For the first time, Texas's ERCOT grid will be connected to other states' grids thanks to funding from the Department of Energy. Photo via Getty Images

Thanks to recently announced funding, the power grid for the territory served by the Electric Reliability Council of Texas (ERCOT) will be connected to grids in other states.

Officials hope building a 320-mile transmission line that connects the ERCOT electric grid to electric grids in the Southeast will prevent power outages like the massive blackout that occurred in 2022 when a winter storm blasted Texas.

San Francisco-based Pattern Energy says its Southern Spirit project will cost more than $2.6 billion. Full-scale construction is supposed to get underway in 2028, and the project is set to go online in 2031.

The U.S. Department of Energy recently approved up to $360 million for the transmission project. The transmission line will stretch from Texas’ border with Louisiana to Mississippi. It’ll supply about 3,000 megawatts of electricity in either direction. That’s enough power for about 750,000 residential customers during ERCOT’s peak hours.

ERCOT’s more than 54,100 miles of transmission lines supply power to about 90 percent of Texans.

“The U.S. transmission network is the backbone of our nation’s electricity system. Though our grid has served U.S. energy needs for more than a century, our country’s needs are changing,” David Turk, under secretary at the Department of Energy, says in a news release.

“DOE’s approach to deploying near-term solutions and developing long-term planning tools will ensure our electric grid is more interconnected and resilient than ever before,” Turk adds, “while also supporting greater electricity demand.”

The other three projects that recently received funding from the DOE include:

  • Aroostook Renewable Project, which will construct a new substation in Haynesville, Maine, and a 111-mile transmission line connecting to a substation in Pittsfield, Maine.
  • Cimarron Link, a 400-mile HVDC transmission line from Texas County, Oklahoma to Tulsa, Oklahoma
  • Southline, which will construct a 108-mile transmission line between Hidalgo County, New Mexico, and Las Cruces, New Mexico. The DOE previously supported a 175-mile line from Hidalgo County, New Mexico, to Pima County, Arizona, in Southline Phase 1 on the first round of the Transmission Facilitation Program.

This month's funding completes the $2.5 billion in awards from the Transmission Facilitation Program which is administered through the Building a Better Grid Initiative that launched in January 2022. Its mission has been to develop nationally significant transmission lines, increase resilience by connecting regions of the country and improve access to clean energy sources, according to the DOE.

Earlier this year, ERCOT, which manages 90 percent of Texas’ power supply, forecasted a major spike in demand for electricity over the next five to seven years

The Meta and Sage Geosystems project is reportedly the first next-generation geothermal project located to the east of the Rocky Mountains. Rendering by Sage Geosystems and Meta

Meta taps Houston geothermal co. to power data center growth with clean energy

big tech

A Houston company has signed a new agreement with Meta Platforms Inc. — Facebook's parent company — to power the tech giant's data center growth.

Houston-based Sage Geosystems agreed to deliver up to 150 megawatts of new geothermal baseload power to Meta. The companies made the announcement this week at the United States Department Energy’s Catalyzing Next Generation Geothermal Development Workshop.

The deal is significant because it's the first next-generation geothermal project located to the east of the Rocky Mountains, the companies report in a news release.

“This announcement is the perfect example of how the public and private sector can work together to make the clean energy transition a reality,” Cindy Taff, CEO of Sage Geosystems, says in the release. “We are thrilled to be at the forefront of the next generation of geothermal technology and applaud the DOE for supporting the commercialization of innovation solutions.

"As energy demand continues to grow, the need for reliable, resilient and sustainable power is paramount and our partnership with Meta underscores the critical need for innovative and sustainable energy solutions like ours,” she continues.

The project's first phase will aim to be operating in 2027. The plans reflect how geothermal is being recognized as a growing carbon-free energy source in the country, and how Meta is committed to clean energy initiatives.

“The U.S. has seen unprecedented growth in demand for energy as our economy grows, the manufacturing sector booms thanks to the Biden-Harris Administration’s Investing in America agenda, and new industries like AI expand,” U.S. Energy Deputy Secretary David Turk says. “The Administration views this increased demand as a huge opportunity to add more clean, firm power to the grid and geothermal energy is a game-changer as we work to grow our clean power supply.”

Sage's technology — called Geopressured Geothermal System — works deep in the earth to develop energy storage and geothermal baseload power.

