Power Transmission & Grid
Towers, conductors, transformers, HVDC, smart meters and the utilities that own India's grid
What this is
- Equipment makers (transformers, switchgear, HVDC) hold scarce capacity and pricing power.
- Line EPC firms have record order books but thin margins; execution decides returns.
- Utilities and InvITs earn 35-year regulated or bid-fixed tariffs: steady but rate-sensitive.
Why now
- The grid plan needs ~₹9.15L Cr of spend by FY32 to connect 500 GW of non-fossil capacity.
- 6,108 ckm of lines added in H1 FY27, more than double H1 FY26 (CEA data).
- Transformers are the bottleneck; two ±800 kV HVDC links (2024, Sep 2026) are in order books.
What to watch
- CEA monthly line (ckm) and substation (MVA) additions vs target
- ISTS awards under TBCB: number of schemes, winners and bid tariffs (PFCCL / RECPDCL)
- Transformer and HVDC order inflow and backlog (Hitachi Energy, GE Vernova T&D, TARIL)
- RDSS smart meters installed vs sanctioned (Ministry of Power)
- CRGO import prices and DGTR's anti-dumping case on electrical steel
- CERC market-coupling regulations and IEX market share
Major areas
The map groups the anatomy into these areas before you drop into individual components.
Lines & cables
Towers, conductors, line hardware and underground cables that carry power over long distances and into cities - the biggest share of grid capex by value.
Substation equipment
Power transformers, reactors, gas-insulated switchgear and protection that step voltage up and down and keep the grid safe - where capacity is tightest.
HVDC & green corridors
High-voltage DC links and FACTS devices that move bulk renewable power from Rajasthan, Gujarat and Ladakh to demand centres with lower losses.
Distribution & metering
Smart meters and the AMISP contracts that let discoms bill, cut losses and move to prepaid - funded by the Revamped Distribution Sector Scheme (RDSS).
Metals & electrical steel
Aluminium rod, copper and CRGO electrical steel - the raw materials that set the cost of conductors, cables and transformers.
Grid owners, markets & finance
Transmission utilities and InvITs that own the assets, the exchanges and traders that sell power across the grid, and the state lenders that fund it.
Transmission utilities
They own and run the grid: utilities and InvITs that win projects under tariff-based bidding or regulated returns, buy the towers, conductors and transformers, and earn a fixed annual tariff for 35 years once lines are charged.
Power Grid Corporation of India
ListedState transmission utility owning most of India's inter-state grid; winner of the largest share of TBCB projects (also in Nifty 50)
Adani Energy Solutions
ListedIndia's largest private transmission company, a Mumbai discom and an AMISP smart-meter business
Tata Power
ListedIntegrated power company with Mumbai transmission, the Powerlinks JV, TBCB wins and Odisha/Delhi discoms (also in energy, solar and EV sectors)
IndiGrid (India Grid Trust)
ListedIndia's first power-transmission InvIT, sponsored by KKR, owning inter-state lines, substations, solar and battery assets
PowerGrid Infrastructure Investment Trust
ListedPOWERGRID-sponsored InvIT owning five inter-state transmission projects
Resonia (formerly Sterlite Power's transmission business)
UnlistedUnlisted private transmission developer that builds TBCB projects and sells finished ones to InvITs
Potential bottlenecks
- Few vertical continuous-vulcanisation (VCV) lines for 220-400 kV in IndiaHV & EHV underground cables
- Long utility and EPC qualification timesHV & EHV underground cables
- Copper and XLPE compound supplyHV & EHV underground cables
- HTLS and composite-core technology is held by few makersConductors & line hardware
- Aluminium rod supply concentrated in Vedanta, Hindalco and NALCOConductors & line hardware
- Type tests and utility approvals for new conductor designsConductors & line hardware
- Right-of-way: farmers' compensation disputes and forest clearances delay many ISTS linesTowers & line EPC
- Skilled gangs for stringing and erection, especially at 765 kVTowers & line EPC
- Working capital tied up in milestone billing and retention moneyTowers & line EPC
- Equipment lead times (transformers, HVDC) delaying commissioningTransmission utilities & InvITs
- Right-of-way and forest clearancesTransmission utilities & InvITs
- Thin TBCB bid margins as more developers competeTransmission utilities & InvITs
- Transmission congestion splitting the market into price zonesPower markets & grid finance
- Regulatory design of market couplingPower markets & grid finance
- State discom financesPower markets & grid finance
- Consumer resistance to prepaid meters in some statesSmart meters & distribution
- Chips and communication modules (RF mesh, cellular)Smart meters & distribution
- Discom payment discipline on AMISP feesSmart meters & distribution
- CRGO electrical steel: India imports most of its need and supply is gated by BIS certificationPower transformers & reactors
- Test-bay and winding capacity for 765 kV unitsPower transformers & reactors
- Skilled winders and designersPower transformers & reactors
- Only three or four HVDC technology suppliers worldwide, all booked by European offshore-wind and interconnector demandHVDC & FACTS
- Converter-transformer and valve capacityHVDC & FACTS
- Terrain: the Leh-Kaithal (Ladakh) HVDC tender drew a single bidder and POWERGRID is weighing an AC design (FY26)HVDC & FACTS
- SF6 gas phase-out pushing new, costlier designsGIS, switchgear & protection
- Factory slots for 400/765 kV GISGIS, switchgear & protection
- Protection and automation engineersGIS, switchgear & protection
- Domestic CRGO output is a fraction of demand; imports come mostly from Japan, Korea, China and RussiaCRGO, copper & aluminium
- Copper concentrate shortage squeezing custom smeltersCRGO, copper & aluminium
- Power cost for aluminium smeltingCRGO, copper & aluminium
Companies in this theme
49 companies, 44 listed. The 6 transmission utilities are listed above.
