Puget Sound Electric IRP 2017
Sierra Club retained Synapse to assess the 2017 Integrated Resource Pan (IRP) filed by Puget Sound Energy (PSE). Synapse's review found that the PSE IRP included a reasonable near-term resource plan but contained proposed actions that could lead to an unjustified deviation from that resource plan. In addition, Synapse identified a series of unjustified assumptions and conclusions regarding renewable resource costs and availability and coal plant retirement dates that resulted in a biased long-term resource plan. In comments submitted to the Washington Utilities and Transportation Commission, Synapse recommended that the Commission ensure full oversight of PSE's upcoming resource procurement processes and require PSE to use updated assumptions and enable full stakeholder participation in future IRP cycles.