Houston, Home to the Most Complete Energy Value Chain in the World 

Houston isn’t just talking about energy transition — it’s building it. It’s a city where innovative people and organizations from across sectors come together to take the energy industry to the next level through collaboration, access to world-class facilities, exceptional talent, and relentless ambition.

What sets Houston apart is its complete energy value chain. From incubators and accelerators to corporate innovation labs, Houston offers startups something unique: direct access to the energy infrastructure they’re trying to transform. Every piece of the startup energy puzzle exists here. The infrastructure, expertise, and capital that already power the world are now being leveraged to build the future of the energy transition. 

The depth of Houston’s energy ecosystem becomes clear when you hear from leaders across this ecosystem: 

Jeremy Pitts(Activate)Jane Stricker (Houston Energy Transition Initiative / Greater Houston Partnership), Sandy Guitar (TEX-E), Brad Burke (Rice Alliance / Ion District ), Taylor Chapman (New Climate Ventures), Eric Rubenstein (New Climate Ventures), Lawson Gow (Greentown Labs), Andres Cabada (Halliburton Labs), and Chuck Yates (Collide). Together, they represent the diversity of thought that fuels the most impactful climate innovation activity across the city.

Champion Spotlight: Q&A with Georgina Campbell Flatter 

Houston Energy and Climate Startup Week is nearly here, and this year’s champions include leaders who are shaping the future of climate technology. Among them is Georgina “Georgie” Campbell Flatter, CEO of Greentown Labs, who steers the world’s largest climate tech incubator as it fuels the next generation of companies racing to solve our biggest environmental challenges. 

Georgie stepped into the role in February 2025. Since then, she’s been driving climate innovation forward and championing the next wave of energy startups. Her expertise spans the evolving landscape of climate tech, from emerging technologies to market dynamics. 

In our conversation, Georgie dives into Houston’s rising influence in the energy transition – sharing what she’s seeing across today’s climate startup ecosystem and where the biggest opportunities lie. 

I’ve built my career around one big idea: making technology matter. You can’t spend a decade at MIT—surrounded by game-changing ideas, learning from rockstars such as Bob Langer, Fiona Murray, and Bill Aulet—without innovation becoming part of your DNA. That experience taught me that while innovation is essential, it’s the intentional innovation infrastructure—incubators, testbeds, incentives, role models and bridges between communities (public, private, NGO, and academia)—that turns ideas into real-world impact. 

My ties to Greentown stretch back to the very beginning. The founders are such wonderful people—I know them well—and I’ve also personally experienced the generosity, mentorship, and collaborative spirit of this community. Entrepreneurship is hard, and community matters. Stepping into this role feels like both a privilege and a way to give back. 

The next decade belongs to entrepreneurs. Their grit, creativity, and bold ideas will power the innovations, jobs, and partnerships driving the energy transition. As one of our Houston founders put it: “Hard is fun—but it’s easier when the infrastructure and community are built for you to win.” That’s why Greentown exists—to remove friction so startups can move faster and smarter. 

And where better to do that than in our two home cities—Houston, the energy capital of the world, and Boston, the innovation capital of the world. Together, they unite industry depth with innovation speed—and I’m incredibly lucky to lead an organization that’s such a critical part of both cities and of the global climate and energy ecosystem.

Founders consistently highlight four priorities: product development, customers, capital, and talent—and in energy and climatetech, each comes with extra hurdles. 

On product development: Building hardtech requires more than a desk and a laptop—you need equipment to build, space to make, the right ventilation and safety systems, and access to permits. Even rent negotiations can slow a founder down. Greentown’s role is to speed all of that up. 

On customers and partnerships: In Houston especially, the city is full of experienced customers—willing not only to buy but to put in the work alongside startups to help shape products for commercial readiness and scale. Those relationships are gold. 

On capital: VC is essential, but not sufficient. The energy transition demands a capital stack that matches reality—longer timelines, larger infrastructure, and complex regulatory environments. The best founders blend VC with grants, philanthropic funding, corporate pilots, and project finance. 

On talent: Finding and keeping the right team is mission-critical—these entrepreneurs are creating the jobs of the future. Greentown is also a training ground for the future energy and climate workforce, where innovation, grit, and growth mindsets are built. 