KEC International
ListedRPG group EPC major and one of the world's largest transmission-tower builders; T&D is about three-fifths of its order book, alongside civil, railways and cables
Company page →Kalpataru Projects International
ListedEPC group (merged with JMC) with T&D as its largest business, plus buildings, water, railways and oil & gas; owns Linjemontage (Sweden) and Fasttel (Brazil)
Company page →Transrail Lighting
ListedTransmission EPC company that also makes its own towers, conductors and poles; listed in Dec 2024
Company page →Larsen & Toubro
ListedIndia's largest EPC group; its Power Transmission & Distribution business builds substations, lines and grid projects in India and the Gulf (also in the energy sector for generation EPC)
Company page →Skipper
ListedKolkata-based maker of transmission towers, monopoles and telecom structures that also does T&D EPC and runs a PVC-pipe business
Company page →Bajel Projects
ListedBajaj group's power transmission and distribution EPC company, demerged from Bajaj Electricals in 2023, with its own tower plant
Company page →Apar Industries
ListedIndia's largest conductor maker and a major cable and specialty-oil company; makes HTLS, copper and OPGW conductors and sells heavily overseas (also in data-centre and solar sectors)
Sterlite Electric (formerly Sterlite Power's products business)
UnlistedUnlisted maker of overhead conductors, OPGW and EHV cables, split from the Resonia transmission developer in 2025
Gupta Power Infrastructure
UnlistedUnlisted Odisha-based maker of conductors, cables and wires
Diamond Power Infrastructure
ListedGujarat conductor and power-cable maker revived after insolvency by the GSEC group
Karamtara Engineering
ListedMaker of transmission-line hardware, fasteners and tower parts, and of solar mounting structures (also in the energy and solar sectors)
Company page →KEI Industries
ListedCable maker with one of India's largest EHV (up to 400 kV) cable businesses, plus HT/LT cable and wires (also in real estate and data-centre sectors)
Company page →Polycab India
ListedIndia's largest wires and cables maker, expanding into EHV cable and taking power-distribution and BharatNet EPC work (also in real estate and data-centre sectors)
Company page →Universal Cables
ListedMP Birla group maker of EHV and HV power cables (up to 400 kV) and capacitors, Satna (MP)
Company page →Genus Power Infrastructures
ListedIndia's largest smart-meter maker and an AMISP for discoms under RDSS (AMISP arm co-owned with GIC)
Company page →HPL Electric & Power
ListedMeter and switchgear maker supplying smart meters to AMISPs and discoms, plus lighting and wires
Company page →Techno Electric & Engineering
ListedSubstation and transmission EPC company that became a smart-meter AMISP and is building data centres
Company page →IntelliSmart Infrastructure
UnlistedUnlisted AMISP joint venture of EESL and NIIF, among the largest smart-meter rollouts in India
Hitachi Energy India
ListedIndian arm of Hitachi Energy (ex-ABB Power Grids): power transformers, HVDC, GIS, grid automation and power quality - the broadest grid-equipment maker in India (also in the data-centre sector)
GE Vernova T&D India
ListedIndian arm of GE Vernova's grid business: power transformers, GIS, HVDC and grid automation
Zetwerk Manufacturing Businesses
ListedContract manufacturer making transformers and power equipment alongside solar structures (listed Oct 2026; also in solar)
Company page →Transformers & Rectifiers (India)
ListedAhmedabad maker of power transformers up to 1,200 kV, furnace and rectifier transformers and reactors (also in the data-centre sector)
Company page →Siemens Energy India
ListedSiemens Energy's Indian arm, demerged from Siemens Ltd and listed in Jun 2025: power transformers, HVDC, switchgear and turbines (also in the energy sector)
Company page →CG Power and Industrial Solutions
ListedMurugappa group maker of power transformers, switchgear and industrial motors, also building an OSAT chip plant (also in railways, data-centre and semiconductor sectors)
Voltamp Transformers
ListedVadodara maker of power and distribution transformers up to 220 kV, mostly for industrial and utility customers
Company page →Shilchar Technologies
ListedGujarat maker of power and distribution transformers with a large export business
Company page →Atlanta Electricals
ListedGujarat (Anand) maker of power, auto and inverter-duty transformers for utilities and renewable plants; listed Sep 2025
