Houston unveils details for first-of-its-kind art installation that generates clean energy

power of art

The new "Arch of Time" in Houston’s East End will generate 400,000 kilowatt-hours of power annually. Photo courtesy Land Art Generator Initiative.

Local and state leaders shared updated plans this month on a first-of-its-kind structure that uses art to generate solar energy.

Slated to be located at Mason Park in Houston’s East End, the new "Arch of Time" is a freestanding sundial art installation that will generate 400,000 kilowatt-hours of power per year using 60,000 solar photovoltaic cells on its south-facing exterior.

The project will be part of a larger pavilion at the park and is being led by the renewable energy organization Land Art Generator Initiative (LAGI). Architect Riccardo Mariano will design the space. It will be funded by donations and cost $20 million, organizers say.

The project, originally known as "Arco del Tiempo," was announced in 2023. At the time, the city shared the installation would be installed at Guadalupe Plaza Park in 2024.

The project's latest update was announced during Houston City Hall’s Earth Day 2025, where organizers described it as "a monument to Houston's past, present, and future leadership as the energy capital of the world."

The 100-foot structure will also serve as a 25,000-square-foot shaded area, or microclimate, during hot days. It will also feature a stage performance space and a power hub for emergencies. Due to the artwork's north opening and south narrowing, it is also expected to help channel the breezes, according to LAGI.

The organization says it is also expected to generate enough power to fuel all of Mason Park.

“Mason Park will soon, perhaps become the first major park in the country that is powered entirely by the sun,” Houston City Council Member Joaquin Martinez said at the news conference. “The economic benefits are clear.”

Former Houston Park and Recreation director Joe Turner selected the East End park as the location of the arch and believes it could be used as a STEM tool for students.

“All the STEM education that can come from the way we use the solar collectors, the way it has a water collection system that's going to collect the runoff water, there's so much we can do to teach kids STEM,” said in a Houston Park and Recreation Department video.

The project is about two years away from being completed. LAGI says the Arch of Time will be the “first public art project of its scale to stand as a net-positive contribution to a sustainable climate.”

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Discovery Green's Earth Day event generated more than 3,800 pounds of garbage — and over 90 percent of it was diverted from landfills. Photo courtesy of Discovery Green

Houston organization celebrates zero waste goal

earth day win

Discovery Green celebrated Earth Day with a major milestone this year — achieving it’s Zero Waste goal.

The nonprofit, along with Citizens’ Environmental Coalition and Houston Public Works, are announced that the 2024 Green Mountain Energy Earth Day, which generated more than 3,800 pounds of garbage, diverted the majority of that waste from landfills. "Zero Waste," as defined by the Environmental Protection Agency, is successfully diverting at least 90 percent of waste from the landfill.

On Earth Day, Discovery Green composted 2,200 pounds of waste and recycled 1,300 pounds of trash.

“Part of Discovery Green Conservancy’s mission is to serve as a village green for our city and be a source of health and happiness for all. Our goal is to sustain an exceptional environment for nature and people,” Discover Green President Kathryn Lott says in a news release. “We are beyond thrilled to have achieved Zero Waste certification.”

The achievement was made possible by volunteers from the University of Houston – Downtown.

Steve Stelzer, president of Citizens’ Environmental Coalition’s board of directors, acknowledged how rare the achievement is in a public space in a major city like Houston.

“Discovery Green Conservancy stepped up and made a commitment to weigh, measure and record everything. They should be congratulated to have done this at this scale,” Stelzer adds. “The Conservancy said they were going to do it and they did. It’s an amazing accomplishment.”

The 2024 event included:

31,000 visitors in attendance
60 + exhibitors
100 + volunteers
12 artists
- 9 chalk artists
- Donkeeboy and Donkeemom
- Mark Bradford
25 Mark Bradford artworks made of scrap presented in partnership with Houston First
4 short films shown
3,836.7 pounds of waste collected during Green Mountain Energy Earth Day

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Houston scientists develop 'recharge-to-recycle' reactor for lithium-ion batteries

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Engineers at Rice University have developed a cleaner, innovative process to turn end-of-life lithium-ion battery waste into new lithium feedstock.

The findings, recently published in the journal Joule, demonstrate how the team’s new “recharge-to-recycle” reactor recharges the battery’s waste cathode materials to coax out lithium ions into water. The team was then able to form high-purity lithium hydroxide, which was clean enough to feed directly back into battery manufacturing.

The study has major implications for the electric vehicle sector, which significantly contributes to the waste stream from end-of-life battery packs. Additionally, lithium tends to be expensive to mine and refine, and current recycling methods are energy- and chemical-intensive.

“Directly producing high-purity lithium hydroxide shortens the path back into new batteries,” Haotian Wang, associate professor of chemical and biomolecular engineering, co-corresponding author of the study and co-founder of Solidec, said in a news release. “That means fewer processing steps, lower waste and a more resilient supply chain.”

Sibani Lisa Biswal, chair of Rice’s Department of Chemical and Biomolecular Engineering and the William M. McCardell Professor in Chemical Engineering, also served as co-corresponding author on the study.

“We asked a basic question: If charging a battery pulls lithium out of a cathode, why not use that same reaction to recycle?” Biswal added in the release. “By pairing that chemistry with a compact electrochemical reactor, we can separate lithium cleanly and produce the exact salt manufacturers want.”

