**Executive Summary**
This document is an answer given in the Lok Sabha on 18.12.2025 by the Minister of Power, addressing questions regarding the total installed power generation capacity, its grid-readiness, under-utilization, and timelines for transmission infrastructure completion. It provides details on the current installed capacity, electricity generation by source, and plans for transmission infrastructure development, with projects expected to be completed by 2031.
**Key Points / Main Content**
* **Installed Power Generation Capacity**
* The total installed power generation capacity in India is 5,05,023 MW.
* This comprises 2,45,600 MW from fossil fuel sources and 2,59,423 MW from non-fossil fuel-based sources.
* This installed capacity is grid-connected and generation-ready.
* **Electricity Generation (April 2025 - October 2025)**
* 7,52,583 MU generated from Fossil Fuel, accounting for 68.2% of total generation.
* 3,51,405 MU generated from Non-Fossil Fuel, accounting for 31.8% of total generation.
* Total electricity generated is 11,03,988 MU.
* **National Transmission Grid**
* The National Transmission Grid accommodates integration of generation capacity, including Renewable Energy.
* Temporary General Access Network (GNA) provides for evacuation of 12,407 MW of power through existing Inter-State Transmission System (ISTS).
* Locations with temporary GNA: Gujarat (5,370 MW), Rajasthan (4,088 MW), and Karnataka/Tamil Nadu (2,949 MW).
* **Transmission System Development**
* Transmission systems are planned in advance and implemented to align with capacity addition.
* The National Grid is being continuously strengthened.
* 234 Inter-State Transmission System projects, capable of evacuating approximately 203 GW of generating capacity, are under implementation.
* These projects are planned to be commissioned progressively by 2031.
**Impact Analysis**
**Power Generation Companies**
* **Impact:** Their power generation is being integrated into the National Grid.
* **Action Required:** Align generation projects with the planned transmission infrastructure development.
**National Grid Operators**
* **Impact:** Responsible for maintaining and strengthening the transmission grid.
* **Action Required:** Continue to strengthen the National Grid and complete ongoing ISTS projects by 2031.
**States (Specifically Gujarat, Rajasthan, Karnataka, Tamil Nadu)**
* **Impact:** Affected by the temporary GNA for power evacuation.
* **Action Required:** No specific action mentioned in this document.
**Consumers**
* **Impact:** Relies on the reliable and optimal power supply across regions, as ensured by the transmission infrastructure development.
* **Action Required:** No specific action mentioned in this document.
Key Entities Referenced
Ministry of Power: The primary ministry responsible for addressing the power supply to the National Grid.
National Transmission Grid: The interconnected power transmission network that integrates generation capacity across the country.
Inter-State Transmission System (ISTS): The network of transmission lines that facilitates the transfer of electricity between states.
General Access Network (GNA): The mechanism for granting access to the Inter-State Transmission System (ISTS) for power evacuation.
Gujarat/Rajasthan/Karnataka/Tamil Nadu: States mentioned with respect to location of capacity.
GOVERNMENT OF INDIA
MINISTRY OF POWER
LOK SABHA
UNSTARRED QUESTION NO.3184
ANSWERED ON 18.12.2025
POWER SUPPLY TO NATIONAL GRID
3184. SHRI JASHUBHAI BHILUBHAI RATHVA:
Will the Minister of POWER
be pleased to state:
(a) the current total installed power generation capacity in the country along with the
latest available figures indicating the respective shares of fossil fuel-based and non-
fossil fuel-based sources;
(b) the portion of this installed capacity that is presently generation-ready and capable
of supplying power to the national grid together with the criteria used to determine grid-
readiness;
(c) whether the quantum of installed generation capacity remains unutilised or under-
utilised due to the absence or inadequacy of transmission infrastructure, if so, the
details thereof, State wise; and
(d) the timelines proposed by the Government for completing the transmission
infrastructure necessary to ensure timely evacuation, grid integration and optimal
utilisation of power across all regions of the country?
A N S W E R
THE MINISTER OF STATE IN THE MINISTRY OF POWER
(SHRI SHRIPAD NAIK)
(a) & (b): The total installed power generation capacity in the country stands at
5,05,023 MW, comprising 2,45,600 MW from fossil fuel sources and 2,59,423 MW from
non-fossil fuel-based sources. The installed capacity has been commissioned in
accordance with applicable technical standards, is grid-connected and generation
ready. It is capable of injecting power into the National Grid, subject to prevailing
system conditions. Details of electricity generated from various sources during the
period from April, 2025 to October, 2025 are given in the table below:
Category Installed % Share in Electricity % Share in
Capacity Installed Capacity Generated (April, Total of
(in MW) 2025 to October, Generation
2025)
(in MU)
Fossil Fuel 2,45,600 48.6% 7,52,583 68.2%
Non-Fossil 2,59,423 51.4% 3,51,405 31.8%
Fuel
Total 5,05,023 100% 11,03,988 100%
………2.- 2 -
(c) : The National Transmission Grid has been remained accommodative in integrating
generation capacity, including large – scale Renewable Energy (RE). There has been no
curtailment of generation capacity with effective General Access Network (GNA) to the
Inter-State Transmission System (ISTS). However, at present, temporary GNA for
evacuation of 12,407 MW of power has been provided through the available margins on
the existing ISTS, subject to technical and operational constraints across different time
blocks. Of this, 5,370 MW is located in Gujarat, 4,088 MW in Rajasthan, and 2,949 MW in
Karnataka/ Tamil Nadu.
(d) : Transmission systems associated with generation projects are planned well in
advance and implemented in a phase manner, aligned with projected capacity addition.
The National Grid is being strengthened on a continuous basis to ensure timely
evacuation, grid integration and optimal utilisation of power across regions. Presently,
234 Inter-State Transmission System projects, capable of evacuating about 203 GW of
generating capacity, are under various stages of implementation and are planned to be
commissioned progressively by 2031.
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