“On February 25, 2015, Advanced Energy Economy Institute hosted a meeting of senior executives from advanced energy companies and California’s investor-owned utilities (IOUs). The California 21st Century Electricity System CEO Forum was an opportunity for energy industry leaders to discuss the drivers of industry change and to start to examine utility business models and regulatory concepts that can adapt to and thrive in the emerging energy market environment. Out of that meeting came a desire by the participants to advance the ideas and concepts discussed. Toward a 21st Century Electricity System for California summarizes that effort. Produced by a working group that included representatives of IOUs, California Independent System Operator, and more than a dozen advanced energy companies active in California, this position paper presents a broad vision of how stakeholders in California can work together in a more integrated fashion to achieve the state’s ambitious and important energy and environmental policy objectives.”