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Coal Plant Inflexibility at 55% MTL Leads to 2.3 TWh Solar Curtailment, Threatens India's 500 GW Non-Fossil Target by 2030

Target:UPSC GS-IIIMPSCTeachingSSC GAPrelims HighMains HighStatic GK Link
28 Feb 2026
~2 min
Source: Indian Express
Key Data:262 GW51%2.3 TWh₹5.75 - 6.9 billion500 GW49.900 Hz – 50.050 Hz
Bodies:Central Electricity Authority (CEA)NTPCGRID-India
Practice MCQs from today's news ▸
What This Article Covers

1.India's installed renewable energy capacity reached 262 GW (over 51% of total capacity) in 2025, but grid integration is hampered by coal plant inflexibility.

2.A CEA report highlights that many coal plants cannot operate below 55% Minimum Technical Load (MTL), leading to 2.3 TWh of solar curtailment between May-Dec 2025, costing ₹5.75-6.9 billion.

3.This technical bottleneck forces grid operators to curtail clean energy to maintain frequency within the 49.900 Hz – 50.050 Hz band, impacting consumer tariffs and India's 500 GW non-fossil capacity target by 2030.

The Big Picture
Prelims · HighMains · High

India's ambitious renewable energy expansion faces a critical grid integration bottleneck due to the technical inflexibility of coal-fired power plants. Their inability to ramp down below 55% minimum load is causing significant solar energy curtailment, financial losses, and grid safety concerns, jeopardizing the 500 GW non-fossil fuel target for 2030. The Central Electricity Authority is proposing an incentive scheme to address this, but industry pushback highlights deep operational challenges.

Exam Lens

Quick Exam Facts From News

Installed RE Capacity (2025)262 GW
RE Share of Total Capacity> 51%
Solar Curtailment (May-Dec 2025)2.3 TWh
Compensation for Curtailment₹5.75 - 6.9 billion
Non-Fossil Fuel Target (2030)500 GW
Permissible Grid Frequency Band49.900 Hz – 50.050 Hz
Minimum Technical Load (MTL) Issue55% (cannot flex to 40%)

1-Minute Revision

  • ›Installed RE Capacity (2025): 262 GW
  • ›RE Share of Total Capacity: > 51%
  • ›Target this Data: Installed RE capacity reached 262 GW (>51% of total) in 2025; 2.3 TWh solar curtailed May-Dec 2025.
  • ›Target this Nodal Body: Central Electricity Authority (CEA) - proposes incentive scheme for thermal plant flexibility.
  • ›Target this Legal Point: Permissible system frequency band is 49.900 Hz – 50.050 Hz as per Indian Electricity Grid Code (IEGC).

Mastered this topic? Test your knowledge with a full MCQ quiz.

Practice exam-style questions, track your score, and strengthen your recall.

Q1Static LinkageEasy

Which statutory body under the Ministry of Power is responsible for the technical coordination and supervision of the power sector, as mentioned in the article proposing an incentive scheme for thermal plants?

Q2Statement-basedHard

Consider the following statements regarding the challenges of integrating renewable energy into India's grid:

1. A significant portion of India's coal-based thermal fleet is unable to operate below 55% Minimum Technical Load (MTL).

2. The curtailment of renewable energy is compensated under the Tertiary Reserve Ancillary Services (TRAS) mechanism, and these costs are borne solely by the power distribution companies.

3. The permissible band of system frequency for safe grid operation in India is 49.900 Hz to 50.050 Hz, as per the Indian Electricity Grid Code (IEGC).

Which of the statements given above is/are correct?

Q3Data-centricMedium

According to the Ember report cited in the article, how much solar generation was estimated to have been curtailed in India between May and December 2025?

Q4Application/ImpactMedium

What is the primary operational reason, as highlighted in the article, necessitating the curtailment of renewable energy during peak solar hours in India?

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Coal-fired plants’ inflexibility…, Current Affairs for Exams