The document discusses Hawaii's efforts to transform its electricity grid to integrate more renewable energy sources like wind and solar in order to meet renewable portfolio standards and reduce greenhouse gas emissions. Planning studies are being conducted to understand the impacts and feasibility of integrating high levels of variable renewable resources. New tools, programs, and processes are being developed and applied to help facilitate this transformation, including the Hawaii Utility Integration Initiative, battery energy storage demonstrations, and studies of inter-island wind transmission via undersea cables. The goal is to achieve a reliable, sustainable and cost-effective renewable energy future for Hawaii.