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.