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[jesssicaday]

[energylineindia1]

The ancillary services market expands as SCUC volumes surge

The ancillary services market recorded significant activity with SCUC scheduling over 100,000 MWh of regulation on April 21, 2026. This elevated participation in the ancillary services market indicates increasing reliance on real-time grid balancing mechanisms.

SCUC scheduling India operations are driven by AGC power system controls and tertiary reserve deployment. These mechanisms ensure frequency stability and manage congestion across the grid. The rising volumes highlight the importance of the ancillary services market in system operations.

Generator compensation trends further underline this shift. Jhabua Power has received over Rs 43 crore for part-load operation under SCED-SCUC, reflecting revenue opportunities within the ancillary services market.

NLDC scheduling shows a wide generator merit order India range, from low-cost coal units to high-cost gas plants. This variation impacts dispatch priority and revenue outcomes for generators.EnergylineIndia.com highlights that the ancillary services market is becoming integral to grid management. The ancillary services market underscores the growing role of flexible generation and real-time optimisation, Grid Operations, SCED, Power India, Energy Markets, Electricity.

[amienergy]

The Flexibility Kings

Short Rihand, Long Dadri: The New Algorithm for Thermal Profitability

▸January 2026 SCED statements indicate a shift in thermal dispatch economics.

▸NTPC Dadri TPS (Stage II) recorded a positive optimization credit of Rs 59,82,629.

▸The plant operates between its technical minimum (55%) and full load (100%).

▸Rihand STPS recorded negative SCED settlements of approximately Rs 4 Crores in the same period.

▸December 2025 data reflects similar trends.

▸SCED outcomes increasingly reflect operational flexibility in a renewable-integrated grid.

For more such stories, go to: www.energylineindia.com

[energylineindia1]

SCED dispatch mechanism turns curtailment into cost

SCED dispatch mechanism behaviour in January 2026 exposed a quiet but significant inversion in dispatch economics in the North Eastern Region. Instead of rewarding flexibility, the settlement framework effectively priced curtailment, converting down-dispatch into a revenue event for the pool.

Plants that were net beneficiaries in December became net contributors in January. Increment energy volumes shrank, decrement volumes multiplied, and settlement ledgers turned negative. This was not volatility. It was the arithmetic consequence of repeated down-instructions monetised through the SCED dispatch mechanism.

Operationally, these plants remained available. Commercially, they absorbed system stress. The gap between operational cause and financial consequence widened, revealing how the SCED dispatch mechanism redistributes costs when constraints dominate dispatch decisions.

For power system operations, this raises difficult questions. Constraint resolution is being funded implicitly through settlement reversals rather than explicit grid charges. Over time, this could distort incentives, pushing generators to optimise behaviour not for efficiency, but to avoid becoming the default shock absorber.

Observers of Indian Power news see January as an early signal. If down-dispatch continues to dominate, the SCED dispatch mechanism risks evolving from an optimisation tool into a structural cost-allocation device, Dispatch Economics, Power System, SCED. The full data-driven interpretation is available on EnergylineIndia.com.

[souravpaul]

India’s minimum-turn-down dispatch stabilises

✅ Intervention volumes collapsed within a month ✅ Coal plants operated closer to stable minima ✅ SCED-linked charges fell sharply

October was about correction. November looked economic again.

Coal quality improved. Logistics steadied. Demand stopped swinging.

The grid relaxed — briefly.

But this balance rests on conditions, not guarantees.

✅ How quickly does stress return ✅ Who absorbs the cost when it does

Read the full analysis on https://www.energylineindia.com/

[energylineindia1]

News on Indian power sector

A dramatic pivot in SCED outcomes has become one of the most-discussed developments in News on Indian power sector reporting. October’s data showed modest net gains for the pool, with SCED functioning like a mild decrementing tool. But November reverses the entire dynamic: upward SCED dispatch surges, turning the pool into a substantial payer. This trend has quickly gained prominence across News on Indian power sector commentaries.

