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Day-ahead, 15 mins ahead, and real-time costs of the California ISO displayed in an interactive map.
For official data, visit OASIS. For official emissions data, visit CARB. Monitor real-time grid conditions. View current and historical data for demand, net-demand, supply, renewables, CO2 emissions and wholesale energy prices.
List of U.S. states by standard octane ratings. Most states do not mandate certain standard gasoline grade octane ratings. In the United States and Canada, octane ratings are in AKI, commonly shown as " (R+M)/2".
Regional gasoline and diesel prices. We show Octane-95 gasoline price data for California from 25-Mar-2024 to 24-Jun-2024. The average gasoline price during that period is 1.31 per liter with a minimum of 1.21 on 24-Jun-2024 and a maximum of 1.39 on 15-Apr-2024.
3 days ago · For official data, visit OASIS. For official emissions data, visit CARB. Monitor real-time grid conditions. View current and historical data for demand, net-demand, supply, renewables, CO2 emissions and wholesale energy prices.
- Introduction
- Executive Summary
- Phase 1: Analysis of Gasoline Octane Costs
- Phase 2: Future Gasoline Octane Scenarios
In 2017, the U.S. average retail premium gasoline price was $0.50 per gallon (gal) more than the price of regular gasoline. The difference between premium gasoline and regular gasoline prices began to increase in approximately 2010. The cause of this price spread may be the result of a change in U.S. refinery operations or retail gasoline pricing d...
In the United States, since approximately 2010, the price difference between regular gasoline with an octane rating, or Anti–Knock Index (AKI), of 87, and premium gasoline with an AKI of 91 has been increasing. Between 2010 and 2017, the U.S. average retail price difference between premium gasoline and regular gasoline doubled, from approximately $...
This section examines the possible causes for the increasing premium–to–regular price spread related to the production of motor gasoline and its components at refineries in the United States. To that end, EIA retained Baker & O’Brien to analyze the factors and conditions at refineries that could result in the increasing spread. Baker & O’Brien’s an...
In Phase 2, Baker & O’Brien analyzed whether or not the U.S. domestic refining industry would be capable of meeting higher octane demand if the octane requirements for retail gasoline increased. The scenario assumes that, beginning with model year 2023, all light–duty vehicles in the United States will require a minimum 95 research octane number (R...
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Jun 10, 2024 · California’s preference for 91 octane over 93 may be influenced by balancing the cost to consumers against the performance benefits. While higher-octane fuels can improve fuel economy and engine efficiency, these advantages must be weighed against the potential for higher prices at the pump.
