The Treatment of Renewable Energy Certificates, EmissionsAllowances, and Green Power Programs in State Renewables PortfolioStandards

摘要: Twenty-one states and the District of Columbia have adopted mandatory renewables portfolio standards (RPS) over last ten years. Renewable energy attributes-such as source, conversion technology, plant location vintage, emissions-are usually required to verify compliance with these policies, sometimes through attributes bundled electricity, unbundled from electricity traded separately renewable certificates (RECs). This report summarizes treatment in state RPS rules. Its purpose is provide a source information for considering also draw attention certain policy issues that arise when RECs are used compliance. Three specific addressed: (1) degree which allowed under existing programs status systems track attributes; (2) definitions must be included order meet obligations, including available emissions allowances; (3) policies on whether or sold voluntary green power transactions may count towards obligations.