100 Units Electricity Bill (LESCO 2026)

What a 100 units LESCO bill covers in 2026

A 100 units electricity bill in Pakistan sits in the first protected slab of the LESCO residential tariff. In practical terms this is what a small 1–2 bedroom household with LED lighting, one fridge and a couple of fans consumes over a full month outside peak summer. Because 100 units is well below the 200-unit protected ceiling, the entire block is billed at the subsidised slab-1 rate of Rs 10.54 and GST is waived.

The rupee value is built up from the energy charge (100 × Rs 10.54), a fixed charge per kW of sanctioned load, the financing-cost surcharge, FPA and quarterly adjustment (notified by NEPRA), Electricity Duty at 1.5% and the flat PTV fee of Rs 35. The worked example below shows each line.

Worked example: pricing 100 units line by line

Every line below uses the NEPRA rates for Sep 2026 and the same formula as our calculator (2 kW sanctioned load, FPA Rs 0.50/unit).

1. 1.Energy — 01 — 100 units (100 × Rs 10.54)Rs 1,054
2. 2.Fixed charge (Rs 200 × 2 kW)Rs 400
3. 3.FC surcharge (100 × Rs 1.43)Rs 143
4. 4.Fuel price adjustment (100 × Rs 0.50)Rs 50
5. 5.Quarterly adjustment (100 × Rs 0.00)Rs 0
6. 6.Electricity duty (1.5%) (1.5% of Rs 1,054)Rs 16
7. 7.GST (18%) (waived for protected users)Rs 0
8. 8.PTV fee (flat)Rs 35
9. Total payableRs 1,698

Saving tips for the first slab

• Watch the 100-unit line, not just 200. Unit 101 moves into the Rs 13.01 slab and lifts the fixed charge from Rs 200 to Rs 300 per kW — Rs 1,698 becomes about Rs 1,913.
• Check whether you qualify as lifeline. Single-phase connections up to 1 kW using 100 units or less can be billed at Rs 3.95–7.74 per unit; ask LESCO if your connection is eligible.
• Review your sanctioned load. The fixed charge is per kW, so a small home on 1 kW pays half the fixed charge of one on 2 kW.
• Cut standby load. Chargers, receivers and TVs left on standby can use 5–8 units a month — enough to tip you over 100.

100 units vs 200 units — a quick comparison

Doubling usage from 100 to 200 units does not double the bill — it more than doubles it because you enter the second protected slab and the taxable base rises. Compare the numbers side-by-side on our 200 units bill breakdown and read the eligibility rules on the protected users page. For a full slab-by-slab reference, open the LESCO unit rates table.