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3 tips for Houston energy professionals keeping cool amid record highs

Preventing heat stress and illness relies heavily on preparedness, education, communication, flexibility, and hydration. Photo via Getty Images

Summer and fall in Houston are full of daily high-temperature records. In 2023, over 2,300 heat-related deaths occurred within the US, and with forecasts predicting even higher temperatures throughout the rest of the summer, the concern for heat-wave-related illness should be top of mind.

Construction workers, for example, are 13 percent more likely than those in the general population to suffer fatalities caused by heat-related illnesses. As the summer heat continues, safety must be a top priority for anyone working outdoors.

Prioritizing worker safety is paramount in our area where we experience an extended summer. The following tips will help business leaders and managers prioritize the health and well-being of workers.

Education

Developing a plan is the first step in creating a culture that prioritizes heat safety. To mitigate employee risk, regular education throughout the year should occur to help workers identify the signs of heat illness. In especially hot months, regular communication and monitoring throughout the day is paramount.

Environmental monitoring tools like the OSHA-NIOSH heat safety app should be a part of heat safety plans. The app helps leaders monitor temperature, humidity, and heat index on individual job sites. Additionally, wearable monitors that track vitals like heart rate can be invaluable for identifying signs of heat illness. However, these tools require thorough education to ensure effective use.

Flex Schedules

Working early in the day is an important and popular strategy in the summer months. It is impossible to avoid the heat completely, so providing cool areas, such as cool job site trailers for resting at breaks or meals can help keep employees from overheating. Additionally, Portacool units effectively cool the surrounding area by up to 30 degrees. These mobile devices can be used both indoors and outdoors, working by pulling hot air through a medium that causes water to evaporate. A fan then disperses the cooler air, creating a more comfortable environment for workers.

Heat acclimatization is crucial, especially for new outdoor crew members. Safety professionals should gradually increase their exposure to the elements to keep them healthy. It's also important to ease workers back into increased heat exposure after an extended absence.

Hydration

Proper hydration is essential for heat safety. Employees should be encouraged to take water breaks and drink electrolytes, with supervisors regularly reminding them to do so. Items like electrolyte ice pops can help maintain a healthy workforce on especially hot days. Body cool stations equipped with cold drinks, ice coolers, and cooling towels can effectively cool the body from the inside out. Offering various ways for employees to stay hydrated and cool demonstrates the organization’s commitment to worker well-being.

Heat safety is a critical concern. Preventing heat stress and illness relies heavily on preparedness, education, communication, flexibility, and hydration. Businesses employing outdoor workers must be aware of the dangers posed by heat and humidity, and the importance of recognizing signs of heat stress. Prioritizing heat safety ensures a safe summer and fall in Houston's challenging climate.

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Reggie Asare is director of environmental health and safety at Skanska USA Building in Houston. Skanska is one of the world's leading project development and construction groups.

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A View From HETI

Two Houston startups have landed on the 2026 Cleantech 50 to Watch list. Photo via Getty Images

Two Rice University spinouts, Coflux Purification and DexMat, appear on a new list of the world’s 50 cleantech companies to watch.

Cleantech Group’s 2026 Cleantech 50 to Watch list recognizes early-stage companies “creating groundbreaking solutions to address some of the world’s most pressing environmental and sustainability challenges.”

Cleantech Group, a market research, consulting, and events company, selects the 50 honorees based on insights from analysts and early-stage innovators, along with public nominations.

Destroying “forever chemicals”

Coflux, founded in 2024, offers an onsite treatment system that captures and destroys manufactured “forever chemicals”—per- and polyfluoroalkyl substances—in water and wastewater. It’s a member of Greentown Houston.

Alec Ajnsztajn, CEO; Jeremy Daum, chief technology officer; and Dana Vazquez, chief commercial officer, co-founded Coflux. Ajnsztajn and Daum earned doctoral degrees from Rice, and Vazquez earned an MBA from the university.

Coflux spun out of Rice labs directed by professors Rafael Verduzco and Pulickel Ajayan.

Last year, Coflux received a $175,000 grant from the U.S. Food and Drug Administration’s National Institute of Food and Agriculture. The startup has also raised more than $500,000 in non-dilutive funding, including $80,000 awarded in 2024 by Rice’s One Small Step Grant program.

Promoting an alternative to copper

DexMat, founded in 2015, produces carbon nanotube products such as fibers, yarns, cables, and fabric. The company’s products address demand for materials that can reduce carbon emissions, according to CB Insights.

Its main product, Galvorn, is a copper alternative made of carbon nanotube fibers. CB Insights says Galvorn is engineered to be lighter and stronger than traditional conductive materials like carbon and steel. It’s used in industries such as energy, aerospace, defense, automotive, consumer electronics, and health care.

DexMat emerged from Matteo Pasquali’s Carbon Lab at Rice. Pasquali, co-founder of DexMat, co-invented the company’s technology with the late Nobel Prize-winning chemist Rick Smalley. Smalley was a professor of chemistry, physics, and astronomy at Rice.

Pasquali is a professor of chemical and biomolecular engineering, chemistry, materials science, and nanoengineering at Rice. He co-founded DexMat with Rice graduate Dmitri Tsentalovich, the company’s director of product innovation.

Earlier this year, DexMat raised $5 million in seed funding from Non Sibi Ventures, Governance Partners, Tailwind Futures, BetterWay, Capital Factory, and other investors. The company also secured $3 million in non-dilutive funding.

In 2023, DexMat raised $3 million in a pre-seed round led by Shell Ventures.

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