 = Rs 456 per day

If shifted to OFF-PEAK hours: 13.8 kWh × Rs 25.50 (estimated) = Rs 352 per day

Daily savings: Rs 104 | Monthly savings: Rs 3,120 | Yearly savings: Rs 37,440

Pro Tip: Use our IESCO Bill Calculator to see exactly how much you can save by shifting your usage to off-peak hours.

Appliances to Shift to Off-Peak Hours in IESCO Region

Air Conditioners
Set timer for 11 PM, use 26°C, sleep mode
Water Geyser
Use timer to heat water early morning (5-6 AM)
Washing Machine
Use delay start to run after 11 PM
Electric Vehicle Charging
Charge overnight
Oven / Microwave / Dishwasher
Use during afternoon off-peak or after 11 PM

How to Track Real-Time IESCO Peak Hours & Load Shedding

Frequently Asked Questions (FAQ)

What are IESCO peak hours in Islamabad 2026?

IESCO peak hours are typically from 5:00 PM to 11:00 PM daily. During summer, they extend to 12:00 AM.

Is electricity cheaper at night in Islamabad?

Yes, under Time-of-Use tariff, rates are lower during off-peak hours (11:00 PM – 5:00 PM next day).

Does IESCO have load shedding during peak hours?

Yes, 30-60 minutes in areas with high line losses. Check the IESCO app for your feeder’s schedule.

How much can I save by shifting to off-peak hours?

15-30% on your bill. A 500‑unit household can save Rs 2,500-5,000 monthly.

What is the best time to run AC in Islamabad?

After 11:00 PM (off-peak). Set AC to 26°C and use sleep timer.

Is solar net metering worth it in IESCO region?

Yes, a 5kW system can pay off in 2.5-3 years. Use our solar calculator.

Quick Reference: IESCO Peak Hours Summary

Summer Peak

6:00 PM – 12:00 AM

Avoid heavy usage

Off-Peak

11:00 PM – 5:00 PM

Best for heavy appliances

Winter Peak

5:00 PM – 10:00 PM

Shorter duration

Best Savings

After 11:00 PM

Run washer, geyser, AC