Greentown exists to help founders navigate all of this—removing roadblocks, connecting them to the right capital, customers, and talent so they can get their solutions into the world faster. 

Houston is already the energy capital of the world—and it’s primed to become the energy transition capital of the world. 

The city’s legacy players bring extraordinary resources: technical expertise, industrial infrastructure, global networks, and capital. As one founder said, “Steel flows like water in Houston.” Another told me, “If you’re building real, hard-charging hardware, Houston is the best deep-tech city in the country.” 

Greentown’s role is to connect those assets to entrepreneurs with the solutions—driving pilots, investments, and customer partnerships that get technologies scaled. 

Houston’s superpower is industrial readiness at scale. It’s a place where you can find machine shops, pilot plant expertise, and deep technical talent in chemical engineering. For example, Texas has one of the highest concentrations of chemical engineer jobs in the U.S. As one founder put it: “The one thing missing in many ecosystems is flexible infrastructure to build—everyone’s figuring it out alone. Here, we have it. Now we just need to keep refining it so the best startups can plug in and thrive.”

Lead with your full story—technology, purpose, and the positive impact you’ll have on people and communities. Don’t underestimate the value of clearly showing how your innovation will deliver for people, planet, and profit. 

Diversity drives innovation. ACCEL, now in its third year, is proof of that. This year, eight startups—each with six months in the program—will showcase their work. The showcase convenes the ecosystem—investors, corporates, and ecosystem leaders—who can open doors and accelerate their growth. ACCEL is proof that representation strengthens the entire ecosystem. 

Houston is a special city for innovators—it blends deep industrial expertise with a collaborative, community-driven spirit. And it’s building an identity around energy and climate innovation. Startup Week is a chance to spotlight that leadership and forge the connections that will take solutions from idea to scale. 

This innovation ecosystem is delivering more energy with fewer emissions, unlocking economic opportunity and job growth, and fostering the collaborations that propel climatetech from the lab into communities—fast and at scale. This week is here to turbocharge that momentum—because we can go further, faster, together. And at Greentown, everyone’s welcome.  


Check out the ACCEL Year 3 Showcase from Greentown Labs during Houston Energy + Climate Startup Week.  

New Ecosystem Leaders Join 2025 Houston Energy and Climate Startup Week

HOUSTON (August 11, 2025) – Houston Energy and Climate Startup Week returns September 15–19, 2025, bringing together top climate and energy investors, industry leaders, and startups from around the world. As funding becomes increasingly critical to scaling climate solutions, this year’s event expands with new partners to help innovators connect with the capital and collaborators needed to drive impact.

Launched in 2024 through a collaboration between Halliburton Labs, Rice Alliance for Technology and Entrepreneurship, Houston Energy Transition Initiative (HETI), Ion, Greentown Labs, Activate, and Collide, the inaugural event drew over 2,000 attendees, 125 startups, and more than 100 speakers across 30+ events to discuss energy innovation and climate solutions.

“The organizations and events hosted at the Houston Energy and Climate Startup Week showcase the city as a national hub for the energy future,” said Brad Burke, Associate VP for Industry and New Ventures at Rice University and Executive Director of the Rice Alliance, a founding partner for the week. “As a cornerstone week for global energy investors, startups and technology leaders, we encourage organizations to add to the week! Whether you’re exploring breakthrough tech, meeting investors, or simply eager to connect with others driving change, this week offers something for every innovator.”

With a strong mix of regional leadership and national participation, the week serves as a powerful platform to spotlight Houston’s leadership in energy innovation. Houston’s thriving energy and climate innovation ecosystem continues to be demonstrated thanks to the collaborative efforts of our community partners and our many corporate supporters. The list of partners continues to grow, including: New Climate Ventures, Decarbonization Partners, University of Houston, Energy Tech Nexus, TEX-E, Chevron and Avatar Innovations.

