How Many Solar Panels Does Your Home Actually Need?

Solar quotes make more sense when you arrive knowing your own numbers. Here is the back-of-envelope method installers use.

Step 1: your daily units

Take monthly units from your bill and divide by 30. A typical mid-size home lands between 15 and 25 units a day.

Step 2: panel output

In Pakistani sun, a 550W panel like the Longi Hi-MO 550W Monocrystalline Mono PERC Solar Panel produces roughly 2.2–2.5 units a day after real-world losses. The Homage Solar Panel 550W Mono PERC performs in the same band.

Step 3: divide

20 daily units ÷ 2.3 ≈ 9 panels (about a 5 kW system) to cover daytime load and bank credit for evenings under net metering. Roof space rule: each panel needs just over two square metres.

Browse panels and plan your array in Solar Plates.

Based in Lahore, serving all of Pakistan — check the product pages above for live prices and stock.