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Start with your usage, not a sales pitch

What size could suit you?

A transparent planning calculator. Change the assumptions and see how the result changes.

Your starting point

Use your electricity bill. Averaging 12 months is more representative than one month.
This is an energy target, not a guarantee of bill savings or grid approval.

Make the assumptions yours.

1,450 is an illustrative starting assumption, not measured local sunlight. Replace with a site-specific simulation.

₹50,000 and 100 sq ft are editable demonstration assumptions — not market benchmarks or a layout specification. Tax and subsidy are not calculated.

Your illustrative estimate
— kWp DC

Approximate panel-array size for your selected energy target.

Illustrative annual generation
— kWh
Illustrative monthly average
— kWh
Planning cost, scope not defined
—
Indicative roof allowance
— sq ft
Find matching installers

Not an engineering design, yield forecast, subsidy determination or financial advice. Shading, roof strength, panel layout, export rules and the DC/AC ratio need a qualified site assessment. Annual generation is not the same as self-consumption.

See the calculation

Target annual energy = monthly units × 12 × target share.
Array size = target annual energy ÷ annual specific yield, rounded up to the next 0.1 kWp.
Generation = rounded size × yield.
Cost and area = rounded size × your assumptions.