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Structural stability certificate (rooftop) — documents, timeline & process
R4 · Electrical safety (build stage) · ~7 days (indicative)
A chartered/structural engineer certifies your roof can carry the panel array and wind loads — quick, but discoms won't process interconnection without it.
Site assessment and load calculation; certificate submitted with the interconnection application.
Solar PV (rooftop)
Statutory basis & authority
| Statutory basis | Discom net-metering procedural requirements |
|---|---|
| Authority | Chartered/structural engineer (empanelled where required) |
| Department | Chartered structural engineer |
| Indicative timeline | ~7 days (verify with the authority) |
| Fees | ₹2,000–10,000 market rate |
Documents required
- Roof drawings / structure details
- Array layout + weight calculation
When is this required?
- Rooftop solar compact set: Project type: Solar PV (rooftop)
Solarian expert note
Mandatory thresholds vary (~≥75 kW common; some discoms always require it for elevated structures). ⚑
Frequently asked questions
What is Structural stability certificate (rooftop)?
A chartered/structural engineer certifies your roof can carry the panel array and wind loads — quick, but discoms won't process interconnection without it.
How long does Structural stability certificate (rooftop) take?
Around 7 days as an indicative planning figure. Actual timelines vary by authority workload and application quality — verify with the concerned authority.
Which authority grants Structural stability certificate (rooftop)?
Chartered/structural engineer (empanelled where required). Department: Chartered structural engineer.
What documents are required for Structural stability certificate (rooftop)?
Roof drawings / structure details; Array layout + weight calculation.
When is Structural stability certificate (rooftop) required?
Project type: Solar PV (rooftop).
Related approvals in this phase
- Pollution consent / SPCB intimation (CTE/CTO)
- Fire NOC (substations, control rooms, BESS)
- CEIG approvals — drawings, inspection & charging (3-touch)
See also: all approvals · glossary of terms · state roadmaps
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Indicative guidance from the RegNav knowledge base, expert-verified by Solarian. Not legal advice — always verify with the concerned authority.