A Gridbeyond study says that success in saturated battery storage markets requires software-driven agility and real-time decision-making.
Battery storage operators in Texas and California are confronted with a new reality: the old playbook of “Charge Low, discharge high” is no longer enough.
Gridbeyond’s second quarter 2025 report “Where is α? “thinks that the path to surplus returns now depends on how quickly and seamless operators advanced software, analyzes and tightly integrated operations can use.
The report breaks how earning income in the storage markets of the Electric Reliability Council of Texas (ERCOT) and California Independent System Operator (CAISO) is fundamental under the weight of rapid capacity growth.
Since 2023, Ercot has added 5.6 GW to new storage capacity for batteries, while Caiso has added 7 GW. That influx of storage means “the profit margins of basic strategies fall,” notes Gridbeyond, because more batteries chase the same price signals, resulting in saturated additional service markets.
Now operators must be able to run if they want to benefit from late peaks of the energy price. Now Alpha comes out of agility, because peak events can happen every day of the week. Gridbeyond also notes that the most lucrative intervals are both more difficult to predict and shorter risen.
But static optimization and conventional predictions miss these new windows routinely.
What can help are more integrated market platforms that combine real-time data with direct links to battery-eum software, which make it all easier for operators to move resources quickly to meet price signals.
Managing State of Charge (SOC) is now a critical distinguishing factor, because batteries that come early on energy cannot keep track of competition when the question peaks. The report showed that some operators saw their monthly income rise nearly 25% when they integrated physical and financial day-Ahead energy offers to help optimize bidding.
The Caiso market, although just as competitive, is a completely different landscape.
In the past two years, the report notes that more than seven GW of new batteries have come online. Although the classic “duck curve” and the steep evening slopes are still left, Gridahead pointed out that day-light on real-time price spreads have become more variable.
Adjusting this variability requires that battery operators not only the demand forecast parks with predictions for solar operators, but also with optimization strategies that can give a more holistic view of how and when batteries should be implemented.
Nevertheless, the report of the Gridbeyond report is that integration is mission -critical at every level.
Linking OEM software to internal qualified planning entities (which submit offers to buy or sell electricity) will give operators the real-time flexibility that is needed to make the necessary market movements at the last minute to help them benefit from price peaks.
That operational agility, the report notes, in particular when operators can change their bids or SOC goals just before the deadline, the difference can be between underperforming and other operators in saturated markets.
This content is protected by copyright and may not be reused. If you want to work with us and reuse part of our content, please contact: editors@pv-magazine.com.
