Sizing Up the U.S. Commercial Solar Market

by Michelle Davis

The commercial solar market varies widely in terms of both project sizes and customer offtaker types. But in the last six years, the market has been trending toward large projects (>1,000 kW) with more public customer offtakers.

This report covers projects that GTM Research classifies as “non-residential.” Rather than using a capacity cutoff to differentiate between non-residential and utility systems, GTM Research defines a system according to its contracted power offtaker. The data reflected in this brief comes from dozens of project-level datasets from utilities and state solar incentive programs in the U.S.

This report is part of GTM Research's U.S. Downstream Distributed Solar Service. To learn more, please contact


Michelle Davis Senior Analyst, Solar

Michelle Davis is a senior solar analyst at GTM Research with a focus on the downstream US distributed solar market. She tracks the competitive landscape of installers, financiers and technology providers in the residential and commercial market segments. Prior to joining GTM Research, Michelle held various research positions focused on renewable energy, covering topics as varied as the energy water nexus to utility investments in electric vehicle charging stations. She has a BS in Biology from Arizona State University and is currently pursuing an MBA from Antioch University with a focus on sustainability.

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