This paper describes how to support continued rapid investment in new clean energy resources even as the output from variable energy resources gets more out of sync with customer demand profiles. It lays out principles for an “electricity markets cascade” that efficiently recruits capital for electric sector investment to deliver on investor expectations of risk and return while meeting customer and policymaker expectations for a least-cost, clean, and reliable grid. It proposes a new “Organized Long-Term Market,” which empowers organized markets to recruit and optimize clean energy resource portfolios and combine them into easily traded long-term energy delivery contracts.