United States, Texas: The Electric Reliability Council of Texas (ERCOT) recorded the fastest electricity demand growth among all US grid operators between 2024 and 2025, according to the Energy Information Administration (EIA).
From January through September 2025, electricity demand in ERCOT rose 5 % from the same period in 2024 to 372 TWh – a 23 % increase compared with 2021. The EIA forecasts demand will continue to grow faster than any other US grid through 2026, climbing another 14 % to reach 425 TWh.
To meet this growth, ERCOT is advancing its Grid Research, Innovation and Transformation (GRIT) initiative, which promotes collaboration in research, prototyping, and technology development. The programme focuses on grid transformation, partnerships in innovation, and an annual summit aimed at accelerating new solutions for power system stability.
Wind and solar are playing a growing role in meeting demand. Utility-scale solar generation reached 45 TWh in the first nine months of 2025 – up 50 % from the same period in 2024 and nearly four times the output in 2021. Wind generation increased 4 % year-on-year to 87 TWh. Combined, wind and solar supplied 36 % of ERCOT’s electricity needs this year.
Natural gas remains the largest single source of electricity, providing 43% of ERCOT’s power in the first nine months of 2025. However, its share has declined from 47% in 2023 as renewables and battery systems expand.
Source: mrt.com
