QQ Engineering & Consulting

Appointed as the Owner's Engineering project for a utility-scale Solar PV plant from Torrent Power.     |     Independent and Quality Focused Engineering and Consulting.     |     Delivered Solar PV Plant- 1.7 GW Pre-Bid Engineering in Middle East.     |     Executed 33/400 kV Multiple Pooling Substation Pre-bid Engineering Support To One of India’s Leading Developer.     |     Executed 10 MW (AC) PV + BESS Project Engineering in USA.     |     Completed Multiple Project Power System Studies and Grid Integration Studies.
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Pre-Bid Advisory for 300 MW Solar PV + 150 MW/ 600 MWh BESS FDRE Project

Home / Pre-Bid Advisory for 300 MW Solar PV + 150 MW/ 600 MWh BESS FDRE Project

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Pre-Bid Advisory for 300 MW Solar PV + 150 MW/ 600 MWh BESS FDRE Project

QQ Engineering & Consulting (QQEC) has successfully concluded Energy System Advisory services for a landmark hybrid energy system procured under the NTPC’s Firm and Dispatchable Renewable Energy (FDRE) Tender. This project, a significant undertaking in India’s renewable energy landscape, technically integrates a 300 MW Solar Photovoltaic (PV) facility with a 600 MWh Battery Energy Storage System (BESS).

QQEC provided full-spectrum Solar PV and BESS sizing support; from performance modelling to BESS augmentation strategy, ensuring the project meets operational targets with zero penalties throughout its 25-year lifecycle.

Our Contribution: From Concept to Cost Decisions

QQEC’s Energy System Team provided a comprehensive suite of technical services for the hybrid energy system, including:

  • Tender Analysis: In-depth evaluation of the tender specifications to ensure full compliance and strategic positioning.
  • LCOE-Based Optimization: Iterative analysis and optimization of various Solar PV DC and Solar AC capacity configurations, driven by a Levelized Cost of Energy (LCOE) approach to maximize economic viability.
  • Look-Ahead Charging Philosophy: Development and implementation of a sophisticated Battery Energy Storage System (BESS) charging strategy that incorporates predictive analytics to minimize energy curtailment from the solar PV asset.
  • Long-Term BESS Sizing & Augmentation Planning: Sizing of the BESS with consideration for future augmentation strategies to ensure zero penalty exposure over the project's lifespan, accounting for potential degradation or increased dispatch requirements.
  • Penalty Risk Assessment & Mitigation Design: Comprehensive assessment of potential financial penalties under the power purchase agreement (PPA) and the design of specific mitigation strategies to minimize these risks.
  • PPA Terms Compliance: Ensuring that all technical designs and operational philosophies are in strict adherence to the terms and conditions outlined in the Power Purchase Agreement.

Smart Charging Philosophy

A core innovation developed by QQEC for this project was a dual-priority charging mechanism, designed to optimally utilize Solar PV and BESS capacity while strictly adhering to Power Purchase Agreement (PPA) terms. This mechanism prioritizes charging as follows:

  • Priority 1 – Surplus Utilization: The BESS primarily charges from solar power generated above the contracted project capacity. This critical strategy captures energy that would otherwise be curtailed, maximizing the overall utilization of the solar PV asset.
  • Priority 2 – Capacity-Efficient Charging: When surplus solar generation is unavailable, the BESS strategically charges from within the allowable generation range. This ensures the energy readiness of the BESS for dispatch without violating export limits stipulated in the PPA.

This sophisticated charging logic ensures highly efficient energy utilization, guarantees assured power supply during peak demand periods, and significantly contributes to the minimization of energy wastage from the intermittent renewable source.

No Penalty, Full Compliance - by Design

The optimized design ensures complete compliance with CUF requirements during both peak and off-peak hours. More importantly, through rigorous LCOE modelling, the system delivers low-cost energy without compromising performance.

No dependency on market-based RE purchases or grid charging ensures long-term energy independence for the client. This is a standout example of how hybrid systems can be technically robust and commercially viable.

Optimizing Today to Outperform Tomorrow

The NTPC Solar + BESS project represents a significant milestone in India’s renewable energy transition. It conclusively demonstrates the simultaneous attainability of sustainability, scalability and system reliability within a utility-scale renewable energy framework.

QQEC’s advanced engineering framework was instrumental in navigating the inherent complexities of this hybrid system. Our methodologies provided the clarity required for our client to deliver Firm and Dispatchable Renewable Energy (FDRE) that is both grid-compliant and future-proof, ensuring long-term operational viability and adherence to evolving energy demands.

At QQEC, we continue to engineer projects that push boundaries—because we believe the energy of tomorrow deserves nothing less.