Houston solar rally, renewable energy celebration to take place this weekend

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Sun Day Houston will be held this Sunday, Sept. 21. Photo via Upslash.

Local organizations will celebrate solar, wind and renewable energy this Sunday, Sept. 21, during Sun Day Houston.

Timed with the autumn equinox, the inaugural event will bring together speakers, exhibits, workshops and hands-on activities that promote the adoption of clean power sources outside of Christ the King Lutheran Church at 2353 Rice Blvd., near Rice University. It will take place from 2-4:30 p.m.

Featured speakers include:

Daniel Cohan, professor of civil and environmental engineering at Rice, who will speak on the science of renewable energy and its growing role in ERCOT and the national U.S. energy grid
Andrea Oyuela, manager of the Harris County Solar for All program, who will speak on Harris County’s efforts to expand solar energy access to underserved communities and the county's leadership role in the Texas Solar for All Coalition

Attendees will also be able to participate in mobile solar and home solar battery displays, an electric vehicle show-and-tell, and a rain barrel workshop. Other workshops include the Tips and Tricks for Going Solar Workshop and the Welcoming the Energy Transition Workshop.

Exhibits will be hosted by:

Harris County Sustainability Division
Solar United Neighbors
Environment Texas
Public Citizen
Houston Chapter, Citizens Climate Lobby
Texas Campaign for the Environment
Houston Electric Vehicle Association
Houston Climate Boulder Project
Turtle Island Restoration Network
Climate Conversation Brazoria County
Sunrise Movement
Rice Wildlife Conservation Corps

Sun Day Houston is part of hundreds of Sun Day events worldwide. TH!RD ACT, a national nonprofit founded by environmentalist Bill McKibben, is serving as the primary sponsor. It is co-sponsored by 22 Gulf Coast environmental organizations, including Sierra Club of Houston, Harris County Sustainability Division, the Green Building Council, and many others. Find more information here.

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The end of the solar tax credit is not the end of the solar industry. Photo by Kindel Media/Pexels

Texas still has its best solar days ahead of it, even as federal tax credit sunsets

Guest Column

If you follow energy policy, you already know that Congress repealed the 30% residential solar tax credit. This poses a significant challenge for continued growth in the market. It also provides an opportunity for the industry to grow in a smart, consumer-friendly way. That’s why in Texas, the story is what happens next: The state and the market are continuing to make going solar much simpler, better, and cheaper.

Policies are moving in the right direction. For example, starting this month, a bipartisan permitting reform takes effect that will cut red tape for home solar and batteries. It lets licensed third-party professionals review plans and perform inspections, requires agencies to post standardized rules and fees online, and allows homeowners to start work once those third-party approvals are submitted. It also shifts negligence liability to the third-party reviewer, thereby reducing municipal risk while accelerating safe, code-compliant installs. In plain English: fewer bottlenecks, faster installs, and lower “soft costs.”

As a result, Houston is already piloting the National Renewable Energy Lab’s free SolarAPP+ to auto-approve standard solar designs, which cuts roughly 12 days from typical timelines. Independent analyses estimate that these automated permitting rules could trim rooftop solar costs by thousands. In other words, even small, costless policy changes like this can save you almost as much money as the huge solar tax credit did, and these great reforms are happening all the time, and they make the process much more convenient and reliable.

While Texas is making solar simpler, it’s also helping consumers have a good experience when going solar. As of this month, Texas law now also requires solar salespeople to register with the Texas Department of Licensing and Regulation. The same bill standardizes contracts and provides for mandatory disclosures of upfront cost and financing terms. The whole solar industry benefits when customers have a good solar experience. Word of mouth is vital to keeping solar shining.

There's yet another pro-solar Texas law that's also going into effect this month: in addition to SB 1202 (streamlining solar permits) and SB 1036 (regulating solar sales tactics), the legislature is also supporting the dissemination of information about your options when going solar via SB 1697. You can read more about these three brand-new pro-solar state laws here.

The end of the solar tax credit is not the end of the solar industry. Far from it.

