SLB's OneSubsea will provide seawater injection systems to boost recovery and cut emissions at Petrobras' Búzios field. Photo courtesy of SLB

Houston energy technology company SLB announced a contract award by Petrobras to its OneSubsea joint venture for two subsea raw seawater injection systems to increase recovery from the prolific Búzios field in offshore Brazil.

The subsea RWI systems will work to increase the production of floating production storage and offloading (Petrobras FPSO) vessels that are currently bottlenecked in their water injection capacities.The RWI systems, once operational, can reduce greenhouse gas emissions per barrel of oil.

“As deepwater basins mature, we see more and more secondary recovery opportunities emerging,” Mads Hjelmeland, CEO of SLB OneSubsea, says in a news release. “Subsea raw seawater injection is a well-proven application with a strong business case that we think should become mainstream. By placing the system directly on the seabed, we free up space and reduce fuel needs for the FPSOs as well as lessen the power needs for the injection systems. It’s a win-win for Petrobras, and one that we are very excited about.”

SLB OneSubsea works to “optimize oil and gas production, decarbonize subsea operations, and unlock the large potential of subsea solutions to accelerate the energy transition,” per to the company.

SLB OneSubsea is contracted to provide two complete subsea RWI systems to support Petrobras’ FPSOs P-74 and P-75. They will consist of a subsea seawater injection pump, umbilical system and topside variable speed drive. In addition,the team will also provide technical support using AI-enabled Subsea Live services, which includes condition monitoring and access to domain experts.

“This contract will consolidate our solid local content presence in the country, contributed by the largest manufacturing plants and state-of-the-art subsea service facilities in Brazil,” Hjelmeland continues.

The new joint venture, OneSubsea, is based in Oslo, Norway, and Houston. Photo courtesy

Houston company closes offshore JV deal to drive innovation, efficiency in subsea production

teaming up

A new joint venture with co-headquarters in Houston will explore opportunities in the market for subsea systems that tap into offshore energy reserves.

The business, called OneSubsea, is a joint venture of Houston-based energy technology company SLB (Schlumberger), Norwegian energy engineering company Aker Solutions, and Luxembourg-based energy engineering company Subsea7. SLB holds a 70 percent stake in OneSubsea, with Aker’s share at 20 percent and Subsea7’s share at 10 percent.

The financial foundation of the joint venture is a combination of $700.5 million in stock, cash, and a promissory note. In addition, SLB and Aker folded their subsea businesses into the joint venture, which was announced in 2022.

“As demand grows for cost-effective, efficient, and sustainable energy,” the joint venture says, “a large portion of the corresponding supply increase will come from offshore developments resulting in strong deepwater activity … and the need for innovative subsea solutions.”

OneSubsea is based in Oslo, Norway, and Houston.

As Aker explains, a subsea system “provides a way to produce hydrocarbons from areas not economically or easily developed by the use of an offshore platform.” The system’s ocean-floor components are connected to subsea pipelines, riser systems, and other equipment.

Hydrocarbons are the key components of oil and natural gas.

“The offshore market is demonstrating a sustained resurgence as operators across the world look to accelerate development cycle times and increase the productivity of their offshore assets,” says Olivier Le Peuch, CEO of SLB.

Mads Hjelmeland is the newly appointed CEO of OneSubsea, which employs about 11,000 people around the world.

“OneSubsea’s extensive technology portfolio and engineering expertise enable us to address future market trends and needs at a unique scale. In doing so, we aim to fulfil our purpose of expanding the frontiers of subsea to drive a sustainable energy future,” says Hjelmeland, who is based in Houston.

Hjelmeland’s tenure with the previous iteration of OneSubsea began in 2014. That’s a year after SLB and Cameron, a supplier of equipment, systems and services for the oil and gas industry, formed a joint venture known as OneSubsea to serve the subsea oil and gas market. SLB owned a 40 percent stake in OneSubsea, and Cameron owned a 60 percent stake.

To establish OneSubsea, Cameron contributed its subsea business, and SLB pitched in a $600 million payment to Cameron along with several business units.

In 2016, SLB acquired Cameron in a cash-and-stock deal initially valued at $14.8 billion. OneSubsea then became a subsidiary of SLB, and that subsidiary is now part of the newly reconfigured OneSubsea.

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Houston startup wins Space Force contract to advance quantum energy generator

quantum contract

Houston-based quantum energy technology startup Casimir Inc. has been awarded an STTR Phase I contract from the U.S. Space Force's SpaceWERX to support the development of the company's solid-state generator for potential use by the Department of the Air Force.

SpaceWERX is the innovation arm of the U.S. Space Force and a division within AFWERX, the incubator and innovation arm of the United States Department of the Air Force. The Air Force Research Laboratory and SpaceWERX, along with many other government agencies, help support innovation through the Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) grants and contracts.

