Getting an HT connection in Tamil Nadu
## When you need HT
LT supply in Tamil Nadu is available up to 150 kW. Above that, you need a high-tension (HT) connection at 11, 22 or 33 kV, with your own substation.
## The steps
- Apply to TNPDCL with the contract demand you need and your site documents.
- TNPDCL inspects the site and issues an estimate for the line extension and metering.
- Your substation drawings go to CEIG for approval.
- The substation is built: transformer, HT panel or RMU, cabling, earthing and LT panel.
- Testing, CEIG inspection, meter fixing and energisation.
## Documents
Ownership or lease proof, company documents, site plan with the substation location, single-line diagram and layout, and test reports for the equipment.
## How long it takes
Typically three to six months, depending on line work and approvals. Our HT connection roadmap tool shows each step for your load.