The 22nd annual Energy Tech Venture Forum takes place September 18. Photo courtesy of Rice

Editor's note: September is here, and the calendar is full of must-attend energy transition events. Get the details on the top energy happenings in September 2025, and begin registering today. Please note: this article may be updated to include additional events.

September 3 — Houston Energy + Climate Tech Startup Week Preview Happy Hour

Head to the Ion for a networking happy hour to preview Houston Energy + Climate Startup Week 2025. Industry leaders, investors, startups, and key partners from Houston’s energy and climate innovation ecosystem will gather to share the inside scoop on the upcoming event's programming and opportunities.

This event takes place Wednesday, September 3 at 5:30 pm at the Ion. Click here to register.

September 3-4 — 11th Annual Digitalization in Oil & Gas Conference

This conference will delve deep into the intersection of digitalization and decarbonization, highlighting the transformation required for the oil and gas sector to stay relevant, resilient, and achieve business value. This year, the focus is on leveraging AI and generative AI, driving sustainability and workforce development, and achieving operational excellence through digitalization. Key objectives include building future-ready facilities, planning for a lower carbon market, and realizing business value through innovative solutions.

This event begins Wednesday, September 3 at Hilton Americas Houston. Click here to register.

September 8-10 — SPE Energy Transition Symposium

The SPE Energy Transition Symposium brings together professionals from multiple disciplines across the energy sector, offering a comprehensive platform for learning, networking, and collaboration. Its primary objective is to facilitate the exchange and dissemination of knowledge drawn from the insights of industry leaders, technical experts, academics, practitioners, representatives from the financial community, and environmental, social, and governance (ESG) leaders. This year's symposium is titled "Synergizing Innovation and Collaboration: Transforming Energy for a Sustainable Future."

This event begins Monday, September 8 at Houston Marriott Sugar Land. Click here to register.

September 12 — Workforce of the Future

UH Energy collaborates with the Society for Underwater Technology and SPRINT Robotics to host an immersive, full-day event spotlighting how AI and robotics are reshaping the energy industry. Industry leaders, innovators, and educators will converge to discuss how to empower the next generation of talent to lead the digital transformation of energy.

This event takes place Friday, September 12 at University of Houston Student Center South – Houston Room. Click here to register.

September 15-19 — Houston Energy & Climate Week

Houston Energy & Climate Week utilizes Houston's potential to propel global climate action. This gathering welcomes an unparalleled selection of global energy leaders and communities, giving participants opportunities to interact and discuss capital, technology, workforce, and policy needs. It is organized by Allies in Energy, a nonprofit dedicated to building energy and climate literacy and a pathway to the workforce of the future.

Following an invite-only dinner on Sunday, September 14, this event begins with Opening Ceremonies on Monday, September 15. Click here for details.

September 15-19 — Houston Energy + Climate Startup Week

Launched in 2024, the official Houston Energy and Climate Startup Week returns for its second year, showcasing how Houston is developing and scaling real solutions for the dual challenge of meeting growing global energy demand while reducing carbon emissions. Join leading energy and climate venture capital investors, industry leaders, and startups from around the world for this showcase of the most innovative companies and technologies that are transforming the energy industry while driving a sustainable, low-carbon energy future.

This event begins Monday, September 15 with a kickoff event at the Ion Plaza. Click here for details.

September 16 — Pilotathon 2025 & Company Showcase

EnergyTech Nexus hosts its annual Pilotathon — a high-impact event designed to fast-track pilot deployments for climate and energy tech startups. Expect a full day of curated startup pitches, a 50-plus company innovation showcase, and direct engagement with corporate partners, investors, and ecosystem leaders. The afternoon will also feature participants from the ETN CoPilot Accelerator. Startup applications and event registration is now open at www.pilotathon.com.

This event takes place Tuesday, September 16 at 8 am at GreenStreet. Click here to register.

September 18 — ACCEL Year 3 Showcase

As part of Houston Energy and Climate Startup Week, Greentown Labs will celebrate ACCEL, an accelerator program for startups led by BIPOC and other underrepresented founders. The third ACCEL cohort will present a showcase featuring their technologies, what they’ve accomplished in the first six months of the program, and where they’re headed next. Attendees will also have the opportunity to network with industry leaders who are passionate about and building an inclusive and sustainable future.

This event takes place Thursday, September 18 at 5 pm at Greentown Labs. Click here to register.

September 18 — 22nd Annual Energy Tech Venture Forum

The Rice Alliance Energy Tech Venture Forum will showcase energy tech innovations to shift towards a more sustainable, reliable and lower carbon future. This anchor event of Houston Energy + Climate Startup Week will showcase quality companies and conversations, giving attendees the chance to connect with other leaders and see where energy is headed.

This event takes place Thursday, September 18 at Rice University. Click here to register.

September 22-23 — Southwest Process Technology Conference

The 16th Southwest Process Technology Conference, with the theme “Process Technology in 2025: Solid Foundation, Dynamic Future,” will feature a diverse range of keynote presentations and technical sessions, addressing key topics in the technology and business environment of the rapidly evolving oil refining and chemical industries along the Gulf Coast.

