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Detail page     India ยท #3 expansion market ยท As of 16 May 2026

India
โ€” APTEL 100 % PPA ยท Rajasthan crisis ยท Must-Run lever.

India is, with 132 GW installed solar (MNRE Dec 2025), the world's third-largest solar market โ€” and legally the most favourable for PV forensics in Asia: solar has Must-Run status, every unlawful curtailment is compensable. APTEL leading judgement 02 Aug 2021 enforces 100 % PPA tariff for post-2021 curtailment plus 9 % interest. Rajasthan 2025: 4 GW curtailed, 100 % midday peak from December 2025.

100 %
PPA tariff comp. for post-2021 curtailment (APTEL 02.08.2021)
4 GW
Rajasthan curtailed since March 2025
132 GW
installed solar capacity Dec 2025 (MNRE)
0
specialised curtailment forensics software in IN market

Note: Indian currency in "Crore" (1 Cr = 10 M INR) and "Lakh" (1 Lakh = 100,000 INR). FX May 2026: 1 EUR โ‰ˆ 95 INR, 1 USD โ‰ˆ 87 INR.

1. Market structure โ€” 4 parallel sales channels

ChannelActorTariff 2025Curtailment-dispute risk
SECI/NTPC auctions (ISTS)SECI as intermediary (PSA with generator, PSA with State-DISCOM)2.70 INR/kWh Standalone Solar, 2.86 INR/kWh Solar+Storage, 4.98 INR/kWh FDREmedium
State-DISCOM direct PPAsTANGEDCO, TSGENCO, GUVNL, MSEDCL, BESCOM, APDISCOM4.30-7.00 INR/kWh (Legacy 2015-2017)highest โ€” Legacy tariffs most frequent dispute trigger 2024-2026
Green Open Access / Group Captivedirect industrial customer (โ‰ฅ100 kW since June 2022)freely negotiatedlow
Merchant / Power-ExchangeIEX (~95% market share), PXILFY26 DAM 3.86 INR/kWh; RTM crash to 0.02 INR/kWh possiblemedium

2. Concrete cases ยท APTEL/CERC

2.1 ๐Ÿ‡ฎ๐Ÿ‡ณ Tamil Nadu ยท APTEL Appeal 197/2019 (leading judgement 02 Aug 2021)

The key case. NLC India Limited + multiple TN solar IPPs (~1,500 MW) sued TNSLDC backdown orders 01.03.-30.06.2017. APTEL appointed POSOCO as forensic expert. POSOCO finding: only 60 of 1,140 time blocks (5.26 %) grid-technically justified โ€” remaining 94.74 % unlawful.

Verdict: 75 % PPA tariff for past curtailments (pre-2021) + 9 % interest p.a. For all curtailments from non-grid reasons after 02.08.2021: 100 % PPA tariff.

2.2 ๐Ÿ‡ฎ๐Ÿ‡ณ Karnataka ยท Wardha & Parampujya v. KSLDC (CERC 287/MP/2019, Order 2023)

CERC: 75 % PPA tariff (pre-2021) + 100 % (post-2021) + 9 % interest + 60-day payment.

2.3 ๐Ÿ‡ฎ๐Ÿ‡ณ Andhra Pradesh ยท Solairepro Urja 250 MW (CERC, March 2025)

CERC: Must-Run status reaffirmed, compensation ordered.

2.4 ๐Ÿ‡ฎ๐Ÿ‡ณ Gujarat ยท GIPCL Raghanesda 100 MW (CERC 126/MP/2024, Order 30.06.2025)

WRLDC restricted Raghanesda Solar Park from 600 MW to 492 MW citing CEA Technical Standards for reactive power compensation.

CERC quashed the WRLDC order and restored full dispatch. Technical pretexts for self-optimisation curtailment are increasing.

