Solar for a 1 Kanal House: Sizing a Bigger Home Properly

A 1 kanal house is a different project from a 5 or 10 marla one. Bills in summer can run into thousands of units, there are often four or more ACs, a few fridges, maybe a home office, and almost always three-phase supply. Getting the design right saves a lot of money.

Start with the bill, not the plot

Look at the last 12 months. Many 1 kanal homes we see use roughly 1,500 to 3,000 units in peak summer months and much less in winter. The summer peak is mostly ACs. The winter base load tells you how much the house uses without cooling.

Inverter: think three-phase

With three-phase supply, a three-phase hybrid inverter is usually the cleanest solution. It spreads solar across all phases, so ACs on every phase benefit. The Everon HYD 15 to 20kW is built for exactly this kind of home.

Some owners prefer two or three single-phase inverters, one per phase. It can work, but balancing loads and battery sharing becomes more complex. Discuss it with your installer before deciding.

Panels

For 15 to 20kW, you’ll need roughly 26 to 35 panels of around 580W. A 1 kanal roof usually has space, but water tanks, stair rooms and solar water heaters still create shade. An elevated structure over the whole roof is common at this size and keeps the roof usable underneath.

Battery

Trying to run four ACs overnight on batteries is very expensive. A more sensible approach:

• Size the battery for essentials: fans, lights, fridges, WiFi, CCTV, maybe one bedroom AC.
• That often lands around 10 to 20kWh of lithium storage.
• Let the grid handle remaining night-time AC load.

Our guide on how much battery you need walks through the calculation.

Things that matter more at this size

• Proper cable sizing for longer runs and higher currents.
• Earthing and surge protection on a large exposed array.
• Structure design for wind load on big elevated frames.
• Monitoring, so you notice if one string stops producing.
• Net billing paperwork and meter type for three-phase connections.

Phase it if needed

Many families do it in stages: inverter and panels first, batteries a few months later. A hybrid inverter makes this easy. Just make sure the first stage is designed with the final system in mind.

Start by putting your appliances into the load calculator, then talk to us with your bill in hand.