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.

Houston Innovation Awards nominations are open through August 31. Photo courtesy of InnovationMap

Nominations close Aug. 31 for Houston Innovation Awards — submit today

Awards Season

Calling all Houston energy innovators: The Houston Innovation Awards return this fall to celebrate the best and brightest in the Houston innovation ecosystem, and that includes those leading the energy transition.

Presented by InnovationMap, the fifth annual Houston Innovation Awards will take place November 5 at TMC Helix Park.

The awards program will honor the top startups and innovators in Houston across 10 categories, and we're asking you to nominate the most deserving Houston innovators and innovative companies, including those in the energy transition sector.

This year's categories are:

  • Minority-founded Business, honoring an innovative startup founded or co-founded by BIPOC or LGBTQ+ representation.
  • Female-founded Business, honoring an innovative startup founded or co-founded by a woman.
  • Energy Transition Business, honoring an innovative startup providing a solution within renewables, climatetech, clean energy, alternative materials, circular economy, and beyond.
  • Health Tech Business, honoring an innovative startup within the health and medical technology sectors.
  • Deep Tech Business, honoring an innovative startup providing technology solutions based on substantial scientific or engineering challenges, including those in the AI, robotics, and space sectors.
  • Startup of the Year (People's Choice), honoring a startup celebrating a recent milestone or success. The winner will be selected by the community via an interactive voting experience.
  • Scaleup of the Year, honoring an innovative later-stage startup that's recently reached a significant milestone in company growth.
  • Incubator/Accelerator of the Year, honoring a local incubator or accelerator that is championing and fueling the growth of Houston startups.
  • Mentor of the Year, presented by Houston Community College, honoring an individual who dedicates their time and expertise to guide and support budding entrepreneurs.
  • Trailblazer, honoring an innovator who's made a lasting impact on the Houston innovation community.

Nominations may be made on behalf of yourself, your organization, and other leaders and institutions in the local innovation scene. The nomination period closes on August 31, so don't delay — nominate today at this link, or fill out the embedded form below.

A panel of esteemed judges will review the nominations, and determine the finalists and winners. Finalists will be unveiled on InnovationMap.com in early October, and the 2025 Houston Innovation Awards winners will be announced in November.

Tickets will go on sale this fall. Stay tuned for that announcement.

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Interested in Innovation Awards sponsorship opportunities? Please contact sales@innovationmap.com.

CenterPoint is one of 13 Houston companies on Time's list. Photo via centerpoint.com

7 Houston energy-focused businesses among Time's best midsize companies 2025

new report

Seven Houston-based businesses focused on the energy industry appear on Time magazine and Statista’s new ranking of the country’s best midsize companies.

Time and Statista ranked companies based on employee satisfaction, revenue growth, and transparency about sustainability. All 500 companies on the list have annual revenue from $100 million to $10 billion.

The Houston energy-focused companies on the list are:

  • No. 141 MRC Global. Score: 85.84
  • No. 176 National Oilwell Varco. Score: 84.50
  • No. 266 Nabor Industries. Score: 81.59
  • No. 296 Archrock. Score: 80.17
  • No. 327 Superior Energy Services. Score: 79.38
  • No. 359 CenterPoint Energy. Score: 78.02
  • No. 461 Oceaneering. Score: 73.87
In total, 13 Houston-based businesses appear, with Houston engineering firm KBR topping the Texas businesses that made the list. KBR earned the No. 30 spot, earning a score of 91.53 out of 100. It is joined by these other Houston companies:
  • No. 168 Comfort Systems USA. Score: 84.72
  • No. 175 Crown Castle. Score: 84.51
  • No. 234 Kirby. Score: 82.48
  • No. 332 Insperity. Score: 79.15
  • No. 485 Skyward Specialty Insurance. Score: 73.15

Additional Texas companies on the list include:

