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High-voltage air-insulated substation with steel lattice gantries and bus structures at dusk
Pan-India Electrical Contracting Company

SREE ENGINEERING

Smart Power Management Systems.

// FROM 400 KV SUBSTATIONS TO LT DISTRIBUTION — ONE ACCOUNTABLE PARTNER

An external electrical contracting company delivering GIS and AIS substations, transmission and distribution networks, and complete external power infrastructure — every voltage class, one accountable contract.

400KV–LT
Complete Voltage Range
PAN-INDIA
Project Execution
23+
Years Founder Experience

Pan-India Execution

Projects delivered across India — from our engineering base in Hyderabad

Full Voltage Spectrum

400 KV extra-high-voltage infrastructure down to LT distribution, under one contract

GIS + AIS Substations

Both gas-insulated and air-insulated substation environments, 11 KV to 400 KV

23+ Years, Field-Rooted

Founder-led practice shaped on live sites, not in a management layer

01 — The Complete Voltage Chain

Every voltage class. One contractor.

Whatever your project touches — transmission, sub-transmission, distribution or utilisation — the accountability stays with a single contractor.

400KVTransmission EHV
220KVEHV Network
132KVHigh Voltage
33KVSub-Transmission
11KVDistribution HT
LTUtilisation

From 400 KV substation infrastructure to the last LT distribution board — we undertake the complete chain, including everything in between.
One scope, one contract, one responsible contractor.

02 — What We Deliver

Ten disciplines. One engineering practice.

The full scope of external electrical infrastructure — detailed service by service on our Services page.

S/01Substation Works — AIS & GIS

Complete yard build, equipment erection and commissioning in both air-insulated and gas-insulated environments.

11–400 KVAIS · GIS

S/02Transformer Works

Receipt-to-energization transformer packages — unloading, erection, oil handling, connection, testing and commissioning.

Up to 400 KV classPower · Distribution

S/03Overhead Line Works

Towers, poles, conductors and stringing — HT and EHV line infrastructure built for the grid it feeds.

11–400 KVTowers · Stringing

S/04HT & LT Installations

Networks, panels, cabling and distribution — from the utility meter to the final load point.

HT · LTPanels · Switchgear

S/05Cable Systems

Underground HT/LT cabling — trenching, laying, jointing, termination and tray systems built for their environment.

UndergroundJointing · Termination

S/06External Electrification

Turnkey scope of everything outside the building envelope — networks, substations, lighting and earthing as one package.

TurnkeySingle Contract
03 — Substation Environments

Both worlds of high voltage.

Substation technology is a site decision — we execute in either world, at any voltage class.

Compact enclosed switchgear environment typical of GIS installations
COMPACT · ENCLOSED

GIS Substations

Gas-insulated switchgear for space-constrained urban sites — sealed, metal-clad bays in a fraction of the footprint.

Open-yard air-insulated substation with transmission structures
OPEN-YARD · PROVEN

AIS Substations

Air-insulated yards — steel structures, busbars and isolators in the classic open layout, from 11 KV to 400 KV.

Not sure which fits your site? We help you weigh footprint, environment and lifecycle cost — see the GIS vs AIS comparison.

04 — Why SREE ENGINEERING

Three reasons clients stay with us.

01

One Accountable Contract

From civil foundations to final energization, the entire voltage chain sits with one contractor — no gaps between vendors, no finger-pointing on site.

02

Field-Rooted Engineering

23+ years of founder-led experience means decisions are made by people who have actually energized infrastructure — not just quoted it.

03

Compliance as Default

Safety, statutory and utility standards built into the workflow — compliance isn't an afterthought, it's the baseline.

05 — Industries We Support

Built for the sectors that depend on reliable power.

From pharma corridors to utility networks across India — the sectors we serve, and what we deliver in each.

Power utilities and transmissionPower & Utilities
Pharmaceutical and life sciences facilitiesPharma & Life Sciences
Commercial real estate and townshipsReal Estate & Townships
Industrial and warehousing facilitiesIndustrial & Warehousing
Public infrastructure and roadsInfrastructure & Roads
Solar and renewable energy plantsRenewables & Solar
// READY WHEN YOU ARE

Whatever the voltage class, start with a conversation.

Tell us the voltage, the scope and the site — we'll come back with a structured engineering approach.