3. Rajasthan crisis 2025 (ongoing, CERC hearing 27 Nov 2025)

โš  The central story for 2025-2026

Between March-September 2025: ~4 GW solar+wind curtailed in Rajasthan, industry damage up to Rs 250 Cr (โ‰ˆ โ‚ฌ26.3 M) by September. NSEFI later cited Rs 2.3-2.5 bn (โ‰ˆ $25-28 M) FY26 losses.

Escalation curve: 8.5 % March โ†’ 51.5 % August โ†’ 100 % curtailment in peak hours from December 2025 for ~4,300 MW capacity. NSEFI letter to MNRE 24.07.2025 cites 18-20 months transmission delay.

Affected IPPs (publicly named): Adani Green, ReNew Power, Serentica Renewables, Juniper Green Energy, Zelestra Energy, ACME Group, Amp Energy India. An industry executive cited 42 % average curtailment since Q1 FY26 with monthly losses >20 Cr per IPP. CERC consolidated hearing 27.11.2025 on Rajasthan petitions.

4. Data sources for forensics

SourceWhat it deliversAccess
Grid-India (ex POSOCO)NLDC + 5 RLDCs ยท System frequency 1-sec, daily PDFsNO JSON API for block-level โ€” PDF scraping or RTI request
State SLDC portalsRJ-SLDC (very detailed), Odisha, MP, KA โ€” quality variesportals
IEXDay-Ahead Market (15-min since 2008), Real-Time Market (since 06/2020), Green-DAM (since 10/2022)CSV via web UI, no free public API
MERIT PortalMinistry of Power Demand-Met, Own-Gen, Imports, plant-wise summaryopen
CERC/SERCPDF archive of all orderscercind.gov.in
Weather: IMDINSAT-3D/3DR insolation (15-min)no open API
Weather: Solcast Indiacommercial, 1-min resolutionsolcast.com
Weather: Open-Meteofree, same ICON/ECMWF models as for DE-Lotterfree API ยท Lotter pattern directly portable
โ–ธ India Live Price (IEX today) โ–ธ 35 countries live prices

5. Local competition

Market gap confirmed

Curtailment forensics tools specifically for India: NEGATIVE finding. No specialised provider that automates SLDC dispatch commands ร— PPA ร— weather ร— settlement cross-check like Stromfee.ai. Forensics is done project-by-project by consultants + lawyers โ€” manual, expensive, slow. This is the Stromfee gap.

Global platforms with IN footprint: Huawei FusionSolar, SolarEdge, SMA, ABB/Hitachi, Schneider, Siemens-DG, meteocontrol India (~3 GW under contract), Power Factors, Trinity Touch SolarVision. Local SCADA: SuryaLogix, Consyst, Renew Grid, Sunce Renewable, Aerem. Inhouse: Adani Green, ReNew, Tata Power, Greenko โ€” proprietary APM (NOT forensic). Consultants: Idam Infrastructure, Bridge to India, JMK Research, Mercom India, Idam, TรœV Rheinland India, DNV India.

6. First-customer profile ยท Top IPP targets

Top-10 solar IPPs by capacity (2025): Adani Green (>15 GW), ReNew Power, Tata Power Renewable, Greenko, Avaada, ACME Solar Holdings, Hero Future Energies (KKR), Vibrant Energy, Sembcorp Green Infra, JSW Energy Renewables. Plant sizes typical: 50-600 MW per PPA. Bhadla (RJ, 2,245 MW), Pavagada (KA, 2,050 MW), Kadapa Ultra Mega (AP, 1,000 MW), Rewa (MP, 750 MW).

Stromfee first-customer pain profile

100-500 MW IPP ยท SECI or State PPA ยท Legacy tariff >3.50 INR/kWh (signed before 2022) ยท Rajasthan/Karnataka/Tamil Nadu/Andhra Pradesh ยท โ‰ฅ10 % measured curtailment 2024-2025.

