ACME Solar Holdings has secured a 50 MW Firm and Dispatchable Renewable Energy (FDRE) project from Tata Power-D through a competitive bidding process. The company received a Letter of Award (LoA) for the project at a tariff of INR 4.43 per unit under a larger 250 MW FDRE tender floated by Tata Power Company Limited.

Project Specifications and Requirements

The awarded project comes with stringent operational requirements that ACME Solar must meet throughout the contract period. The project will be required to maintain a minimum annual Capacity Utilisation Factor (CUF) of 40 per cent, ensuring consistent energy generation throughout the year. Additionally, the project must ensure four hours of peak-hour supply with 90 per cent monthly availability, demonstrating the dispatchable nature of the renewable energy solution.

The project will combine multiple renewable energy technologies, including solar and Battery Energy Storage System (BESS), to meet the supply obligations. This hybrid approach allows for firm and dispatchable renewable energy delivery, addressing the intermittency challenges typically associated with renewable energy sources.

Contract Terms and Timeline

The Power Purchase Agreement (PPA) has been structured for a tenor of 25 years, providing ACME Solar Holdings with long-term revenue visibility. The commissioning timeline for the project is set at 24 months from the signing of the PPA, establishing a clear delivery schedule for the renewable energy infrastructure.

The FDRE tender was conducted under tariff-based competitive guidelines (TBCB), with an e-reverse auction taking place on August 13, 2025. This competitive bidding process ensured transparent price discovery for the renewable energy project.

Company Background

ACME Solar Holdings is described as a leading integrated renewable energy player with a diversified portfolio spanning solar, wind, storage, FDRE, and hybrid solutions. The company currently operates with an operational capacity of 2,890 MW, positioning it as a significant player in India's renewable energy sector. Tata Power-D, the project awarder, is a licensed electricity distribution company and forms part of Tata Power Company Ltd.

The distribution company's role in procuring firm and dispatchable renewable energy reflects the growing demand for reliable renewable energy solutions in the Indian power sector.

Technology Integration

The project represents an advanced approach to renewable energy delivery through the integration of solar generation with Battery Energy Storage System technology. This combination enables the project to provide firm and dispatchable power, addressing grid stability requirements while delivering clean energy.

The BESS component enables energy storage during peak generation periods and dispatch during peak demand hours, thereby fulfilling the four-hour peak-hour supply requirement specified in the contract terms. The 90 per cent monthly availability requirement ensures high reliability standards for the renewable energy supply, making it comparable to conventional power generation sources in terms of dependability.

This level of availability, combined with the minimum 40 per cent annual CUF requirement, establishes performance benchmarks that the project must consistently achieve throughout the 25-year contract period.

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