Coal Availability for Thermal Power Plants

Why in news

The article provides an update on the current coal stock available at thermal power plants in India, its sufficiency for meeting demand, and measures being taken to integrate renewable energy sources with coal-based power generation.

Exam relevance

GS3 · Economy, Environment & Ecology, Science & Technology · Prelims · Mains

Key facts

1. Coal (including Lignite) based generation capacity in India is approximately 230.8 GW.
2. Coal-based power's share in total electricity supplied from April to June 2026 was 69.54%.
3. Maximum generation from coal-based plants was about 188.8 GW during non-solar peak demand hours.
4. As of July 12, 2026, thermal power plants had 42.8 Million Tonnes (MT) of coal stock, sufficient for 14 days at 85% Plant Load Factor (PLF).
5. Thermal power plants are currently receiving sufficient coal to meet daily demands.
6. Scheduled maintenance of thermal units is planned to avoid peak demand months.
7. Central Electricity Authority (CEA) monitors and permits deferment of maintenance based on technical parameters and demand.
8. The 'Central Electricity Authority (Flexible Operation of Coal based Thermal Power Generating Units) Regulations, 2023' mandates coal-based units to achieve a minimum technical level of 40% as per CEA's phasing plan.

Prelims pointers

• Coal-based generation capacity in India.
• Share of coal in total electricity supply.
• Coal stock levels at thermal power plants and its sufficiency duration.
• Central Electricity Authority (CEA) regulations for flexible operation of coal-based thermal power units.
• Minimum technical level requirement for coal-based units.

Mains practice question

Discuss the challenges and strategies for ensuring energy security in India amidst the increasing integration of renewable energy sources, with specific reference to the role of coal-based thermal power plants and regulatory measures.

Static linkage

The article relates to India's energy sector, specifically the reliance on coal for thermal power generation and the ongoing transition towards integrating renewable energy sources. It touches upon the role of the Central Electricity Authority (CEA) in regulating power generation and ensuring grid stability.

Significance

Ensuring adequate coal availability is critical for India's energy security, given the significant share of coal in the electricity mix. The article highlights the current stock levels and supply chain management to meet demand. Furthermore, the notification of regulations for flexible operation of coal-based thermal power units signifies a step towards balancing the grid with intermittent renewable energy sources, a key challenge in India's energy transition.