Cash math: 200 MW ร— 25 % peak curtailment ร— 2,000 kWh/kWp/yr ร— 3.50 INR/kWh โ‰ˆ ~35 Cr INR/yr (โ‰ˆ โ‚ฌ3.7 M/yr) lost revenue.

7. Legal framework โ€” Must-Run advantage

Electricity Act 2003 โ€” parent law (Section 79 CERC, 86 SERC, 111/120 APTEL). Indian Electricity Grid Code (IEGC) 2023 โ€” central curtailment legal norm. Anchors Must-Run status for solar and wind. Curtailment only allowed for documented grid security.

Operational APTEL definition of grid security: Frequency 49.90-50.05 Hz, 400 kV voltages 380-420 kV, no grid overload, reserves available.

โœ… ยง51-EEG equivalent? NO โ€” and this is an ADVANTAGE for Stromfee!

India has NO explicit cutoff at negative IEX prices. Must-Run status is meant to protect solar JUST FROM market-price-induced backdown. In practice the opposite happens: DISCOMs/SLDCs use the "grid security" pretext for economically motivated curtailment โ€” exactly the evidence field where Stromfee.ai works. No ยง51 hour counting; ALL unlawful curtailments trigger compensation, not only above threshold. This is legally more favourable than the German logic.

8. Cash damage examples

Projection 100 MWp Rajasthan plant 2025

Capacity AC100 MW (typical SECI slot)
Expected annual generation~200 GWh (2,000 kWh/kWp, DC/AC 1.3)
Curtailment share 2025 (April-Aug avg)~30 %
Lost energy~60 GWh
PPA tariff (SECI 2018 vintage)2.90 INR/kWh
Lost revenue17.4 Cr INR โ‰ˆ โ‚ฌ1.83 M
APTEL compensation @ 100 % PPA tariff17.4 Cr INR
Plus 9 % p.a. interest from loss date~1.0 Cr/year

Rajasthan total crisis: 4 GW ร— 30 % ร— 2,000 h/yr โ‰ˆ 2.4 TWh ร— mix tariff 3.00 INR/kWh = 720 Cr INR โ‰ˆ โ‚ฌ76 M industry damage 2025.

9. NSEFI ยท Lawyers ยท Consultants

โš  Correction to world study: "ABSOLAR" is the BRAZILIAN solar association (see /en/studie/brasilien-pv-curtailment.html). Indian counterpart is NSEFI.

ActorProfileStromfee relevance
NSEFIChairman Pranav Mehta, CEO Subrahmanyam Pulipaka ยท 142 members ยท ~95 % installed solar cap. ยท HQ Noida (Delhi NCR)First contact #1 ยท own curtailment tracker
Law firms
Khaitan & Co ยท Cyril Amarchand ยท AZB ยท Shardul Amarchand ยท Phoenix LegalEnergy regulatory, M&A, CERC/APTEL litigationBig-law options
TrilegalLeading in backdown disputes ยท published APTEL repositoryRecommended counsel #1
SKV Law OfficesAPTEL/CERC specialist ยท Tata Power mandatesRecommended counsel #2
Consultancies
Idam Infrastructure31-yr veteran energy consultingExpert opinions
Bridge To IndiaMarket studies, policyIntelligence
JMK Research ยท Mercom ยท RE-NavigatorMonthly RE updates, M&A intelligenceData sources

10. 4-Mirror lever ยท automated APTEL/POSOCO replication

The actual forensics lever of Stromfee.ai in India: the German 4-mirror model (plant ร— market ร— grid ร— marketer) can be adapted 1:1 to Indian data sources โ€” and represents the automated version of POSOCO forensics that proved in the APTEL leading judgement 02.08.2021 (TANGEDCO) that 94.74 % of curtailments were unlawful.

