What Size Solar System for a 3-Bedroom House in Pakistan?
A 3-bedroom house in Pakistan typically needs a 5–8 kW solar system, but the exact size depends on your appliances, air conditioning use, and electricity bill. This guide walks you through sizing a system for a 3-bedroom home step by step.
Typical 3-Bedroom House Load Profile in Pakistan
| Appliance | Units | Power Each | Daily Use | Daily kWh |
|---|---|---|---|---|
| 1.5-ton inverter AC | 1 | 1.2 kW avg | 8 hrs | 9.6 kWh |
| Refrigerator | 1 | 0.15 kW avg | 24 hrs | 3.6 kWh |
| Ceiling fans | 4 | 0.07 kW | 12 hrs | 3.4 kWh |
| LED lights | 8 | 0.01 kW | 6 hrs | 0.5 kWh |
| Washing machine | 1 | 0.5 kW | 1 hr | 0.5 kWh |
| TV + devices | 2 | 0.1 kW | 6 hrs | 1.2 kWh |
| Water pump | 1 | 0.5 kW | 1 hr | 0.5 kWh |
| Total | ~19.3 kWh/day |
In summer, a 3-bedroom home’s biggest load is the AC. In winter, remove the AC load and daily consumption drops to approximately 9–10 kWh/day. System sizing should be based on your summer consumption to maximise savings in the most expensive months.
Recommended System Size by Bill Amount
| Monthly Electricity Bill | Daily Consumption | Recommended System | System Cost |
|---|---|---|---|
| Rs 8,000–12,000/month | 10–15 kWh/day | 3–5 kW on-grid | Rs 230,000–400,000 |
| Rs 12,000–20,000/month | 15–22 kWh/day | 5–6 kW on-grid | Rs 380,000–470,000 |
| Rs 20,000–30,000/month | 22–30 kWh/day | 6–8 kW on-grid | Rs 470,000–620,000 |
| Rs 30,000+/month | 30+ kWh/day | 8–10 kW on-grid | Rs 620,000–780,000 |
For Most 3-Bedroom Homes: The 5kW System
A 5kW on-grid solar system is the most popular choice for 3-bedroom homes in Pakistan in 2026. In Lahore, it generates 22–28 units/day in summer — covering a typical 3-bedroom home’s daytime consumption with surplus exported to the grid via net metering for evening bill offset.
5kW System: What It Covers
- 1 × 1.5-ton inverter AC running continuously during solar hours
- Full lighting, fans, refrigerator, TV, and washing machine simultaneously
- Net metering surplus during midday (peak generation) credited to evening bill
- Annual generation: 6,000–7,000 units in Lahore; 7,000–8,000 in Karachi
- Annual savings: Rs 300,000–420,000 at current tariffs
Do You Need a Battery?
| Situation | Recommendation |
|---|---|
| Load shedding 4–8 hrs/day | Hybrid system with 7–14 kWh LiFePO4 battery |
| Load shedding under 3 hrs/day | On-grid with net metering — battery not needed |
| No load shedding (lucky!) | On-grid only — maximize ROI |
| Frequent grid trips | Hybrid with battery — 20ms UPS switchover |
Get a Quote for Your 3-Bedroom Home
Tell us your bill and city — we’ll show you the right system size and connect you with local AEDB-licensed installers.
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.
