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In-brief analysis

May 28, 2025

The California Independent System Operator (CAISO), the grid operator for most of the state, is increasingly curtailing solar- and wind-powered electricity generation as it balances supply and demand amidst rapid renewables capacity growth.

Grid operators must balance supply and demand to maintain a stable electric system. The output of wind and solar generators is reduced either through price signals or, rarely, through an order to reduce output during periods of:

Congestion, when power lines don’t have enough capacity to deliver available energy Oversupply, when generation exceeds customer electricity demand

In 2024, CAISO curtailed 3.4 million megawatthours (MWh) of utility-scale wind and solar output, a 29% increase from the amount of electricity curtailed in 2023.

Solar accounted for 93% of all the energy curtailed in CAISO in 2024. CAISO curtailed the

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In-brief analysis

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In-brief analysis

May 27, 2025

Data source: U.S. Energy Information Administration, Hourly Electric Grid Monitor

At EIA, we publish U.S. electricity net generation from two different perspectives:

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In-brief analysis

May 22, 2025

Data source: U.S. Energy Information Administration, Gasoline and Diesel Fuel Update, and the U.S. Bureau of Labor Statistics
Note: Real prices are adjusted to May 2025 dollars.

The retail price for regular-grade gasoline in the United States on May 19, the Monday before Memorial Day weekend, averaged $3.17 per gallon (gal), 11% (or 41 cents/gal) lower than the price a year ago. After adjusting for inflation (real terms), average U.S. retail gasoline prices going into

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RSS feed source: US Energy Information Administration

In-brief analysis

May 27, 2025

Data source: U.S. Energy Information Administration, Hourly Electric Grid Monitor

At EIA, we publish U.S. electricity net generation from two different perspectives:

The two sets of reports reflect different generating units, so adding up net generation from the Hourly Electric Grid Monitor from each hour of a month or year will not match the net generation published in our Electric Power Monthly or Electric Power Annual.

Why doesn’t hourly generation data match monthly or annual generation data in EIA reports?
EIA’s Hourly Electric Grid Monitor only captures generating units that are managed by a balancing authority and generating units with operations visible to a balancing authority. A balancing authority is an entity that is responsible for balancing electricity supply and demand at a regional or local level. Balancing authorities include

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In-brief analysis

May 22, 2025

Data source: U.S. Energy Information Administration, Gasoline and Diesel Fuel Update, and the U.S. Bureau of Labor Statistics
Note: Real prices are adjusted to May 2025 dollars.

The retail price for regular-grade gasoline in the United States on May 19, the Monday before Memorial Day weekend, averaged $3.17 per gallon (gal), 11% (or 41 cents/gal) lower than the price a year ago. After adjusting for inflation (real terms), average U.S. retail gasoline prices going into Memorial Day weekend are 14% lower than last year, largely because crude oil prices have fallen.

Memorial Day weekend is one of the biggest travel weekends of the year, and many of those travelers will go by car. The American Automobile Association (AAA) expects 39.4 million people will travel by car over Memorial Day weekend this

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