CTU | Central Transmission Utility of India Limited

Ministry of Power, GOI vide Gazette Notification dated 09.03.2021 has notified Central Transmission Utility of India Limited (CTUIL), a Government Company as Central Transmission Utility. Accordingly, CTUIL has started functioning w.e.f 01.04.2021 as wholly owned subsidiary of POWERGRID to undertake and discharge all functions of CTU under the Electricity Act, 2003 and functions assigned under regulations/directions by Central Commission/Authority and also any other directions/functions assigned by the Central Government. CTU has been assigned the responsibility of undertaking transmission of electricity through inter-state transmission system and...

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Planning

CTU has been assigned the responsibility of undertaking...
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Communication & Metering

Communication System has a vital role for safe...
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Open Access

CTU is the nodal agency for grant of...
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BCD

CERC notified the Central Electricity Regulatory Commission (Sharing...
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Engineering

Engineering Department provides Estimated Cost of the Transmission...
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TBCB

CTU is the Nodal Agency for administration of...
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Gati shakti

PM GatiShakti National Master Plan was launched on...
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Project Monitoring

Upcoming Inter-State Transmission System (ISTS) and associated Generation...
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BPC

“Bid Process Coordinator (BPC) of the TBCB project...

ISTS Network

As on date : 31st Aug' 2026

India

315
Substations (No.)
612580
Transformation Capacity (MVA)
218199
Transmission Line (CKM)
1,20,340
Inter Region Capacity

North-Eastern Region

27
Substations (No.)
9620
Transformation Capacity (MVA)
11689
Transmission Line (CKM)

Northern Region

105
Substations (No.)
217690
Transformation Capacity (MVA)
65975
Transmission Line (CKM)

Eastern Region

52
Substations (No.)
71350
Transformation Capacity (MVA)
33250
Transmission Line (CKM)

Western Region

67
Substations (No.)
209335
Transformation Capacity (MVA)
66240
Transmission Line (CKM)

Southern Region

67
Substations (No.)
104585
Transformation Capacity (MVA)
41046
Transmission Line (CKM)

ISTS Schemes

As on date : 31st Aug' 2026

Under Approval

14

Schemes
18,020

CKM
1,22,500

MVA

Under Bidding

23

Schemes
14,068

CKM
1,44,030

MVA

Under Construction

244

Schemes
44,094

CKM
4,64,372

MVA

Dedicated towards Green Energy

CTUIL as an organization strives to enforce an ecosystem which will boost the renewable energy sector. CTU is dedicated towards facilitating integration of renewable energy sources with the grid in line with vision of Hon’ble Prime minister for achieving targets of renewable energy integration and reduction of carbon footprint. CTU facilitates ease of access of information to generation developers through single window portals line NSWS besides readily available information pertaining to upcoming transmission system for facilitation of RE injection, bay availability and margin.

Transmission system planned in consultation with stakeholders facilitating evacuation of power from 172.5 GW of RE generating capacity (including large hydro), which is about 41% of the total installed electricity generating capacity in the country.

As a significant step towards successfully achieving the planned RE capacity by 2030, transmission system has been planned for about 537 GW of RE capacity.

Helpdesks created from time to time for helping developers understand new regulations, procedure and portals.

The length of the transmission lines and sub-station capacity planned under ISTS for integration of additional wind and solar capacity by 2030 has been estimated as 50,890 ckm and 4,33,575 MVA respectively at an estimated cost of Rs 2,44,200 crores.

Transmission system planned in consultation with stakeholders facilitating evacuation of power from 172.5 GW of RE generating capacity (including large hydro), which is about 41% of the total installed electricity generating capacity in the country.

As a significant step towards successfully achieving the planned RE capacity by 2030, transmission system has been planned for about 537 GW of RE capacity.

Helpdesks created from time to time for helping developers understand new regulations, procedure and portals.