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Solar Energy

Estimate rooftop-solar ROI with current official subsidy, generation, self-consumption, financing, and DISCOM rules.

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What to understand first

Solar economics depend on usable roof area, local generation, installation quality, tariff structure, subsidy eligibility, and net-metering rules. A sales estimate is not a substitute for a site-specific proposal.

Use the ROI guide as an initial model, then verify current scheme and utility requirements before signing a contract.

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Solar EnergyDECIDE3 min

How to Verify an Approved Solar Vendor Before Paying

For how to verify an approved solar vendor before paying, verify the business and official scheme status where applicable, site-survey assumptions, module and inverter model numbers, structure and electrical scope, generation estimate, warranties, approvals, milestones, exclusions, and service responsibility. Pay against verifiable milestones—not a promise of subsidy, savings, or “lifetime maintenance.”

Updated Aug 3, 2026
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