Electrical Approvals Checklist for a New Commercial Building in Hyderabad
1. Fix the Supply Category Before the Architecture Freezes
The first decision is whether the building takes an LT or HT supply, and it is driven by contracted load. In Telangana the LT ceiling for most categories is 56 kW, with relaxations for some industrial categories. An HT supply means a consumer substation, and a substation means dedicated space with statutory clearances, ventilation, fire separation and access for the utility's metering staff. That space requirement has to reach the architect before the structural design is frozen, which in practice means the load estimation exercise belongs at concept stage. Our guide to the HT and LT threshold covers how the category is determined.
2. Prepare a Load Schedule That Reflects the Building You Will Operate
Everything downstream depends on this document. It should cover lighting and small power by floor, HVAC on actual equipment schedules rather than nameplate assumptions, lifts, firefighting and pumps, kitchen and utility loads, UPS and server rooms counted as both load and charging burden, and a realistic allowance for tenant fit-outs in let space. From this you derive connected load, apply defensible diversity, and arrive at the contracted demand you will live with. Contracting too high means paying a demand charge floor on idle capacity; too low means penalties and a future migration.
3. File with the Distribution Licensee
The application to TGSPDCL, formerly TSSPDCL, covers ownership or occupancy proof, the sanctioned building plan, and the technical package: load schedule, single line diagram and substation layout. Feasibility depends on the capacity available at the feeding substation and the distance to the nearest source, so the supply route and who bears the cost of any dedicated feeder are settled at this stage. Our step-by-step guide to the TGSPDCL HT connection process sets out the full sequence.
4. Clear the Electrical Inspectorate Before You Build
Installation drawings must be approved by the Electrical Inspectorate before installation work begins, and the completed installation must clear a pre-energisation inspection before it can be charged. These are separate from the licensee's requirements and run in parallel with them. The common and costly error is treating Inspectorate approval as an end-of-project certificate, then discovering that approval conditions require changes to a substation that has already been built. Our guide to CEIG approval covers what is reviewed at each gate.
5. Assemble the Handover Documentation as You Go
A building is not finished when it is energised; it is finished when the owner holds the records needed to operate, insure and maintain it. That means approved drawings and as-built versions reconciled against them, the Completion and Test Report, inspection clearance, protection setting records and relay coordination, earth resistance readings by electrode, cable schedules and route drawings, equipment test certificates and warranties, and operation and maintenance manuals. Collecting this at the end, from subcontractors who have demobilised, is how buildings end up with no reliable record of their own electrical installation.
Frequently Asked Questions
What is the first electrical approval a new commercial building needs?
Practically, the first step is not an approval but a decision: establishing contracted load and therefore whether the supply is LT or HT. That determines whether a consumer substation is required, which drives the space allocation that has to reach the architect before the structure is designed.
Do the utility and Electrical Inspectorate approvals run in sequence or parallel?
In parallel, but both are mandatory. Load sanction from TGSPDCL does not substitute for Electrical Inspectorate drawing approval and pre-energisation inspection, and clearing the Inspectorate does not obtain your connection.
Who prepares the technical documentation for these approvals?
A licensed electrical contractor. In Telangana, work at high voltage requires a Grade A licensed contractor, and it is the contractor who submits drawings to the Inspectorate and issues the Completion and Test Report on which energisation depends.
Conclusion
The approval chain for a commercial building is manageable when it is sequenced properly and unmanageable when it is not. Fix the supply category at concept stage, build the load schedule on real equipment, file with the licensee and the Inspectorate in parallel, and collect handover documentation as the work proceeds rather than after it. Sree Bhavishya Electricals runs this entire chain for commercial, IT, hospitality and healthcare projects across Hyderabad, from concept-stage load estimation through to energisation and handover records.