Company page →Mangal Electrical Industries
ListedJaipur company that processes CRGO steel into transformer laminations and cores, and makes transformers and does substation EPC; listed Aug 2025
Quality Power Electrical Equipments
ListedSangli maker of reactors, HVDC and FACTS components and transformers for grid operators worldwide; listed Feb 2025
Company page →Bharat Heavy Electricals
ListedState engineering major; HVDC consortium partner with Hitachi Energy, plus power transformers and substations (also in energy, railways and naval sectors)
Company page →Siemens
ListedSiemens Ltd after the 2025 energy demerger: smart infrastructure (GIS, switchgear, substation automation), digital industries and mobility (also in the railways sector)
Company page →ABB India
ListedMedium- and low-voltage switchgear, distribution automation, drives and robotics (ABB's high-voltage grid business is now Hitachi Energy) (also in data-centre and railways sectors)
Company page →Schneider Electric Infrastructure
ListedSchneider's listed Indian arm making distribution transformers, MV switchgear and grid automation (also in the data-centre sector)
Company page →Hindalco Industries
ListedAditya Birla aluminium and copper major: supplies aluminium rod for conductors and copper rod for windings and cables (also in Nifty 50, electronics and critical-minerals sectors)
Company page →Vedanta Aluminium Metal
ListedIndia's largest aluminium producer (Jharsuguda, BALCO), demerged from Vedanta and listed on 15 Jun 2026; a major supplier of aluminium wire rod to conductor makers
Company page →National Aluminium Company (NALCO)
ListedState aluminium and alumina producer selling wire rods and EC-grade metal to conductor makers (also in the critical-minerals sector)
Company page →Hindustan Copper
ListedState-owned, India's only integrated copper miner - copper for windings and cables starts here (also in the critical-minerals sector)
Company page →JSW Steel
ListedSteel major whose 50:50 JV with JFE Steel (JSW JFE Electrical Steel) is India's only CRGO producer (also in Nifty 50 and real-estate sectors)
Company page →Indian Energy Exchange
ListedIndia's largest power exchange, with the dominant share of day-ahead, real-time and green power trading
Company page →PTC India
ListedIndia's largest power trader, buying and selling power across states and with neighbouring countries
Company page →REC
ListedState lender to power utilities and a nodal agency for RDSS; its REC Power Development & Consultancy arm runs TBCB bids and incubates project SPVs
Company page →Power Finance Corporation
ListedState power lender and REC's parent; its PFC Consulting arm is a bid-process coordinator for ISTS TBCB projects
Company page →Grid Controller of India (Grid-India)
UnlistedUnlisted state system operator that schedules and dispatches power on the national grid; proposed market-coupling operator
Common questions
Which listed companies are in India's Power Transmission & Grid supply chain?
NextResearch maps 44 listed companies across 10 layers of the Power Transmission & Grid supply chain. The largest with high exposure, by market cap as of 6 Nov 2026: Power Grid Corporation of India (₹2.42L Cr); Adani Energy Solutions (₹1.78L Cr); Hitachi Energy India (₹1.24L Cr); GE Vernova T&D India (₹1.03L Cr); and Siemens Energy India (₹99,971 Cr).
What are the layers of the Power Transmission & Grid supply chain?
10 layers: HV & EHV underground cables; Conductors & line hardware; Towers & line EPC; Transmission utilities & InvITs; Power markets & grid finance; Smart meters & distribution; Power transformers & reactors; HVDC & FACTS; GIS, switchgear & protection; and CRGO, copper & aluminium.
Who are the end players in Power Transmission & Grid?
In the Transmission utilities & InvITs layer: Power Grid Corporation of India, Adani Energy Solutions, Tata Power, IndiGrid (India Grid Trust), PowerGrid Infrastructure Investment Trust and Resonia (formerly Sterlite Power's transmission business) (not NSE-listed).
What are the bottlenecks in India's Power Transmission & Grid supply chain?
HV & EHV underground cables: Few vertical continuous-vulcanisation (VCV) lines for 220-400 kV in India. Conductors & line hardware: HTLS and composite-core technology is held by few makers. Towers & line EPC: Right-of-way: farmers' compensation disputes and forest clearances delay many ISTS lines. Transmission utilities & InvITs: Equipment lead times (transformers, HVDC) delaying commissioning. More by layer on this page.