The document discusses two types of growth for cleantech innovation: linear free-market driven growth and non-linear policy-driven growth. It argues that policy measures like carbon pricing, regulations, and incentives are needed to spur the type of large-scale industrial production required to drive cleantech innovation through its manufacturing and commercialization cycles. Specific policies highlighted that could help include developing a better venture capital environment, getting ahead of larger carbon policy debates, using green bonds to attract more investment, and creating technology-neutral incentives beyond just feed-in-tariffs.