The City of Houston is aiming to have Arco del Tiempo installed in 2024. Photo courtesy of The City of Houston

The City of Houston has unveiled the first look at the latest permanent public artwork that will be installed in the Second Ward in 2024. The sculpture is the first-ever environmentally sustainable art piece that will generate electricity for the nearby City-owned Latino multicultural performing arts theater.

Arco del Tiempo (Arch of Time) is a 100-foot tall arch designed by Berlin-based artist and architect Riccardo Mariano. Several years have been put into the making of this project, dating as far back as 2019. Mariano had entered the idea into a Land Art Generator Initiative (LAGI) design competition in the Houston sister-city of Abu Dhabi. From there, it was chosen to be developed full-scale and installed at Guadalupe Plaza Park.

According to a press release, the sculpture can measure time and cast beams of sunlight onto the ground, creating a connection between "the celestial and the terrestrial" through the geometry of the design.

The light beams are different based on the four seasons and the time of day, constantly shifting and responding to the latitude and longitude of the city from space. Mariano said that his sculpture is a "practical example" of how physical art can interact with the abstract, such as the Earth's movement around the sun.

"The apparent movement of the sun in the sky activates the space with light and colors and engages viewers who participate in the creation of the work by their presence," said Mariano. "Arco del Tiempo merges renewable energy generation with public space and into the everyday life of the Second Ward. Inspired by science and powered by renewable energy, the artwork is a bridge between art and technology and encourages educational purposes while improving public space. At night the space within the arch will be used as a stage for outdoor public events.”

"At night the space within the arch will be used as a stage for outdoor public events,” Riccardo Mariano said.Photo courtesy of The City of Houston

Arco del Tiempo will do more than just be an aesthetically pleasing sight for the community. Its meaningful, functional purpose will be to generate about 400,000 kilowatt-hours of electricity per year, and power the Talento Bilingüe de Houston. LAGI founding co-director Elizabeth Monoian said in the release the sculpture will generate over 12 million kilowatt-hours of power throughout its lifetime, which equals the removal of 8,500 metric tons of carbon dioxide from the atmosphere.

"Through the clean energy it produces, Arco del Tiempo will pay back its embodied carbon footprint," Monoian said. "In other words, all the energy that went into its making—from the smelting of the steel to the drilling that puts the final cladding into place—will be offset through the energy it generates. Beyond its break-even point, which we will track and celebrate with the community, the artwork will be a net-positive contributor to a healthy climate and the planet will be better off for its existence.”

In a statement, Houston Mayor Sylvester Turner praised the unique art piece as more than just a sculpture, but as a "monument to a new era of energy."

"The City of Houston has always stood at the vanguard of energy innovation and the Arco del Tiempo artwork stands in that tradition, highlighting Houston’s role as an art city and as global leader in the energy transition," Mayor Turner said. "We are inspired by the vision and creative thinking. Marrying clean energy, the built environment, and truly World Class art is Houston.”

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This article originally ran on CultureMap.

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Air Liquide and Hyundai ink partnership to scale hydrogen economy

green team

Air Liquide, which maintains its U.S. headquartered in Houston, and South Korea-based Hyundai Motor Group are expanding their strategic partnership to accelerate the growth of the global hydrogen ecosystem.

The renewal of the companies’ Memorandum of Understanding (MoU) was announced at the Hydrogen Council CEO Summit in Seoul last week. Together, the companies will work to scale hydrogen production, storage, transportation and utilization across Europe, Korea and the United States with a concentration on heavy-duty transport, logistics and public transportation.

Hyundai hopes Air Liquide's technical expertise will help contribute to more sustainable energy and carbon neutrality.

The companies plan to develop hydrogen refueling networks and storage capacity that can meet growing demands. They also plan to commercialize fuel cell electric vehicles (FCEVs) for diverse applications like public transportation, logistics fleets and ports.

"We are delighted to strengthen our partnership with Hyundai Motor Group,” Armelle Levieux, vice president of innovation, electronics and hydrogen at Air Liquide, said in a news release. “Collaborations like this between leaders across the value chain are essential to building the hydrogen economy.”

