**Summary:**
In response to a query regarding the government's strategy for integrating solar energy with Long Duration Energy Storage (LDES) to ensure a consistent, dependable, and cost-effective renewable energy supply, the Minister of State for New and Renewable Energy and Power, Shri Shripad Yesso Naik, outlined the government's position. The response acknowledges the variable and intermittent nature of wind and solar power and emphasizes the role of Energy Storage Systems, including LDES, in enhancing grid stability by mitigating intermittency and variability.
The government has implemented several measures to promote energy storage systems, including LDES:
1. Publication of a National Framework to promote the development of Energy Storage Systems.
2. A waiver on Inter-State Transmission System charges for renewable energy projects incorporating energy storage systems commissioned by June 2028.
3. Approval of Viability Gap Funding for the development of approximately 43 GWh of Battery Energy Storage Systems.
4. Issuance of an Advisory encouraging the co-location of Energy Storage Systems with Solar Power Projects to enhance grid stability and cost efficiency.
Key Entities Referenced
Ministry of New and Renewable Energy: The Indian government ministry responsible for new and renewable energy.
SHRI VE VAITHILINGAM: Member of Parliament who asked the question in Lok Sabha.
Long Duration Energy Storage (LDES): A type of energy storage system designed to store energy for extended periods.
SHRI SHRIPAD YESSO NAIK: The Minister of State for New and Renewable Energy and Power who provided the answer.
National Framework for promoting developing Energy Storage Systems: A document published by the Government of India to promote the development of energy storage systems.
InterState Transmission System: Transmission system that facilitates the transfer of electricity between states.
Battery Energy Storage Systems: Systems that use batteries to store energy, often used for grid stabilization.
Solar Power Projects: Projects that generate electricity from solar energy.
GOVERNMENT OF INDIA
MINISTRY OF NEW AND RENEWABLE ENERGY
LOK SABHA
UNSTARRED QUESTION NO. 572
ANSWERED ON 23/07/2025
COMBINING SOLAR ENERGY WITH LDES
572. SHRI VE VAITHILINGAM
Will the Minister of New and Renewable Energy be pleased to state:
(a) whether the Government proposes to emphasize the transformative potential of combining
solar energy with Long Duration Energy Storage (LDES) to ensure continuous, reliable and
affordable renewable energy;
(b) if so, the details thereof; and
(c) if not, the reasons therefor?
ANSWER
THE MINISTER OF STATE FOR NEW & RENEWABLE ENERGY AND POWER
(SHRI SHRIPAD YESSO NAIK)
(a) to (c): Renewable power from wind and solar is variable and intermittent in nature. Energy
Storage Systems including Long Duration Energy Storage (LDES) enhances grid stability by
addressing intermittency and variability and ensuring reliable power supply from renewable
energy sources. Government has taken following measures for promoting energy storage
systems including LDES:
i. Published a National Framework for promoting & developing Energy Storage Systems.
ii. Granted waiver on Inter-State Transmission System charges for renewable energy projects
with energy storage systems commissioned till June 2028.
iii. Approved Viability Gap Funding for development of approximately 43 GWh of Battery
Energy Storage Systems.
iv. Issued an ‘Advisory on co-locating Energy Storage Systems with Solar Power Projects
to enhance grid stability and cost efficiency’.
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