Venture Capital and Cleantech: The wrong model for energy innovation

Venture capital (VC) firms spent over $25 billion funding clean energy technology (cleantech) start-ups from 2006 to 2011. Less than half of that capital was returned; as a result, funding has dried up in the cleantech sector. But as the International Energy Agency warns, without new energy technologies, the world cannot cost-effectively confront climate change. In this article, we present the most comprehensive account to date of the cleantech VC boom and bust. Our results aggregate hundreds of investments to calculate the risk and return profile of cleantech, and we compare the outcomes with those of medical and software technology investments. Cleantech posed high risks and yielded low returns to VCs. We conclude that among cleantech investments, "deep technology" investments—in companies developing new hardware, materials, chemistries, or manufacturing processes—consumed the most capital and yielded the lowest returns. We propose that broader support from policymakers, corporations, and investors is needed to underpin new innovation pathways for cleantech. - Highlights: • A venture capital boom in clean energy technology went bust in 2008. • Cleantech offered high risk and low returns to investors. • Poor performance due to long development time for materials and chemicals. • Breakthrough energy innovations are often not a match for venture capital. • More research on alternative financing and support for cleantech is needed.