“Meta thanks the Department of Energy’s leadership on promoting and supporting the exploration of new energy sources like geothermal," Urvi Parekh, head of renewable energy at Meta, says. "That leadership supports Meta’s goal to enable the addition of reliable, affordable, and carbon-free power to the grid with this geothermal energy deal. We are excited to partner with such an innovative company like Sage Geosystems that is a proven leader in geothermal development on this project and beyond.”

Sage recently teamed up with a utility provider for an energy storage facility in the San Antonio metro area to build its three-megawatt EarthStore facility.

The company is also working on an exploratory geothermal project for the Army’s Fort Bliss post in Texas, which is the third U.S. Department of Defense geothermal initiative in the Lone Star State.

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6 must-attend Houston energy sector events in November 2025

Must-Attend Meetings

Editor's note: It's time to mark your calendar for November's must-attend Houston energy transition events, as they are front-loaded at the beginning fo the month. From a climatetech summit to the annual Houston Innovation Awards, these are the energy events to attend. Learn more below, and register now.

Nov. 4: Greentown Labs Climatetech Summit

Greentown Labs hosts its Houston Climatetech Summit, bringing together philanthropists, executives, and innovators in the energy transition space. Attendees will be able to explore climatetech solutions from dozens of startups, as well as hear insightful keynotes and discussions with industry leaders throughout the day.

The event begins with check-in and breakfast at 8 am on Nov. 4 at Greentown Labs. Register here.

Nov. 4-6: Operational Excellence in Oil and Gas Summit 2025

More than 300 industry leaders and change-makers will explore smarter, faster, more sustainable paths to operational excellence in the oil and gas industry at this annual three-day summit.

The event begins Nov. 4 at Norris Conference Center - City Centre Location. Register here.

Nov. 11-12: 20th Annual API Cybersecurity Conference for the Oil and Natural Gas Industry

The API Cybersecurity Conference has been an annual event since 2005. For 20 years, it has been the only cybersecurity conference dedicated to the oil and gas industry. Don't miss two days of compelling programming, networking and idea-exchange opportunities, as well as exhibitors sharing the latest products and services.

The event begins Nov. 11 at Woodlands Waterway Marriott. Register here.

Nov. 12-13: Energy Supply Chain & Procurement Summit

Senior executives from across the U.S. come to Houston, the energy capital, to discuss the energy supply chain, procurement and logistics ecosystems. The summit is focused on fostering dialogue and facilitating commercial relationships to further the mission of decarbonization and digitalization of the energy sector.

The event begins Nov. 12 at Hyatt Regency Houston West. Register here.

Nov. 13: Houston Innovation Awards

Houston's innovation ecosystem comes together for the fifth annual Houston Innovation Awards, taking place for the first time at Greentown Labs. Get your tickets to this intimate networking event and awards program, where winners in 10 prestigious categories — including Energy Transition Business, Scaleup of the Year, and Startup of the Year — will be revealed.

The event begins at 7 pm on Nov. 13 at Greentown Labs. Tickets are available here.

Nov. 14: Powering the Future via Geothermal, Lithium Extraction, and Battery Storage

Innovators and energy experts will converge for an in-depth panel discussion on how geothermal energy, lithium extraction and battery storage are shaping the next era of the low-carbon economy. At this event, hosted by Society for Low Carbon technologies, attendees will engage with thought leaders across sectors and explore how these technologies will help power a cleaner and smarter energy future.

This event begins at 9:10 am on Nov. 14 at NOV Towers. Register here.

Houston energy giants among top AI adopters and more news to know

Trending Topics

Editor's note: The top energy transition news for Oct. 15-31 includes AI integration among energy leaders and the most promising startups from an annual pitch competition. Here are the most-read EnergyCapitalHTX stories for the second half of October:

1. 2 Houston energy giants appear on Fortune’s inaugural AI ranking

ExxonMobil is on Fortune's first-ever AIQ ranking. Getty Images

Two Houston-area energy leaders appear on Fortune’s inaugural list of the top adopters of AI among Fortune 500 companies. They are: No. 7 energy company ExxonMobil, based in Spring and No. 47 energy company Chevron, based in Houston. They are joined by Spring-based tech company Hewlett Packard Enterprise, No. 19. All three companies have taken a big dive into the AI pool. Continue reading.

2. Energy Tech Nexus names 8 startup winners from Pilotathon pitch event

Eight startups were given awards at Energy Tech Nexus' Pilotathon. Photo via Getty Images.

Energy Tech Nexus held its Pilotathon and Showcase during the second annual Houston Energy & Climate Startup Week last month and granted awards to eight startups. This year's event, focused on the theme "Energy Access and Resilience," offered 24 startups an opportunity to pitch their pilot projects. Continue reading.