The partnership has already shown strong progress in South Korea, according to the companies, with Hyundai rolling out more than 2,000 hydrogen buses and 37,000 passenger fuel cell vehicles, with more expected by 2026. Additionally, Air Liquide has boosted supply capabilities in the region with the new state-of-the-art high-pressure hydrogen filling center, Lotte-Air Liquide Ener’Hy, in Daesan, an industrial hub near Seoul.

Air Liquide and Hyundai previously signed an MoU in 2018, along with other major South Korean players, agreeing to grow the hydrogen economy.

Hazardous waste company with Houston presence to make $3B acquisition

big deal

Veolia, a Boston-based company with major operations in Texas, is purchasing hazardous-waste company Clean Earth from Enviri as part of a $3 billion deal.

Veolia is a private water operator, technology provider and hazardous waste and pollution treatment company that operates a large hazardous waste treatment and incineration facility in Port Arthur. Hazardous waste treatment is a growing sector as the clean energy, semiconductor manufacturing, healthcare and pharmaceutical industries generate high levels of waste that need to be handled safely.

Acquiring Clean Earth’s 82 facilities, which include 19 EPA-permitted sites, will expand Veolia’s reach into 10 new states and will position the company as the second-largest hazardous waste operator in the U.S., according to a news release. The deal is Veolia’s sixth and largest North American acquisition of 2025.

“(The acquisition) allows us to unlock the full value potential of our U.S. hazardous waste activities and to double our size on this critical, fast-growing sector, creating a No. 2 player,” Estelle Brachlianoff, CEO of Veolia, said in a news release. “We reinforce our global capacities in hazardous waste and further increase our international footprint.”

Veolia’s Port Arthur facility specializes in servicing generators with large-volume waste treatment requirements.

The transaction is expected to close mid-2026. Veolia hopes the increased exposure into industries such as retail and healthcare will help to offer a full range of environmental services across the U.S.

“This continued transformation of our portfolio enhances the growth profile and strength of our group, uniquely positioned to tackle the sustained demand for environmental security,” Brachlianoff added in the release.

Reliant partners to expand Texas virtual power plant and home battery use

energy incentives

Houston’s Reliant and San Francisco tech company GoodLeap are teaming up to bolster residential battery participation and accelerate the growth of NRG’s virtual power plant (VPP) network in Texas.

Through the new partnership, eligible Reliant customers can either lease a battery or enter into a power purchase agreement with GoodLeap through its GoodGrid program, which incentivises users by offering monthly performance-based rewards for contributing stored power to the grid. Through the Reliant GoodLeap VPP Battery Program, customers will start earning $40 per month in rewards from GoodLeap.

“These incentives highlight our commitment to making homeowner battery adoption more accessible, effectively offsetting the cost of the battery and making the upgrade a no-cost addition to their homes,” Dan Lotano, COO at GoodLeap, said in a news release.“We’re proud to work with NRG to unlock the next frontier in distributed energy in Texas. This marks an important step in GoodLeap reaching our nationwide goal of 1.5 GW of managed distributed energy over the next five years.”

Other features of the program include power outage plans, with battery reserves set aside for outage events. The plan also intelligently manages the battery without homeowner interaction.

The partnership comes as Reliant’s parent company, NRG, continues to scale its VPP program. Last year, NRG partnered with California-based Renew Home to distribute hundreds of thousands of VPP-enabled smart thermostats by 2035 in an effort to help households manage and lower their energy costs.

“We started building our VPP with smart thermostats across Texas, and now this partnership with GoodLeap brings home battery storage into our platform,” Mark Parsons, senior vice president and head of Texas energy at NRG, said in a the release. “Each time we add new devices, we’re enabling Texans to unlock new value from their homes, earn rewards and help build a more resilient grid for everyone. This is about giving customers the opportunity to actively participate in the energy transition and receive tangible benefits for themselves and their communities.