Transparent conductors are a critical component in many technologies affecting society, including solar cells, touch screens, flat panel displays, light emitting diodes and lasers. Finding materials that combine high electrical conductivity with excellent optical transparency in the visible spectrum has proved challenging: metals typically are good conductors but reflect rather than transmit visible light, while insulators like glass are highly transparent but do not carry an electrical current. The goal of this project is to pursue an unconventional paradigm, developed in previous work by members of the project team, to discover and develop new transparent conducting materials based on earth-abundant elements that exhibit substantially better performance and can be made with lower cost than the long-standing industry-standard indium-tin-oxide (ITO). Theoretical analysis combining mining of databases of materials property measurements and computations with predictive simulations of the structure and properties of candidate materials will be closely integrated with efforts in the laboratory to synthesize, characterize and optimize real materials. In the context of the Materials Genome Initiative coordinating efforts across the nation to accelerate the discovery, development and deployment of advanced materials, tools and techniques for integration of theory and experiment in materials design that are developed in the course of the project will be made available to the community to advance progress in broader materials design challenges. Breakthroughs in the development of transparent conductors will advance green technologies for energy generation, lighting, and passive building designs.