As part of the new contract, Casimir will work to refine a fully independent generator. Casimir’s solid-state power technology could support national security missions by providing reliable power even in difficult-to-service environments.

In May, Casimir emerged from stealth, netting a $12 million seed round to commercialize its quantum energy chip. The semiconductor chips can generate power from quantum vacuum fields without the need for batteries or charging. The company aims to include the chips in large-scale energy systems that can power homes, commercial infrastructure and electric vehicles.

“This STTR funds some analysis work to address our proposed scaling approach of making our chips multi-layer to increase aggregate power,” Harold “Sonny” White, founder and CEO of Casimir, tells Energy Capital.

White adds that the company will work with Texas A&M to develop chip planarization techniques to support Casimir’s plans to scale. Additionally, White says the company is working with the U.S. Space Force to explore more applications for its technology.

“Casimir’s technology brings a new capability to the market in the form of our persistent power chips,” White adds. “This approach will be relevant to ultra-low-power electronics, and with the scaling approach we are developing, connected with the STTR work, will eventually be relevant to consumer electronics and beyond.”

Casimir has previously reported that it plans to commercialize its first-generation MicroSparc chip by 2028. The chips are expected to power devices for years without the need for replacements.

The total funding for this project has not yet been disclosed.

Houston clean energy tax compliance platform tops the Inc. 5000 in 2026

Top of the List

Houston-based Empact Technologies has ridden the clean energy wave to the Inc. 5000’s 30 fastest-growing private companies.

With three-year revenue growth of 8,275 percent, the clean energy tax credit compliance management platform appears at No. 27 on this year’s Inc. 5000 list. The 2026 list ranks private companies based on percentage revenue growth from 2022 to 2025.

Empact Technologies, also ranks as the No. 2 fastest-growing company in Houston and the No. 4 fastest-growing company in Texas.

Originally founded by Charles Dauber in 2012, Empact Technologies relaunched in 2023 as a purpose-built tool for clean energy tax credit compliance, following the creation of the Inflation Reduction Act, the largest clean energy investment incentive in U.S. history.

It provides a platform for clean energy developers, investors, and contractors, and combines its NexusIQ AI-native compliance platform with a dedicated team of technical and regulatory experts to ensure ongoing compliance and documentation.

Empact Technologies is joined by six other Houston-area companies in the top 250 of this year's Inc. 5000, including one that made the top 10.

Here are the six other Houston-area companies that claimed spots in the top 250 on the Inc. 5000 list. Each company name is followed by its ranking, headquarters city, and three-year growth rate.

  • No. 6 Equipe Realty, 23,210 percent
  • No. 60 Action1, 4,512 percent
  • No 75 Signs By G, 3,684 percent
  • No. 79 The ’Pause Life, 3,469 percent (Galveston)
  • No. 110 Turtlebox Audio, 2,576 percent
  • No. 178 Dahnani Private Equity Group, 1,904 percent (Stafford)
Empact and fellow honorees will be recognized Oct. 14-16 at the 2026 Inc. 5000 Conference & Gala in Dallas.

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A version of this article first appeared on InnovationMap.com.

Sage Geosystems brings South Texas geothermal plant online

powering up

Houston-based Sage Geosystems, a provider of geothermal power, has begun full operations at its South Texas facility for the San Miguel Electric Cooperative.

Sage says the plant was recently “placed in service,” according to a news release. This means it’s fully built and tested, and ready to generate and supply electricity to the grid.

Since selling its first electricity in Q2 of this year, the facility has been operating for more than four months to evaluate aspects like efficiency and water management. Sage relied on its GeoTwin modeling tool to carry out some of the testing.

The testing demonstrates Sage’s proprietary approach to geothermal power “overcomes one of the industry’s most persistent challenges, high water losses in engineered reservoirs, while delivering the consistent performance required to scale next-generation geothermal,” co-founder and CEO Cindy Taff said in the release.

Sage says the South Texas facility will serve as a model for future projects, including one in Nevada. The Nevada facility will use Sage’s proprietary technology to extract geothermal heat from hot dry rock, creating a reliable, affordable source of carbon-free power.

During the testing period, water losses amounted to less than 10 percent. This low rate indicates most water remains in the system, enabling Sage to capture more usable energy, boost power production and improve the project’s finances, the company says.

“Commercial geothermal isn’t just about creating a reservoir. It’s about creating one whose performance can be engineered, predicted, and consistent,” Lev Ring, the company’s co-founder, president and chief technology officer, said in the release.

Since being founded in 2020, Sage has raised $159 million in outside funding. This includes a more than $97 million Series B round co-led by Ormat Technologies and Carbon Direct Capital.

Two years ago, Sage announced a deal with Meta Platforms, the parent company of Facebook and Instagram, to supply up to 150 megawatts of geothermal power to Meta data centers.