This project supports an overall development strategy toward an integrated, interoperable model system utilizing components developed by PNNL, MIT and the PCHES group to explore regional multi-sectoral dynamics of energy, land and water systems in the US. The project seeks to advance the modeling capabilities, tools and approaches of the research groups in preparation for jointly examining multi-sector, multi-resource responses to multiple forcers. The MIT work is focused on: advancing the economic, household, and renewable energy specification in MIT’s detailed economic-electricity model; and exploring approaches for scenario discovery based on probabilistic socio-economic ensembles.