Specifications include, but are not limited to: 1) Conduct an independent review of the scenarios and portfolios presented in the IRPs filed by APS, TEP, and UNSE, their respective costs and benefits, and develop and present alternative scenarios and portfolios that have not been adequately represented or considered in each load serving entity’s IRP. The independent review will include, but not be limited to, the following: a) A review of the process used by the LSE to develop its portfolio and its effectiveness. b) A review of relevant modeling tools used by the LSE in the development of its portfolios. c) A review of all assumptions used by the LSE in developing its scenarios and portfolios. d) A review of the methodologies undertaken by the LSE in developing each scenario and portfolio. e) A review of the portfolio results presented by each LSE. f) An independent analysis of each portfolio to verify the reasonableness of the LSE’s portfolio results such as costs, benefits, and environmental impacts. g) The identification of any issues or shortcomings related to the development of the LSE’s scenarios and portfolios. h) If applicable, the identification of alternative scenarios and portfolios that the LSE should have considered in its IRP. i) If applicable, the analysis and presentation of results of any alternative scenarios and portfolios that the LSE should have considered in its IRP. j) If applicable, propose recommended improvements or “best practices” the LSE can incorporate when developing future scenarios and portfolios for future IRPs. k) A determination regarding to what degree the LSE considered all relevant resources, risks, and uncertainties in its development of its portfolios. l) A determination regarding to what degree the factors that affect demand, including demand management, have been taken into account by the LSE in its development of its scenarios. m) A determination regarding to what degree supply alternatives, such as selfgeneration, have been taken into account by the LSE in its development of its scenarios. 2) Prepare and submit data requests to Commission Staff for issuance to other parties. 3) Author a report that details the results of the independent review which will include, at minimum, a discussion of the methodology used, analysis performed, results of the analysis, and conclusions of the review. 4) Appear (in person or telephonically), comment, and participate as appropriate at meetings, Commission Open Meetings, and hearings if necessary.