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Use a no-subsidy payback as your safety test

Use a no-subsidy payback as your safety test. Check the cause, evidence to keep, exact recovery steps, and escalation. Based on PM Surya Ghar Subsidy.

Start here

Take the total installed system cost and calculate annual savings using conservative generation and your real electricity tariff. Then calculate the payback without subsidy. If the project is still reasonable, the subsidy improves a sound investment. If the project works only because a vendor assumes immediate subsidy, reconsider the quote.

What applies to this exact problem

Take the total installed system cost and calculate annual savings using conservative generation and your real electricity tariff. Then calculate the payback without subsidy. If the project is still reasonable, the subsidy improves a sound investment. If the project works only because a vendor assumes immediate subsidy, reconsider the quote.

Also model lower generation caused by shade, downtime or equipment performance. A system that is oversized relative to daytime consumption may export more energy at a value different from retail electricity saved. Use the current DISCOM rules for your area rather than a national average.

Monitor the first year

Save monthly generation and electricity bills. Compare actual output with the proposal after accounting for season. Large unexplained underperformance should be raised during warranty while evidence is fresh.

The scheme can reduce upfront cost, but long-term value comes from a safe system that generates as expected for years. Design quality, equipment support and monitoring matter after the subsidy has been paid.

Check these first

  • State the exact expected result and the exact result you have now.
  • Find the official record that owns the result and compare it with your evidence.
  • Change one thing at a time, then verify the final state before moving on.

Fix it in this order

  1. State the exact expected result and the exact result you have now.
  2. Find the official record that owns the result and compare it with your evidence.
  3. Separate hardware, installer, DISCOM/net-meter, portal, and subsidy status. They are different failure points.
  4. Record system size, module/inverter details, commissioning date, generation data, application IDs, and promised scope.
  5. Compare actual installation and generation with the signed quote, warranty, and portal/DISCOM records.
  6. Ask the responsible party for the exact pending action and owner of that action in writing.
  7. Do not close the job until safety checks, commissioning, monitoring, and applicable net-meter/subsidy records reconcile.

Build the proof pack

  • Signed quote and scope
  • Module/inverter serials and warranty
  • DISCOM/portal application IDs
  • Generation data, photos, and installer tickets

Avoid making the case harder

  • Paying the final amount before checking agreed milestones
  • Assuming low generation is automatically a bad panel
  • Treating installer completion as DISCOM/subsidy completion

How you know it is really fixed

  • The official record and your real-world result agree.
  • You have enough written evidence to prove the issue is finished if it returns later.

If it is still not fixed

  1. Installer/vendor grievance
  2. DISCOM/portal grievance route
  3. Consumer forum or other official remedy where appropriate

Official sources from the full guide

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This page solves one branch. The parent guide covers the full decision, edge cases, alternatives, and related checks.

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