  • No. 95 Austin-based Natera. Score: 87.26
  • No. 199 Plano-based Tyler Technologies. Score: 86.49
  • No. 139 McKinney-based Globe Life. Score: 85.88
  • No. 140 Dallas-based Trinity Industries. Score: 85.87
  • No. 149 Southlake-based Sabre. Score: 85.58
  • No. 223 Dallas-based Brinker International. Score: 82.87
  • No. 226 Irving-based Darling Ingredients. Score: 82.86
  • No. 256 Dallas-based Copart. Score: 81.78
  • No. 276 Coppell-based Brink’s. Score: 80.90
  • No. 279 Dallas-based Topgolf. Score: 80.79
  • No. 294 Richardson-based Lennox. Score: 80.22
  • No. 308 Dallas-based Primoris Services. Score: 79.96
  • No. 322 Dallas-based Wingstop Restaurants. Score: 79.49
  • No. 335 Fort Worth-based Omnicell. Score: 78.95
  • No. 337 Plano-based Cinemark. Score: 78.91
  • No. 345 Dallas-based Dave & Buster’s. Score: 78.64
  • No. 349 Dallas-based ATI. Score: 78.44
  • No. 385 Frisco-based Addus HomeCare. Score: 76.86
  • No. 414 New Braunfels-based Rush Enterprises. Score: 75.75
  • No. 431 Dallas-based Comerica Bank. Score: 75.20
  • No. 439 Austin-based Q2 Software. Score: 74.85
  • No. 458 San Antonio-based Frost Bank. Score: 73.94
  • No. 475 Fort Worth-based FirstCash. Score: 73.39
  • No. 498 Irving-based Nexstar Broadcasting Group. Score: 72.71
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This article originally appeared on our sister site, InnovationMap.
TEX-E, a Houston-based energy transition nonprofit, has named Sandy Guitar as its executive director. Photo courtesy TEX-E.

TEX-E names Houston VC leader as new executive director

new hire

The Texas Exchange for Energy & Climate Entrepreneurship (TEX-E) has named Houston venture capital and innovation leader Sandy Guitar as its new executive director.

Guitar succeeds David Pruner, who will move into the board chair role.

Guitar previously served as general partner and managing director at Houston-based VC firm HX Venture Fund and is co-founder of Weathergage Capital. She also sits on the advisory board of Rice University's Liu Idea Lab for Innovation and Entrepreneurship (Lilie) and launched the Women Investing in VC in Houston group.

In a LinkedIn post, Guitar shared that she's looking forward to bringing her problem-solving skills to the energy transition.

"Innovating in the energy sector is as significant and intricate a problem as I have ever worked on — one that demands creativity, collaboration, and resourcefulness at every turn," she shared.

"I'm honored to join TEX-E at such a pivotal time in the energy transition," she added in a news release. "Energy and climate innovation is accelerating at the intersection of brilliant minds and bold ideas. I'm excited to help TEX-E amplify that collision between students who think differently and the real-world problems that demand fresh solutions."

According to TEX-E, Guitar will continue to lead the organization's programming that aims to connect student climate entrepreneurs with "industry reality."

"Sandy understands the complexities of the Texas energy ecosystem and brings a forward-looking vision for how related innovation can drive meaningful, lasting impact. She's exactly the leader we need to take TEX-E to the next level and help create the next generation of energy transition innovators," David Baldwin, TEX-E board member, added in the release.

TEX-E was founded in 2022 through partnerships with MIT Martin Trust Center for Entrepreneurship and Greentown Labs. It works with university students from six schools: Rice University, University of Houston, Prairie View A&M University, The University of Texas at Austin, Texas A&M University and MIT.

It's known for its student track within the Energy Venture Day and Pitch Competition at CERAWeek, which awarded $25,000 to HEXASpec, a Rice University-led team, at the 2025 event. It also hosted its inaugural TEX-E Conference, centered on the theme of Energy & Entrepreneurship: Navigating the Future of Climate Tech, earlier this year.

