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Maguire: Texas cuts gas consumption as ERCOT clean energy momentum continues to grow

As clean energy sources continue to supplant fossil fuels in the U.S.'s top oil and gas hub, the share of natural gases within the state of Texas's power generation mix has dropped to multi-year lows this year.

Data from ERCOT's power system and the U.S. Energy Information Administration show that natural gas-fired power plants have generated less than 35 percent of the total electricity supplied by the?utility in 2026.

This gas share is up from over 40% two years ago and shows the rapid growth of clean energy in the biggest power producing state in the nation.

RENEWABLES RISE

The main driver for the growth of ERCOT's clean energy has been an 11% increase in the combined output of Texas's wind and solar farms from January 1 to May 19, compared with the same period in the year 2025.

The total?clean energy generation this year up to May 19 has been 93.3 megawatt hours (MWh), an increase of 8% compared to the same period in 2025.

ERCOT data, compiled by EIA, shows that solar?power production has increased 27% to 27 million MWh. Wind output is up 5% at nearly 51 millionMWh.

The growth in renewables has helped to offset the year-to date declines in nuclear and hydropower output. These accounted for approximately 8.8% and 0.1% respectively of ERCOT’s total mix this year.

The record clean power generation also helped boost total power supply by 2% compared to a year earlier, to all-time heights of 174,000,000 MWh. This ensures that Texas' overall power supply continues to grow in tandem with the state's total needs for energy.

FOSSIL MILESTONE

Clean power through ERCOT's power system allows producers to reduce their production of gas and coal-fired plants until 2026.

Total gas-fired production dropped 3% since the same period of 2025, to its lowest level since 2023. Coal-fired production dropped by 8% and reached 21 million MWh, the lowest level since 2024.

Clean power has now surpassed fossil fuels in ERCOT's power mix for the very first time.

Clean power generated nearly 54% share of the total generation from January 1 to May 19. Fossil fuels had a share of just 46%.

The rapid shift towards cleaner power generation in Texas over the past decade is a testament to the pace of energy transition.

The production of gas-fired electricity is expected to increase steadily in the summer, to meet increased demand for air conditioners when ERCOT’s total consumption of electricity reaches its annual peak.

The rapid deployment of battery storage to store excess solar power and discharge it later is also expected to extend solar's contribution into the evening.

This suggests that ERCOT is likely to continue to achieve additional clean energy milestones by 2026, keeping Texas at the forefront of the power system energy transformation efforts in the nation.

These are the opinions of a columnist, who is also referred to as 'the author.

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(source: Reuters)