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Maguire: Texas solar power output surpasses coal in Texas

In 2025, Texas' largest power grid will generate more energy from solar farms during a calendar-year than it does from coal plants. This marks a new milestone in energy transition for the U.S.

According to LSEG data, the Electric Reliability Council of Texas generated 2.64 megawatt hours of energy from solar assets, compared to 2.44 million MWh of electricity from coal plants during the period January-November.

Solar farms are expected to generate 150,000 MWh or more in December, even if solar generation drops in the last weeks of 2025 because of reduced daylight.

In 2025, the U.S. climate watchers will be able to highlight the Texas solar output as compared with coal production. The coal output in the United States has risen sharply this year, and is still three times higher than solar energy.

The steep rise in solar power in Texas, the U.S.'s main fossil fuel hub, will likely serve as a model for other states that are trying to increase output from every source possible to meet the rising demand.

YEAR BANNER

According to LSEG data, the increased installed solar capacity of?Texas in this year - 24% higher than in 2024 - has enabled solar power production in Texas to increase by 42% this year compared to a year ago.

ERCOT's solar production is averaging a 44% increase from 2024, and has been setting new records each month in 2025.

If the solar output for December is also up by 44% from a year ago, then this year's output total will be around 185,000 MWh. This would bring the solar generation for all of 2012 to 2,82 million MWh.

COAL GROWTH

LSEG data show that Texas solar generation has outperformed coal in the state even though ERCOT coal-fired plants have posted a 10% increase from the same month of 2024.

In Texas and throughout the United States, utilities have tried to increase output this year from all sources to meet a higher energy demand. This is due to an increased use of artificial intelligence and a greater use of electricity.

The steep rise in the price of natural gas has also led to widespread gas-fired plant closures in Texas and other states.

According to LSEG, ERCOT's gas-fired electricity supplies are down by 4% compared to a year ago. They have reached 7.74 million MWh this year.

Gas prices in the U.S. are currently around 50% higher than the average for 2024. Additional cuts to the gas-fired production can be expected where coal-fired power plants are available to cover the output gap.

This means that coal-fired production in Texas, the top coal producer in the United States, is also expected to rise further in?2026. The state will finish strong in coal production.

CLEAR CLEAN MOMENTUM

Even though coal-fired power is on the rise, solar production has fallen to its lowest level in years, 2025 will be a crucial year for solar energy in Texas.

Solar farms accounted from January to November for a record share of ERCOT's generation mix. This compares with a share of 13% for coal plants in the state.

The solar share in Texas this year is compared to a mere 6% in the same months of 2022. This shows the rapid and massive rollout of solar assets in Texas over the past few years.

Texas utilities are also the most aggressive in the nation when it comes to deploying utility-scale batteries storage systems. These allow surplus solar energy that is generated throughout the day to be stored and then released during times of peak demand.

The combination of battery and solar power remains the fastest and most popular way for utilities to increase their energy supplies. This means that Texas solar parks will continue to expand in the years to come.

These are the opinions of a columnist who writes for.

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(source: Reuters)