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Maguire: Five charts showing how the US clean electricity output continues to climb.

The U.S. energy system continues to set new milestones in clean power nine months after President Donald Trump's administration gutted many clean energy policies and pushed more fossil fuels.

U.S. utilities are on track to increase clean electricity supply by more than four times in the next four years. They have also increased total electricity production and given clean-power sources an unprecedented share of utility-supplied power generation.

U.S. utilities have also reduced fossil fuel-fired generation to the greatest extent since 2023. This has resulted in?the?lowest emissions from coal-fired plants since 2018.

Here are five charts that show how the U.S. power mix is getting cleaner, despite federal funding for renewables being cut and fossil fuels receiving more support.

CLEAN CUT

Data from the energy think-tank Ember show that in March 2026, clean-power sources will generate more electricity than fossil fuel power plants for the first time.

In March, 182.6 terawatt-hours (TWh), a record amount of electricity, was produced from clean power sources. This compares to 166 TWh from fossil fuel power plants.

The clean power surge was primarily driven by the record-breaking output of wind and solar farms in March. This accounted for 52% of the total electricity produced last month.

The total clean electricity supply for the quarter of January to March surpassed 500 TWh for the first. It weighed in at 512.3 compared with 582 TWh coming from fossil fuel sources.

Comparing the quarter of 2025 to that of January-March 2019, clean-power production was up by 6.5%, while fossil fuel output fell 5%. In January-March, clean-power sources represented a record share of the total utility supply. This is up from 44%.

HIGH AND RISING

As the summer approaches, the share of clean power in the utility mix is expected to increase as the combined output of solar and wind farms reaches its annual peak at the same time as the use of fossil fuel power plants reaches an annual low.

Solar farms have already contributed to a record 11 percent of the total electricity produced by utilities in March. However, they tend to reach a peak in their output each year in July when the solar radiation is at its highest.

The readings of monthly solar shares could thus reach new heights this summer, as solar assets continue to grow in size and capture a larger portion of the energy mix.

Battery systems for utility-scale applications, which are often charged during peak solar production and discharged when the sun sets, will also likely capture a record share of electricity supply this year.

The output from wind farms peaks around March or April. Utility systems should then play a decreasing role until the fall.

The increased wind farm area and upgraded blades on several sites in the country will boost the output of wind farms, even though wind speeds are slower during the summer. Utilities will be closely monitoring this component.

COAL VS NUCLEAR

The U.S. nuclear fleet is becoming more prominent thanks to the high-profile support of policymakers for the sector.

The new nuclear support will take years to increase electricity supply, but the fleet of reactors currently in operation is able to achieve new generational milestones.

In the last eight months, for example, the electricity produced by coal-fired power plants has been surpassed, which is a record. This helps the electricity sector to become cleaner.

Ember data show that coal-fired power output between January and March was 169 TWh. This is down from the 196 TWh produced during the same period in 2025. It compares with the 194 TWh produced by nuclear reactors this year.

The coal-fired emission for the first quarter of 2026 was around 177 millions metric tons of carbon dioxide and other equivalent gases. This compares to an average 219 million tons for the same period in the previous three year.

The coal-fired power plant will continue to reduce until summer when the demand for air conditioners, which are energy-intensive, increases and utilities must increase their output.

The overall clean-power supply is expected to continue growing until then. This will allow utilities to increase total electricity while reducing their reliance on fossil fuel?plants, and keep power pollution levels under control.

Since renewables and?battery system can be deployed more quickly, cheaper and efficiently than new gas-fired power plants, the momentum of clean power in the U.S. electric grid will continue to grow despite Trump's antirenewables stance.

These are the opinions of a columnist who writes for.

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(source: Reuters)