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Dori Wolf is Senior Texas Program Associate for Solar United Neighbors, a vendor and neutral nonprofit with more than 15 years helping people go solar. Their free Solar Help Desk walks you through the details. Also check out their Go Solar Guide and Solar Owner’s Manual.

Solar United Neighbors also helps you find the best retail electricity plan through its partnership with Texas Power Guide.

The Lone Star State is losing a nearly $250 million grant awarded last year to the Harris County-led Texas Solar for All Coalition. Photo via Getty Images.

EPA scraps $7B solar program, stripping Texas of hundreds of millions in clean energy funds

funding cut

The U.S. Environmental Protection Agency is ending a $7 billion Biden-era program that was supposed to enable low-income Americans to access affordable solar power. The program, which EPA Administrator Lee Zeldin called a “boondoggle,” would have benefited more than 900,000 U.S. households.

In line with the EPA’s action, the Lone Star State is losing a $249.7 million grant awarded last year to the Harris County-led Texas Solar for All Coalition. The grant money would have equipped more than 46,000 low-income and disadvantaged communities and households in Texas with residential solar power. The nonprofit Solar United Neighbors organization said Texas had already begun to roll out this initiative.

Also slipping out of Texas’ hands are:

A more than $156 million 19-state grant awarded to the Clean Energy Fund of Texas in partnership with the Bullard Center for Environmental and Climate Justice at Houston’s Texas Southern University. The Clean Energy Fund is a Houston-based “green bank” that backs investments in solar and wind power.
Part of a $249.3 million multistate grant awarded to the Community Power Coalition’s Powering America Together Program. The nonprofit Inclusive Prosperity Capital organization leads the coalition.
Part of a $249.8 million multistate grant awarded to the Solar Access for Nationwide Affordable Housing Program, led by the nonprofit GRID Alternatives organization.

In a post on the X social media platform, Zeldin said the recently passed “One Big Beautiful Bill” killed the Greenhouse Gas Reduction Fund, which would have financed the $7 billion Solar for All program.

“The bottom line is this: EPA no longer has the statutory authority to administer the program or the appropriated funds to keep this boondoggle alive,” Zeldin said.

Anya Schoolman, executive director of Washington, D.C.-based Solar United Neighbors, accused the EPA of illegally terminating the Solar for All program. She said ending the program “harms families struggling with rising energy costs and will cost us good local jobs.”

U.S. Sen. Bernie Sanders, a Vermont independent, joined Schoolman in alleging the EPA’s “outrageous” action is illegal. Sanders introduced the legislation that established the Solar for All program.

The senator lashed out at President Trump for axing the program in order “to protect the obscene profits of his friends in the oil and gas industry.”

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

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

expert panels

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."

Going solar is now easier thanks to city and federal help. Photo courtesy of Houston Solar Tour

Houston charges up new program to help locals buy and install affordable solar panels

sunny days

Alternative-energy-seeking locals now have a sunny way to buy into a solar. The City of Houston has launched Texas Solar Switch Houston, a new program aimed at helping Houstonians purchase and install rooftop solar panels and battery storage.

In partnership with Solar United Neighbors, the Solar Switch program offers hassle-free way to purchase solar panels by creating a massive, group discount for residents, be it home or small business needs.

This comes with the new Inflation Reduction Act’s clean energy incentives and is part of the City of Houston's Climate Action Plan goal to generate 5 million MWh per year of local solar, per a press release. Customers who install solar also receive a 30-percent tax credit, thanks to the The Inflation Reduction Act.

Registration for the program is free and available online. The City of Houston assures that there is "no obligation for homeowners to purchase solar panels." Discounts and installers are determined through a competitive auction process, per the City.

"With energy prices increasing, homeowners and small businesses are looking for opportunities to save on their energy bills and increase their resilience to climate-related events," said Mayor Sylvester Turner. "Texas Solar Switch Houston provides our community with a simple and straightforward way to become better informed about solar energy and access a competitive offer from a vetted, experienced solar installation company."