 “Last year’s events exceeded our expectations, and 2025 is looking even stronger. As early-stage climate tech investors, we’re thrilled to be part of it.  As Bill Gates noted last year, Houston is poised to be the “Silicon Valley of energy,” and this week showcases that leadership. It brings together world-class founders, co-investors, and industry partners who have the engineering prowess, balance sheets, and capital-projects expertise to scale these solutions. As Gates said, “If you want to see what the cutting edge of next-gen clean energy innovation looks like, it’d be hard to find a place better than Texas.” Taylor Chapman, New Climate Ventures, Investment Principal.

This year builds on that momentum, with a robust schedule of panels, pitch sessions, and networking events taking place citywide, including several events hosted in the Ion District, Houston’s innovation hub, powered by Rice University. Energy ventures will present breakthrough technologies driving a low-carbon energy future with opportunities to engage top venture capital, private equity, and strategic corporate investors. 

“What sets Houston apart is our ability not just to pilot ideas—but to fund, scale, and commercialize them,” said Jane Stricker, Executive Director of the Houston Energy Transition Initiative and Senior Vice President of the Greater Houston Partnership. “As the energy capital of the world, Houston is uniquely equipped to bring together the capital, talent, and infrastructure needed to grow the next generation of climate and energy solutions.  Houston Energy and Climate Startup Week showcases the region’s bold innovation and growing momentum in solving the dual challenge of delivering more energy with less emissions.”

For the full schedule and to stay updated on Houston Energy and Climate Startup Week, visit https://houstonenergyclimatestartupweek.com/.

About Houston Energy and Climate Startup Week
Houston Energy and Climate Startup Week is a collaborative, city-wide initiative dedicated to advancing solutions for the energy transition. Launched by Rice Alliance for Technology and Entrepreneurship, Halliburton Labs, Greentown Labs, Houston Energy Transition Initiative (HETI), Collide and Activate, the annual activation brings together startups, investors, and industry leaders to showcase innovation and drive meaningful impact. Events are hosted by many organizations across the city.

MEDIA CONTACT:

Lou Ann Duvall

Vice President, Marketing and Communications

Greater Houston Partnership

lduvall@houston.org

Applications for Halliburton Labs Now Open + Call for Energy Ventures for the Rice Alliance Energy Tech Venture Forum!

Houston Energy and Climate Startup Week is ramping up with exciting opportunities for energy and climate innovators. Two major events tied to this year’s Houston Energy and Climate Startup Week are closing their applications soon. 

Halliburton Labs is now accepting applications for its next cohort! This is an opportunity for startups working to advance cleaner, affordable energy. Selected companies will gain access to Halliburton Labs’ facilities, expertise and global network. Pitch day for the upcoming cohort will take place during Houston Energy and Climate Startup Week. Don’t miss your chance to be part of it—apply by July 25. Apply here »

Meanwhile, the call for energy ventures is also open for the 22nd Annual Rice Alliance Energy Tech Venture Forum—an anchor event for the Houston Energy and Climate Startup Week and one of the premier energy VC conferences in the region. This event connects ventures with investors and industry leaders through one-on-one meetings and pitch opportunities. Applications close July 18. Apply here »

Stay tuned for more updates as we continue building momentum for Houston Energy and Climate Startup Week!

Houston Energy and Climate Startup Week Announces 2025 Dates

The second annual conference returns September 15-19, 2025, to accelerate the development and scaling of real solutions for the dual challenge.

(Houston, Texas) Building on the success of its inaugural year, Houston Energy and Climate Startup Week will return September 15-19, 2025, bringing together thousands of startups, investors, and industry leaders from around the world.

“Houston Energy and Climate Startup Week was created to answer a fundamental question: Can we achieve more by working together than we can alone?” said Jane Stricker, Senior Vice President, Greater Houston Partnership and Executive Director, Houston Energy Transition Initiative. “By joining forces, we’re strengthening Houston’s role as a global leader in energy innovation, uniting top talent to turn bold ideas into real solutions. In 2024, we set out to build something with lasting impact—rooted in the ingenuity of Houston’s technologists and founders. Thanks to a collaborative effort across industry, academia, and startups, we’ve only just begun to showcase Houston’s strengths and invite others to be part of this movement. We can’t wait to see the city rise to the occasion again in 2025.”