MirrorDE sourceIN adaptationConcrete lever
1 ยท Plantmeteocontrol VCOM + Open-MeteoPlant SCADA (FusionSolar/SMA/Power Factors) + Solcast India + Open-Meteo (Lotter pattern directly portable)Proves weather-corrected target generation vs. actual real power per 15-min slot
2 ยท MarketEPEX + ENTSO-E + UeNB spotmarketIEX/PXIL Day-Ahead + Real-Time + Green-DAMProves: was there a market trigger? In DE that would be ยง51 negative price. In IN irrelevant โ€” Must-Run status makes EVERY curtailment compensable
3 ยท GridNetztransparenz + TSO + rd_eventsGrid-India NLDC + 5 RLDCs + 29 SLDCs dispatch commands (PDF scraping / RTI request)Proves: was the curtailment grid-technically justified? Cross-check against Grid-Security criteria (frequency 49.90-50.05 Hz, 400 kV voltages 380-420 kV)
4 ยท MarketerTrianel MSCONS + Pos-001/002 + SoK24SECI PSA + DISCOM PPA + CCEE settlement filesProves: which hours has the off-taker declared as curtailed to the generator + which compensated

Lever chain ยท from 15-min slot to APTEL petition

+--------------------------------------------------------------+
|  Stromfee 4-mirror output                                    |
|  โ†’ forensic table per 15-min slot                            |
|  โ†’ automatic plausibility score (% lawful)                   |
+--------------------------------------------------------------+
                            โ†“
+--------------------------------------------------------------+
|  Expert witness (Idam Infrastructure / Independent Eng.)     |
|  โ†’ validates methodology per POSOCO 2021 standard            |
|  โ†’ 15 min instead of 3 weeks preparation                     |
+--------------------------------------------------------------+
                            โ†“
+--------------------------------------------------------------+
|  Counsel firm: Trilegal OR SKV Law Offices                   |
|  โ†’ Petition before CERC (federal case) or APTEL (appeal)     |
+--------------------------------------------------------------+
                            โ†“
+--------------------------------------------------------------+
|  APTEL/CERC verdict (post-2021 standard):                    |
|  100% PPA tariff + 9% interest p.a. + 60-day payment         |
+--------------------------------------------------------------+
                            โ†“
+--------------------------------------------------------------+
|  Cash recovery for 100 MWp / 30% curtailment:                |
|  โ‰ˆ 17.4 Cr INR/year (โ‰ˆ โ‚ฌ1.83 M/year)                         |
|  Stromfee fee 1-2%: 17-35 Lakh INR (โ‰ˆ โ‚ฌ18-37 k)              |
+--------------------------------------------------------------+
    

Concrete cash recovery example ยท ACME Bhadla-IV-SPV (projection)

Projection 250 MWp ACME-Bhadla-IV slot (Stromfee methodology)

PlantACME Bhadla-IV-SPV (Rajasthan, Bhadla Solar Park)
Capacity AC250 MW (typical SECI slot in Bhadla)
Vintage PPASECI 2017-2018 (legacy tariff higher)
PPA tariff (assumption)2.44 INR/kWh (SECI Bhadla-IV auction)
Expected gross generation 2025~500 GWh (2,000 kWh/kWp DC, DC/AC 1.3)
Curtailment share 2025 (NSEFI avg 42% FY26)~42 %
Lost energy~210 GWh
Lost gross revenue 202551.2 Cr INR โ‰ˆ โ‚ฌ5.4 M
POSOCO adaptation: 94.74 % unlawful (Stromfee estimate per TN 2021)~199 GWh
Claimable per APTEL 02.08.2021 standard48.5 Cr INR โ‰ˆ โ‚ฌ5.1 M
Plus 9 % p.a. interest from loss date (avg over 2 yr proceedings)โ‰ˆ 4.4 Cr INR
ฮฃ Recovery potential 2025 curtailment52.9 Cr INR โ‰ˆ โ‚ฌ5.6 M
Stromfee fee 1.5 % cash recovery79 Lakh INR โ‰ˆ โ‚ฌ83 k/plant
Stromfee effort (pipeline setup + 12 mo forensics)~โ‚ฌ15-20 k
Stromfee margin per successful forensicsโ‰ˆ โ‚ฌ60-65 k ร— number of plants

