States have passed more than 230 bills related to clean and renewable energy to date in 2017, according to the National Conference of State Legislatures (NCSL). Broadly, the legislation can be divided between policies directly supporting energy innovation — through R&D expenditures or targeted economic development initiatives — and policies implementing structural changes —through the regulatory environment, incentives for production facilities, renewable portfolio standards and other requirements. This breadth of activity clearly demonstrates that clean and renewable energy is of high interest throughout the country, but will be challenging to innovators and entrepreneurs planning development over time or across states.