This dataset contains time-series of total load profiles across Balancing Authorities (BAs) in the western United States (U.S.) electricity grid interconnection for the years 2025, 2030, 2035, 2040, 2045, and 2050. The data is provided for two different socioeconomic pathways and one climate scenario. The socioeconomic pathways -- Business-As-Usual (BAU_Climate) and Net-Zero without CCS (NetZeroNoCCS_Climate) -- are described by https://doi.org/10.5281/zenodo.7838871. The climate scenario -- Representative Concentration Pathway 8.5 hotter (rcp85hotter) -- is described by https://doi.org/10.57931/1885756. Transportation loads in this dataset are derived from https://doi.org/10.5281/zenodo.8065137. Non-transportation loads are derived using the Total Electricity Loads (TELL) model which is available here. The data was post-processed using a Jupyter notebook available here. A brief summary of the files and directories in this data package is provided below. Each file in the "total_loads" subdirectory is a comma-separated-value (CSV) format with the following columns: BA - Acronym of the balancing authority (BA) for this data point Time_UTC - Timestamp of the hourly data in UTC format Non-Transportation_Load_MWh - Total hourly load in the BA from non-transportation sources in megawatt hours Transportation_Load_MWh - Total hourly load in the BA from transportation sources in megawatt hours Total_Load_MWh - Sum of the load from non-transportation and transportation sources in megawatt hours Data in the "gridview_ready_total_loads" subdirectory contains the hourly total loads by BA in a format that is ready for ingestion into the GridView production cost model. This research was supported by the Grid Operations, Decarbonization, Environmental and Energy Equity Platform (GODEEEP) Investment, under the Laboratory Directed Research and Development (LDRD) Program at Pacific Northwest National Laboratory (PNNL). PNNL is a multi-program national laboratory operated for the U.S. Department of Energy (DOE) by Battelle Memorial Institute under Contract No. DE-AC05-76RL01830.