GUIDANCE FOR DEVELOPMENT OF TECHNO-ECONOMIC ANALYSES FOR DOE/NETL’S FEASIBILITY OF RECOVERING RARE EARTH ELEMENTS PROGRAM Based on the following Appendices A, B, and C, the project participant should develop a detailed Techno-Economic Analysis (TEA) that estimates the cost and performance for scale-up of the project partner’s proposed technology to a commercial demonstration of recovering rare earths from coal and coal by-products. The intent of the TEA is to demonstrate economic feasibility and identify economic and design hurdles that can be addressed with future research development and demonstration. The TEA should include a description of how the proposed process would fit within the overall REE supply chain and what additional processes or processing steps would need to be developed to produce individual high-purity rare earth elements (REEs) and/or rare earth oxides (REOs). The TEA should include a paper study to determine the technical, economic, and environmental aspects of resources required for commercial-scale operation. As applicable, the TEA should evaluate: 1. Available quantity and quality of feedstock to support long-term commercial operation. 2. Commercial availability of the required process equipment. The TEA should be based on vendor quotes where available but, if relevant quotes are not available, the TEA may be based on appropriate scaling factors. 3. Commercial availability of reagents (i.e., lixiviants, acids/bases, solvents, etc.), and/or alternate reagents/additives. The TEA should consider the following factors for reagents and/or alternate reagents/additives required for commercial-scale operation: a. Current and proposed sources of reagents with geographic location of domestic and global reagent manufacturing facilities (if available, include the current and future production capacity of those facilities). b. Market availability, relative purity, and price for quantities of reagent required to initially fill and periodically supplement the initial system fill (system make-up/re-charging), and the risk of supply becoming unavailable. If supply and /or price of commercial reagents are constraints, the TEA should consider the technical and economic feasibility (including capital and operating costs) of producing reagents on-site at the rare earth recovery system commercial-scale site. c. Technical factors such as reagent purity requirements, reagent performance, reagent degradation, and the technoeconomic impact of those factors.