India’s tariff-based aggressive bidding (TBCB) framework for renewable power initiatives has performed a pivotal function within the nation’s power transition, offering trade gamers with a structured, market-driven mechanism to scale up clear power deployment whereas sustaining tariff affordability and making certain transparency in mission allocation. Nevertheless, fast technological developments and the necessity for better grid flexibility have highlighted gaps within the current bidding framework that should be addressed to realize India’s formidable power transition targets.
Due to this fact, in February 2025, the Ministry of Energy (MoP) amended the TBCB tips for procuring energy from wind, photo voltaic, wind-solar hybrid, and agency and despatchable renewable power (FDRE) initiatives with power storage methods (ESSs), and launched tips for pumped storage initiatives (PSPs). A number of important adjustments have been launched, together with revised compliance necessities for mission builders, stringent contractual obligations and new monetary devices, with the purpose to make sure mission reliability.
A take a look at the latest amendments to the TBCB tips, their influence on personal and public offtakers, and their implications for renewable power improvement in India…
TBCB amendments for energy procurement from photo voltaic, wind hybrid and FDRE
The MoP’s amendments to the prevailing TBCB framework for energy procurement from photo voltaic, wind, wind-solar hybrid and FDRE initiatives embody a number of key provisions that redefine procurement methods and obligations for renewable power builders. For instance, in location-specific bids, procurers could specify the substation for renewable power initiatives related to the interstate or intra-state transmission system. Furthermore, if a generator fails to fulfill the minimal capability utilisation issue (CUF) outlined within the energy buy settlement (PPA) for 2 consecutive years, the CUF obligation will probably be recalibrated based mostly on the generator’s precise common efficiency over that interval. Additional, mills that fail to fulfill the minimal CUF should pay lump-sum damages equal to the shortfall for both 24 months or the remaining PPA interval, whichever is shorter. Defaulting on this fee will result in contract termination, thereby reinforcing strict adherence to efficiency commitments. This adjustment ensures a extra pragmatic evaluation of operational effectivity whereas selling accountability.
The amendments additionally mandate that provisions associated change in legislation should align with the MoP’s Electrical energy Guidelines, 2021, and its amendments. PPAs and energy sale agreements (PSAs) should be signed inside 30 days of the issuance of the letter of award (LoA). This era might be prolonged as much as 12 months, past which the LoA will probably be cancelled. Distribution licensees should strategy the suitable authority for tariff adoption inside 30 days of its discovery. Moreover, to strengthen monetary safety in bidding, the MoP has launched insurance coverage surety bonds as an alternative choice to conventional earnest cash deposits (EMDs) and efficiency financial institution ensures (PBGs). These bonds enable procurers to encash PBGs from defaulting mills, with the recovered quantity credited to the fee safety fund that should be maintained by the middleman procurers.
The up to date tips additionally prioritise technological and cybersecurity measures. Builders should set up GPS-enabled automated climate stations in compliance with requirements prescribed by related central authorities businesses. Procurers can also set up technical standards to encourage competitors whereas making certain that initiatives align with cybersecurity rules, together with compliance with directives issued by authorities overseeing cybersecurity within the power sector.
For photo voltaic and power storage initiatives, the rules emphasise the deployment of commercially established and operational applied sciences to minimise technological dangers and facilitate well timed mission execution. Any deviations from these tips should be authorized by the suitable electrical energy regulatory fee earlier than bidding commences. The fee is required to approve or mandate modifications to the doc inside 60 days.
Total, the brand new amendments purpose to accommodate rising renewable segments and deal with sectoral challenges, thereby enhancing investor confidence, streamlining mission execution and bettering grid integration. As well as, the revised framework offers clearer tips on monetary ensures and compliance, enforces strict timelines on PPA and PSA signing and reduces uncertainties for builders and lenders, fostering a extra steady market surroundings.
TBCB tips for procurement of storage capability from PSPs
The MoP has additionally launched TBCB tips for the procurement of storage capability from PSPs, offering a lot wanted coverage readability. Whereas tips for the procurement and utilisation of battery power storage methods are already in place, there have been no separate tips for PSPs. Contemplating the distinct necessities of PSPs with respect to land acquisition, permits and clearances, mission timelines and efficiency parameters, separate tips for PSPs have been formulated to handle the distinctive nuances of PSP applied sciences.