Scaling math: With 50 addressable IPP plants โ‰ฅ100 MWp in Rajasthan/Karnataka/Tamil Nadu/Andhra Pradesh (NSEFI estimate) and 10 % conversion rate over 2 years = 5 successful forensics mandates ร— โ‚ฌ65 k = โ‚ฌ325 k Stromfee margin from the Indian market โ€” under very conservative assumptions. At 25 % conversion = ~โ‚ฌ810 k.

11. IN Pain Map ยท State distribution + Top-30 plants

Stromfee.ai pipeline step 1 (May 2026): initial loading of an IN plant register in ClickHouse (database in_market.anlagen_register) with the Top-30 utility-scale solar plants โ‰ฅ100 MWp from public sources (Wikipedia + Mercom + SaurEnergy + SECI + Bridge to India). As of 16.05.2026: 17.05 GW capacity across 30 plants in 7 states.

State pain heatmap (Stromfee DB snapshot 16.05.2026)

#StatePlants โ‰ฅ100 MWpฮฃ Capacity (GW)Curtailment 2025Pain score
1๐Ÿ‡ฎ๐Ÿ‡ณ Rajasthan146.36 GW42 % avg ยท midday peak 51.5 % Aug ยท 100 % from Dec 2025๐Ÿ”ด acute #1
2๐Ÿ‡ฎ๐Ÿ‡ณ Andhra Pradesh64.55 GW18 % avg ยท APDISCOM settlement delay๐ŸŸ  #2
3๐Ÿ‡ฎ๐Ÿ‡ณ Gujarat32.89 GW15 % avg ยท Khavda cluster + WRLDC disputes (Raghanesda)๐ŸŸก #3
4๐Ÿ‡ฎ๐Ÿ‡ณ Karnataka42.55 GW22 % avg ยท Pavagada cluster ยท CERC 287/MP/2019๐ŸŸ  #4
5๐Ÿ‡ฎ๐Ÿ‡ณ Madhya Pradesh10.75 GW12 % avg ยท Rewa cluster๐ŸŸข #5
6๐Ÿ‡ฎ๐Ÿ‡ณ Tamil Nadu10.65 GW30 % avg ยท TANGEDCO backdowns + APTEL 2021๐ŸŸก #6
7๐Ÿ‡ฎ๐Ÿ‡ณ Odisha10.30 GW8 % avg ยท NLC Sambalpur๐ŸŸข #7
ฮฃ Stromfee DB snapshot17.05 GWExpansion: next iteration ~500-1,000 plants โ‰ฅ10 MW via SECI tender scraping + RTI

Top-30 plant excerpt from in_market.anlagen_register

Sorted by state โ†’ capacity. As of 16.05.2026. Source: Wikipedia solar park lists, Mercom IPP tracker, SaurEnergy SECI tender archive, Bridge to India Solar Compass, CERC order archive.

