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Houston rolls out discounts on solar installation to move the needle on lower-carbon options

Houstonians, here's your sign to score solar panels at a discount. Photo by Kindel Media/Pexels

A city of Houston initiative is offering a discounted rate for solar panel installation for homeowners and small businesses.

This year's Solar Switch Houston deal produces an average savings of $5,315 for each Houstonian who registers with Solar Switch, according to a news release from the city, which partnered with the nonprofit Solar United Neighbors. It's the third time the organizations have teamed up to provide the discount.

“We had great success with the first two rounds of Solar Switch Houston where residents were provided with a trusted information source and a substantial group discount,” City of Houston Interim Chief Resilience and Sustainability Officer Nicholas Hadjigeorge says in the release. “I am confident that the savings attained in the third round of the program will play a crucial role for residents deciding if solar is the right choice."

The organization vetted solar installers, factoring in "product quality, warranties, company financial stability, and history of customer satisfaction," per the news release. These installers then participated in a reverse auction to provide the discounted services. Those interested in learning more can head to SolarSwitch.com/Houston.

"Everyone deserves to benefit from generating their own solar energy. That’s why we designed Solar Switch – to make installing solar affordable and straightforward for more Houstonians than ever before," America Garcia, Texas program director for Solar United Neighbors, says in the release. "I’m excited to see how much we can broaden the reach and benefits of solar group buying with the continuation of Solar Switch Houston."

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A View From HETI

A team from UH has published two breakthrough studies that could help cut costs and boost efficiency in carbon capture. Photo courtesy UH.

A team of researchers at the University of Houston has made two breakthroughs in addressing climate change and potentially reducing the cost of capturing harmful emissions from power plants.

Led by Professor Mim Rahimi at UH’s Cullen College of Engineering, the team released two significant publications that made significant strides relating to carbon capture processes. The first, published in Nature Communications, introduced a membraneless electrochemical process that cuts energy requirements and costs for amine-based carbon dioxide capture during the acid gas sweetening process. Another, featured on the cover of ES&T Engineering, demonstrated a vanadium redox flow system capable of both capturing carbon and storing renewable energy.

“These publications reflect our group’s commitment to fundamental electrochemical innovation and real-world applicability,” Rahimi said in a news release. “From membraneless systems to scalable flow systems, we’re charting pathways to decarbonize hard-to-abate sectors and support the transition to a low-carbon economy.”

According to the researchers, the “A Membraneless Electrochemically Mediated Amine Regeneration for Carbon Capture” research paper marked the beginning of the team’s first focus. The research examined the replacement of costly ion-exchange membranes with gas diffusion electrodes. They found that the membranes were the most expensive part of the system, and they were also a major cause of performance issues and high maintenance costs.

The researchers achieved more than 90 percent CO2 removal (nearly 50 percent more than traditional approaches) by engineering the gas diffusion electrodes. According to PhD student and co-author of the paper Ahmad Hassan, the capture costs approximately $70 per metric ton of CO2, which is competitive with other innovative scrubbing techniques.

“By removing the membrane and the associated hardware, we’ve streamlined the EMAR workflow and dramatically cut energy use,” Hassan said in the news release. “This opens the door to retrofitting existing industrial exhaust systems with a compact, low-cost carbon capture module.”

The second breakthrough, published by PhD student Mohsen Afshari, displayed a reversible flow battery architecture that absorbs CO2 during charging and releases it upon discharge. The results suggested that the technology could potentially provide carbon removal and grid balancing when used with intermittent renewables, such as solar or wind power.

“Integrating carbon capture directly into a redox flow battery lets us tackle two challenges in one device,” Afshari said in the release. “Our front-cover feature highlights its potential to smooth out renewable generation while sequestering CO2.”

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