ACME Solar signs 300 MW FDRE PPA with SECI at ₹6/unit
- Signed PPA for 300 MW / 1,200 MWh assured peak supply with SECI
- Tariff fixed at ₹6 per unit with effective date October 6, 2026
- Under-construction contracted portfolio rises to 4,310 MW
- Project uses integrated Solar and BESS technologies for evening peak supply

*this image is generated using AI for illustrative purposes only.
ACME Solar Holdings Limited has signed a Power Procurement Agreement (PPA) with the Solar Energy Corporation of India (SECI) for a 300 MW / 1,200 MWh assured peak supply project. The deal, executed through subsidiary ACME Greentech Twenty Pvt Ltd, carries a tariff of ₹6 per unit and became effective on October 6, 2026.
This agreement falls under SECI's Flexible Dispatchable Renewable Energy (FDRE) IX tranche. The project is designed to supply dispatchable clean power during evening and night-time peak demand hours, addressing grid stability concerns as renewable energy penetration increases in India's power mix.
Project specifications and technology
Under the terms of the PPA, ACME Solar will supply 4 MWh per MW of contracted capacity for four hours daily during non-solar hours. The company must maintain a minimum availability of 90% on a monthly basis. To meet these obligations, the project will integrate a combination of Solar and Battery Energy Storage System (BESS) technologies. The setup will utilize existing night-time connectivity available with the company.
| Parameter | Details |
|---|---|
| Capacity | 300 MW / 1,200 MWh |
| Tariff | ₹6 per unit |
| Effective Date | October 6, 2026 |
| Tranche | SECI FDRE-IX |
| Availability | Minimum 90% monthly |
Portfolio expansion
Following this signing, ACME Solar's under-construction contracted portfolio stands at 4,310 MW out of a total under-construction contracted capacity of 5,380 MW. This addition reinforces the company's position in the flexible renewable energy segment.
What the numbers show
The new PPA adds significantly to ACME Solar's operational pipeline. With an operational capacity of approximately 3,123 MW and 4.96 GWh of BESS capacity already in place, the new 300 MW FDRE project represents a substantial increment to its contracted base. The integration of BESS with solar generation allows the company to monetize renewable energy during peak pricing windows, distinct from traditional daytime-only solar sales. The tariff of ₹6 per unit provides visibility on revenue streams for this specific high-value time block.
Historical Stock Returns for ACME Solar Holdings
| 1 Day | 5 Days | 1 Month | 6 Months | 1 Year | 5 Years |
|---|---|---|---|---|---|
| +0.59% | -1.94% | -1.91% | +42.63% | +46.12% | +61.96% |
How will the ₹6 per unit tariff for dispatchable power compare to ACME Solar's existing average tariffs, and what impact will this have on overall project IRRs?
What specific supply chain constraints or cost fluctuations in Battery Energy Storage Systems (BESS) could threaten the economic viability of the 1,200 MWh storage component before the October 2026 effective date?
How does ACME Solar plan to manage the operational risks associated with maintaining a strict 90% monthly availability guarantee for a hybrid solar-BESS asset during peak evening hours?

































