Emerging over the past five years, novel approaches to supporting early-stage cleantech development have the potential to ease the transition from invention to marketplace, according to new research from the National Renewable Energy Laboratory’s (NREL) Innovation & Entrepreneurship Center for the Joint Institute for Strategic Energy Analysis. The report provides a comparison of some of the nation’s most notable cleantech incubators and accelerators, finding that each organization fills a unique niche and competition among them is not an issue.