# Alexandra Rasch Castillo

> Alexandra Rasch Castillo is the Guatemalan co-founder and CEO of Caban, an energy company combining battery storage, solar generation, software and energy services for telecommunications and other critical infrastructure. A former Rice University tennis player and Proterra engineering program manager, she holds engineering degrees from Rice and UC Berkeley. Based in Miami, she leads a business operating across the Americas, including a Digicel solar-and-storage partnership in Jamaica and expanding operations in Colombia.

- **Role:** Co-founder and CEO at Caban
- **Organizations:** Caban, Proterra, Rice University, University of California, Berkeley
- **Nationality:** Guatemalan
- **Education:** B.S. in Civil and Environmental Engineering, Rice University, M.S. in Civil and Environmental Engineering, University of California, Berkeley
- **Known for:** Represented Guatemala in Fed Cup tennis in 2007., Earned C-USA Commissioner’s Honor Roll recognition in 2009, 2010 and 2011 at Rice., Named to the 2020 Forbes 30 Under 30 Energy list.

## Career timeline

- **2007** — Played for Guatemala’s Fed Cup tennis squad.
- **2008** — Joined Rice University after training at the Nick Bollettieri Tennis Academy; won a Florida state singles championship while at Bradenton Prep.
- **2014–2018** — Worked at Proterra in technical product engineering and battery engineering program management.
- **2018** — Co-founded Caban with Brian Pevear.
- **2020** — Named to Forbes 30 Under 30: Energy, in the class announced in December 2019.
- **2021–2022** — Received ALPFA Entrepreneurial Icon recognition in consecutive years.
- **2023** — Caban announced $43 million closed toward an initial $51 million Series B target on January 4.
- **2025** — Caban and Digicel announced a solar-and-storage partnership targeting 511 Jamaican cell sites.
- **2026** — Reported nearly 400 operational sites in Colombia and more than US$16 million invested in that market.

## Achievements

- Represented Guatemala in Fed Cup tennis in 2007.
- Earned C-USA Commissioner’s Honor Roll recognition in 2009, 2010 and 2011 at Rice.
- Named to the 2020 Forbes 30 Under 30 Energy list.
- Recognized by ALPFA as an Entrepreneurial Icon in 2021 and 2022.
- Co-founded Caban and led its development of energy systems and services for critical infrastructure.

## Latest updates

- **2026-09** — In a September 24 interview, reported nearly 400 operational Colombian sites, over US$16 million invested, and Bogotá as Caban’s Latin American operations center; described expansion goals rather than completed deployments.
- **2026-04** — Caban announced participation in World Engineering Day for Sustainable Development 2026.
- **2026-03** — Listed as a speaker at MWC/4YFN Barcelona on climate technology and network resilience.
- **2025-11** — Caban and Digicel Barbados announced a solar mobile-site rollout, with groundbreaking scheduled for January 2026.

## Links

- Website: https://www.cabanenergy.com
- LinkedIn: https://www.linkedin.com/in/alexandra-rasch

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Profile page: https://yespress.io/alexandra-rasch-castillo
Published by YesPress — https://yespress.io
Last updated: 2026-10-23