3. Houston organization proposes Gulf Coast index for hydrogen market

The Clean Hydrogen Buyers Alliance plans to create the Gulf Coast Hydrogen Index to bring to bring transparency and confidence to hydrogen pricing. Photo via Getty Images

The Clean Hydrogen Buyers Alliance has proposed an index aimed at bringing transparency to pricing in the emerging hydrogen market. The Houston-based alliance said the Gulf Coast Hydrogen Index, based on real-time data, would provide more clarity to pricing in the global market for hydrogen. The benchmarking effort is being designed to benefit clean hydrogen buyers, sellers and investors. The index would help position the U.S. “as the trading anchor for hydrogen’s next chapter as a globally traded commodity,” the alliance said. Continue reading.

4. Houston clean energy company to develop hybrid renewable project in Port Arthur

The new Pleasure Island Power Collective in Port Arthur is expected to generate 391 megawatts of clean power. Photo via unsplash.

Houston-based clean energy company Diligence Offshore Services has announced a strategic partnership with Florida-based floating solar manufacturing company AccuSolar for the development of a renewable energy project in the Port Arthur area. Known as the Pleasure Island Power Collective, it will be built on 2,275 acres across Pleasure Island and Sabine Lake. It is expected to generate 391 megawatts of clean power, alongside a utility-scale battery energy storage system. Continue reading.

5. Port Houston reports emissions progress as cargo volumes climb

Ric Campo says Port Houston is “moving in the right direction.” Photo via Getty Images.

Port Houston’s initiatives to reduce emissions have shown some positive results, according to new data from the Port of Houston Authority. Pulling from the Goods Movement Emissions Inventory (GMEI) report, which tracks port-related air emissions, Port Houston cited several improvements compared to the most recent report from 2019. Continue reading.

3 energy transition cos. in the running for Houston Startup of the Year

People's Choice

We're just two weeks away from the 2025 Houston Innovation Awards, presented by InnovationMap.com, and while an expert panel of judges will determine the winners in most categories, one award is up to the public.

Voting is now open for 2025 Houston Startup of the Year, the people's choice award. Six exceptional finalists are in the running for the title, including three from the energy transition sector.

From next-gen biobased materials to technology that creates chemicals without carbon emissions, these companies are shaping the future.

Read about all of the Startup of the Year finalists and their missions below, then cast your vote. You can vote once per day through November 12.

The winner, along with winners in all other categories, will be revealed live on November 13 at Greentown Labs. Tickets to the 2025 Houston Innovation Awards are available now — get yours today.

2025 Houston Startup of the Year finalists:

Eclipse Energy

Eclipse Energy, previously known as Gold H2, is a climatetech startup converting end-of-life oil fields into low-cost, sustainable hydrogen sources. The company completed its first field trial this summer, which demonstrated subsurface bio-stimulated hydrogen production. Eclipse Energy says Its technology could yield up to 250 billion kilograms of low-carbon hydrogen.

Rheom Materials

Rheom Materials is a next-generation startup developing biobased materials for a more sustainable future. Its two flagship offerings are Shorai, a sustainable leather alternative that is usable for apparel, accessories, car interiors, and more, and Benree, an alternative to plastic without the carbon footprint.

Solidec

Solidec is a chemical manufacturing company developing autonomous generators that extract molecules from water and air and convert them into pure chemicals and fuels that are free of carbon emissions. The technology eliminates the need for transport, storage, and permitting.

FlowCare

FlowCare is developing a period health platform that integrates smart dispensers, education, and healthcare into one system to make free, high-quality, organic period products more accessible. FlowCare is live at prominent Houston venues, including Discovery Green, Texas Medical Center, The Ion, and, most recently, Space Center Houston, helping make Houston a “period positivity” city.

MyoStep

MyoStep is a next-generation, lightweight, soft exoskeleton developed at University of Houston for children with cerebral palsy. The soft skeleton aims to address motor impairments that impact their ability to participate in physical activities, self-care, and academics, via an affordable, child-friendly solution that empowers mobility and independence.

Persona AI

Persona AI is a humanoid robotics startup that is creating rugged, autonomous robots for skilled, heavy industry work for various "4D" (dull, dirty, dangerous, and declining) jobs. In May, the company announced a memorandum of understanding with HD Korea Shipbuilding & Offshore Engineering, HD Hyundai Robotic, and Vazil Company to create and deploy humanoid robots for complex welding tasks in shipyards. The project will deliver prototype humanoids by the end of 2026.

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