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

Sustainable sculpture to power Houston multicultural arts building

arts meets energy transition

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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Houston expert discusses the clean energy founder's paradox

Guest Column

Everyone tells you to move fast and break things. In clean energy, moving fast without structural integrity means breaking the only planet we’ve got. This is the founder's paradox: you are building a company in an industry where the stakes are existential, the timelines are glacial, and the capital requires patience.

The myth of the lone genius in a garage doesn’t really apply here. Clean energy startups aren’t just fighting competitors. They are fighting physics, policy, and decades of existing infrastructure. This isn’t an app. You’re building something physical that has to work in the real world. It has to be cheaper, more reliable, and clearly better than fossil fuels. Being “green” alone isn’t enough. Scale is what matters.

Your biggest risks aren’t competitors. They’re interconnection delays, permitting timelines, supply chain fragility, and whether your first customer is willing to underwrite something that hasn’t been done before.

That reality creates a brutal filter. Successful founders in this space need deep technical knowledge and the ability to execute. You need to understand engineering, navigate regulation, and think in terms of markets and risk. You’re not just selling a product. You’re selling a future where your solution becomes the obvious choice. That means connecting short-term financial returns with long-term system change.

The capital is there, but it’s smarter and more demanding. Investors today have PhDs in electrochemistry and grid dynamics. They’ve been burned by promises of miracle materials that never left the lab. They don't fund visions; they fund pathways to impact that can scale and make financial sense. Your roadmap must show not just a brilliant invention, but a clear, believable plan to drive costs down over time.

Capital in this sector isn’t impressed by ambition alone. It wants evidence that risk is being retired in the right order — even if that means slower growth early.

Here’s the upside. The difficulty of clean energy is also its strength. If you succeed, your advantage isn’t just in software or branding. It’s in hardware, supply chains, approvals, and years of hard work that others can’t easily copy. Your real competitors aren’t other startups. They’re inertia and the existing system. Winning here isn’t zero-sum. When one solution scales, it helps the entire market grow.

So, to the founder in the lab, or running field tests at a remote site: your pace will feel slow. The validation cycles are long. But you are building in the physical world. When you succeed, you don’t have an exit. You have a foundation. You don't just have customers; you have converts. And the product you ship doesn't just generate revenue; it creates a legacy.

If your timelines feel uncomfortable compared to software, that’s because you’re operating inside a system designed to resist change. And let’s not forget you are building actual physical products that interact with a complex world. Times are tough. Don’t give up. We need you.

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Nada Ahmed is the founding partner at Houston-based Energy Tech Nexus.

Houston maritime startup raises $43M to electrify cargo vessels

A Houston-based maritime technology company that is working to reduce emissions in the cargo and shipping industry has raised VC funding and opened a new Houston headquarters.

Fleetzero announced that it closed a $43 million Series A financing round this month led by Obvious Ventures with participation from Maersk Growth, Breakthrough Energy Ventures, 8090 Industries, Y Combinator, Shorewind, Benson Capital and others. The funding will go toward expanding manufacturing of its Leviathan hybrid and electric marine propulsion system, according to a news release.

The technology is optimized for high-energy and zero-emission operation of large vessels. It uses EV technology but is built for maritime environments and can be used on new or existing ships with hybrid or all-electric functions, according to Fleetzero's website. The propulsion system was retrofitted and tested on Fleetzero’s test ship, the Pacific Joule, and has been deployed globally on commercial vessels.

Fleetzero is also developing unmanned cargo vessel technology.

"Fleetzero is making robotic ships a reality today. The team is moving us from dirty, dangerous, and expensive to clean, safe, and cost-effective. It's like watching the future today," Andrew Beebe, managing director at Obvious Ventures, said in the news release. "We backed the team because they are mariners and engineers, know the industry deeply, and are scaling with real ships and customers, not just renderings."

Fleetzero also announced that it has opened a new manufacturing and research and development facility, which will serve as the company's new headquarters. The facility features a marine robotics and autonomy lab, a marine propulsion R&D center and a production line with a capacity of 300 megawatt-hours per year. The company reports that it plans to increase production to three gigawatt-hours per year over the next five years.

"Houston has the people who know how to build and operate big hardware–ships, rigs, refineries and power systems," Mike Carter, co-founder and COO of Fleetzero, added in the release. "We're pairing that industrial DNA with modern batteries, autonomy, and software to bring back shipbuilding to the U.S."

Shell partners with UK-based co. for hydrogen electrolyzer pilot

ultra-efficient electrolyzer

Shell Global Solutions International, a subsidiary of Shell, which maintains its U.S. headquarters in Houston, has signed a collaboration agreement with London-based Supercritical Solutions to advance Supercritical’s ultra-efficient hydrogen electrolyzer technology toward a field pilot demonstration.

In the deal, the companies will collaborate on a paid technology feasibility study that will support the evaluation and planning of the pilot demonstration, according to a news release. Supercritical Solutions’ technology aims to deliver high-efficiency renewable hydrogen at a lower cost for the industrial hydrogen market.

"Signing this collaboration agreement with Shell is a major milestone for Supercritical Solutions and an important step on our commercialisation journey,” Luke Tan, co-founder of Supercritical, said in the news release. “We are directly addressing the cost and complexity barriers facing the renewable hydrogen market. We are excited to move forward with a company like Shell, whose global leadership has been proven to accelerate innovative technologies to market.”

Supercritical’s hydrogen electrolyser technology can operate at high temperatures and pressures of up to 220 bar without the need for an external hydrogen compressor, rare-earth materials or easily degradable membranes. The technology removes the typical compression step in the process while delivering hydrogen at industry standards. It requires significantly less energy than many traditional electrolyzers and is more cost-efficient.

This recent investment builds on an ongoing relationship between Shell and Supercritical. Supercritical was founded in 2020 and was runner-up in Shell’s New Energy Challenge, which helps startups and scaleups develop sustainable technologies, in 2021. Shell Ventures then invested in Supercritical’s Series A funding round in 2024 with Toyota Ventures.

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