Acme Solar Holdings Secures 300 MW Capacity In SECI's Peak Power Tender

Market snapshot: Acme Solar Holdings Limited has emerged as a successful bidder in Solar Energy Corporation of India's (SECI) e-reverse auction, securing 300 MW of contracted capacity. The project was awarded under the SECI-FDRE-IX tender for the Selection of RE Power Developers for assured Peak Supply of 6,000 MWh from ISTS-Connected Renewable Energy Projects in India.

Data Snapshot

• Acme Solar Holdings has secured 300 MW of contracted capacity to supply 1,200 MWh of peak-hour power.
• The capacity was secured at a discovered tariff of ₹6.00/kWh under SECI's e-reverse auction.
• The project will increase Acme Solar's PPA-signed battery energy storage pipeline to approximately 15 GWh.

What's Changed

• Acme Solar's PPA-signed battery energy storage (BESS) pipeline will increase to approximately 15 GWh, adding 1.2 GWh of new capacity.
• The company's contract portfolio under execution expands beyond the 3,880 MW reported at the end of July 2026.

Key Takeaways

• ACME secured 300 MW contracted capacity in SECI's e-reverse auction (SECI-FDRE-IX) at a discovered tariff of ₹6.00/kWh to supply 1,200 MWh of peak power.
• The project is highly development-ready as the company has already obtained grid connectivity and secured a substantial portion of the required land.
• Upon executing the PPA, the project will add 1.2 GWh to ACME's battery storage portfolio, lifting the signed BESS pipeline to roughly 15 GWh.

SAHI Perspective

The discovered tariff of ₹6.00/kWh highlights the structural premium commanded by Firm and Dispatchable Renewable Energy (FDRE) and storage-backed solutions, contrasting with standard flat solar tariffs. SECI's aggregation of grid demand is establishing peak supply as a high-margin opportunity for leading IPPs. By securing grid connectivity and land in advance, ACME mitigates key execution bottlenecks, boosting operational timeline predictability.

Market Implications

The success of the SECI-FDRE-IX tender highlights the maturity of storage arbitrage in the Indian renewable energy grid. Structural designs requiring multi-hour storage capacity are helping deepen power exchange liquidity and validating the arbitrage model. This win reinforces the strategic shift of utility-scale players away from simple intermittent generation toward high-value, dispatchable storage systems.

Trading Signals

Market Bias: Bullish

This win expands ACME's high-margin battery storage pipeline to approximately 15 GWh at a solid tariff of ₹6.00/kWh, leveraging pre-secured land and grid connectivity. This builds on its positive operating trajectory, which delivered ₹190 crore in EBITDA from storage systems YTD-FY27.

Overweight: Renewable Energy, Power Utilities, Battery Storage

Trigger Factors:

• Execution of the formal Power Purchase Agreement (PPA) with SECI.
• Timelines regarding construction and commissioning of the 1.2 GWh BESS project.
• Movement of battery storage cell prices, which dictates final operational margins.

Time Horizon: Medium-term (3-12 months)

Industry Context

The Indian power grid is increasingly prioritizing dispatchable and round-the-clock clean energy. New frameworks like Virtual Power Purchase Agreements (VPPAs) and storage-tied FDRE tenders are becoming crucial for managing peak load curves. This is especially relevant given the emerging 'duck curve' trend, which drops power exchange prices during the day but creates highly profitable spikes during evening peaks.

Key Risks to Watch

• PPA Execution Risk: Profitability is dependent on the timely execution of the formal PPA.
• Supply Chain Pricing: Fluctuations in battery storage system component costs could pressure execution margins.
• Grid Transmission delays: Any unforeseen delay in final grid synchronization could prolong overall timelines.

Recent Developments

On July 30, 2026, ACME reported its results update, highlighting that it commissioned 3.6 GWh of battery storage YTD-FY27, generating ₹230 crore in revenue and ₹190 crore in EBITDA, with 85% of its BESS capacity tied up at ₹8–10/unit. On July 21, 2026, ACME executed a PPA with SECI for a 300 MW ISTS-connected wind-solar hybrid project under Hybrid Tranche IX. On May 26, 2026, ACME's subsidiary executed a PPA with SECI for 300 MW under Firm and Dispatchable Renewable Energy (FDRE) Tranche VII.

Closing Insight

ACME Solar's success in securing 300 MW under the SECI-FDRE-IX peak power tender underlines its growing operational leadership in grid-scale storage solutions. With an advanced pipeline expanding to 15 GWh and reduced project risk via pre-secured land and connectivity, ACME is uniquely positioned to exploit the grid's premium peak-power dynamics.

High Performance Trading with SAHI.