The rules have launched two procurement modes. In Mode 1, procurers can develop PSPs at government-identified websites on a build-own-operate-transfer foundation for 25-40 years. The procurer will probably be answerable for all pre-feasibility actions earlier than handing over the mission to a profitable bidder by way of a particular goal automobile (SPV). In Mode 2, PSPs will also be developed at websites recognized by bidders, or based mostly on already commissioned or under-development initiatives, on a build-own-operate foundation for 15-40 years. For each modes, the monetary eligibility standards states that the web value/belongings beneath administration or investible funds should be no less than 20 per cent of the estimated capital value of the PSP for the monetary 12 months by which bids are issued. Furthermore, the EMD should be no less than 2 per cent of the estimated capital value, whereas the PBG should be no less than 5 per cent.
The bidding parameters embody two fashions. One, a tolling tariff mannequin by which the bidding will probably be based mostly on the storage cost (Rs per MW or kW per 30 days or 12 months), with or with out viability hole funding. On this case, the enter energy is organized by the procurer. Two, a composite tariff mannequin, the place the bidders quote a single tariff in Rs per kWh, masking each the price of enter energy and storage, with the enter energy being organized by the developer. In each fashions, the procurer has the choice to specify an escalating tariff construction.
As per the rules, bid submissions are anticipated inside 60 days for Mode 2 and 90 days for Mode 1 from the date of subject of bidding paperwork. In the meantime the analysis of technical bids, monetary bids and e-reverse auctions should be accomplished inside 120 days (Mode 2) and 150 days (Mode 1). Regulatory commissions are mandated to undertake tariffs inside 60 days of petition submitting and failure to take action permits the procurer to increase the mission’s scheduled provide graduation date accordingly. The small print have been summarised in Desk 1.
For interstate transmission system-connected initiatives, the minimal bid capability is 50 MW, whereas, for intra-state transmission systems-connected initiatives, it’s 10 MW. Exceptions exist for smaller initiatives within the north-eastern and particular class states. Furthermore, builders should exhibit related infrastructure improvement expertise over the previous 5 years, with monetary eligibility requiring a web value of no less than 20 per cent of the estimated capital value of the PSP. PPAs should be executed inside six months of the LoA. As well as, the rules introduce provisions for compensating builders within the case of transmission constraints or grid safety points. The rules additionally point out technical and efficiency necessities for PSPs, which have been summarised in Desk 2.
Challenges and the longer term outlook
India’s renewable power sector has witnessed important adjustments in its tariff willpower framework – from fastened feed-in tariffs to e-reverse auctions, and within the case of wind, even to a closed bidding mechanism. These reforms have helped scale back tariffs, enhance transparency and scale up capability. Nevertheless, these transitions haven’t been with out challenges. Among the points which have typically emerged are delays in PPA and PSA signing, lack of strict high quality and cybersecurity compliance and well timed fee points. The revised TBCB tips goals to handle these points.
By mandating stricter timelines for PPA finalisation and tariff adoption, the amended tips are anticipated to cut back execution delays and facilitate quicker contract finalisation. Additional, the brand new coverage tips impose stricter compliance obligations on builders, significantly with respect to CUF adherence and monetary ensures, thereby addressing high quality issues. Builders might want to undertake superior forecasting instruments and operational methods to mitigate these dangers and meet the CUF targets.
An notable replace has been the necessary deployment of GPS-enabled automated climate stations and compliance with cybersecurity rules, that are anticipated to additional modernise the sector. Moreover, the introduction of options to EMDs and PBGs within the type of insurance coverage surety bonds goals to enhance liquidity for builders. Nevertheless, the long-term viability and success of those bonds stay to be seen.
Internet, web, it’s encouraging that the federal government has give you coverage updates to the TBCB tips according to the altering sector dynamics, together with the elevated adoption of PSPs, hybrid and FDRE initiatives. These reforms purpose to offer better coverage readability, improve effectivity and transparency, and scale back dangers for stakeholders.
