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Maguire: Texas solar power output surpasses coal in Texas

The largest electricity network in the U.S. will be able to produce more energy from solar farms in 2025 than it does from coal plants for the first time.

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

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 rapid growth of solar energy in Texas, the main fossil fuel hub of the U.S., will act as a model for other states that are trying to increase output from all sources available to keep up with the rising demand for power.

BANNER?YEAR

LSEG data show that the solar power production in Texas has risen by 42% this year compared to a year ago, thanks to a 24% increase in installed solar capacity this year.

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 last year, then this year's output would be around 185,000 MWh. This would bring the total solar production to 2.82 millions MWh.

COAL GROWTH

LSEG data show that Texas'?solar generation outperformed coal in 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 about 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 difference.

This means that coal-fired production in Texas, the nation's largest coal power producer, can be expected to rise?further in 2026. The state will also have a successful finish in coal production.

CLEAR CLEAN MOMENTUM

2025, despite a recent increase in coal-fired power generation at the same time that solar production is falling to "annual lows", 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 at the peak of the day, during the daytime, to be stored and discharged during peak demand periods.

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 park will continue to expand in the years to come.

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

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(source: Reuters)