Who We Are
CLEARBOOK Energy Solutions is a Global Virtual Power Plant (VPP) Operations Business that Builds, Manufactures, Optimizes, Aggregates and Deploys Battery Energy Storage Systems across Commercial, Municipal and Residential Sectors
CLEARBROOK Energy Solutions
Clearbrook Energy Solutions is a wholly owned subsidiary of Clearbrook LLC.
Since 2004, Clearbrook LLC has earned a reputation as one of the most trusted global asset management and advisory firms. With $13B+ in assets under management and advisement, four SEC‐registered subsidiaries, and a presence across North America, Asia, and Europe, we deliver forward-looking investment solutions to institutions, families, and visionary investors worldwide. Our culture is entrepreneurial, collaborative, and high-growth, with employee benefits ranked among the top 5% in the U.S.
Clearbrook Energy Solutions has a unique market advantage, leveraging Clearbrook LLC’s balance sheet, personnel, advisory expertise, and global value-add relationships with institutional investors, energy partners, sovereign wealth funds, and governments.
Our Leadership Team
Elliott Wislar
Chairman and CEO Clearbrook, LLC
Elliott Wislar is the CEO and Founder of Clearbrook, a $13 billion global asset management and advisory firm with a strong presence across Asia and Europe. He has created strategic partnerships with LG Nova, MUFG, and launched three NYSE-traded ETFs. Previously, he held senior roles at UBS, Fleet Bank, and The Boston Company, helping grow institutional AUM from $6B to $226B. Elliott is also an accomplished sailor, a published author, and holds a BA from the University of Arizona and an MBA from Thunderbird School of Global Management, with advanced studies at Kellogg.
Bruce Sher
CEO Clearbrook Energy Solutions
Bruce A. Sher was the Managing Director of ThinQ Energy, with a career spanning leadership roles at Selex ES, Viridity Energy (acquired by Ormat), and Grid Symphony. At Constellation NewEnergy, he drove $1B in annual sales growth through innovative energy programs. Bruce has founded and led successful smart grid and energy management businesses, and is a recognized speaker at clean tech conferences. He holds a B.S. in Physics from the University of Michigan and an M.S. in Energy Management from the University of Pennsylvania.
Nick Herrington
Senior Vice President of Technology and Energy Storage Services
Nick Herrington has over 15 years of experience in renewable energy, specializing in energy storage systems (ESS) and solar power. He has worked as a Senior Sales Engineer at LG Electronics and held leadership roles at Baker Electric and Independent Energy Solutions, overseeing large-scale projects and driving strategic initiatives. Known for combining technical expertise with strategic insight, Nick delivers scalable, sustainable solutions that help organizations achieve energy independence, reduce costs, and advance renewable energy adoption.
Bill Shevlin
Managing Director
Bill Shevlin is a Solar and Microgrid Solutions Specialist with deep expertise in designing and delivering resilient, end-to-end energy systems. He specializes in custom microgrid architecture, solar PV engineering, and energy storage integration for commercial, residential, and utility-scale projects. Bill has led the development of microgrids for critical facilities, overseeing power generation, distribution, and advanced control systems. His experience spans grid interconnection and islanding controls, SCADA implementation, virtual power plant (VPP) integration, and energy management strategies including demand response and power quality optimization. Bill has extensive experience in negotiations generating over $3B in opportunities. He developed and negotiated over $1B in high-margin business over the past 15 years.
John Iannone
Managing Director
John Iannone is a former Navy Nuclear Submariner and senior executive with 35+ years of leadership across engineering, operations, and manufacturing. He has led large-scale product development, facility construction, and automation initiatives in industries including data centers, pharmaceuticals, steel, and consumer goods. John is known for building high-performance teams, driving cultural transformation, and delivering complex programs—often exceeding $60M—on time and within budget. He has managed operations of 1,000+ employees for global organizations including IBM, Nucor, and Johnson & Johnson. John holds an MBA from Jacksonville University and a Bachelor of Applied Science from Thomas Edison University.
Our Top Advisors
Tim Hopcraft
Tim Hopcraft is an Australian entrepreneur and investor based in the UAE, currently serving as Chief Executive Officer of ANC Energy Inc. With more than 18 years of leadership across energy storage, advanced materials, and infrastructure, Tim has spearheaded the commercialization of solid-state Battery Energy Storage Systems (BESS) and graphene-enhanced supercapacitors, advancing technologies from concept through to utility-scale deployment.
John Cronin
John Cronin is an American inventor and intellectual property strategist, and the chairman and CEO of ipCapital Group, which he founded in 1998. Before launching ipCG, he spent 17 years at IBM, becoming one of the company’s most prolific inventors with 100+ patents and around 150 patent publications. At IBM, he created and ran the “Patent Factory,” a program that systematized invention harvesting and portfolio building.
Barry Schumaker
Barry Schumaker is Chief Financial Officer of ANC Energy Inc. and a senior institutional investment executive with three decades of experience in emerging markets and alternative asset management. His background spans hedge funds, private equity, M&A, IPOs, real estate, and aviation finance, underpinned by extensive expertise in fundraising, risk management, and cross-border deal structuring. Fluent in English and Russian, with additional proficiency in Japanese and Bahasa Indonesia, Barry brings a global perspective to both corporate finance and strategic execution.