en.Wedoany.com Report on Mar 27th, French renewable energy company Akuo has announced plans to construct an 80 MW battery energy storage system in Portugal. The project aims to enhance grid flexibility, address challenges arising from Portugal's renewable energy expansion, and meet growing nighttime electricity demand. The system is expected to provide rapid response capabilities, alleviate grid congestion, and support the integration of a higher proportion of solar and wind energy.

This battery energy storage system can operate in multi-purpose modes, providing energy shifting, frequency response, reserve services, and localized grid support at constrained nodes. Akuo points out that the primary value stems from software and dispatch optimization, which coordinates revenue streams, manages battery degradation, and meets availability requirements, thereby improving financing prospects through capacity and ancillary service revenues.

The system will store surplus renewable energy generated during the afternoon and evening, discharging it during nighttime peak demand periods to reduce the gap between renewable energy output and electricity demand. Through rapid charging and discharging, it helps address solar ramp-downs and wind variability, avoids steep net load changes, and quickly stabilizes voltage and system frequency.

Furthermore, the system adds controllable, dispatchable resources, enabling operators to handle outages, forecast errors, and unexpected variations, reducing reliance on slower fossil fuel or hydroelectric units. It also contributes to ancillary services such as operating reserves, alleviates stress on overloaded transmission paths, facilitates the integration of more renewable energy, and provides reliable discharge during peak hours to enhance supply security.

Through sophisticated dispatch and performance tracking, the system helps monetize flexibility while employing operational strategies that extend its service life, ensuring long-term reliability. This project is expected to bring significant improvements to the Portuguese grid, supporting its transition to sustainable energy.