Energy storage
10 CTOs in Energy Storage
These ten executives hold the chief technology officer title at energy storage and battery companies. A reader can learn how CTOs lead technology organizations in energy storage businesses.
Professionals to explore
01—10Andrew Tanner
LinkedInExperience: Chief Technology Officer · Yotta Energy
Chief Technology Officer at Yotta Energy since 2023; the profile describes Yotta Energy as providing scalable, efficient energy storage solutions, including the Yotta Block and microinverters. Former VP Product & Strategy at Yotta Energy (2019–2023) and VP Global Partnerships (GreenSync was acquired by Intellihub) at GreenSync (2018–2020), and a Mentor at Cleantech Open since 2016.
Armin Michel
LinkedInExperience: Chief Technology Officer · AQUABATTERY
Chief Technology Officer at AQUABATTERY since November 2023; the profile says the CTO role is spearheading the development of an aqueous acid-base flow battery that uses reversible water dissociation technology. Former Director R&D (2018–2023) and Senior Technical Consultant (2018) at Voltea, and former Director R&D at Mitsubishi HiTec Paper Europe (2017).
Christopher Phebus
LinkedInExperience: Chief Technology Officer · Hydrostor
Chief Technology Officer at Hydrostor since 2023; the profile describes Hydrostor as specializing in long duration energy storage technology. Former Senior Vice President of Engineering & General Manager of Kelly Slater Wave Co (2018–2023), Executive Vice President of Engineering at Ocean Power Technologies (2018) and Executive Engineering Director - Flow & Process Technology and Reciprocating Compression at GE Oil & Gas (2015–2018).
Craig Horne
LinkedInExperience: Chief Technology Officer · Energy Vault
Chief Technology Officer at Energy Vault since March 2026; the profile says the role brings together technology, engineering and operational execution across energy storage and power generation. Former Senior Vice President, Advanced Energy Solutions (2024–2026) and Vice President, Advanced Energy Solutions (2022–2024) at Energy Vault, and a Senior Consultant at Kainos Consulting, LLC since 2019.
Erik A. Wu
LinkedInExperience: Chief Technology Officer · UNIGRID Battery
Chief Technology Officer at UNIGRID Battery since 2020; the profile describes commercializing, developing and deploying sodium-ion batteries that are used in high power 12V packs and stationary storage batteries. Former Process Development Engineer I at SunPower (2014) and former R&D Technician at Nanosolar (2012–2013).
Majid Keshavarz, Ph.D.
LinkedInExperience: Chief Technology Officer · EnerVenue
Chief Technology Officer at EnerVenue since 2020; the profile describes EnerVenue as building simple, safe, maintenance-free energy storage and lists energy storage design and development and strategic technology planning as focus areas. Former Chief Technology Officer and Vice President at Imergy Power Systems (2006–2016) and Vice President, Research and Development at Natron Energy (2017–2019).
Marko Reponen
LinkedInExperience: Chief Technology Officer · Grid Energy Storages (G.E.S.)
Chief Technology Officer at Grid Energy Storages (G.E.S.) since June 2026; the headline describes building European BESS systems with a focus on system architecture, productization, safety, scalability and lifecycle engineering. Former Principal Engineer (2025–2026) and Senior electrical design specialist (2024–2025) at Enico Oy.
Nastaran Krawczyk
LinkedInExperience: Chief Technology Officer (CTO) · CMBLU Energy
Chief Technology Officer (CTO) at CMBLU Energy since 2022; the headline describes CMBlu as a manufacturer of Organic SolidFlow Batteries for long duration energy storage. Former Head of Battery Power System - R&D Organic Batteries (2019–2022), Head of Stack Development - R&D Battery Technology (2018–2019) and Project Management New Battery Electrolytes (2015–2017) at CMBLU Energy.
Pasidu Pallawela
LinkedInExperience: Founder & CTO · StorTera
Founder & CTO at StorTera since 2014; the profile describes a focus on developing novel battery storage technologies, with inventions across power electronics, electrochemistry, artificial intelligence and energy storage and multiple granted patents. Former Power Electronic Design Engineer at GE Power (2011–2014) and former Lead Engineer at Siemens (2007–2008).
Paul Durkee
LinkedInExperience: Chief Technology Officer · Peak Energy
Chief Technology Officer at Peak Energy since February 2026 and VP of Engineering, Energy Storage Systems there since 2023; the profile describes Peak Energy as designing and deploying next-gen sodium-ion energy storage. Former Head of Hardware Technology at Lyft (2020–2023), Senior Manager, Battery and Charging Systems at Uber (2018–2020) and Technical lead - Battery at Tesla (2015–2018).
Choose the right perspective
Match the person's technology to yours, since developing a new battery chemistry differs from integrating battery storage systems or building long duration storage projects. Also consider company stage, because a CTO scaling toward commercial deployment and one at an earlier research-led company face different engineering choices.
Questions to take into the conversation
- 01How do you decide which storage chemistry or architecture to bet on, and what evidence do you need before scaling it?
- 02How do you move a storage product from lab results to a safe, certified system that customers will deploy?
- 03How do you structure research, engineering and manufacturing teams as an energy storage company grows?
Reaching CTOs in Energy Storage
How can I contact one of these CTOs in Energy Storage?
Pick one of the 10 people on this page and choose "Book a paid call", or describe your project to find others. You offer a fee for a 15-minute call or a written answer, Instant Expert finds the person's work email and sends the invitation, and they decide whether to accept. The list covers 10 companies, including Yotta Energy, AQUABATTERY and Hydrostor, based on profile data retrieved on October 3, 2026. Being listed here doesn't mean someone has agreed to take calls.
How much does it cost to reach CTOs in Energy Storage?
You choose the offer, starting at $5 per person. It includes Instant Expert's 20% fee, so an offer that pays the person $100 costs you $125. You're charged only when the person books the call or sends the answer.
What if they don't reply?
You pay nothing. Instant Expert sends follow-up reminders, and if the person hasn't booked or answered within 7 days, the request expires and any hold on your card is released. You can invite several of the 10 people on this list at once and cap your total spend, so you pay only for the ones who accept.
About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot and may describe past or present roles. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.
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