Solar System for Rs 20000 Electricity Bill in Pakistan 2026
If your monthly WAPDA bill is around Rs 20,000, you are consuming approximately 300–450 units per month. This guide tells you exactly what solar system size you need, how much it costs, and what savings to expect in 2026.
What System Size Do You Need for Rs 20,000/Month?
| Bill (Rs/month) | Est. Monthly Units | Recommended System | On-Grid Price (PKR) |
|---|---|---|---|
| Rs 20,000 | 300–450 | 3–4kW | Rs 270,000–360,000 |
WAPDA residential tariff in 2026 includes fuel price adjustments (FCA) and quarterly tariff adjustments (QTA). Always check your bill’s exact per-unit rate — it varies by DISCO and slab.
How to Read Your Electricity Bill to Find Your Units
On your WAPDA/DISCO bill, look for the line that says “Units Consumed” or “Present – Previous Reading”. This is your actual monthly consumption in kWh (units).
| Bill Item | Where to Find It | What It Means |
|---|---|---|
| Units Consumed | Middle section of bill | Total kWh used this month |
| Fuel Price Adjustment | Bottom section | Variable charge added monthly |
| Fixed Charges | Meter rent section | Unavoidable base charges |
| Total Payable | Bottom right | What you actually pay |
What Solar System Eliminates a Rs 20,000 Bill?
- System size: 3–4kW
- Monthly production: 300–450 units
- System type: On-grid (grid-tied) recommended
- Estimated cost: Rs 270,000–360,000
- Monthly savings: Rs 18,000–22,000
- Net metering: Exports surplus to grid — credits appear on your bill
Step-by-Step: How Solar Eliminates Your Bill
With an on-grid solar system and NEPRA net metering:
- Solar panels generate electricity during daylight hours (6 AM–6 PM).
- Your home uses solar power directly — the inverter prioritises solar over grid.
- Surplus units are exported to the DISCO grid and credited at your supply tariff rate.
- At night, you draw from the grid but your credit balance offsets the cost.
- Net result: your monthly bill drops to only fixed charges (Rs 500–2,000).
ROI and Payback Period
| Metric | Value |
|---|---|
| System Cost | Rs 270,000–360,000 |
| Monthly Savings | Rs 18,000–22,000 |
| Annual Savings | Rs 18,000–22,000 × 12 |
| Payback Period | ~2 years |
| 25-Year Total Savings | Rs 18,000–22,000 × 300 |
Always buy from an AEDB-registered installer. Ask for an itemised quotation showing panel brand, inverter model, warranty terms, and DISCO net metering support.
Frequently Asked Questions
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Sources & references
Tariff, net-metering, and policy details on this page draw on the following official sources. Rates change often, so confirm current figures with the relevant authority or a licensed installer before you decide.
- NEPRA — National Electric Power Regulatory Authority: electricity tariffs and the 2026 shift from net metering to net billing.
- AEDB — Alternative Energy Development Board: solar policy, installer standards, and net-metering guidance.
- Your local distribution company (DISCO) — for example LESCO, K-Electric, IESCO, MEPCO, PESCO or QESCO — for area-specific tariffs and the net-metering application process.
