RSS feed source: US Energy Information Administration

In-brief analysis

September 29, 2025

Two electricity markets in the Midwest still generate more electricity from coal than from natural gas in at least some months of the year: Southwest Power Pool (SPP) and the Midcontinent Independent System Operator (MISO). We expect these two regions will generate more electricity from coal than from natural gas in some upcoming winter months, based on forecasts in our latest Short-Term Energy Outlook.

As recently as 2021 and 2022, both SPP and MISO were producing more electricity from coal than from natural gas in every month of the year. More recently, coal has exceeded natural gas only in the winter months, when demand for space heating and related demand for electricity increase. In MISO and SPP, we expect coal generation to exceed natural gas generation from December 2025 through February 2026.

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RSS feed source: US Energy Information Administration

In-brief analysis

September 26, 2025

Growth in distributed solar generation capacity has driven growth in total electricity generation capacity in Brazil since 2019. Distributed solar generation capacity grew from less than 1 gigawatt (GW) in 2018 to 40 GW in 2025 through June, accounting for 43% of all electricity capacity additions over that period.

In 2012, Brazil implemented net metering policies, which have recently contributed to large increases in distributed solar generation capacity. Compared with distributed solar, utility-scale solar generating capacity at the end of June was only 17.9 GW, according to the Brazilian Electricity Regulatory Agency (ANEEL). As of June 30, 2025, total solar electric generating capacity in Brazil was 23% of the total electric generating capacity.

Home and building owners installed more than 3.7 million renewable distributed generation systems in Brazil as of June

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RSS feed source: US Energy Information Administration

In-brief analysis

September 24, 2025

Data source: U.S. Energy Information Administration, Short-Term Energy Outlook (STEO), September 2025
Note: Total distillate inventories include distillate fuel oil, renewable diesel, and biodiesel inventories.

In our September Short-Term Energy Outlook, we forecast U.S. total distillate inventories to end 2025 and 2026 at lower levels than previous years because of significant inventory draws in 2025, strong export demand, and domestic production declines stemming from refinery closures. In the weeks since the publication of this forecast, U.S. distillate inventories have increased substantially, but they remain relatively low. Distillate fuel oil includes both diesel fuel used in vehicles and home heating oil. Lower distillate inventories elevate the risk of higher prices and price volatility from supply disruptions, especially during periods of high demand like the autumn harvest and winter heating season.

We use

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RSS feed source: US Energy Information Administration

In-brief analysis

September 22, 2025

In our annual survey of power plant activity, we ask operators of utility-scale batteries how they are using their systems, and one use case is increasingly prevalent: price arbitrage. Arbitrage involves buying electricity when prices are relatively low and selling that electricity when prices are high.

Utility-scale battery systems can be used for many applications. In previous years, we asked operators to identify the ways they used their batteries. Common use cases included price arbitrage as well as frequency regulation, excess wind and solar generation, system peak shaving, load management, and more.

Beginning with the 2023 survey, we asked operators to identify the primary use case for their battery system. Last year, operators responded that 66% of all utility-scale battery capacity had arbitrage among its uses and that 41% of the

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