Solar power and utility-scale batteries played a pivotal role in helping Texas maintain grid stability amid the extreme heat and record high energy consumption during the summer of 2024. However, a new study by the Federal Reserve Bank of Dallas warns that these resources may not be able to handle future energy demands and potential winter challenges.
Last summer, solar energy provided nearly 25% of Texas’ mid-day power needs between June and August. Battery storage systems supplemented this by discharging energy during evening hours. This compensated for declining solar output when the sun went down.
Download the SAN app today to stay up-to-date with Unbiased. Straight Facts™.
Point phone camera here
In late August, both solar and battery storage set new records during a peak load event. This performance marked a significant improvement from 2023, as in the summer of 2024, Texas avoided issuing energy conservation appeals to consumers like it had been forced to do multiple times the prior year, demonstrating greater resilience during warmer months.
Winter poses unique challenges
Despite this progress, experts caution that winter poses unique challenges. Peak demand often occurs in the early morning, when solar generation is unavailable and current battery storage capacities may be insufficient for extended demands during extreme cold.
The Electric Reliability Council of Texas also projects substantial growth in energy demand due to the expansion of data centers, industrial operations and electrification trends.
By 2030, peak summer load could rise to 148,000 megawatts, significantly higher than the 85,000-megawatt peak recorded in 2024.
Price reductions may deter investment
While solar and battery storage has lowered wholesale electricity prices — benefiting consumers — these price reductions may deter further investment in additional battery storage and dispatchable power generation.
Texas’ energy-only market design, which compensates generators solely for electricity produced, may require adjustments to incentivize new capacity and ensure future reliability.
Additionally, the state’s standalone grid has been criticized for past resilience issues. The federal government has allocated $360 million to create a new connection between Texas and the national grid, although experts estimate this project could take a decade to complete.
