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Crude oil, gasoline, heating oil, diesel, propane, and other liquids including biofuels and natural gas liquids.
Exploration and reserves, storage, imports and exports, production, prices, sales.
Sales, revenue and prices, power plants, fuel use, stocks, generation, trade, demand & emissions.
Energy use in homes, commercial buildings, manufacturing, and transportation.
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EIA is continuing normal publication schedules and data collection until further notice.
A brief introduction of the National Energy Modeling System (NEMS) is available on the Assumptions page. A more detailed overview is provided below in the report: The National Energy Modeling System: An Overview.
NEMS is a modular system. The modules represent each of the fuel supply markets, conversion sectors, and end-use consumption sectors of the energy system. The modular design also allows us to use the methodology and level of detail most appropriate for each energy sector. NEMS executes each of the component modules to solve for the prices of energy delivered to end users and the quantities consumed by product, region, and sector. The information flows also include economic activity, domestic production, and international petroleum supply. NEMS calls each supply, conversion, and end-use demand module in sequence until the modeling system reaches an equilibrium between supply and demand.
Notes: [1] The Liquid Fuels Market Module replaced the Petroleum Market Module starting with Annual Energy Outlook 2013. [2] The Natural Gas Market Module replaced the Natural Gas Transmission and Distribution Module starting with Annual Energy Outlook 2018.