Future electricity systems with tight constraints on carbon emissions will rely much more on wind and solar generation, with zero marginal cost, than today. We use capacity expansion modelling of Texas in 2050 to illustrate wholesale price distributions in future energy-only, carbon-constrained...

Currently, most U.S. electricity consumers pay a constant price per kWh consumed that accounts for most of their bill. Ongoing developments in the power system increase efficiency gains that can be made from exposing consumers to widely varying wholesale spot prices. Pure spot pricing is not...

TVA and the other federal electric utilities were created under Democratic administrations, and their service territories were initially bluer than average. These subsidized enterprises sell cheap power preferentially to non-investor-owned distributors, so such distributors are more prominent...