Signed and passed into law by the Biden Administration in August, the Inflation Reduction Act will invest some $369 billion in domestic energy production and manufacturing with a goal of reducing carbon emissions by 40 percent by 2030. That federal mandate means locals can now take steps towards power backup, while potentially easing up on the beleaguered Texas grid.

“More and more Houstonians are looking to solar and battery storage for self-sufficiency, which has the added benefit of making our grid more resilient,” said Hanna Mitchell, Texas program director for Solar United Neighbors, in a statement. “With the recent passage of the IRA, now is a particularly good time to go solar.”

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This article originally ran on CultureMap.

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Texas City ammonia plant acquired by Yara in $1.3 billion deal

Ammonia Acquisition

Yara North America, a subsidiary of Norwegian fertilizer and ammonia producer Yara International, has agreed to buy an ammonia production plant in Texas City for $1.3 billion.

The seller is GCA Holdings, an affiliate of Texas City-based chemical manufacturer Gulf Coast Ammonia, which is owned by private equity firms Lotus Infrastructure Partners and MB Energy.

The Texas City plant, with an eventual annual capacity of 1.3 million metric tons, is expected to start full production by the end of this year. Yara says the ammonia produced by the plant will serve its own fertilizer production system and its key customers.

During a recent call with analysts and investors, Magnus Ankarstrand, executive vice president and CFO of Yara International, said the plant holds the potential to become one of the company’s most profitable plants. The $1.3 billion purchase price, he added, “is a very attractive entry ticket to ammonia production in the U.S. at a very attractive cost.”

The Texas City plant will add to Yara’s holdings in the Lone Star State, as Yara is the majority owner of an ammonia, hydrogen and nitrogen production plant in Freeport.

Construction of the ammonia plant began in 2020, but technical and infrastructure issues delayed the project. On its website, Gulf Coast Ammonia says the plant represented a $600 million investment.

“Gulf Coast Ammonia is a world-class asset that required disciplined execution across development, financing, construction, and commercial structuring,” Philipp Pletka, managing director of Lotus Infrastructure Partners, says in a news release.

Trexlertown, Pennsylvania-based Air Products, which owns and operates the country’s largest hydrogen pipeline network, will continue to supply hydrogen and nitrogen for the plant under a long-term deal with Yara, according to the release.

However, the news comes two days after Yara International announced that it would no longer be purchasing ammonia assets in the Louisiana Clean Energy Complex (LCEC) from Air Products. In a separate release, Yara said it planned to reallocate funds toward "alternative mature U.S. ammonia investment opportunities with more competitive returns."

Houston hypersonic engine company lands $91M to accelerate production

Clean Speed

Houston-based Venus Aerospace has closed a $91 million Series B round and plans to scale the production of its hypersonic engine.

The round was led by Houston-based Mercury Fund with participation from Lockheed Martin Ventures, MESH, PEAK6, Draper Associates, Starboard Star Venture Capital, Green Sands Equity and other investors, according to a news release.

The investment comes about a year after Venus completed the first U.S. flight test of its high-thrust rotating detonation rocket engine (RDRE). The engine is expected to enable vehicles to travel four to six times the speed of sound from a conventional runway and is about 15 percent more efficient than traditional alternatives, according to the company.

Venus Aerospace says the latest round of funding will allow it to move the RDRE from demonstration to deployment and meet customer requirements for the near-term defense and space industries. The company says that the reusable RDRE is designed with a "common propulsion architecture" that can work for multiple industries and mission types.

“This financing marks an important step in moving Venus from breakthrough demonstration to scaled capability,” Sassie Duggleby, co-founder and CEO, said in the news release. “Our customers need propulsion systems that go farther, can be produced reliably and are built on supply chains they can trust. We are advancing that capability with American engineering and manufacturing talent to strengthen U.S. defense, expand space access and support the future of high-speed flight.”

Venus Aerospace raised a $20 million Series A in 2022, led by Wyoming-based Prime Movers Lab. At the time, the company said it would put the funding toward three main technologies: a next-generation rocket engine, aircraft shape and leading-edge cooling system.

