A Survey of State-Level Cost and Benefit Estimates of Renewable Portfolio Standards

This report summarizes the cost and benefit estimates for existing state-level Renewable Portfolio Standards (RPS). Key findings reveal that average estimated incremental costs for RPS compliance were equivalent to approximately 0.9-1.2 percent of average retail electricity bills, or -$4-$48/MWh when expressed in terms of cost per unit of required renewable energy. The health and economic benefits of RPSes translated to $4-$23/MWh and $22-$30/MWh of renewable generation, respectively, though only a handful of benefits studies have been conducted.