This event begins September 22 at the University of Houston. Click here to register.

September 29-30 — Energy Tax Equity and Credit Markets

Infocast's Energy Tax Equity and Credit Markets two-day event brings together the top tax equity investors, financial advisors, platform providers, lenders, and insurers to give critical insights into how to accelerate the dealmaking process. They will provide invaluable insights on navigating the impacts of IRA changes, qualifying projects to take advantage of tax equity investments, strategies for accelerating project financing pipelines, and a deep dive into how to obtain tax credit investments via both traditional and transfer markets.

This event begins Wednesday, September 29 at the C. Baldwin. Click here to register.

Houston Energy and Climate Startup Week returns in September. Photo via GHP

10+ must-attend Houston energy transition events happening in Q3 2025

Must-Attend Meetings

Editor's note: Q3 is here, and with it, a full slate of must-attend events for Houston energy professionals. On the agenda are casual mixers, exciting showcases, week-long happenings, and more. Mark your calendars for these top Houston energy transition events coming up from July to September 2025, and begin registering today. Please note: this article may be updated to include additional events.

July 17 — TEX-E Energy, Innovation, and Entrepreneurship networking mixer

The Texas Exchange for Energy & Climate Entrepreneurship hosts this casual networking event to connect the Houston energy and climate tech ecosystem.

This event takes place Thursday, July 17 at 5 pm at Second Draught. Click here to register.

July 29 — Center for Houston's Future presents Summer Salon

This year's Summer Salon breakfast program is titled "Digital Technology and AI: Challenges and Opportunities for Driving Energy Innovation." Sponsored by bp, it will feature a timely conversation about the intersection of digital technology (including AI) and energy innovation.

This event takes place Tuesday, July 29 at 7:30 am at Junior League of Houston. Click here to register.

August 21 — Transition on Tap

Greentown Labs’ signature networking event returns in August to foster conversations and connections within Houston's climate and energy transition ecosystem. Entrepreneurs, investors, students, philanthropists, and more are invited to attend, meet colleagues, discuss solutions, and engage with the growing community.

This event takes place Thursday, August 21 at 5:30 pm at Greentown Labs. Click here to register.

August 22 – Determined to Lead Women Lunch: Investing Through Market Cycles with Ellen Wilkirson

EnergyTech Nexus hosts a monthly Determined to Lead Women’s Lunch as part of its ongoing efforts to create safe spaces for women leaders in the energy transition to connect, learn, and lead. The August session features Ellen Wilkirson, principal at Rev Innovations. With deep experience across traditional and transition energy sectors, Wilkirson will share how she’s approached investing through multiple market and commodity cycles and what it means to be a clean energy investor in today’s evolving landscape.

This event takes place Friday, August 22 at 1 pm. Click here to register.

August 27-28 — 6th Texas Energy Forum 2025

The 6th Texas Energy Forum will dive deep into the strategies, policies, and innovative solutions that reinforce energy security for the United States and its allies and fuel economic growth — centered on Texas’ pivotal role in the global energy landscape. Key discussions will address the future of regulatory reform, tariffs, and tax incentives; advancements in oil, gas, and LNG markets; the expansion of power generation; and breakthroughs in EVs and charging infrastructure. This year's topic is "Texas: The Energy Innovation Powerhouse."

This event begins Wednesday, August 27 at the Petroleum Club of Houston. Click here to register.

September 3-4 — 11th Annual Digitalization in Oil & Gas Conference

This conference will delve deep into the intersection of digitalization and decarbonization, highlighting the transformation required for the oil and gas sector to stay relevant, resilient, and achieve business value. This year, the focus is on leveraging AI and generative AI, driving sustainability and workforce development, and achieving operational excellence through digitalization. Key objectives include building future-ready facilities, planning for a lower carbon market, and realizing business value through innovative solutions.

This event begins Wednesday, September 3 at Hilton Americas Houston. Click here to register.

September 8-10 — SPE Energy Transition Symposium

The SPE Energy Transition Symposium brings together professionals from multiple disciplines across the energy sector, offering a comprehensive platform for learning, networking, and collaboration. Its primary objective is to facilitate the exchange and dissemination of knowledge drawn from the insights of industry leaders, technical experts, academics, practitioners, representatives from the financial community, and environmental, social, and governance (ESG) leaders. This year's symposium is titled "Synergizing Innovation and Collaboration: Transforming Energy for a Sustainable Future."

This event begins Monday, September 8 at Houston Marriott Sugar Land. Click here to register.

September 15-19 — Houston Energy & Climate Week

Houston Energy & Climate Week utilizes Houston's potential to propel global climate action. This gathering welcomes an unparalleled selection of global energy leaders and communities, giving participants opportunities to interact and discuss capital, technology, workforce, and policy needs. It is organized by Allies in Energy, a nonprofit dedicated to building energy and climate literacy and a pathway to the workforce of the future.

Following an invite-only dinner on Sunday, September 14, this event begins with Opening Ceremonies on Monday, September 15. Click here for details.

