Industrial Engineering

Grid Interconnection & Substations for Solar & Wind

110kV & 66kV pooling substations, solar park grid evacuation & renewable IPP power integration.

Discuss Your Project Explore Capabilities
110kV
Highest Substation Class
Solar & Wind Pooling
66kV
Grid Export Voltage
Avanti Hausdurga Project
IPP
Independent Power Producers
Utility Scale Projects
Grid Code
State Transmission
Full Regulatory Approval
Industry Engineering Overview

High-Voltage Pooling Substations & Utility Grid Evacuation up to 110kV

Renewable energy IPP developers scrutinize substation voltage class and grid code compliance above all else. Power evacuation requires robust, fault-tolerant 110kV and 66kV pooling substations capable of meeting strict state transmission utility grid codes. DEC's renewable portfolio includes 110kV and 66kV grid pooling switchyards for solar and wind IPP leaders — such as Mayfair Renewable Energy (110kV RON project), Avanti Solar Energy (110kV Shigaon project), and Avanti Renewable Energy (66kV Hausdurga project).

Process Electrification & System Architecture

110kV / 66kV Pooling Substations

Outdoor AIS switchyards with power transformer bays, LA protection, and SCADA monitoring.

Solar Inverter Duty Transformers

Step-up transformer stations connecting inverter outputs to internal 33kV collection networks.

Transmission Line Interconnection

High-voltage overhead line bays, ABT metering, and STU utility inter-tripping protection.

Grid Code Compliance & Control

Power factor control, VAR management, and remote RTU integration for state load dispatch centres (SLDC).

Technical Parameters & Design Standards

Substation Voltage Ratings 33kV / 66kV / 110kV Outdoor AIS
Grid Protection Standard Numeric Distance & Differential Relays (IEC 61850)
Metering Class 0.2S Class ABT Main & Check Metering
Cable Infrastructure POLYVION Solar XLPE & HT Armoured Cables

Prominent Client Partners in this Sector

Avanti Solar Energy Pvt Ltd Mayfair Renewable Energy Avanti Renewable Energy

DEC Engineering Scope

  • ✓ 110kV & 66kV High Voltage Solar & Wind Grid Evacuation Switchyards
  • ✓ Power Transformer Erection, Oil Testing, NIFPS & Protection Integration
  • ✓ 0.2S Class ABT Tariff Metering & STU Utility Bay Approvals
  • ✓ IEC 61850 Substation Automation System (SAS) & SLDC Telemetry
  • ✓ POLYVION 33kV Underground Solar Cable Collection Networks
  • ✓ Complete Erection, Testing, Commissioning & CEIG Approvals

Developing a Solar or Wind IPP Project?

Send us your grid interconnection point voltage and capacity — our team reviews STU grid code compliance.

Request Technical Proposal

110kV & 66kV Substation EPC for Renewable IPPs

Partner with DEC for high-voltage grid pooling switchyards, STU metering approvals, and rapid project commissioning.

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