🔌 Introduction

Statutory approvals for power connectivity are essential for securing large-scale infrastructure projects. Whether you’re setting up a data center or a high-load industrial facility, or a Commercial project, obtaining statutory approvals is a mission-critical part of the process. Moreover, these approvals ensure that your power connection meets safety, technical, and legal standards laid down by utility and regulatory bodies.

This blog outlines all essential approvals, documents, timelines, and strategies needed to complete this crucial part of the due diligence process effectively.

✅ 1.Utility Board Approvals

In Tamil Nadu, obtaining key statutory approvals for power connectivity through TANGEDCO is essential for all HT/EHT power supply applications

Required Documents:

• Applicant’s name, address, and authorization letter
• Company documents (PAN, GST, MOA, AOA)
• Site ownership or lease deed
• Planning Permit & Approved Plan
• Connected load details
• Site Plan with metering location

Approval Process:

1. Initially, submit the online application via the TNEB portal.
2. Subsequently, TNEB will conduct a feasibility study and prepare the load flow report.
3. Thereafter, the payment of deposits must be made by the applicant.
4. Once completed, demand sanction and agreement execution will follow.
5. Following this, the self-execution of power extension works from TNEB will begin.
6. Meanwhile, all Right of Way (ROW) approvals for the power extension works should be obtained.
7. Next, the drawing approval and equipment inspection will be carried out by the concerned authorities.
8. Finally, the inspection and energization will be performed to commission the power supply.

✅ 2. CEIG – Electrical Safety Approval

The Chief Electrical Inspector to Government (CEIG), detailed here, must inspect and approve the entire EHV system before energization.

Key Submission Requirements:

• Site Plan
• Single Line Diagram (SLD)
• Electrical equipment layout
• Earthing & lightning protection design
• Soil resistivity & fault level analysis
• NCT and protection coordination calculations

Approval Process:

1. First, drawing submission and approval must be completed.
2. Thereafter, a site inspection will be conducted post erection.
3. Subsequently, final clearance for power switch-on will be granted.

⏳ 3. Timelines to Keep in Mind

Approval Stage	Approximate Duration
Feasibility & Application Registration	10–12 weeks
Demand Sanction	20-24 weeks
Equipment approvals & Readiness	20-24 weeks
Erection & Final Site Inspections	20-24 weeks
Energization	Post-clearance

📅 Best Practices to Avoid Delays

• Maintain a central document tracker with submission dates
• Additionally, begin site layout and drawing work parallelly
• Coordinate early with utility engineers
• Avoid low-quality or generic electrical studies

🔗 Internal Linking

• ⚡ Due Diligence Report for EHV Power Supply – Scope of Work & Guidelines
• ⚡ Due Diligence Checklist to Establish a Power-Intensive Project

💬 Final Thoughts

“Adhering to key statutory approvals for power connectivity is not just a formality; it is critical for ensuring safe, reliable, and compliant infrastructure.”

In fact, the Statutory approvals are not just regulatory hurdles; they’re safeguards for a grid-ready and legally compliant infrastructure. Therefore, the earlier they’re integrated into your due diligence process, the smoother your project’s execution.

Need help with your power approvals? Feel free to contact our expert team for end-to-end consultancy.