5 months ago
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Nearly 4,300 MW of star powerfulness capableness successful Rajasthan faces implicit daytime curtailment owed to inadequate transmission infrastructure, putting projects worthy astir ₹20,000 crore astatine risk, manufacture sources said.
A full of 26 star projects, developed by companies including Adani, ReNew, Serentica, Juniper, Zelestra, ACME and Amp Energy, are presently supplying powerfulness nether the Temporary General Network Access (T-GNA) framework, arsenic their associated transmission systems are yet to beryllium commissioned.
With disposable transmission margins exhausted, powerfulness procreation from these plants has been afloat curtailed during daytime hours, sources said.
According to information from the Northern Regional Load Despatch Centre (NRLDC), Rajasthan has astir 23 GW of commissioned renewable vigor capacity, portion transmission capableness stands astatine astir 18.9 GW.
This full transmission capableness has been allocated to projects with semipermanent General Network Access (GNA), leaving implicit 4 GW of capableness operating nether T-GNA without evacuation capability.
Industry officials said that contempt the commissioning of the 765 kV Khetri-Narela transmission line, lone astir 600 MW of further transmission capableness became available. At the aforesaid time, implicit 4,300 MW was simultaneously operationalised nether semipermanent GNA, efficaciously exhausting surplus margins.
In an email dated December 11, NRLDC withdrew the No Objection Certificates (NOC) for the 26 projects pursuing the commissioning of the enactment and operationalisation of semipermanent GNA.
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Developers warned that prolonged curtailment could severely interaction task viability and indebtedness servicing, and flagged the contented arsenic a increasing systemic hazard arsenic procreation capableness continues to outpace transmission additions successful renewable-rich States specified arsenic Rajasthan.
Industry representatives person urged the authorities to see short-term alleviation measures, including the implementation of a Special Protection Scheme to amended evacuation nether T-GNA, and the dynamic reallocation of unused GNA margins to T-GNA projects during debased utilisation periods. They besides called for the usage of Dynamic Line Rating (DLR) to maximise real-time transmission capableness and forestall renewable assets from turning stranded.
“Most of the 4.3 GW capableness is good wrong its notified connectivity commencement date. However, owed to hold successful commissioning of their ATS (Associated Transmission System), they are forced to present powerfulness nether T-GNA. There is besides nary ceremonial transmission done which a generator tin ascertain successful beforehand astir the further transmission capableness that volition beryllium disposable from commissioning of a caller line,” an manufacture authoritative said.
The projects facing 100% curtailment beryllium to multiple renewable powerfulness companies, including Adani, ReNew, Serentica, Juniper, Zelestra, ACME, and Amp Energy.
According to sources, the authorities had earlier said that commissioning of the 765 kV Khetri-Narela transmission enactment would importantly trim 55% highest hr curtailment faced by Renewable Energy (RE) generators operating nether the T-GNA arrangement.
“However, arsenic per the latest Grid India data, aft the summation of Khetri-Narela line, lone 600 MW of transmission capableness has been added successful the system. But the Central Transmission Utility of India operationalised 4,375 MW of capableness nether semipermanent GNA, which exhausted the full surplus disposable capableness and near astir nary transmission availability for projects operating nether T-GNA,” said different authoritative with a starring RE institution that operates star projects successful Rajasthan.
According to an email connection by NRLDC connected December 11, the No Objection Certificate to these 26 projects has been withdrawn owed to the commissioning of 765 kV Khetri-Narela D/C lines and the operationalisation of long- word GNA. “All supra plants are requested not to interruption the NOC successful presumption of Schedule oregon Actual,” the email said.
The officials said that with constricted evacuation disposable and nary visibility connected further transmission capacity, the 4 GW RE projects look a superior interest astir task viability and indebtedness servicing.
To debar stranded capacity, the manufacture has projected that a T-GNA-only attack tin beryllium adopted for each aboriginal RE capableness additions successful Rajasthan until evacuation margins are demonstrably available, the caput of a generating institution said.
“Of the 23 GW operational RE capableness successful Rajasthan, the transmission capableness is 18.9 GW. If this were equitably distributed among each generators, the highest hr curtailment would beryllium lone 15%, which connected an annualised ground would beryllium insignificant for each generators,” helium added.
According to manufacture officials, the authorities indispensable instrumentality contiguous short-term alleviation measures to forestall a implicit shutdown. For instance, the authorities tin look to instrumentality a Special Protection Scheme (SPS), which volition pb to a important betterment successful capableness for evacuation nether T-GNA.
SPS allows transmission corridors to run person to their existent carnal capability, arsenic it mitigates hazard from abrupt outages. It frankincense prevents cascading failures by shedding minimal pre-identified procreation lone erstwhile essential, alternatively of pre-emptively curtailing the full 4 GW.
They said that the authorities tin besides look astatine the mechanics of dynamic reallocation of unused GNA margins. During the wintertime play and debased procreation periods, determination is simply a anticipation that the capableness is not utilised afloat during highest hours for RE developers with semipermanent GNA. The borderline disposable from GNA should beryllium diverted to T-GNA projects for accrued evacuation corridors.
“We urge evaluating margins utilizing DLR principles and allowing real-time reallocation of unused GNA margins to T-GNA generators to maximise strategy utilisation,” said the caput of the generating company.
