Question 1

How is the central solar subsidy calculated in India (PM Surya Ghar)?

Accepted Answer

Central subsidy is based on system size: up to 2 kW uses a per-kW rate, the 3rd kW adds a lower amount, and the total is capped for 3 kW and above as per official scheme guidelines.

Question 2

Does every state provide an additional subsidy on top of central subsidy?

Accepted Answer

Not always. Central subsidy applies through the national portal. Some states may offer extra benefits (capital subsidy/GBI/rebates) depending on local policy and DISCOM rules.

Question 3

What documents are typically required for rooftop solar subsidy?

Accepted Answer

Usually electricity consumer details, ID/address proof, bank details for DBT, and rooftop ownership/authorization (as per your DISCOM).

Question 4

How accurate are the savings and payback estimates?

Accepted Answer

They are estimates based on typical Indian generation averages and a reasonable tariff range. Your actual savings depend on consumption pattern, tariff slab, shading, orientation, and net-metering rules.

Question 5

What is sanctioned load and why does it matter?

Accepted Answer

Sanctioned load is the maximum load approved for your electricity connection. DISCOM feasibility and net metering approvals can depend on sanctioned load and technical limits.

Question 6

How much electricity does 1 kW solar generate per month in India?

Accepted Answer

A common planning average is ~120 units per month per 1 kW, though real output varies by location, season, and rooftop conditions.

Question 7

Can I take a loan for rooftop solar installation?

Accepted Answer

Yes. Several banks offer solar financing. Rates and eligibility vary by borrower profile and bank product, so always verify the latest terms on official bank pages.

Question 8

How do I apply for rooftop solar subsidy in my state?

Accepted Answer

You typically apply through the national portal and your DISCOM for feasibility, net metering, inspection and commissioning. The subsidy is released via DBT after commissioning.

Solar Subsidy Calculator India 2026

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