"NTPC Profits Rise as Fixed Charges Decouple Revenue from Generation"
Two-part tariff
a power pricing structure with a fixed capacity charge (for availability) and a variable energy charge (for actual generation).
Fixed charges
payments to thermal generators for keeping plants available to the grid, irrespective of electricity produced.
India's power sector operates under a regulatory architecture established by the Electricity Act, 2003. This Act created the Central Electricity Regulatory Commission (CERC) at the national level and state electricity regulatory commissions at the state level. These bodies govern tariffs, grid codes, and power purchase agreements.
India's electricity mix has changed rapidly. The country has already crossed 500 GW of total installed capacity, with renewable energy accounting for a growing share. Solar and wind are intermittent sources. Their output depends on weather, not operator command. This creates a new operating reality for coal-based thermal plants, which were originally designed to run at high and steady loads.
Long-term power supply in India is governed by Power Purchase Agreements (PPAs). These contracts between generators and distribution companies (DISCOMs) define how generators are paid. The dominant structure is the two-part tariff: a fixed capacity charge paid regardless of generation, and a variable energy charge linked to actual electricity produced.
The two-part tariff structure is central to understanding how thermal generators earn revenue. Fixed charges compensate a generator for keeping its plant available to the grid. They cover capital costs, debt servicing, and fixed operating expenses. Variable or energy charges cover fuel costs and are paid only when the plant actually generates electricity.
This design made sense when thermal plants ran at high utilisation. As renewable energy grows, thermal plants are increasingly asked to reduce output during the day when solar generation is high. Under the two-part tariff, a plant continues to receive fixed charges as long as it remains available, even if it generates little or no electricity. This is why a generator like NTPC can see profits grow even as revenues stagnate or fall.
A related concept is the Minimum Technical Load (MTL): the lowest stable generation level at which a thermal unit can operate without shutting down. …
With reference to coal-based thermal power plants in India, consider the following statements:
1.None of them uses seawater.
2.None of them is set up in water-stressed district.
3.None of them is privately owned.
How many of the above statements are correct?
'Investment in infrastructure is essential for more rapid and inclusive economic growth.' Discuss in the light of India's experience.
Consider the following statements:
1.Coal sector was nationalized by the Government of India under Indira Gandhi's tenure.
2.Currently, coal blocks are allocated on lottery basis.
3.India, till recent times, imported coal to meet the shortages of domestic supply, but now India is self-sufficient in coal production.
Which of the statements given above is/are correct?
Consider the following statements regarding the two-part tariff structure used in India's long-term power purchase agreements:
1.Fixed capacity charges are paid to thermal generators only when they actually generate electricity.
2.Variable energy charges are linked to the actual quantity of electricity produced.
3.Under this structure, a thermal generator can receive fixed charges even during periods of zero generation, provided the plant remains available.
How many of the above statements are correct?
With reference to the Minimum Technical Load (MTL) of coal-based thermal power plants in India, consider the following statements:
1.MTL is the maximum generation level at which a thermal unit can operate safely.
2.The Central Electricity Authority has set a target for coal plants to achieve 40% MTL by 2030.
3.Reducing MTL allows thermal plants to back down further during periods of high renewable generation while remaining available to the grid.
Which of the statements given above is/are correct?
Match the following terms related to India's power sector with their correct descriptions:
(a) Fixed capacity charge — (i) Payment linked to actual electricity generated
(b) Variable energy charge — (ii) Payment for plant availability regardless of generation
(c) Annual Revenue Requirement — (iii) Total revenue a utility must recover to meet all operational and capital obligations
(d) Minimum Technical Load — (iv) Lowest stable generation level without plant shutdown
Select the correct match:
Consider the following statements regarding the financial structure of electricity Distribution Companies (DISCOMs) in India:
1.Fixed costs, including capacity payments to thermal generators, account for 38% to 56% of a DISCOM's Annual Revenue Requirement.
2.Fixed charges collected from consumers currently contribute 38% to 56% of total DISCOM revenues.
3.Most DISCOMs recover a significant portion of their fixed costs through variable energy charges linked to electricity consumption.
Which of the statements given above is/are correct?
Which of the following best explains why a thermal power generator in India can record higher profits even when its electricity generation falls?
1.Thermal generators receive fixed capacity charges for plant availability, irrespective of actual generation.
2.Fuel costs, which are variable, fall when generation falls, reducing total expenditure.
3.Thermal generators receive a government subsidy when renewable energy displaces their output.
Select the correct answer using the codes below:
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