EPRI’s TAGWeb is a powerful internet-based software tool that provides credible power generation and storage technology cost and performance data used to support electric power resource planning and generation development activities. It includes data and information on 19 different power generation and storage technologies and financial analysis tools. TAGWeb is available to members of EPRI Program 178, Project Set 178A, or participants in the TAGWeb supplemental project. EPRI developed the TAGWeb data in collaboration with industry professionals currently engaged in the engineering, design, and construction of power generation and storage technologies.