Investigating a Higher Renewables Portfolio Standard in California

This report discusses E3′s modeling study to analyze scenarios for a 50 percent Renewable Portfolio Standard (RPS) in California by 2030. It intends to address utilities’ questions regarding the challenges, potential solutions, and economic and environmental impacts associated with a higher RPS in future years. E3 used its Renewable Energy Flexibility Model to analyze four scenarios for achieving a 50 percent RPS; a large solar scenario, a small solar scenario, a rooftop solar scenario, and a diverse scenario, comparing them to 33 percent and 40 percent scenarios as reference points for comparison.