Founded by Rice Alliance for Technology and Entrepreneurship, Halliburton Labs, Greentown Labs, Houston Energy Transition Initiative (HETI), Digital Wildcatters and Activate, this city-wide initiative was launched to showcase Houston is developing and scaling real solutions for the dual challenge—meeting growing global energy demand while reducing carbon emissions. The event’s inaugural year in 2024 demonstrated the power of this collaboration, drawing more than 2,000 attendees across 30+ events, featuring 100+ speakers and 125+ startups.

Anchor Events for 2025 Include:

  • Monday, September 15
    • Official Kickoff Event at the Ion, hosted by HETI
  • Tuesday, September 16
    • Activate Meet the Cohort
  • Wednesday, September 17
    • Rice Alliance Energy Tech Venture Forum (Invite-only Startup/Investor Office Hours)
  • Thursday, September 18
    • Rice Alliance Energy Tech Venture Forum at Rice University
    • Greentown Labs ACCEL Showcase
  • Friday, September 19
    • Halliburton Labs Pitch Day at the Ion

In addition to these marquee events, returning programming from New Climate Ventures, Digital Wildcatters, and Global Corporate Venturing are already confirmed. New partners, including Decarbonization Partners and Avatar Innovations, are also joining the lineup. With the date announced, the founding partners invite 2024 hosts and others, to begin planning their events and programs. Calendar submissions will be opened in May.

Programming will take place across Houston, with the Ion District, powered by Rice University, serving as a key hub.

For more information and to get involved, visit houstonenergyclimatestartupweek.com

About Houston Energy and Climate Startup Week
Houston Energy and Climate Startup Week is a collaborative, city-wide initiative dedicated to advancing solutions for the energy transition. Launched by Rice Alliance for Technology and Entrepreneurship, Halliburton Labs, Greentown Labs, Houston Energy Transition Initiative (HETI), Digital Wildcatters and Activate, the annual activation brings together startups, investors, and industry leaders to showcase innovation and drive meaningful impact. Events are hosted by many organizations across the city.

Celebrating 25 Years of Innovation: Repsol Kickstarts Houston Energy + Climate Startup Week with Top Startups and Industry Leaders

Houston hosted the inaugural Energy + Climate Startup Week in September, which brought together leading energy and climate venture capital investors, industry leaders and startups from around the world to showcase the most innovative companies and technologies that are transforming the energy industry while driving a sustainable, low-carbon energy future.

Repsol was one of the inaugural sponsors for the weeks kick off event that hosted several leading startups. This year marked 25 years of energy innovation for Repsol in the United States.  As the energy landscape evolves, Repsol has committed to significant growth in renewable capacity, with an impressive 720 MW of solar and storage capacity already operational and 1.5 GW under construction.

Caton Fenz, CEO for Repsol’s Renewables North America shares more about Repsol’s approach to expanding its renewable footprint, integrating green energy into its core business and leveraging Houston’s unique role as a leader in the energy transition. Here’s an inside look at Repsol’s milestones and future goals in the journey toward decarbonization and a sustainable energy future.

Can you tell us more about Repsol’s strategy for expanding its renewables business?

This year Repsol is celebrating 25 years of energy development in the United States. Across the US, we have a team of more than 800 employees, with more than 130 employees working in the renewables business specifically. 

Repsol’s growth ambition in the US renewable energy market is significant. Since launching our renewables activity in the US three years ago, we have installed more than 720 MW of solar generation and energy storage capacity. Today we have more than 1.5 GW of additional solar and energy storage capacity under construction, and more than 20 GW of solar, wind and energy storage in development across 13 states.

 How does Repsol plan to integrate renewable energy sources into its broader business model?

Repsol Renewables operates in accordance with Repsol’s values and strategies. Renewable energy generation is one of the pillars of Repsol’s decarbonization strategy. Repsol will invest between €3 and 4 billion to organically develop its global project portfolio and aims to reach between 9,000 MW and 10,000 MW of installed capacity by 2027. Of this, 30% will be in the United States.

With these objectives in mind, we have been able to accelerate the development of wind, solar, and energy storage across the US market and the globe. By expanding our renewable energy business, we can further meet record demand growth for renewable energy.  

What are the key projects or milestones that have been achieved within Repsol’s renewables portfolio so far?

