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iSOLAR POWER
Engineering Sizing Tool

Get a Preliminary Estimate of Your Solar Requirement.

Start with your electricity bill or monthly units to understand what solar capacity may be worth evaluating for your property. This tool provides an initial sizing baseline before a formal technical site survey.

₹3,500per month
1,00025,000
Preliminary Engineering Sizing

Estimated System Requirement

Recommended System
3.5 kWp
~441 units / month
Required Roof Area
280 - 350
sq. ft. shadow-free space
Estimated Annual Power Cost Offset
~₹42,024 / year
CO₂ Avoided
4.3 tons/yr
Recommended Architecture: On-Grid Solar System

Direct grid-tied solar is the most cost-effective solution for properties with a stable utility supply and net-metering.

This is a preliminary sizing estimate, not a final engineering proposal. Final sizing, generation yield, and commercial ROI depend on a formal site survey, sanctioned load, shadow analysis, roof structure, and local utility DISCOM approvals.
Get My Detailed Solar Assessment

Pre-fills your 3.5 kW calculation into our engineering enquiry.

How Capacity (kW) Is Estimated

Calculated by converting your monthly electricity consumption into daily average units, divided by a conservative 4.2 peak sun hours per day. Sized to offset up to 80–90% of your daytime load without incurring excess export capping.

Roof Space Assumptions

Modern high-wattage monocrystalline PERC and TOPCon panels require ~80 to 100 square feet of completely shadow-free space per kilowatt, including inter-row walkway access for cleaning and maintenance.

Savings & Tariffs

Financial savings use current average blended tariffs across residential (₹8.50/unit) and commercial (₹11.50/unit) slabs. Final tariff calculations depend on your specific DISCOM billing category and sanctioned load.

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