Meet the newest members of Greentown Labs at Transition on Tap. Photo via Greentown Labs

6 Houston energy transition events to attend in June 2025

Mark Your Calendar

Editor's note: June has arrived, and with it more must-attend events in the energy transition sector. Mark your calendar today for these conferences, symposiums, summits, expos, and more.

June 4 - Energy Capital Conference

Join 300-plus corporate leaders, financial executives, and institutional investors across the energy sector. Capital partners and energy experts will share market and sector trends, insights, and look ahead to what to expect over the next decade. This conference is now in its third decade.

This event takes place June 4 at the Post Oak Hotel. Click here to register.

June 4-5 — 2025 AWS Energy Symposium

The fourth annual AWS Energy Symposium is the premier AWS event for the energy industry. Hear from leading energy and utility customers, partners, and startups about how they're using AWS to scale innovation and transform their organizations. The event is invitation only and is geared toward senior leaders and director-level executives from across the energy value chain. Click here to submit a registration request.

June 11-12 — Energy Projects Conference & Expo

The Energy Projects Conference & Expo (EPC Show) is the largest event in North America for professionals working at the heart of major energy projects. The show will bring together five leading conferences under one roof for the first time, uniting 3,000-plus engineering, construction, commissioning, supply chain, operations, and maintenance professionals. Conference subjects span LNG exporting, hydrogen and ammonia, midstream, petrochem and refining, and sustainable aviation fuels.

This event begins June 11 at the George R Brown Convention Center. Click here to register.

June 12 - Transition on Tap

Head to Greentown Labs for this casual networking event, where some of the incubator's newest members will be introduced. Hear lightning pitches from these startups that are working on climate solutions across industries. Following the pitches, guests will network with fellow entrepreneurs, investors, leaders, and other climate champions.

This event takes place June 12 at Greentown Labs. Click here to register.

June 16-18 - Energy Drone & Robotics Summit

This three-day summit, the largest of its kind, will connect 1,500-plus leaders in the global energy/industrial robotics, drone and data sectors. Attendees will glean the latest ideas, use cases, best practices, tech, and trends from a wide variety of robotics and drone industry experts.

This event begins June 16 at Woodlands Waterway Marriott. Click here to register.

June 25-26 — Carbon Capture Technology Expo

Tackling climate change is one of the biggest global challenges that requires immediate action, and many industrial sectors are now looking to new technology to help meet net-zero emission targets. The Carbon Capture Technology Expo is North America's leading event for carbon capture, utilization, and storage. The expo offers opportunities to network with industry frontrunners and best-in-class solution providers.

This event begins June 25 at NRG Center. Click here to register. It is co-located with the Hydrogen Technology Conference & Expo North America. Expo passes are free.


The Rice Alliance Clean Energy Accelerator has named its fifth cohort. Photo via the Ion

Houston cleantech accelerator names 12 startups to 2025 cohort

early-stage accelerator

The Rice Alliance Clean Energy Accelerator has named 12 early-stage startups to its latest cohort.

The hybrid program, which operates in a hybrid capacity based out of the Ion, runs for 10 weeks and provides energy transition startups with training focused on fundraising, pilots, partnerships and sale. It begins July 8 and will be led by executive director Kerri Smith and program director Matthew Peña with support from executives-in-residence Lynn Frostman, John Jeffers, David Horsup and Dev Motiram.

The accelerator will culminate with a demo day on Sept. 18 at the Rice Alliance Energy Tech Venture Forum during the Houston Energy and Climate Startup Week.

Members of this year's cohort come from the Houston area as well as across the U.S. and Canada.

