In this article, we discuss how the new TWAICE Performance Manager helps asset managers to proactively fix issues with underperforming system components, reducing revenue loss. This means they ensure maximum possible availability for their asset with minimal manual effort.
Battery Energy Storage Systems (BESS) have emerged as a game-changer in an era where the energy landscape is rapidly evolving, offering unparalleled opportunities to capitalize on the dynamic energy markets. These systems not only enhance the integration of renewable energy sources but also provide critical services such as energy arbitrage or frequency regulation that can turn fluctuations in energy demand into lucrative business prospects.
 Ensuring high BESS availability and performance is essential for unlocking multiple revenue streams in today's competitive energy sector and maximizing the opportunities of the energy market. However, multiple challenges stand in the way of a successful business case. The volatility of the energy market, significantly influenced by weather conditions, poses substantial challenges. Renewable energy sources like solar and wind, which are heavily dependent on weather patterns, can lead to unpredictable and fluctuating energy production. A recent analysis by Modo Energy showed that in 2023, in the ERCOT (Electric Reliability Council of Texas) market, 50% of revenue was made in just 13 days, all of which were during the summer months.
 Performance issues within the BESS, such as cell imbalances, can significantly hinder the ability of asset owners to capitalize on energy market opportunities, as they limit the amount of energy that can be charged and discharged. If one individual cell is only able to charge to, for example, 60%, this limits the performance of all other cells in the string. (Read this whitepaper for more detail about cell imbalances). If the system is experiencing problems with availability or performance on potentially high revenue days, the asset owners will leave considerable amounts of money on the table. However, pinpointing the root cause quickly and efficiently without the right tools is near-to impossible.
 In this article, we discuss how the TWAICE Performance Manager helps asset owners to address these challenges head on, ensuring that energy storage assets are not only reliable and efficient but also a significant source of revenue in the ever-evolving energy landscape.
The Performance Manager provides asset managers and engineers information to improve system availability & performance all in one glance, meaning they ensure maximum possible performance for their asset, so it meets revenue expectations with minimal manual effort. This is a much quicker and safer solution than spending hours on data analysis or relying on systems that do not provide the necessary level of granularity to pinpoint the specific underperforming component.
The Performance Manager focuses on two central elements that cause underperforming components: cell imbalances & thermal management.
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Dr. Matthias Simolka is Product Manager for Energy Solutions at TWAICE - the leading battery analytics software. Prior to joining TWAICE, Matthias was working several years in academic research focusing on the aging mechanisms of modern Li-ion batteries. His research combined material analysis down to the nanometer scale with system level observations to link the battery behavior to actual degradation mechanisms. After the academic research, Matthias worked for a few years as a Consultant focusing on the German energy market with special attention to renewable energies and energy storage technologies and their applications.