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Net-metering / interconnection agreement — documents, timeline & process
R1 · Pre-development approvals · ~30 days (indicative)
The agreement letting you export solar power to the grid and offset your bill — capacity caps and tariffs differ sharply by state.
Portal application → feasibility → agreement → installation → inspection → meter → synchronization.
Solar PV (rooftop)
Statutory basis & authority
| Statutory basis | State ERC net-metering / renewable energy regulations |
|---|---|
| Authority | State discom |
| Department | Discom (distribution utility) |
| Indicative timeline | ~30 days (verify with the authority) |
| Fees | ₹500–5,000 application + meter cost ⚑ |
Documents required
- Application on discom portal
- Sanctioned load proof
- System sizing details / SLD
- Agreement on stamp paper (some states)
When is this required?
- Discom-level interconnection: Project type: Solar PV (ground-mounted) / Wind / Hybrid (solar + wind) / Standalone BESS; Connectivity level: Discom (distribution)
- Rooftop solar compact set: Project type: Solar PV (rooftop)
State-specific notes
Complete these first
- Discom feasibility approval & registration — The discom checks whether your roof capacity fits your sanctioned load and local network before anything is installed…
Solarian expert note
Capacity typically capped at sanctioned load / past-12-month consumption — check the state cap before sizing.
Frequently asked questions
What is Net-metering / interconnection agreement?
The agreement letting you export solar power to the grid and offset your bill — capacity caps and tariffs differ sharply by state.
How long does Net-metering / interconnection agreement take?
Around 30 days as an indicative planning figure. Actual timelines vary by authority workload and application quality — verify with the concerned authority.
Which authority grants Net-metering / interconnection agreement?
State discom. Department: Discom (distribution utility).
What documents are required for Net-metering / interconnection agreement?
Application on discom portal; Sanctioned load proof; System sizing details / SLD; Agreement on stamp paper (some states).
When is Net-metering / interconnection agreement required?
Project type: Solar PV (ground-mounted) / Wind / Hybrid (solar + wind) / Standalone BESS; Connectivity level: Discom (distribution). Project type: Solar PV (rooftop).
Related approvals in this phase
- ISTS connectivity & GNA (General Network Access)
- STU connectivity & evacuation approval
- Discom feasibility approval & registration
- Section 68 prior approval (overhead lines)
See also: all approvals · glossary of terms · state roadmaps
Map my project's full approval roadmap →Should my business switch to green power?
Indicative guidance from the RegNav knowledge base, expert-verified by Solarian. Not legal advice — always verify with the concerned authority.