A protected home using 100 units pays about Rs 2,131 with the current adjustments and a 2 kW load. An unprotected home pays about Rs 4,064 for the same 100 units, and a lifeline connection of 1 kW about Rs 927.
At 100 units the consumer type on your bill matters more than the units. NEPRA's tariff treats a home as protected only when it has used 200 units or less in each of the last six months, so one summer month above 200 can turn a small bill into an unprotected one for half a year.
Three bills for the same 100 units
The tariff has three rates for a home using 100 units. Lifeline pays Rs 7.74 a unit with no fixed charge, FC surcharge or adjustments. Protected pays Rs 10.54 and Rs 200 per kW. Unprotected pays Rs 22.44 and Rs 275 per kW.
| Line | Lifeline, 1 kW | Protected, 2 kW | Unprotected, 2 kW |
|---|---|---|---|
| Rate | 100 × 7.74 | 100 × 10.54 | 100 × 22.44 |
| Cost of electricity | Rs 774.00 | Rs 1,054.00 | Rs 2,244.00 |
| Fixed charges | Rs 0.00 | Rs 400.00 | Rs 550.00 |
| FC surcharge | Rs 0.00 | Rs 43.00 | Rs 323.00 |
| Quarterly adjustment | Rs 0.00 | Rs 51.94 | Rs 51.94 |
| Fuel adjustment | Rs 0.00 | Rs 236.73 | Rs 236.73 |
| Electricity duty | Rs 11.61 | Rs 16.59 | Rs 34.44 |
| GST | Rs 141.00 | Rs 282.00 | Rs 577.00 |
| Duty on fuel adjustment | Rs 0.00 | Rs 3.55 | Rs 3.55 |
| GST on fuel adjustment | Rs 0.00 | Rs 43.00 | Rs 43.00 |
| Total | Rs 926.61 | Rs 2,130.81 | Rs 4,063.66 |
| Per unit | Rs 9.27 | Rs 21.31 | Rs 40.64 |
The FC surcharge alone is Rs 0.43 a unit for protected homes and Rs 3.23 for unprotected ones, which is Rs 43 against Rs 323 at 100 units.
Lifeline, protected or unprotected: which are you?
Your bill prints the tariff and whether the connection is protected. The rules behind the three types:
- Lifeline: a single-phase home connection of up to 1 kW using up to 100 units. Above 100 units the bill is worked out at unprotected rates.
- Protected: a home that has used 200 units or less in each of the last six months. It pays the protected rates up to 200 units, with the benefit of one previous slab.
- Unprotected: every other home, including one that crossed 200 units in any of the last six months.
So a home using only 100 units now can still be unprotected because of a 230 unit bill in July. It goes back to protected rates once it completes six straight months at 200 units or less. FESCO told its billing staff in July 2026 that no correction will be made for a reading even one unit above 200, so the meter reading is what counts.
What unit 101 changes
- Protected: unit 101 is charged at the next protected rate of Rs 13.01, and the fixed charge moves from Rs 200 to Rs 300 per kW. On 2 kW the bill goes from Rs 2,130.81 to Rs 2,386.38.
- Unprotected: every unit moves to Rs 28.91, because unprotected homes get no previous slab. The bill goes from Rs 4,063.66 to Rs 4,939.88.
- Lifeline: unit 101 ends lifeline billing, and the whole bill is worked out at unprotected rates: Rs 4,585.88 on 1 kW.
If you are near 100 units late in the month, the next step up is shown on the 150 unit electricity bill page.
Paying the 100 unit bill late
Bills now print three amounts. The late payment surcharge is 5% for the first 3 days after the due date and 10% after that, worked out on the electricity charges without the fuel adjustment and taxes.
| Protected, 2 kW | Unprotected, 2 kW | |
|---|---|---|
| By the due date | Rs 2,131 | Rs 4,064 |
| Within 3 days after | Rs 2,208 | Rs 4,222 |
| Later than that | Rs 2,286 | Rs 4,381 |
Protected bills from 50 to 150 units
Protected home, 2 kW load, the current adjustments.
| Units | Cost of electricity | Estimated total bill |
|---|---|---|
| 50 | Rs 527 | Rs 1,302 |
| 75 | Rs 791 | Rs 1,715 |
| 100 | Rs 1,054 | Rs 2,131 |
| 125 | Rs 1,379 | Rs 2,856 |
| 150 | Rs 1,705 | Rs 3,344 |
Worked with electricity duty of 1.5%, no meter rent, the September 2026 fuel adjustment, billed in November 2026 and the quarterly adjustment on September, October and November 2026 bills. Arrears, meter rent and the days in your reading period change the printed bill, which is the amount to pay.
Questions people ask
How much is a 100 unit electricity bill in Pakistan?
About Rs 2,131 for a protected home and Rs 4,064 for an unprotected home on a 2 kW load, with the current fuel and quarterly adjustments, duty and GST. A lifeline connection of 1 kW pays about Rs 927. The electricity unit price page lists the rate for every slab.
100 unit ka bill kitna hota hai?
Protected ghar ke liye takreeban Rs 2,131 aur unprotected ke liye Rs 4,064, 2 kW load par, fuel adjustment aur taxes samait. Lifeline (1 kW) connection par takreeban Rs 927.
What do 100 units of electricity cost per unit?
The tariff rate is Rs 10.54 protected and Rs 22.44 unprotected. Once fixed charges, adjustments, duty and GST are added, the real cost is Rs 21.31 a unit protected and Rs 40.64 unprotected.
Is a 100 unit bill the same in Karachi?
Yes. K-Electric has charged the national uniform tariff since February 2026, with the same fuel and quarterly adjustments as LESCO, MEPCO, IESCO and the other companies. A protected Karachi home using 100 units pays about Rs 2,131 before any local charges.
Why am I charged unprotected rates on only 100 units?
Because one of your last six bills was above 200 units. Protected rates need six straight months at 200 units or less. Check the 12-month history printed on your bill: once six months in a row are at 200 or below, the protected rate comes back.
Last reviewed 8 November 2026. Results are estimates; official notices always take precedence.