The company also picked up an investment from Lockheed Martin Ventures, the investment arm of aerospace and defense contractor Lockheed Martin, in November 2025—in addition to funding from other investors over the years.

“Since our initial investment, Venus has progressed very quickly in its technology development," Chris Moran, vice president and general manager of Lockheed Martin Ventures, added in the release. "Our reinvestment in Venus recognizes Venus’ accomplishments to date and focus on speed to manufacture, cost management and reduction of supply chain constraints. Venus is working effectively to position its propulsion system for the production scale required by defense programs.”

"Venus is exactly the kind of company Houston capital should be backing," Blair Garrou, co-founder and managing partner at Mercury Fund, added in the release. "It combines multiple frontier technologies, domestic manufacturing and clear commercial and national security relevance. We believe this team is positioned to lead an important new chapter in defense and space, and we are proud to support a company building breakthrough technology here in Texas."

Venus Aerospace and Houston clean tech startup Vaulted Deep were also named to the World Economic Forum's Technology Pioneers community earlier this summer.

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This article first appeared on InnovationMap.com.

14 climatech startups join Greentown Houston in first half of 2026

green team

Climatech incubator Greentown Labs reports that 14 startups have joined its Houston community so far this year.

The companies are among 30 new startups to have joined Greentown Houston and Greentown Boston in 2026. Four of the companies are headquartered in Houston.

The startups are working on a range of "hydrogen-powered heavy-duty transport to AI-driven grid interconnection," according to Greentown.

The local startups that joined Greentown Houston include:

Houston-based Focis AI, which transforms industrial laser scans into structured asset intelligence to automatically identify, classify and map components in refineries and plants
Houston-based Iron Lattice, which develops next-generation memory technology for AI and high-performance computing that improves energy efficiency, endurance and scalability while remaining compatible with existing semiconductor manufacturing
Houston-based Orbital Arc, which is developing a new ion engine designed to improve the efficiency and scalability of spacecraft propulsion from low Earth orbit to deep space
Houston-based Sustain Energy LLC, which delivers cleaner, lower-cost fuel to industrial customers in pipeline-absent, underserved markets, cutting their energy costs and emissions with no infrastructure investment on their end

Other startups from around the world joined the Houston incubator in the same time period, including:

Ankara-based AIS Field, which develops robotic, AI-assisted non-destructive inspection systems, including submersible tank and boiler crawlers
San Francisco-based Armada AI, which builds rapidly deployable modular and edge data centers that run on local, stranded, or renewable power
San Francisco-based Armeta, which turns complex engineering drawings and legacy documentation into structured, usable data
Pittsburgh-based Atlas Robotics, which develops a Physical AI platform that powers autonomous material-handling robots and AI-guided forklifts
Ghana-based Cocoa Potash, which transforms high-emissions agricultural waste from cocoa, coconut, and palm-nut into organic potash, fertilizer and renewable energy
Israel-based Criaterra, which produces low-carbon, cement-free building materials
Italy-based ETAK, which manufactures modular reactors that convert solid waste into clean syngas
Kenya-based FelixFusion, which uses its Felix platform to model every grid connection point, including capacity, upgrade costs, and constraints
San Diego-based Gemini Energy, which builds next-generation fuel cells for data-center power
Tokyo-based Hibot, which develops robotic systems for inspecting and maintaining infrastructure in hazardous, hard-to-access environments
Austin-based Sheetak, which designs and manufactures thermoelectric coolers, generators, and assemblies for solid-state cooling and energy harvesting
The Netherlands-based ToPerform, which makes AI-powered, non-intrusive fouling sensors that monitor pipelines around the clock and predict the optimal cleaning time

Another 16 startups joined Greentown's Boston incubator. See the full list of new members here.

More than 100 startups joined Greentown last year, according to an end-of-year reflection shared by Greentown CEO Georgina Campbell Flatter. Read more about them here.

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