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We have developed a state-scale version of the MARKAL energy optimization model, commonly used to model energy policy at the US national scale and internationally. We apply the model to address state-scale impacts of a renewable electricity standard (RES) and a carbon tax in one southeastern state, Georgia. Biomass is the lowest cost option for large-scale renewable generation in Georgia; we find that electricity can be generated from biomass co-firing at existing coal plants for a marginal cost above baseline of 0.2-2.2 cents/kWh and from dedicated biomass facilities for 3.0-5.5 cents/kWh above baseline. We evaluate the cost and amount of renewable electricity that would be produced in-state and the amount of out-of-state...
Bedded trona (Na2CO=-NaHCO=.214,0) in the lacustrine Green River Formation of Eocene age in the Green River Basin, southwest Wyomin~ constitutes the largest known resource of natural sodium carbonate in the world, in this study, 116 gigatons (Gt) of trona ore are estimated to be present in 22 beds, ranging from 1.2 to 11 meters (m) in thickness. Of this total, 69 Gt of trona ore are estimated to be in beds containing less than 2 percent halite and 47 Gt in beds containing 2 or more percent halite. These 22 beds underlie areas of about 130 to more than 2,000 km: at depths ranging from about 200 m to more than 900 m below the surface. The total resource of trona ore in the basin for which drilling Information is available...
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This data release is a compilation of published and unpublished thermal maturity and source rock geochemical data (Rock-Eval, pyrolysis) from subsurface wells in the Permian Basin, west Texas and southeast New Mexico. These data include 67 newly collected samples and analyses from Delaware Basin wells (identified as Cicero_2022), as well as 1028 previously unpublished USGS analyses from the entire province (identified as LIMS). Data were also synthesized from publicly available sources, such as theses and dissertations, state agencies and databases, as well as from the body of published literature.
    map background search result map search result map Compilation of thermal maturity and source rock geochemistry data from the Permian Basin Province, west Texas and southeast New Mexico Compilation of thermal maturity and source rock geochemistry data from the Permian Basin Province, west Texas and southeast New Mexico