Calibrant Energy Hires Sean Rheuben as Managing Director, Strengthening Leadership Team

NEW YORK, NY – November 29, 2023 – Calibrant Energy (“Calibrant”), a leading distributed energy company providing customized energy solutions at scale, is pleased to announce that Sean Rheuben has joined as Managing Director, Strategic Origination with Business Development. His appointment supports Calibrant’s mission to deliver straightforward and reliable clean energy solutions that simplify the journey toward net-zero facilities.

At Calibrant, Rheuben will apply his decades of expertise across advisory, structured finance, capital markets, origination, deal structuring, and mergers and acquisitions (M&A) to support Calibrant’s next phase of growth. His role will focus on origination and M&A, further building out Calibrant’s network of developers through which to acquire projects, portfolios, and identify pipelines for new business partnerships.

“Sean brings an entrepreneurial mindset and an impressive track record to his new role on our team at Calibrant,” said Matt Walz, CEO of Calibrant. “His experience will be invaluable as Calibrant continues scaling our ability to deliver net-zero solutions to our customers.”

Rheuben joins Calibrant from Altus Power, where he was the Co-Head of Origination and Head of Special Situations and is credited for helping that business deploy over $300m of equity into PV solar and battery storage. Prior to that, he held roles at Healthy Planet Partners and Syncarpha Capital.

“Calibrant has achieved rapid growth since inception because it excels at delivering tangible results for clients seeking clean energy solutions,” said Rheuben. “I am inspired by what this team has achieved and excited to jump in and get to work to deliver Calibrant’s multi-technology capabilities and flexible capital offerings to new partners.”

Rheuben holds a Master of Applied Finance from Macquarie University in Sydney, Australia and a Bachelor of Commerce and Bachelor of Laws from the University of New South Wales in Sydney, Australia. 

About Calibrant Energy

Calibrant Energy is a total energy partner that simplifies the transition toward energy decarbonization and decentralization. Calibrant Energy creates smart energy solutions for companies and institutions by integrating the latest energy technologies with adaptive financing. Calibrant Energy brings together global innovators in energy, Siemens Smart Infrastructure (SI), Siemens Financial Services (SFS), and Macquarie Asset Management (MAM), to deliver distributed energy solutions that help achieve commercial, sustainability and strategic goals. Siemens Financial Services also provides debt financing for Calibrant projects. Calibrant Energy’s mission is to provide reliable, high-quality, and transformational energy solutions with end-to-end services. For more information, visit


Anja Asato
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