Class 5 for the Rice Alliance Clean Energy Accelerator includes:

  • Aqua-Cell Energy, which builds industrial-scale overnight batteries to provide affordable solar power
  • Arculus, a company that provides multilayer internal coating for pipelines that lowers friction, extends pipeline life and enables carbon dioxide transport and hydrogen blending
  • AtmoSpark, a Houston-based sustainable cooling and freshwater company that provides an electric field-driven air separation system that reduces dehumidification energy costs for data centers and industrial facilities
  • AtoMe, which delivers durable metallic composites to energy and aerospace companies using an eco-friendly dry blade method that eliminates harmful chemicals
  • ConceptLoop, a company that converts plastic waste into eco-friendly, low-carbon aggregate
  • Fathom Storage, which provides a more solidly embedded and steel-efficient anchoring solution for offshore service providers, wind energy developers and research institutes
  • GeoKiln, a Houston-based company that addresses issues of subsurface hydrogen extraction by applying proven oil and gas techniques to accelerate natural hydrogen reactions, enabling hydrogen production
  • Innowind Energy Solutions, a company that provides nonintrusive, active flow control devices to boost energy production and extend turbine lifespan
  • Lukera Energy, which transforms waste methane into high-value methanol using a breakthrough nanobubble technology
  • Metal Light Inc., which has developed a scalable, cost-effective Metal-Air generator to replace diesel generators
  • Moonshot Hydrogen, a company that converts food and agricultural waste into clean hydrogen and bioethanol
  • Resollant, a Woodlands-based company that delivers compact, zero-emission hydrogen and carbon reactors to refineries, petrochemical plants, steel and cement manufacturers and fuel producers

The Rice Alliance Clean Energy Accelerator has supported 55 ventures since it was founded in 2021, collectively raising over $250 million in funding, according to the university. See last year's cohort here.

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ERCOT steps up grid innovation efforts to support growing power demand

grid boost

As AI data centers gobble up more electricity, the Electric Reliability Council of Texas (ERCOT) — whose grid supplies power to 90 percent of Texas — has launched an initiative to help meet challenges presented by an increasingly strained power grid.

ERCOT, based in the Austin suburb of Taylor, said its new Grid Research, Innovation, and Transformation (GRIT) initiative will tackle research and prototyping of emerging technology and concepts to “deeply understand the implications of rapid grid and technology evolution, positioning ERCOT to lead in the future energy landscape.”

“As the ERCOT grid continues to rapidly evolve, we are seeing greater interest from industry and academia to collaborate on new tools and innovative technologies to advance the reliability needs of tomorrow’s energy systems,” ERCOT President and CEO Pablo Vegas said in a news release. “These efforts will provide an opportunity to share ideas and bring new innovations forward, as we work together to lead the evolution and expansion of the electric power grid.”

In conjunction with the GRIT initiative, ERCOT launched the Research and Innovation Partnership Engagement (RIPE) program. The program enables partners to work with ERCOT on developing technology aimed at resolving grid challenges.

To capitalize on ideas for grid improvements, the organization will host its third annual ERCOT Innovation Summit on March 31 in Round Rock. The summit “brings together thought leaders across the energy research and innovation ecosystem to explore solutions that use innovation to impact grid transformation,” ERCOT said.

“As the depth of information and industry collaboration evolves, we will continue to enhance the GRIT webpages to create a dynamic and valuable resource for the broader industry to continue fostering strong collaboration and innovation with our stakeholders,” said Venkat Tirupati, ERCOT’s vice president of DevOps and grid transformation.

ERCOT’s GRIT initiative comes at a time when the U.S. is girding for heightened demand for power, due in large part to the rise of data centers catering to the AI boom.

A study released in 2024 by the Electric Power Research Institute (EPRI) predicted electricity for data centers could represent as much as 9.1 percent of total power usage in the U.S. by 2030. According to EPRI, the share of Texas electricity consumed by data centers could climb from 4.6 percent in 2023 to almost 11 percent by 2030.

A report issued in 2024 by the federal government’s Lawrence Berkeley National Laboratory envisions an even faster increase in data-center power usage. The report projected data centers will consume as much as 12 percent of U.S. electricity by 2028, up from 4.4 percent in 2023.