SPV / PlantStateMW ACCODOperatorOff-takerTariff INR/kWhCurt. 2025 %
Bhadla I (RVPN)RJ1602018RVPN+privateRVPN4.3430
Bhadla II (Solairepro)RJ2502018Solairepro UrjaSECI2.6242
Bhadla III (Acme)RJ2502019Acme Solar HoldingsSECI2.4442
Bhadla IV (Adani)RJ3002019Adani Green EnergySECI2.4442
Bhadla IV (SB Energy)RJ5002019SB Energy (Softbank)SECI2.4442
Khetri-Narela clusterRJ8002025Multiple IPPsSECI2.55100
Bikaner Solar ClusterRJ1,5002020Multiple IPPsRVPN+SECI2.5042
ReNew RJ-ISTS Phase IIIRJ3002022ReNew Power (NASDAQ:RNW)SECI2.4342
Serentica RJ clusterRJ5002024Serentica RenewablesSECI2.5042
Juniper Green RJRJ4002024Juniper Green EnergySECI2.5542
Zelestra RJRJ3002024ZelestraSECI2.5542
Amp Energy RJRJ3002024Amp Energy IndiaSECI2.5542
Avaada RJ clusterRJ5002023Avaada EnergySECI2.5542
NTPC REL RJ clusterRJ3002024NTPC RELSECI2.4342
Kadapa Ultra MegaAP1,0002019Multiple IPPsAPDISCOM2.7118
Kurnool Ultra MegaAP1,0002017SBE+Greenko+Azure+AdaniAPDISCOM4.6318
Anantapur Ultra MegaAP1,5002018Multiple IPPsAPDISCOM2.9618
Solairepro KadapaAP2502018Solairepro UrjaAPDISCOM2.6530
Tata Power AP SolarAP3002022Tata Power RenewableAPDISCOM2.8518
Greenko Pinnapuram (FDRE)AP5002024Greenko EnergiesSECI4.9818
Adani KhavdaGJ2,0002024Adani Green EnergyGUVNL+SECI2.7015
Charanka Solar ParkGJ7902012Multiple IPPsGUVNL4.308
GIPCL Raghanesda (CERC dispute)GJ1002021GIPCL (BSE:GIPCL)GUVNL2.69โ€”
Pavagada NTPCKA6002018NTPCKSPDCL2.9722
Pavagada SECIKA2002019Multiple IPPsSECI2.8522
Pavagada KREDLKA1,2502019KREDL+privateKSPDCL4.7922
ReNew KarnatakaKA5002023ReNew PowerSECI2.7812
Rewa Ultra MegaMP7502018Mahindra+Acme+SolenergiRUMSL+DMRC2.9712
Kamuthi (Adani)TN6482016Adani Green EnergyTANGEDCO7.0130
NLC SambalpurOD3002023NLC India LimitedOPGCL2.858

Findings from initial snapshot

  1. Rajasthan = 37 % of tracked capacity, 46 % of tracked plants โ€” the absolute concentration point. 14 plants ร— 42 % curtailment = the prioritised top list for forensics pilot.
  2. Adani Green holds Kamuthi (TN, tariff 7.01 INR โ€” highest legacy!) + Bhadla-IV (300 MW) + Khavda (2 GW Gujarat) = 2,948 MW in DB, ~80 % in curtailment hotspots. Main pitch candidate #1.
  3. SB Energy / Softbank Bhadla-IV (500 MW) at 42 % curtailment = potentially ~125 Cr INR/year (โ‰ˆ โ‚ฌ13 M) loss per APTEL standard.
  4. SECI off-take dominates (16/30 plants) โ†’ unified litigation counterparty, bundling-capable for collective petitions.
  5. Legacy tariff >4 INR/kWh for 6 plants (RVPN Bhadla, Kurnool, Charanka, Pavagada-KREDL, Kamuthi-Adani, Greenko-FDRE) โ†’ highest recovery potential per curtailed MWh.
  6. Khetri-Narela 2025-COD cluster (800 MW, 100 % curtailment Dec 2025) = smoking-gun plant for CERC petition immediately after commissioning.

Ember 2.3 TWh finding ยท national aggregate 2025

Ember Energy Brief (January 2026) โ€” verified figures

2.3 TWh of solar generation nationwide curtailed between May and December 2025. At IN solar 2025 total generation ~140 TWh = 1.6 % national aggregate โ€” but locally in Rajasthan 42 % daily average across 4.3 GW capacity. TRAS compensation: INR 5.75-6.90 bn (~ $63-76 M). Bridge to India / IEEFA: ~50 GW renewable capacity nationally stranded (generation not running due to lack of evacuation). FY2025 only 8,830 ckm new transmission built vs. target 15,253 ckm = 42 % shortfall.

