MAHASTU

Maharashtra Transmission Networks

All MAHARASHTRA

55977

Transmission Lines (CKM)
789

Sub-Stations
(Nos.)
160820

Transformation Capacity (MVA)
99.65

System Availability (%)

Licensees Overview

Adani Electricity Mumbai Limited (AEML)

572

Transmission Lines (CKM)
8

Sub-Stations
3250

Transformation Capacity (MVA)

Jaigad Power Transmission Co.Ltd. (JPTL)

330

Transmission Lines (CKM)
1

Sub-Stations
0

Transformation Capacity (MVA)

Adani Transmission India Ltd (ATIL)

436

Transmission Lines (CKM)
0

Sub-Stations
0

Transformation Capacity (MVA)

Amravati Power Transmission Co. Ltd. (APTCL)

220

Transmission Lines (CKM)
1

Sub-Stations
0

Transformation Capacity (MVA)

Sinner Power Transmission Co. Ltd (SPTCL)

104

Transmission Lines (CKM)
1

Sub-Stations
0

Transformation Capacity (MVA)

Maharashtra Eastern Grid Power Transmission Co. Ltd. (MEGPTCL)

1220

Transmission Lines (CKM)
3

Sub-Stations
6000

Transformation Capacity (MVA)

Vidharbha Industries Pvt. Ltd. (VIPL)

6

Transmission Lines (CKM)
1

Sub-Stations
0

Transformation Capacity (MVA)

Kharghar- Vikhroli Transmission Ltd. (KVTL)

43

Transmission Lines (CKM)
1

Sub-Stations
1500

Transformation Capacity (MVA)

Tata Power Company Ltd (TPCL)

1213

Transmission Lines (CKM)
25

Sub-Stations
10422

Transformation Capacity (MVA)

Maharashtra State Electricity Transmission Company (MSETCL)

51833

Transmission Lines (CKM)
748

Sub-Stations
139648

Transformation Capacity (MVA)

MUML Ltd.

0

Transmission Lines (CKM)
0

Sub-Stations
0

Transformation Capacity (MVA)

Our Functions

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RE Section

The Renewable Energy Section in the State Transmission Utility (STU) oversees the integration of sustainable energy sources such as solar, wind, and hydro into the InSTS Network. It ensures the reliable transmission of power while enhancing grid stability and performance.

Additionally, this section drives innovation and spearheads the expansion of renewable energy projects across the state.

Regulatory & Commercial Section

Regulatory & Commercial section engages with GOM’s energy department, Distribution and Transmission Licensees of Maharashtra etc. on regulatory issues, orders & policies in compliance with MERC/CERC. It also facilitates grant of non-discriminatory open access/ GNA to InSTS.

It ensures implementation of billing, collection and disbursement mechanism of Transmission Charges as per MERC Orders. Filing of Petitions/ Appeals/Replies before Hon MERC/CERC/APTEl/Supreme Court/High Court/NCLT etc.

TBCB Section

The Indian Electricity Act, 2003 has mandated for development of a transmission system through Tariff Based Competitive Bidding (TBCB) mode for encouraging competition and for creating electricity markets. Further, Ministry of Power has issued guidelines for development of projects through TBCB mode and Maharashtra Electricity Regulatory Commission in MERC (Multi Year Tariff) Regulations, 2024 has laid down Threshold limit and other conditions for development of projects for Intra-State Transmission System through Tariff Based Competitive Bidding.

Monitoring Section

The Government of Maharashtra (GOM) is developing an Energy Transition Blueprint in collaboration with public and private entities. To support this, the State Transmission Utility (STU) is implementing a Centralized Monitoring System to:

1. Single, consolidated view of all ongoing projects.

2. Issue identification and Resolution.

3. Data Integration and Analysis.

4.Performance tracking / Performance Reporting.

5.Accountability and Transparency.

6.Communication and Coordination.

This system will accelerate transmission infrastructure development and support Maharashtra’s energy transition.

System Study Section

Transmission planning is based on key power system studies, including:

1. Power Flow Studies – Analyze steady-state conditions to determine transmission loading and optimize system operation.

2. Short Circuit Studies – Assess fault levels using classical methods for three-phase and single-phase faults.

3. Stability Studies – Evaluate system equilibrium and response to disturbances to ensure reliable operation.

4. TTC/ATC Calculations – Determine Total Transfer Capability (TTC), Available Transfer Capability (ATC), and Transmission Reliability Margin (TRM) for future load and generation scenarios.

These studies help in efficient planning, stability assessment, and optimal utilization of transmission infrastructure.

Planning Section

As per Section 39 of the Electricity Act, 2003, “Planning, coordination, development and undertaking transmission of electricity through intra-state system is to be done by the Planning section under State Transmission Utilities”.

Planning section (STU) prepares a transmission system plan based on the data obtained from the Users and internal sources for :

a) Short term period, i.e., up to 3 years;

b) Medium term period, i.e., up to 5 years;

c) Long term period, i.e., up to 10 years.