In 2023, the EPRI study estimated, 80 percent of the U.S. electrical load for data centers was concentrated in two states, led by Virginia and Texas. The University of Texas at Austin’s Center for Media Engagement reported in July that Texas is home to 350 data centers, second only to Virginia.

“The U.S. electricity sector is working hard to meet the growing demands of data centers, transportation electrification, crypto-mining, and industrial onshoring, while balancing decarbonization efforts,” David Porter, EPRI’s vice president of electrification and sustainable energy strategy, said. “The data center boom requires closer collaboration between large data center owners and developers, utilities, government, and other stakeholders to ensure that we can power the needs of AI while maintaining reliable, affordable power to all customers.”

Policy adviser tapped to lead ‘nuclear renaissance’ in Texas

going nuclear

As Texas places a $350 million bet on nuclear energy, a budget and policy adviser for Gov. Greg Abbott has been tapped to head the newly created Texas Advanced Nuclear Energy Office.

Jarred Shaffer is now director of the nuclear energy office, which administers the $350 million Texas Advanced Nuclear Development Fund. The fund will distribute grants earmarked for the development of more nuclear reactors in Texas.

Abbott said Shaffer’s expertise in energy will help Texas streamline nuclear regulations and guide “direct investments to spur a flourishing and competitive nuclear power industry in the Lone Star State. Texas will lead the nuclear renaissance.”

The Texas Nuclear Alliance says growth of nuclear power in the U.S. has stalled while China and Russia have made significant gains in the nuclear sector.

“As Texas considers its energy future, the time has come to invest in nuclear power — an energy source capable of ensuring grid reliability, economic opportunity, and energy and national security,” Reed Clay, president of the alliance, said.

“Texas is entering a pivotal moment and has a unique opportunity to lead. The rise of artificial intelligence and a rebounding manufacturing base will place unprecedented demands on our electricity infrastructure,” Clay added. “Meeting this moment will require consistent, dependable power, and with our business-friendly climate, streamlined regulatory processes, and energy-savvy workforce, we are well-positioned to become the hub for next-generation nuclear development.”

Abbott’s push for increased reliance on nuclear power in Texas comes as public support for the energy source grows. A 2024 survey commissioned by the Texas Public Policy Institute found 55 percent of Texans support nuclear energy. Nationwide support for nuclear power is even higher. A 2024 survey conducted by Bisconti Research showed a record-high 77 percent of Americans support nuclear energy.

Nuclear power accounted for 7.5 percent of Texas’ electricity as of 2024, according to the Nuclear Energy Institute, but made up a little over 20 percent of the state’s clean energy. Currently, four traditional reactors produce nuclear power at two plants in Texas. The total capacity of the four nuclear reactors is nearly 5,000 megawatts.

Because large nuclear plants take years to license and build, small factory-made modular reactors will meet much of the shorter-term demand for nuclear energy. A small modular reactor has a power capacity of up to 300 megawatts. That’s about one-third of the generating power of a traditional nuclear reactor, according to the International Atomic Energy Agency.

A report from BofA Global Research predicts the global market for small nuclear reactors could reach $1 trillion by 2050. These reactors are cheaper and safer than their larger counterparts, and take less time to build and produce fewer CO2 emissions, according to the report. Another report, this one from research company Bloomberg Intelligence, says soaring demand for electricity — driven mostly by AI data centers — will fuel a $350 billion boom in nuclear spending in the U.S., boosting output from reactors by 63 percent by 2050.

Global nuclear capacity must triple in size by 2050 to keep up with energy demand tied to the rise of power-gobbling AI data centers, and to accomplish decarbonization and energy security goals, the BofA report says. Data centers could account for nine percent of U.S. electricity demand by 2035, up from about four percent today, according to BloombergNEF.