ACME Solar ยท publicly reported damage โ‚น17.5 Cr/quarter

Smoking-gun disclosure NSE:ACMESOLAR

ACME Solar Holdings declared in an NSE disclosure filing a one-time quarterly loss of โ‚น17.5 Cr (~ โ‚ฌ1.84 M) for the Sikar plant (Rajasthan, 300 + 75 MW). Monthly 42 % curtailment, cumulative loss >โ‚น20 Cr. ACME Sikar was switched back on 14.12.2025 after a 100 % curtailment phase. First listed IPP with public damage disclosure โ€” valuable precedent for Stromfee pitch to other listed operators (Adani Green, ReNew, JSW, Tata).

IPP pain ranking ยท Top-20 (Stromfee DB in_market.ipp_pain_ranking)

#IPPRE portfolio GWRJ share %Loss 2025 Cr INRListingPain source
1Adani Green Energy19.3 op / 40.4 incl. pipeline30 %โ€”NSE:ADANIGREENKhavda + Bhadla-IV + Kamuthi-TANGEDCO + 3 CERC petitions
2ReNew Power13.0 op / 22.2 incl.25 %โ€”NASDAQ:RNWJaisalmer 1.3 GW + Bhadla + Pavagada โ€” 100 % RJ curtailment
3NTPC REL19.615 %โ€”NSE:NTPCGREENBhadla 500 + NP Kunta 250 + Bikaner
4ACME Solar Holdings5.070 %17.5 Cr Sikar disclosureNSE:ACMESOLARRewa 250 + Bhadla 200 + Sikar 375 โ€” public damage disclosure
5Greenko Energies15.10โ€”privateKurnool 500 (ex-SunEdison)
6Tata Power Renewable5.810 %โ€”NSE:TATAPOWERPavagada 250 + Bikaner 450
7Avaada Energy5.040 %โ€”privateBhadla + Pavagada 150 โ€” MERC vs MSEDCL
8JSW Energy / JSW Neo16.15 %โ€”NSE:JSWENERGYAPTEL BESS dispute
9Hero Future Energies3.030 %โ€”privateBhadla 300 โ€” KKR-backed
10Sembcorp Green Infra3.010 %โ€”SGX:SCIFDRE tariff dispute
11Serentica Renewables2.0100 %โ€”private (Sterlite)Whalesbook โ‚น20,000 Cr crisis
12Juniper Green Energy2.0100 %โ€”private (ATS)Whalesbook RJ crisis
13Zelestra (ex Solarpack)1.5100 %โ€”private (EQT)Whalesbook RJ crisis
14Amp Energy India1.0100 %โ€”privateWhalesbook RJ crisis
15SB Energy (now AGEL)1.730 %โ€”AGEL subsidiaryBhadla-III 200 + IV
16Sprng Energy (Shell)2.00โ€”Shell subsidiaryKadapa 250 + NP Kunta 228
17Ayana Renewable Power1.50โ€”BII-backedKadapa 250 + NP Kunta 250
18Engie India (Solairedirect)1.00โ€”EPA:ENGICERC Solairepro petition Kadapa
19Vibrant Energy0.5โ€”โ€”privaten/a publicly
20Mahindra Susten1.520 %โ€”NSE:M&M560 MWp new 2025 + InvIT sale

Stromfee first-customer cluster: Rank 4 (ACME public-disclosed loss) + ranks 11-14 (Serentica/Juniper/Zelestra/Amp with 100 % RJ exposure) = 5 IPPs with clearly measurable acute pain, combined portfolio ~7.5 GW โ€” the hottest pilot cluster.