September 15-19 — Houston Energy + Climate Startup Week

Launched in 2024, the official Houston Energy and Climate Startup Week returns for its second year, showcasing how Houston is developing and scaling real solutions for the dual challenge of meeting growing global energy demand while reducing carbon emissions. Join leading energy and climate venture capital investors, industry leaders, and startups from around the world for this showcase of the most innovative companies and technologies that are transforming the energy industry while driving a sustainable, low-carbon energy future.

This event begins Monday, September 15 with a kickoff event at the Ion Plaza. Click here for details.

September 16 — Pilotathon 2025 & Company Showcase

EnergyTech Nexus hosts its annual Pilotathon — a high-impact event designed to fast-track pilot deployments for climate and energy tech startups. Expect a full day of curated startup pitches, a 50-plus company innovation showcase, and direct engagement with corporate partners, investors, and ecosystem leaders. The afternoon will also feature participants from the ETN CoPilot Accelerator. Startup applications and event registration is now open at www.pilotathon.com.

This event takes place Tuesday, September 16 at 8 am at GreenStreet. Click here to register.

September 18 — ACCEL Year 3 Showcase

As part of Houston Energy and Climate Startup Week, Greentown Labs will celebrate ACCEL, an accelerator program for startups led by BIPOC and other underrepresented founders. The third ACCEL cohort will present a showcase featuring their technologies, what they’ve accomplished in the first six months of the program, and where they’re headed next. Attendees will also have the opportunity to network with industry leaders who are passionate about and building an inclusive and sustainable future.

This event takes place Thursday, September 18 at 5 pm at Greentown Labs. Click here to register.

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Electric truck charging network expands to Houston-Dallas freight corridor

electric trucking

Greenlane Infrastructure, an electric public charging station developer and operator, is expanding outside of its home state of California and into Texas.

The Santa Monica-based company plans to launch its high-power charging sites along the Dallas–Houston I-45 corridor, which is one of the highest-volume commercial trucking routes in the country, according to a news release from Greenlane.

The sites will feature 6-8 pull-through lanes with chargers supporting combined charging system (CCS) and megawatt charging system (MCS) connectors that allow electric truck drivers to recharge their vehicles during standard rest periods. They will also offer tractor parking and charging, as well as operations that will allow for overnight stops.

Drivers can reserve chargers in advance, monitor charging activity in real time, and manage billing from the Greenlane Edge platform.

“Our customers are making commitments to electrify their fleets, and they need a charging network that can grow alongside them,” Patrick Macdonald-King, CEO of Greenlane, said in the release. “This is the first leg of the Texas triangle, one of the more important freight arteries in the country, so bringing high-power charging there is the next logical step in building a network that serves how freight moves across America.”

Greenlane is also expanding across the West Coast, with five locations under development in California and Nevada. It opened its flagship Greenlane Center in Colton, California, in April 2025. The company plans to open locations in Blythe, California, and Port of Long Beach this year.

Greelane was founded in 2023 as a joint venture between Daimler Truck North America, NextEra Energy Resources and BlackRock. It has secured partnerships with electric long-haul truck developer Windrose Technology, Velocity Truck Centers and Volvo Trucks North America.

Houston startup lands $1B from Blackstone and Halliburton, plans acquisition

power deal

Houston-based power generation startup VoltaGrid has nailed down a $1 billion equity investment from asset management heavyweight Blackstone and Houston-based oilfield services provider Halliburton.

The investment comes in two forms:

  • A $775 million primary capital raise
  • A $225 million secondary capital purchase from existing investors

VoltaGrid, founded in 2020, provides behind-the-meter mobile power generation equipment for data centers, microgrids and industrial customers.

Aside from the $1 billion investment, VoltaGrid has agreed to buy Propell Energy Technology, a VoltaGrid supplier, for an undisclosed amount. Propell offers a natural gas power generation platform for AI data centers. VoltaGrid plans to add two manufacturing plants at Propell’s facilities in Granbury, a Dallas-Fort Worth suburb.

The investment and acquisition deals are expected to close in mid-2026.

Funds managed by Blackstone Tactical Opportunities are contributing to the $1 billion investment. William Nicholson, managing director of Blackstone, called VoltaGrid “a highly differentiated platform addressing one of the most important infrastructure needs of the AI era: reliable, rapidly deployable power. This investment is a strong example of Tac Opps’ focus on providing flexible, scaled capital to exceptional entrepreneurs and businesses operating in Blackstone’s highest-conviction investment themes.”

Nathan Ough, founder and CEO of VoltaGrid, said in a release that the Blackstone investment “is a powerful endorsement of the platform we have built and the role VoltaGrid is playing in delivering the energy infrastructure of the AI era.”

Last October, VoltaGrid and Halliburton said they had forged a partnership to supply power for data centers around the world, with the Middle East picked as the initial target. Two months later, the companies said they had arranged the manufacturing of 400 megawatts of natural gas power systems that’ll be delivered in 2028 to support new data centers in the Eastern Hemisphere.

Jeff Miller, president and CEO of Halliburton, said his company’s investment in VoltaGrid “reflects our shared focus on long-term solutions for the world’s most demanding power environments, and advances VoltaGrid’s ability to deliver reliable, distributed power at scale.”