Tanda-II drives the narrative. Its leap from modest October gains to commanding November’s payout table has cemented its position in analytical reviews within News on Indian power sector. Singrauli also charts a notable climb, signaling that age is no barrier to SCED value if availability, DC management and cost declarations are strategically aligned.

The other side of the ledger is equally telling. Dadri TPS and a chronically underperforming Unchahar unit now absorb heavier negative settlements. The earlier, broad distribution of SCED “pain” has narrowed, a point repeatedly flagged in News on Indian power sector insights. Fewer units now bear deeper penalties, revealing structural inefficiencies.The risk highlighted in News on Indian power sector is clear: NR is depending on a small cluster of coal stations for upward SCED flexibility. Any constraint at these high-earning plants could weaken SCED’s balancing efficiency. November may be a precursor to a new SCED-shaped merit order, News On Indian Power Sector, SCED, Coal Dispatch, Energy Markets, Northern Region.

[neelamroyal]

SCED stabilises after August’s turbulence — September 2025 review

September 2025 brought calm after chaos for India’s power grid. After August’s sharp dispatch deviations, the system finally stabilised — and the data proves it.

MTL cost plunged 87%, and total generator shortfall under SCED (Security Constrained Economic Dispatch) dropped from 5.09 lakh MWh to just 0.79 lakh MWh. That means smoother scheduling, tighter discipline, and better unit availability across all regions.

The grid’s smoothest month yet

NLDC data shows SCED-up and SCED-down volumes halved month-on-month. MTL support energy dropped nearly 86%, marking September as 2025’s most balanced dispatch month so far.

Southern and eastern thermal units — especially Telangana STPP, RSTPS, and NTPL — cut their shortfalls by over 90%. The southern region’s payment obligation crashed from ₹33 crore to under ₹3 crore, showing how even high-load states synced dispatch effectively.

SCED pool shrinks — and southern stations lose edge

After August’s buoyant run (₹121 crore payouts), September’s SCED pool contracted by 33% to ₹80.7 crore. Southern NTPC plants like Simhadri, Kudgi, Telangana, Vallur, and Ramagundam flipped from payees to payers — turning the region’s gainers into refunders.

High coal transport costs, inflexible PPAs, and low ramp flexibility hurt them badly. Southern stations collectively refunded large amounts to the national pool, signalling lost competitiveness.

East takes the lead

While southern plants stumbled, eastern stations dominated the merit stack. Kahalgaon-II’s SCED earnings more than doubled from ₹2.79 crore to ₹6.93 crore. Together, Farakka, Kahalgaon, Barh, and Muzaffarpur accounted for nearly half of all payouts.

Northern units like Tanda, Rihand, and Singrauli held steady, while western stations saw mixed results — Khargone and Mouda stayed positive, but older ones like Korba and Vindhyachal narrowed margins.

Gadarwara tops, Ramagundam bleeds

The NTPC Gadarwara (2×800 MW) supercritical plant in Madhya Pradesh emerged as SCED’s top earner, pocketing ₹250.6 crore. It added over 80,000 MWh through efficient scheduling and lower heat rates.

But down south, Ramagundam-I&II refunded ₹183.9 crore, Ramagundam-III ₹44.4 crore, Vallur TPS ₹156 crore, and NTPL ₹105.9 crore. The southern fleet’s high landed coal costs and rigid operations kept it out of the money.

Efficiency now drives the merit order

All-India increments of 436 GWh and decrements of 465 GWh generated a net pool surplus of ₹257.86 crore — a clear sign that efficiency, not entitlement, now decides dispatch.

But as inter-regional price differentials narrow, SCED’s benefit pool is shrinking. The next wave of efficiency will require flexible generation, better ramping, and market-based coordination.

Takeaway

September 2025 was the breather India’s grid needed — tighter dispatch, fewer deviations, and a more disciplined merit order. Newer plants like Gadarwara are thriving; older southern baseloads are paying the price for inefficiency.

The message is clear: the easy efficiency gains are over. From here, only operational agility and structural flexibility will keep plants competitive.

Data Source: National SCED Statement (NLDC), September 2025 Analysis: EnergyLineIndia.com