The assignment content discusses the efforts of Regional Water Authority (RWA) in improving nutrient reduction at urban wastewater treatment plants using renewable energy technology. The RWA's main efforts include internal query, gray and white literature review, reviewing existing guidance documents, and performing an interrogation of selected industry practitioners. Despite these efforts, relatively few case studies met the criteria. Relevant data on approach, performance, and costs are summarized for the developed case studies, which were used to develop technical information to help water treatment plant managers improve nutrient reduction performance.