Latest News

Maguire: US fossil fuel electricity production and emissions will peak in 2025.

Climate trackers who follow the trends in U.S. electricity generation and emissions have good and bad news.

Good news: electricity production from fossil-fuels peaked in July, when the annual demand for air conditioners was at its peak. It has now started to decline as cooler temperatures reduce power demand.

The bad news: July's fossil-fuel generation peak was the largest monthly total for the power sector in the United States since August 2021.

The uneven progress in U.S. efforts to transition from coal and gas power plants is highlighted by the mixed bag of milestones for generation and emissions. It also highlights the important role they continue to play within the U.S. electricity generation system.

The jagged monthly generation trends mask the progress that is being made in the U.S., where clean energy has generated a record-breaking share of the total electricity this year.

Here are some more data points that show the relative performance of fossil fuels versus clean energy in the U.S. electricity generation system.

SUMMER TOPS

The peak in fossil-fuel-fired electricity production in the U.S. occurs between July and August, due to higher electricity demand from air conditioners during these months.

In the period between 2015 and 2024 the U.S. fossil fuel production peaked in July eight times while August was the highest monthly point two times.

The number of heatwaves in July 2025 will likely be higher than ever before, due to the average temperatures being slightly lower since then.

Ember data shows that the total fossil-fired electricity generated in July was approximately 290 Terawatt Hours (TWh), which is the highest total since August 2016, when 294 TWh were produced.

Ember data show that the July total generated 191 million tons of CO2 (as well as the peak annual fossil production last year).

This was the highest monthly total of power emissions since July 2021. It appears to have reversed an overall trend that has been declining for years in U.S. electric production.

CONCEALED CLEAN GREEN PROGRESS

The increase in fossil-fired electricity generation and emissions has led to fears among U.S. producers of electricity that they will regress on their clean energy production momentum.

The share of fossil fuels in the U.S. overall electricity mix has fallen to record lows by 2025, despite the fact that fossil electricity supplies reached multi-year highs last July.

In the period between January and July, fossil-fuel electricity accounted for 56% on average of all U.S. utilities' total electricity.

This generation share is a far cry from the nearly 67% fossil share of the January-July period in 2015.

In contrast, clean energy has generated a record share of U.S. electricty so far in 2025. This compares with only a share of 33% during the same month a decade earlier.

As solar power drops, the share of clean energy in U.S. electric generation dips. However, it then shows a strong recovery through the winter when wind speeds increase at wind farm level.

In the same way, fossil fuels are used less in the generation of electricity during milder weather periods, like the spring and fall, which allows utilities to maximize the clean energy sources they have at their disposal.

As a result of President Donald Trump's abrupt decision to scrap clean energy incentives, the speed of growth of clean power is expected to slow.

As existing projects are completed, the footprint of clean energy sources will continue to grow.

This momentum will be sufficient to raise clean power's share in the U.S. mix of electricity generation to new heights by 2025.

These are the opinions of the columnist, an author for.

You like this article? Check it out

Open Interest

The new global financial commentary source (ROI) is your go-to for all the latest news and analysis. ROI provides data-driven, thought-provoking analysis on everything from soybeans to swap rates. The markets are changing faster than ever. ROI can help you keep up. Follow ROI on

You can find us on LinkedIn.

(source: Reuters)