Earlier this year, we announced the commercial operation of Frye Solar, our largest solar project worldwide. This project, located in Swisher County, Texas, has a total capacity of 637 MW.  And as noted above, we have an additional 1.4 GW of projects under construction currently.  These major energy infrastructure projects are indicative of the scale of our operations in the US.

Why does Repsol believe being located in Houston is critical for its business, particularly in the energy transition?

Repsol is proudly committed to Houston’s role in developing and delivering energy and value for the world. Houston is known as the Energy Capital of the World and over the next 10 years, we’ll see it be known as the Energy Transition Capital of the World. With Repsol’s Renewables North America business located in downtown Houston, we have access to talent and partnerships in a booming city filled with energy experts. 

Why does Repsol see value in participating in Houston Energy + Climate Startup Week?

At Houston Energy + Climate Startup Week, Repsol Renewables is honored to support and learn from leaders and investors in the energy and climate industry. We believe it is important to continuously invest in talent, ideas, and collaboration across the energy value chain as we pursue our net zero by 2050 goal.

A Global Hub for Energy Innovation: Highlights from the Inaugural Houston Energy and Climate Startup Week 2024

Houston has become the hub for startups and companies looking to scale innovative technologies that are transforming the energy industry and advancing a sustainable, low-carbon future. This month, the inaugural Houston Energy and Climate Startup Week 2024 successfully highlighted this mission.

Rice Alliance for Technology and Entrepreneurship, Halliburton Labs, Greentown Labs, Digital Wildcatters launched the inaugural startup week in collaboration with the Partnership’s Houston Energy Transition Initiative. The week brought together leading energy and climate venture capital investors, industry leaders, and startups from around the world.

Over 30 events took place from September 9-13, featuring more than 100 speakers and 125 startups. Attendance numbers came in at over 1,400 people across the week’s anchor events, and additional events were individually organized by organizations and startups in Houston’s ecosystem.

“By hosting the Houston Energy & Climate Startup Week, we’re not just showcasing our city’s strengths – we’re actively shaping its future. This event is a critical catalyst for fostering collaboration, investment and talent development within the burgeoning energy and climate tech ecosystem. This week is about demonstrating our commitment to that future and inspiring the next generation of energy innovators,” said Janice Tran, Kanin Energy CEO & Co-Founder

The Kickoff event, sponsored by Repsol, Microsoft and BBVA, hosted fireside chats by several of Houston’s leading startups, including Solugen, Cemvita, Kanin Energy and Syzygy.

“Houston is at the forefront of not just energy innovation, but industrial innovation more broadly. With the momentum that’s built over the last few years, it’s the perfect time to showcase our progress and drive further advancements in climate solutions.” – Gaurab Chakrabarti, Solugen CEO and Co-Founder

Houston is home to more than 65 incubators and accelerators and over 260 cleantech and climate tech startups. The region continues to build momentum and is focused on attracting investment for this growing sector, seeing a 577 percent growth since 2019. According to Partnership data, there has been over $1.95 Billion and 175 deals with cleantech and climate tech startups.

“Houston is uniquely positioned to tackle the greatest challenge of our time – producing more energy with fewer emissions. This city is where energy innovation scales and opportunity thrives. As a natural hub for startups and investors, Houston brought this to life during Houston Energy and Climate Startup Week. Years in the making, this event was launched to answer the question: Can the whole be greater than the sum of its parts? This past week proved it can. We look forward to continue building on this successful week.” said  Jane Stricker,  Senior Vice President, Greater Houston Partnership and Executive Director, Houston Energy Transition Initiative.

Learn more about Houston Energy + Climate Startup Week.

Here’s What You Need to Know to Get Ready for Houston Energy & Climate Startup Week

Houston Energy & Climate Startup Week is happening this week, September 9-13! With over 80 speakers featured across 25+ events around Houston, we’re looking forward to seeing you during this celebratory week!


All events during Houston Energy & Climate Startup Week are individually organized. Help the event hosts by finishing your schedule for the week and registering for each event you plan to attend. You can check them out on the schedule (some may already be at capacity). 

Is your schedule set for Houston

If there’s an event you’re interested in that requires approval from the event organizer, please check with the event host to confirm any last-minute registration. They can help answer any logistics details. 

