Infrastructure Delivered at Scale

Mission-critical power infrastructure executed across substations, transmission systems, renewable energy environments, and utility-scale EPC projects.

Ayyappan & Co has delivered infrastructure projects across high-voltage substations, transmission corridors, renewable energy integration systems, testing & commissioning environments, and long-term operation & maintenance programmes across India and Saudi Arabia — reflecting engineering precision, operational accountability and disciplined project delivery.

30+

Years Experience

1500+ KM

Transmission Lines

400kV

Infrastructure Expertise

600+ MW

Renewable O&M

300+

Skilled Workforce

India · KSA

Cross-Border Presence

— Portfolio

Explore Our Infrastructure Projects

A curated portfolio of substation, transmission, renewable and EPC projects executed across India and Saudi Arabia.

Raigarh–Pugalur HVDC Corridor

Location

India

Voltage

765 kV HVDC

Scope

765kV transmission infrastructure

Virudhunagar 765/400kV Substation

Location

Tamil Nadu, India

Voltage

765 / 400 kV

Scope

EHV substation execution

400kV Quad DC Transmission Line

Location

India

Voltage

400 kV

Scope

High-voltage transmission corridor

110/33kV Pooling Substation — Siruganur

Location

Tamil Nadu, India

Voltage

110 / 33 kV

Scope

Solar pooling substation

110kV UG Cable Works — Adhavan Solar

Location

Tamil Nadu, India

Voltage

110 kV UG

Scope

Underground cable infrastructure

Renewable Energy Grid Integration

Location

India

Voltage

Utility Scale

Scope

Solar evacuation systems

Testing & Commissioning — Utility Infrastructure

Location

India

Voltage

Up to 765 kV

Scope

Relay testing, energisation, and

Solar O&M Infrastructure Support

Location

India

Voltage

600+ MW

Scope

Long-term renewable infrastructure

Virudhunagar 765/400kV Substation

Location

Tamil Nadu, India

Voltage

765 / 400 kV

Scope

EHV substation execution

Raigarh–Pugalur HVDC Corridor

Location

India

Voltage

765 kV HVDC

Scope

765kV transmission infrastructure

400kV Quad DC Transmission Line

Location

India

Voltage

400 kV

Scope

High-voltage transmission corridor

110/33kV Pooling Substation — Siruganur

Location

Tamil Nadu, India

Voltage

110 / 33 kV

Scope

Solar pooling substation

Renewable Energy Grid Integration

Location

India

Voltage

Utility Scale

Scope

Solar evacuation systems

Testing & Commissioning — Utility Infrastructure

Location

India

Voltage

Up to 765 kV

Scope

Relay testing, energisation, and commissioning

Solar O&M Infrastructure Support

Location

India

Voltage

600+ MW

Scope

Long-term renewable infrastructure

110kV UG Cable Works — Adhavan Solar

Location

Tamil Nadu, India

Voltage

110 kV UG

Scope

Underground cable infrastructure

— Capability

Execution Capability Built Through Infrastructure Delivery

Our infrastructure capability is built through disciplined project execution across substations, transmission systems, renewable integration, EPC delivery, testing & commissioning, and long-term operational support.

30+

Years Infrastructure Experience

1500+

KM Transmission Infrastructure

600+

MW Renewable O&M

400 kV

Execution Expertise

300+

Skilled Workforce

2

Country Operations · India & KSA

— Framework

A Structured Infrastructure Delivery Framework

01

Engineering Coordination

02

Procurement & Mobilisation

03

Infrastructure Execution

04

Testing & Commissioning

05

Compliance & Approvals

06

Operational Readiness

07

Lifecycle Support

— Industries

Supporting Critical Infrastructure Sectors

Power Utilities

Sector 01

Renewable Energy Developers

Sector 02

Transmission Utilities

Sector 03

Industrial Infrastructure

Sector 04

Government Infrastructure

Sector 05

Independent Power Producers

Sector 06

EPC Contractors

Sector 07

Utility Infrastructure Operators

Sector 08

— Partners

Trusted Across Utility and Infrastructure Ecosystems

TNEB

TN - Highways Department

PowerGrid

JSW

BHEL

L&T

SterlitePower

NLC India

— Insights

Insights from Infrastructure Execution

Explore perspectives on substations, renewable integration, transmission systems, testing & commissioning, and utility-scale infrastructure delivery.

— Engage

Let's Build Mission-Critical Infrastructure Together

Connect with Ayyappan & Co to discuss substations, transmission systems, renewable energy infrastructure, EPC execution, testing & commissioning, and long-term infrastructure support.