As the Energy Capital of the World, Houston stands to play a pivotal role in the evolution of small and large nuclear reactors in Texas and around the world. Here are just three of the nuclear power advancements that are happening in and around Houston:

Houston is poised to grab a big chunk of the more than 100,000 jobs and more than $50 billion in economic benefits that Jimmy Glotfelty, a former member of the Texas Public Utility Commission, predicts Texas will gain from the state’s nuclear boom. He said nuclear energy legislation signed into law this year by Abbott will provide “a leg up on every other state” in the race to capitalize on the burgeoning nuclear economy.

“Everybody in the nuclear space would like to build plants here in Texas,” Inside Climate News quoted Glotfelty as saying. “We are the low-regulatory, low-cost state. We have the supply chain. We have the labor.”

6 must-attend Houston energy transition events in October 2025

Must-Attend Meetings

Editor's note: October is here, and there are many energy events to plug into in Houston this month. From summits and forums to global conferences, there are the energy events to put on your calendar. Learn more below, and register now.

Oct. 7-8: Annual Energy Summit — Resilience in Energy Supply Chains

The ninth annual energy summit is co-hosted by Baker Botts and the Center for Energy Studies at Rice University's Baker Institute. This year's theme, “Resilience in Energy Supply Chains,” will focus on what is shaping the future of energy, and how markets, innovation, and economic growth will define the evolution of global energy supply chains.

This two-day event begins Oct. 7 at Rice University's Baker Institute for Public Policy. The event will also be livestreamed. Get tickets here.

Oct. 14: Current Trends in the Energy Industry

Join SABA and Vinson & Elkins LLP for an evening filled with insightful discussions and networking opportunities for seasoned professionals and those new to the energy industry. Learn from experts about the latest developments in the energy industry, sustainability efforts, and new policies shaping the future.

This event takes place at 6 pm at Vinson & Elkins LLP headquarters. Get tickets here.

Oct. 14-16: SAF North America

The leading event for the sustainable aviation fuel ecosystem is taking place in Houston, America’s fuel and energy hub. SAF North America brings together the SAF value chain under one roof for three days of high-level discussion. Attendees of the conference will hear from leading experts, who will provide insights on the aviation industry and discuss SAF scale-up, energy security, and pathways to decarbonize aviation in North America. There will also be dynamic exhibitions and networking opportunities.

This event begins Oct. 14 at the Marriott Marquis. Register here.

Oct. 16: Future of Global Energy Conference

The Future of Global Energy Conference, presented by Shell USA, Inc., brings together leaders from across industry, academia, and government to explore the forces shaping the future of energy. Houston is leading the way in the energy sector, leveraging its deep industry expertise, unmatched energy ecosystem, and spirit of innovation. The 2025 conference will spotlight Houston’s ongoing leadership in policy, technology development, and project execution that position the region for long-term success.

This event begins at 8:30 am at Hilton Americas. Register here.

Oct. 21-23: Energy Independence Summit

At Infocast’s inaugural Energy Independence Summit, top leaders across energy, finance, and policy will convene to evaluate where the energy market is headed next. Attendees will gain critical insights into how capital is being deployed, which technologies are emerging as the most viable under OBBBA, how domestic supply chains are affecting costs and timelines, and what regulatory levers may help stabilize the sector. The summit will feature 100 speakers, 24 sessions, networking opportunities, and more.

This event takes place Oct. 21 at the C. Baldwin, Curio Collection by Hilton. Register here.

Oct. 29: 2025 Global Energy Summit

Hosted by the World Affairs Council of Greater Houston, the Global Energy Summit examines the dynamic forces shaping today’s energy landscape. Attendees will engage with a diverse set of industry experts and global thought leaders on the future of energy security, access, and technological advancement. Opening remarks will be made by Cristina Saenz de Santa Maria, COO Maritime of DNV, followed by panel discussions featuring speakers from DNV, Accenture, Amazon Web Services, Center for Houston’s Future, Siemens, SLB, and NRG.

This event begins at 5 pm on Oct. 29 at the Omni Houston. Get tickets here.