If you’re attending an event, make sure to tag us on

Instagram and LinkedIn.

See the full schedule and RSVP → https://houstonenergyclimatestartupweek.com/calendar/ 

Thank you to all of the event organizers and partners who are hosting an event during Houston Energy & Climate Week! Without you, it wouldn’t be possible!

Need a place to eat? Since many events are hosted in Ion District, make sure to check out the robust selection of food and drink options. Parking is available in the Red Lot (complimentary from 7am-10pm for Houston Energy and Climate Startup Week), and in the Ion District garage (complimentary for the first 2 hours). 


We’re looking forward to an energizing week ahead. See you soon!

Halliburton Labs Announces Finalists Pitch Day Panel

Halliburton Labs announced the Finalists Pitch Day panelists. 

The Houston Energy + Climate Startup Week is looking forward to their experience and insights across technologies and energy systems to inform Q&A following each finalist presenter’s pitch.

Meet the judges panel:
Jeff Miller, Chairman of the Board of Directors, President and CEO, Halliburton Labs
John Grotzinger, Professor of Geological Science and Division Chair, Caltech
Barbara Burger, Corporate Graduate, Energy Director and Advisor
Paul Sheng, Co-Founder and Managing Partner, Fathom Fund
Evelyn Wang, Director, ARPA-E
Dale Winger, Managing Director, Halliburton Labs

Register for Pitch Day: https://halliburtonlabs.com/pitch-day/

Startups innovating the clean energy transition will showcase their technology at Sept. 12 Energy Tech Venture Forum

Anchor event for inaugural Houston Energy and Climate Startup Week that includes events at the Ion powered by Rice University

(Franklin, 2024) – The Energy Tech Venture Forum (ETVF), hosted by the Rice Alliance for Technology and Entrepreneurship, will convene innovators and investors at a Sept. 12 conference to connect ventures with Houston’s energy ecosystem. The forum is an anchor event for the inaugural Houston Energy and Climate Startup Week, happening Sept. 9-13. This week is a citywide initiative to bring together and celebrate the momentum in Houston driving the energy transition. Many events are hosted at the Ion, Houston’s innovation hub powered by Rice University.

A total of 90 companies, including the latest cohort from the Rice Alliance Clean Energy Accelerator, will meet with and pitch to hundreds of corporate venture capitalists (VCs) and investors – Rice Alliance facilitates more than 700 meetings between investors and startups every year at this event. The participating companies have collected raised more than $1.09B in funding and are from 7 countries. David Baldwin, partner at Houston-based SCF Partners and co-founder of OpenMinds, and Rachel Slaybaugh, partner at DCVC, a multi-billion dollar VC firm based in the Bay area, will give the opening and closing keynotes, respectively.

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The Ion and the Houston Energy Transition Initiative will also host a Sept. 9 kickoff and block party for Houston Energy and Climate Startup Week. The inaugural Activate Houston Fellows, which includes several Rice-affiliated startups, will host a welcome for the 11 inaugural fellows Sept. 10 at the Ion. Rice President Reginald DesRoches will host a fireside chat with author Walter Isaacson at the Halliburton Labs’ Pitch Day Sept. 13 at the Ion. Numerous other events organized by Houston organizations will be hosted at the Ion throughout the week.

Class 4 of Rice Alliance’s Clean Energy Accelerator will culminate in Demo Day Pitches featured during ETVF which includes 12 ventures that are driving innovation in advanced materials, carbon management, carbon accounting, digital technologies, hydrogen, solar, energy efficiency, energy storage and corrosion detection. The accelerator supports the success of emerging, tech-enabled ventures that are advancing decarbonization solutions and efficiency strategies to accelerate the transition to a clean energy economy.

Houston Energy and Climate Startup Week is a community-led effort to showcase Houston’s leadership in the energy transition and is bringing together startups, investors and corporations from around the world.   It is organized by a group of regional organizations, academic institutions and corporations in the Houston ecosystem, including Rice Alliance, Halliburton Labs, Greentown Labs, Activate, Digital Wildcatters and the Houston Energy Transition Initiative. Individual investors, startups and organizations are independently hosting events around the city during the week.

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