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Watt It Takes
with Cindy Taff

Cindy Taff is the CEO of Sage Geosystems. Sage Geosystems is pioneering Pressure Geothermal—a new category of geothermal energy that delivers grid-scale power and long-duration energy storage virtually anywhere. Emily spoke to Cindy about her journey; from growing up in Los Angeles and Louisiana, to spending 36 years climbing the corporate ladder at Shell, and what ultimately motivated her shift to geothermal. She shared how her daughter encouraged the transition, and why geothermal stood out as the place where her skills could have the greatest impact. That path led her to Sage Geosystems, which is now building its first commercial geothermal energy storage facility in Christine, Texas. The company has raised $62 million and has secured key collaborations with the U.S. Department of Defense and Meta, including a power purchase agreement for at least 150 megawatts of geothermal power to support Meta’s U.S. data centers.

 
 
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Sponsored By

 
 
 
 
 
 
Cindy Taff

CEO
Sage Geosystems
 
 
 

Cindy D. Taff serves as the Chief Executive Officer of Sage Geosystems, where she is mission focused on deploying Sage’s proprietary geothermal technology across the globe. Before joining Sage, Cindy spent 36 years at Shell where she served as the Vice President of Unconventional Wells & Logistics. Cindy's contributions to the energy sector have been widely recognized. In 2024, she was honored as one of TIME's 100 Most Influential Climate Leaders in Business, acknowledging her pivotal role in driving business climate action. She has also shared her expertise at prominent industry events, including CERAWeek and SXSW, discussing the transformative potential of geothermal energy.
 
 
 
“My advice is if you love it, stick with it. I think sometimes women will get intimidated because they're one of just one or two women in a room full of men and so there's an intimidation factor. Maybe it's easier said than done, but don't get intimidated. You need to be there."
 
 
 
 
 
 
 
 
 
 
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