Energy Storage News
News

How Fullmark Energy Runs BESS Profitably in CAISO With a Lean Team

TWAICE’s Matt Drazenovich and Fullmark Energy’s Chris Swanson on staying compliant and competitive in California’s storage market.

TWAICE / Mar 11, 2026
Download the content

twaicetech

TWAICE helped me to learn more about: How Fullmark Energy Runs BESS Profitably in CAISO With a Lean Team read article here:

www.twaice.com/newsroom/how-fullmark-energy-runs-bess-profitably-in-caiso-with-a-lean-team

#thinktwaice

CAISO is the largest storage market in the US, and there’s no easy money left in it. Matt Drazenovich and Chris Swanson tell the story of Johanna, a 20 MW/80 MWh battery in Santa Ana. They show how true SoC and real-time analytics help Fullmark’s team meet Resource Adequacy obligations, avoid over-bidding, catch telemetry issues before they turn into compliance problems, and operate closer to physical and contractual limits. The approach now covers Fullmark’s entire 290 MWh portfolio in Southern California.

Read the full article at Energy-Storage.news.

BESS PROS survey

Owning or operating BESS? Share your insights!

Share how you run, trade or finance grid-scale battery storage. Responses are anonymous, and only aggregated results will be published. Takes 10-12 minutes.

Take Survey
No items found.

Related Resources

May 25, 2026
May 25, 2026

Stephan Rohr on the Growing Complexity of Battery Storage Fleet Management

TWAICE CEO Stephan Rohr joins the Redefining Energy podcast to talk about why running battery fleets is getting harder, not easier.
March 19, 2026
March 19, 2026

How Analytics Are Changing Grid-Scale Batteries

Lennart Hinrichs talks battery basics, degradation and imbalances on Octopart’s CTRL+Listen podcast.
March 16, 2026
March 16, 2026

Why Battery Storage Needs Independent Analytics

On The Green Insider podcast, Lennart Hinrichs explains how independent analytics help BESS operators catch issues early and reduce risk.