The global electricity sector is in the early stages of its most dramatic transformation in over a century. The rapid expansion of distributed energy, combined with the newfound availability of data and analytics for utilities, will reshape how the world generates, distributes and consumes power.


With market research, authoritative news, and events, GTM is the leading information services provider for this next-generation electricity system.


On July 19 2016, Verisk Analytics signed a definitive agreement to acquire GTM. Following the close of this transaction, Greentech Media will become part of Wood Mackenzie, a move that will immediately enable both GTM and Wood Mackenzie to provide broader market-leading analysis and insight.

GTM Research

GTM Research is the market analysis and advisory arm of Greentech Media. We provide strategic, timely insight on the technologies, markets and business models shaping the future of the electricity sector.

News and Online

Greentech Media delivers market analysis, business-to-business news and conferences that inform and connect players in the global clean energy market. Our coverage extends across the clean energy industry with a focus on solar power and the electric utility market's evolution. Greentech Media's industry-leading coverage is provided by world-class journalists and a global network of expert contributors, supported by a team of analysts from our market intelligence arm, GTM Research.


Greentech Media and GTM Research come together to produce all of Greentech Media’s industry conferences throughout the year. These summits provide a deep market intelligence platform and draw the most important industry players to convene, interact and learn from one another in concert with our team of analysts, executives and journalists.

Meet the Team

Scott Clavenna

Chairman, Greentech Media and Wood Mackenzie Power & Renewables

Scott Clavenna has been leading high-tech market research firms for over 15 years. In his capacity as a trusted analyst and consultant, Scott has helped dozens of companies enter and succeed in complex and intensely competitive markets worldwide. He also has authored more than 30 reports that helped define important emerging market segments in optical and broadband communications.

Prior to founding Greentech Media, Scott was chief analyst at Heavy Reading, the market research arm of Light Reading, the dominant online media company in the telecommunications market. CMP bought Light Reading in 2005. Before creating Heavy Reading, Scott founded PointEast Research, providing strategic consulting and market intelligence to a broad mix of startups, venture capitalists and major suppliers in the communications/IT industry, and worked as director of research for Light Reading. In 1997, Scott co-founded Pioneer Consulting, which quickly grew into the leading market research firm covering the optical and broadband communications industry.

Stephen Lacey


Stephen Lacey is Editor-in-Chief of Greentech Media. He manages a team of writers focused on solar, storage, efficiency, mobility, and grid modernization. He’s also host of the Energy Gang podcast, a weekly roundtable on the latest energy and environmental news.

Ben Kellison

Director, Grid Research

Ben is the Director of Grid Research for GTM Research, specializing in Distribution Automation, Network Management and Renewables Integration markets. He previously worked as a research analyst for Knwldg Houston, formerly a green energy and healthcare consulting firm, where his research focused on AMI deployment and smart grid regulatory policy. Prior to Knwldg Houston, Ben was a policy intern with Wexler and Walker Public Policy Associates where he performed research for energy, transportation, and defense clients.

He has authored multiple studies on the smart grid market, concentrating on policy evolution, technology innovation, the market's competitive landscape and project economics. Ben has delivered keynote presentations for multiple industry conferences, moderated and participated in panels covering a variety of topics, and regularly hosts industry webinars with GTM Research / Greentech Media. Ben has been a smart grid contributor on CNN Money, NPR, and the Texas Tribune. He graduated from Washington University in St. Louis with a bachelor’s degree in economics and political science.

Ravi Manghani

Director, Energy Storage

Ravi is the Director of Energy Storage at GTM Research, where he focuses on U.S. energy storage markets and value chain analysis. As an industry expert, Ravi has been quoted in various publications including New York Times, Wall Street Journal, Washington Post, Forbes, Bloomberg, Christian Science Monitor, Wired, and Verge.

Ravi has over 8 years of experience in energy storage as a consultant, analyst and engineer. Ravi holds a Master of International Business degree from the Fletcher School at Tufts University, a Master of Science in Chemical Engineering degree from University of Washington, Seattle and a Bachelor of Chemical Engineering degree from Institute of Chemical Technology, Mumbai, India.

Justin Freedman

Director, Research Sales

Justin has served as the Director of Research Sales since 2011, and brings 12 years of sales leadership to the GTM team.  Prior to joining GTM, he worked at Forrester Research and thus has a deep understanding of how to engage market research and data to help clients achieve a broad range of strategic initiatives. At GTM, Justin leads a team focused on ensuring the ongoing success of its customers while continuing to grow the overall business. Outside of work, Justin is an avid boater, fisherman, and enjoys the spending time outdoors with his wife and dog.

Tate Ishimuro

Director, Grid Research Sales

Tate Ishimuro is the director of Grid research sales, including Grid Edge Executive Council membership and energy storage products, at GTM Research. Tate joined GTM in 2009 as a member of the solar research sales team and was instrumental in building relationships with the solar industry and establishing that as an anchor business line for GTM.

In 2013, Tate was appointed to lead the sales effort for GTM’s grid research practice. Since then he has helped conceive of and grow the Grid Edge Executive Council to over 90 member organizations and 190 industry executives that are leading the way in defining the next-generation electricity system. He has attracted some of the largest energy utilities and technology companies in the world, including Duke Energy, Exelon, GE, PG&E, National Grid, EDF and many more. Prior to joining GTM, Tate attended Barry University and worked for a real estate development company in the San Francisco Bay Area.

Cory Honeyman

Associate Director, U.S. Solar

Cory Honeyman is the Associate Director of U.S. Solar at GTM Research and manages GTM’s U.S. solar market analyst team. He is responsible for strategy and development of GTM Research’s coverage of the downstream U.S. solar market, including all reports, products, and custom engagements on trends in policy, market design and project development.

Jacqueline Chase, CMP

Director of Global Events

Jacqueline is the Director of Global Events. She is a marketing and event operations professional responsible for the planning and execution of GTM’s industry-leading conferences as well as the company’s event services business.

She has nearly a decade of experience in the field, having come to GTM in 2011 from Noering Productions where she held positions in corporate event planning and administration. Jacqueline attended the University of Notre Dame, graduating with a B.S. in Environmental Science. She is based in GTM’s Boston headquarters, located just north of her hometown of Cohasset, Massachusetts.

Kristine LaRocca

Creative Director

Kristine LaRocca-Niedzwiecki is our Creative Director at Greentech Media. Kristine has been with the company since 2009 and previously was the Lead Graphic Designer and Office Manager. 

Kristine has a vast knowledge and expertise in color, typography, layout and user experience. In past projects, her talents encompassed a broad range of branding strategy, identities, package design, web design and user interface.  Before Greentech Media, Kristine attended Pratt Institute where she studied Graphic Design and graduated with a BFA in Communication Design. During Kristine's personal time she enjoys traveling, keeping up with architectural trends, visiting museums and spending time with her husband.