If you’re in the energy storage game, you probably already know that a few key days can make or break your revenue for the year. But are you fully prepared to take advantage of them? That was the hot topic in our latest webinar with Energy Storage News.
Matt Drazenovich and Ryan Franks from TWAICE shared insights on how operators can optimize their battery energy storage systems (BESS) and maximize profits. Here’s a rundown of what you missed.
The energy storage world is buzzing about data. At the Energy Storage Summit EU, a lot of conversations — whether about project planning, financing, asset management, or revenue stacking — eventually circled back to data. And for good reason. Having the right data (and knowing how to use it) can mean the difference between a high-performing battery storage system and one that’s quietly bleeding money.
Here’s the deal: Energy storage revenues aren’t spread evenly throughout the year. Instead, they tend to spike on a handful of key days.
Take Great Britain, for example. In 2023, high-revenue days were somewhat spread out. But in 2024? The big money was concentrated in December. Over in Texas, peak revenue shifted from the summer months to late spring in 2024.
What does this mean for you? If your energy storage system isn’t in peak shape for these critical days, you’re leaving money on the table.
Three key problems can seriously hurt your energy storage system’s performance—and your bottom line. Let’s break them down.
Battery cells don’t always discharge evenly. When some cells hit zero before others, your system effectively loses capacity. One TWAICE customer with a 300MWh system was losing 18MWh per day (over $1 million annually) because of this issue. With analytics, they quickly pinpointed and replaced six defective modules, solving the problem.
Sometimes, parts of a system stop working without setting off major alarms. One operator in Central America found that an entire string was offline—without any clear alerts—causing 1.4MWh of lost capacity. Using analytics software, they identified and fixed the issue, bringing back lost revenue.
If your system isn’t hitting its promised power levels, it can trigger penalties and missed revenue opportunities. One ERCOT operator was facing power de-rating due to inaccurate State of Charge (SoC) readings and loose connectors. They identified faulty sensors and rebalanced their system to restore full capacity with the help of analytics.
Earlier this year, we also ran a survey to get a pulse on the industry, and the results were eye-opening:
In short: BESS is still a young industry, and many operators are struggling to keep their systems running smoothly. The good news? Using and analyzing the right BESS data can provide the insights needed to stay ahead of these challenges.
So what can you do to ensure your energy storage system is always ready for those peak revenue days? Here’s what we recommend:
At the end of the day, BESS operation is about more than just hardware—it’s about using data to maximize performance and profits. Because when those peak revenue days roll around, you want to be ready.
If you want to learn more, check out the TWAICE Energy Analytics Product Tour or request a 1:1 demo to discuss your specific needs!
Join our next product webinar and discover the latest features designed to support BESS owners and operators, improve performance, ensure warranty compliance, and maximize revenue.
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