At Mettle Electricals, we deliver complex high-voltage infrastructure across India: from 33kV to 220kV EHV Transmission Lines & Substation Bays (AIS & GIS), to high-capacity underground cable networks and mission-critical statutory grid sanctions.
Maximum System Voltage
Grid Evacuation Handled
Largest PTR Bay Executed
Statutory Sanction SLA
Specialized turnkey capability spanning air-insulated, gas-insulated, underground, and utility-scale power systems.
Turnkey engineering, procurement, line proofing, and erection of 11kV, 22kV, and 33kV switchyard bays, express overhead feeders, and transformer feeder bays.
Air Insulated Substation (AIS) switchyard engineering, structural gantry fabrication, busbar stringing, CT/PT/Isolator bay installation, and SLDC telemetry synchronization up to 220kV.
High-density Gas Insulated Substation (GIS) bays, SF6 gas circuit breaker erection, compact cable sealing ends, and heavy industrial infeed integrations with zero footprint waste.
Substation modernization, bay extension, transformer capacity augmentation up to 100 MVA, retrofitting numerical protection schemes, and Discom/Transco utility line revamping.
Extra-high-voltage XLPE insulated underground power cable laying, trenching, horizontal directional drilling (HDD), cable jointing, GIS terminations, and sheath voltage testing.
Key substation, transmission, cable, and statutory clearance assignments completed for prominent industrial and government clients.
IDSL • Aviation
Comprehensive turnkey design, bay integration, and transmission feed infrastructure for the 33kV dedicated power substation serving the international airport facility.
Hitech • HPCL
High-security underground power cable trenching, route proofing, and specialized cable laying connecting heavy refinery infrastructure under demanding corridor conditions.
Bhagyalaxmi
State-of-the-art 132kV Gas Insulated Substation (GIS) bay installation, SF6 bus duct routing, and grid infeed engineering tailored for heavy metallurgical melting operations.
SRJ Group
High-voltage gas-insulated substation execution ensuring uninterrupted, harmonic-resistant electrical infeed for steel rolling mills and electric arc furnace operations.
Sterlite Power
Dual-transformer Air Insulated Substation (AIS) switchyard layout, civil foundations, gantry assembly, transformer bay erection, and complete SLDC integration.
Mahagenco
Comprehensive revamping and modernization of existing Maharashtra State Power Generation (Mahagenco) 132kV substation bay, breaker retrofits, and protection overhaul.
SIEMENS
Turnkey switchgear revamping, protection scheme upgrades, and bay engineering executed for Reliance Industries Limited under Siemens consortium standards.
Samvijay
Extra-heavy electrical engineering for a 100 MVA Power Transformer (PTR) bay, high-capacity busbar installation, surge protection, and transmission interlock systems.
Statutory
Complete end-to-end statutory liaison: CEI Form A/B safety verification, MSETCL synchronization sanction, and official charging clearance for 2 × 15 MVA transformers.
JSW Group
Massive 220 kV extra-high-voltage power evacuation sanction, system load flow approval, and multi-agency regulatory liaison for dual 50 MVA transformer infrastructure (100 MVA total).
MSEDCL Grid EPC
Complete pre-construction due diligence, route proofing, ROW highway crossing sanctions, and CEI safety charging permits for a 33kV dedicated transmission line and switchyard.
Critical life-safety power clearance for a regional cancer hospital: 33kV express feeder sanction plus statutory CEI inspection and charging approvals for two 2 MW backup DG sets (4 MW total).
Our project consultants and liaison engineers work alongside India's foremost EPCs, utilities, and conglomerates.
EHV Substation Revamping
132kV Substation Modernization
Underground Cable Network
220kV Grid Sanction (100 MVA)
132kV AIS Substation & Bay
Utility Substation Revamping
33kV Airport Substation Bay
132kV GIS Substation
132kV GIS Bay & Line
100 MVA PTR Substation Bay
EHV State Grid Approvals
DISCOM Sanction & Liaison
Leverage our proven track record across 33kV to 220kV projects. Connect directly with our Senior Project Management Consultants at our Chhatrapati Sambhajinagar Headquarters.