⚡ Quick Read
- What happened: The CERC has officially adopted tariffs of ₹3.32-₹3.33/kWh for SJVN’s 1.2 GW solar-plus-storage projects, which include 600 MW/2.4 GWh of energy storage.
- Why it matters: The approval validates the competitive bidding process for hybrid storage projects and sets a clear regulatory precedent for trading margins in the absence of payment security.
- Watch: Future developments regarding the finalization of Power Sale Agreements (PSAs) with distribution companies and the implementation of payment security mechanisms.
Background and Context
In August 2024, SJVN floated a tender for 1.2 GW of interstate transmission system (ISTS)-connected solar power projects integrated with 600 MW/2.4 GWh of energy storage systems. The tender witnessed robust market participation, receiving bids for a cumulative capacity of 4.88 GW, indicating significant interest from developers in the hybrid storage segment. Following a competitive e-reverse auction, six prominent developers were selected: SAEL Industries (150 MW), Jindal India Renewable Energy (300 MW), Sembcorp Green (150 MW), JBM Renewables (150 MW), Fastnote Biofuels (100 MW), and Reliance NU Energies (350 MW).
Key Details
The Central Electricity Regulatory Commission (CERC) has formally adopted the discovered tariffs ranging from ₹3.32/kWh to ₹3.33/kWh. A critical point of contention during the approval process was the trading margin. While SJVN requested a margin of ₹0.07/kWh to be paid by distribution companies, the Commission ruled that the trading margin must be governed by existing regulatory provisions. Specifically, CERC capped the margin at ₹0.02/kWh in instances where adequate payment security mechanisms—such as escrow arrangements or revolving letters of credit—are not provided to the solar power generators.
The Commission justified its approval by noting that the bidding process adhered to government guidelines and resulted in efficient price discovery. Notably, these tariffs for 4-hour storage projects were found to be lower than similar tenders conducted by the Solar Energy Corporation of India (SECI) and aligned with the competitive benchmarks set by NHPC.
What This Means for EPCs and Developers
For EPC contractors and developers, this ruling provides much-needed regulatory certainty. The adoption of these tariffs allows project execution to proceed without the delay of waiting for the complete tie-up of Power Sale Agreements (PSAs). However, the strict stance on trading margins serves as a reminder of the importance of payment security. Developers must ensure that their financial structures and agreements with distribution companies are robust to avoid the lower margin cap of ₹0.02/kWh. The high oversubscription rate of 4.88 GW against the 1.2 GW capacity highlights a highly competitive landscape, requiring developers to optimize their supply chain and storage technology costs to remain viable under these tariff caps.
What Happens Next
With the tariffs now officially adopted, the focus shifts to the signing of PSAs and the commencement of project development. Stakeholders should monitor how SJVN navigates the payment security requirements to ensure they remain within the higher margin threshold. Additionally, the industry will look toward upcoming tranches of solar-plus-storage tenders, as the CERC continues to refine the regulatory framework for hybrid energy projects in India.
