Brian Fellon
Senior Vice President of Power Solutions at Expansive (Xpansiv) with a background in wholesale organized markets and energy trading; speaks about battery energy storage systems, market participation, and grid reliability.
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Feb 23, 2026 • 27min
How utilities are transitioning from short-term battery applications to long-term BESS planning
Brian Fellon, Senior VP of Power Solutions at Expansive, brings energy markets and trading experience to utility-scale battery planning. He discusses why digital control and algorithms are becoming central to battery value. He covers scaling from pilots to gigawatt storage, pairing batteries with renewables for firm power, and using storage to manage volatile demand and avoid costly grid upgrades.