DISCOM default heatmap (PRAAPTI April 2025)

DISCOMStateOpen invoices Cr INRPre-trigger Cr INRCharacter
TANGEDCOTamil Nadu21,358 (historical peak)โ€”Highest of all IN discoms ยท APTEL 75% PPA verdict 2021
APEPDCL+APSPDCL+APCPDCLAndhra Pradesh3,4211,937PPA renegotiation attempt 2019 + Solairepro petition
MSEDCLMaharashtra4,5361,434MERC proceedings Avaada
BESCOM+HESCOM+GESCOM+MESCOMKarnataka2,7352,211CERC proceedings Adani Solar
GUVNLGujaratlowlowMost reliable discom
RUVNL+JVVNL+AVVNL+JdVVNLRajasthanmediummediumCurtailment compensation dispute
UPPCLUttar PradeshhighhighTRAS mechanism active
MPPMCLMadhya PradeshmediummediumOK ยท Rewa PPA serviced
PSPCLPunjabmediummediumOK
All-India total April 2025India71,750 (= โ‚น717.5 bn / ~$8.51 bn)27,300 (pre-trigger)PRAAPTI portal snapshot

Seasonality map 2025 ยท Rajasthan

Diurnal curtailment Rajasthan 2025:
   09:30  โ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘  15 %
   10:30  โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–‘โ–‘โ–‘โ–‘โ–‘  35 %   โ† rising
   11:30  โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–‘  45 %
   12:30  โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆ  51.5 % โ† midday peak
   13:30  โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–‘  47 %
   14:30  โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–‘โ–‘โ–‘  40 %
   15:30  โ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘โ–‘  18 %   โ† decline

Seasonal:
   Jan-Feb  โ–โ–โ–โ–โ–โ–  low (winter demand strong)
   Mar-Apr  โ–ƒโ–ƒโ–ƒโ–ƒ    8.5 % start
   May-Jun  โ–†โ–†โ–†โ–†    pre-monsoon peak
   Jul-Aug  โ–ˆโ–ˆโ–ˆโ–ˆ    51.5 % BLACK MONTH (monsoon demand drop + ISTS bottleneck)
   Sep-Oct  โ–†โ–†โ–†โ–†    slight recovery
   Nov-Dec  โ–ˆโ–ˆโ–ˆ     4 GW fully blocked (ACME Sikar only restarted 14.12.)
    

12. Stromfee India pitch ยท Market entry

Core arguments for Indian IPPs

  1. Legally STRONGER than DE: NO ยง51 threshold โ€” Must-Run status makes EVERY unlawful curtailment compensable. APTEL 02.08.2021: 100 % PPA tariff post-2021 + 9 % interest + 60-day payment.
  2. Acute Rajasthan pain: 4 GW curtailed, 100 % midday peak from Dec 2025, NSEFI estimate โ‚ฌ76 M. CERC consolidated hearing 27.11.2025.
  3. Competitor gap confirmed: No Indian provider does specialised curtailment forensics. FusionSolar/Power Factors/Meteocontrol-IN are O&M focused.
  4. Data access: Grid-India + 29 SLDCs publish PDF/web UI, RTI requests possible. IEX/PXIL spot prices. Open-Meteo + Lotter pattern directly portable.
  5. Addressable market: 132 GW installed, Top-15 IPPs for direct outreach. Plants 50-500 MW ร— 5-35 Cr INR/year loss = potential fee scale.

Recommended first-contact sequence: (1) NSEFI CEO Subrahmanyam Pulipaka direct with Stromfee pitch and Rajasthan case proof. (2) Parallel CERC petitions tracker monitoring. (3) Mini-pilot with 2-3 Rajasthan IPPs (Adani Green RJ SPV, ReNew RJ SPV, ACME Bhadla-IV SPV). (4) Counsel partnership with Trilegal OR SKV Law Offices.

11. Sources (35+)

India detail page ยท Part of Stromfee World Study 2026 ยท As of 16 May 2026
Language: English ยท DE version: /studie/indien-pv-curtailment.html
World study: /en/studie/pv-dv-weltweit-2026.html
Request Stromfee forensics โ†’
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