middle of the pack

Report: Texas has promising capacity for clean electricity, but still falls behind nationally

In Texas only 38 percent of the state’s electricity capacity comes from clean electricity. Photo via Getty Images

In a new report that looked at states with the cleanest electricity across the country, Texas seems to have some room for improvement.

According to the report from SmartAsset, Texas has the most clean energy capacity at 56,405 megawatts, but continues to trail states with similar geographic characteristics in overall clean energy prevalence.

Texas has the largest wind capacity to help generate clean energy with over three times more than Iowa, which is the second-biggest wind power producer. Clean electricity made up 57 percent of Iowa’s total energy capacity (22,546.4 megawatts).

However, in Texas only 38 percent of the state’s electricity capacity comes from clean electricity. Texas also has the second-largest solar capacity, which means Texas has the most means, space, and potential to accommodate cleaner electricity.

Texas as a whole, ranked No. 22 on the list for states with the most clean energy. Washington was No.1 and California, comparable in geographic size to Texas, came in at No. 11. California had 44.3 percent of its energy capacity being from clean energy.

SmartAsset compiled its study by comparing the amount of geothermal, solar, wind and nuclear operations as a percentage of a state’s full electricity production capacity. States were ranked based on the percentage of clean energy sources used to generate the total net summer electricity production capacity. According to the report, the 2022 data comes from the U.S. Energy Information Administration.

Last year, home service management platform Thumbtack ranked cities based upon solar panel installations. Texas fared better here, and the Lone Star State split up four Californian cities in the top five of that report.

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A View From HETI

Houston researchers have uncovered why solid-state batteries break down and what could be done to slow the process. Photo via Getty Images.

A team of researchers from the University of Houston, Rice University and Brown University has uncovered new findings that could extend battery life and potentially change the electric vehicle landscape.

The team, led by Yan Yao, the Hugh Roy and Lillie Cranz Cullen Distinguished Professor of Electrical and Computer Engineering at UH, recently published its findings in the journal Nature Communications.

The work deployed a powerful, high-resolution imaging technique known as operando scanning electron microscopy to better understand why solid-state batteries break down and what could be done to slow the process.

“This research solves a long-standing mystery about why solid-state batteries sometimes fail,” Yao, corresponding author of the study, said in a news release. “This discovery allows solid-state batteries to operate under lower pressure, which can reduce the need for bulky external casing and improve overall safety.”

A solid-state battery replaces liquid electrolytes found in conventional lithium-ion cells with a solid separator, according to Car and Driver. They also boast faster recharging capabilities, better safety and higher energy density.

However, when it comes to EVs, solid-state batteries are not ideal since they require high external stack pressure to stay intact while operating.

Yao’s team learned that tiny empty spaces, or voids, form within the solid-state batteries and merge into a large gap, which causes them to fail. The team found that adding small amounts of alloying elements, like magnesium, can help close the voids and help the battery continue to function. The team captured it in real-time with high-resolution videos that showed what happens inside a battery while it’s working under a scanning electron microscope.

“By carefully adjusting the battery’s chemistry, we can significantly lower the pressure needed to keep it stable,” Lihong Zhao, the first author of this work, a former postdoctoral researcher in Yao’s lab and now an assistant professor of electrical and computer engineering at UH, said in the release. “This breakthrough brings solid-state batteries much closer to being ready for real-world EV applications.”

The team says it plans to build on the alloy concept and explore other metals that could improve battery performance in the future.

“It’s about making future energy storage more reliable for everyone,” Zhao added.

The research was supported by the U.S. Department of Energy’s Battery 500 Consortium under the Vehicle Technologies Program. Other contributors were Min Feng from Brown; Chaoshan Wu, Liqun Guo, Zhaoyang Chen, Samprash Risal and Zheng Fan from UH; and Qing Ai and Jun Lou from Rice.

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