The new process also showed scalability, according to Rice. The engineers scaled the device to 20 square centimeters, then ran a 1,000-hour stability test and processed 57 grams of industrial black mass supplied by industry partner Houston-based TotalEnergies. The results produced lithium hydroxide that was more than 99 percent pure. It also maintained an average lithium recovery rate of nearly 90 percent over the 1,000-hour test, showing its durability. The process also worked across multiple battery chemistries, including lithium iron phosphate, lithium manganese oxide and nickel-manganese-cobalt variants.

Looking ahead, the team plans to scale the process and consider ways it can sustain high efficiency for greater lithium hydroxide concentrations.

“We’ve made lithium extraction cleaner and simpler,” Biswal added in the release. “Now we see the next bottleneck clearly. Tackle concentration, and you unlock even better sustainability.

Houston grid's $2.9 billion upgrade tops energy news to know

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Editor's note: It's time to look back at the top energy transition news in recent weeks. Here are the five most-read EnergyCapitalHTX stories from November 16-30:

1. CenterPoint gets go-ahead for $2.9B upgrade of Houston grid

CenterPoint customers in the Houston area will pay an extra $1 a month to cover costs of the recently approved $2.9 billion resiliency plan starting next year. Photo via centerpointenergy.com

Texas utility regulators have given the green light for Houston-based CenterPoint Energy to spend $2.9 billion on strengthening its Houston-area electric grid to better withstand extreme weather. The cost of the plan is nearly $3 billion below what CenterPoint initially proposed to the Public Utility Commission of Texas. Continue reading.

2. Houston company wins contract to operate South Texas wind farm

Houston-based CAMS will operate the Mesteño Wind Project, which is home to one of the tallest wind turbine installations in the U.S. Photo via Unsplash.

Houston-based Consolidated Asset Management Services (CAMS), which provides services for owners of energy infrastructure, has added the owner of a South Texas wind power project to its customer list. The new customer, InfraRed Capital Partners, owns the 202-megawatt Mesteño Wind Project in the Rio Grande Valley. Continue reading.

3. Google's $40B investment in Texas data centers includes energy infrastructure

Google is investing in Texas. Courtesy of Google

Google is investing a huge chunk of money in Texas: According to a release, the company will invest $40 billion on cloud and artificial intelligence (AI) infrastructure, with the development of new data centers in Armstrong and Haskell counties. The company announced its intentions at a meeting on November 14 attended by federal, state, and local leaders including Gov. Greg Abbott who called it "a Texas-sized investment." Continue reading.

4. Chevron and ExxonMobil feed the need for gas-powered data centers

Chevron plans to launch its first AI data center power project in West Texas in 2027. Photo via Chevron.com

Two of the Houston area’s oil and gas goliaths, Chevron and ExxonMobil, are duking it out in the emerging market for natural gas-powered data centers—centers that would ease the burden on electric grids. Chevron said it’s negotiating with an unnamed company to supply natural gas-generated power for the data center industry, whose energy consumption is soaring mostly due to AI. Continue reading.

5. Solidec partners with Australian company for clean hydrogen peroxide pilot

Houston-based Solidec has partnered with Lynas Rare Earth on a clean hydrogen peroxide production pilot in Australia. Photo courtesy Greentown Labs.

Solidec has partnered with Australia-based Lynas Rare Earth, an environmentally responsible producer of rare earth oxides and materials, to reduce emissions from hydrogen peroxide production. The partnership marks a milestone for the Houston-based clean chemical manufacturing startup, as it would allow the company to accelerate the commercialization of its hydrogen peroxide generation technology. Continue reading.

DOE taps Texas companies for $56M in Strategic Petroleum Reserve deliveries

reserve refill

Two companies with ties to the Houston area have been awarded federal contracts totaling nearly $55.8 million to supply about 1 million barrels of crude oil for the nation’s depleted Strategic Petroleum Reserve.

Houston-based Trafigura Trading will provide two-thirds of the oil, and Dallas-based Energy Transfer Crude Marketing will provide the remaining one-third. Energy Transfer, the parent company of Energy Transfer Crude Marketing, operates a 330-acre oil terminal at the Houston Ship Channel.

The U.S. Department of Energy (DOE), which awarded the contracts, said Trafigura and Energy Transfer will deliver the crude oil from Dec. 1 through Jan. 31 to the Strategic Petroleum Reserve’s Bryan Mound storage site near Freeport.

The Strategic Petroleum Reserve, the world’s largest emergency supply of crude oil, can hold up to 714 million barrels of crude oil across 61 underground salt caverns at four sites along the Gulf Coast. The reserve currently contains 410 million barrels of crude oil. During the pandemic, the Biden administration ordered a 180 million-barrel drawdown from the reserve to help combat high gas prices triggered by Russia’s war with Ukraine.

The four strategic reserve sites are connected to 24 Gulf Coast refineries, and another six refineries in Kentucky, Michigan and Ohio.

“Awarding these contracts marks another step in the important process of refilling this national security asset,” U.S. Energy Secretary Chris Wright said.

In March, Wright estimated it would take $20 billion and many years to fill the Strategic Petroleum Reserve to its maximum capacity, according to Reuters

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