Houston-based VoltaGrid provides small-scale, self-contained microgrids that can operate independently of major power grids or in tandem with other microgrids. Photo via voltagrid.com

VoltaGrid, a Bellaire-based startup that specializes in distributed power generation via microgrids, has hauled in $150 million in equity funding.

Founded in 2020, VoltaGrid provides small-scale, self-contained microgrids that can operate independently of major power grids or in tandem with other microgrids. VoltaGrid’s product consists of natural gas engines, portable energy storage, natural gas processing and grid power connectivity.

Investors in the $150 million round include the Canada Pension Plan Investment Board (CPP Investments), Longbow Capital, Walter Ventures, and Pilot Company (operator of more than 800 retail and fueling locations in the U.S. and Canada). The $150 million round comes less than a year after VoltaGrid announced a $100 million round featuring the same investors.

VoltaGrid says it will spend the fresh cash to grow its power generation portfolio, along with its low-carbon fuel program in partnership with Pilot. The low-carbon platform features hydrogen and compressed natural gas.

“VoltaGrid continues to set new milestones across multiple sectors and business lines as we execute on our proven strategy with key partners,” Nathan Ough, president and CEO of VoltaGrid, says in a news release.

“Our strategy to establish one of the largest asset bases of portable generation, uniquely paired with our low-carbon fueling solutions, has significantly decreased the complexity for our partners to electrify their operations. I am thankful to our team members for the tremendous amount of work that has been contributed to create one of the largest portfolios of contracted low carbon fuels in the industry.”

Ed Pettitt and Paresh Patel join the Houston Innovators Podcast to discuss InnoGrid's potential impact on equitable power. Photos courtesy of InnoGrid

Houston founders aim to provide equity through energy resiliency

Houston innovators podcast episode 143

As temperatures climb and devastating natural disasters continue to test the power grid, two Houston innovators have a solution: Smart microgrids.

"Microgrids have been around for a very long time," Paresh Patel, co-founder of InnoGrid, says on the Houston Innovators Podcast. "We're primed here in Houston and in Texas to really see microgrids go mainstream. ... People want to see that they have control and are in charge of their own power."

Patel co-founded InnoGrid with Ed Pettitt and a few other collaborators following the 2020 Houston Climathon. The social enterprise is working to establish community microgrids in lower income areas — neighborhoods that are most at risk of devastating power outages.

"We want to convert the commercial microgrid model for low and moderate income and undresourced residential communities," Patel explains.

And there's never been a better time to shine a spotlight on microgrids as a solution to unreliable power systems, Pettitt says.

"We're dealing with massive inflation — costs are going up especially in food and energy," he explains on the show. "Even prior to this time of inflation, electricity prices in the US were expected to increase across the board. Hundreds of thousands of people right now today are being pushed below the poverty line because of increased energy costs. We need to be more creative in how we upgrade our infrastructure."

And the current grid system is well overdue for an upgrade. The microgrid system fits right in with the shared economy we live in today, Patel says, and it allows for more generation of energy that is decentralized, digitalized, decarbonized, and democratized — the four Ds as he says.

"When you consider our current grid system, it is a vestige of the industrial revolution — it's 140 years old. That business model is ripe for innovation," Patel says.

"We need to accelerate deployment of microgrid models," he continues. "I don't think we can afford to update our current grid system — it'll cost $2 trillion."

Most importantly, these microgrids need to be implemented in an equitable way, the founders say, and InnoGrid has its eyes on one Houston area in particular. The Innovation Corridor, which spans from the Texas Medical Center to Downtown Houston, would be the ideal region to deploy the technology.

"If you look at the innovation corridor, it forms the spine of the city. You have so many important municipal buildings, first-responding organizations, and a large amount of affordable housing in the area. There's critical resources here that we want to make sure the lights stay on in power disasters," Pettit says. "One of the things we believe at InnoGrid is that where you live shouldn't determine whether or not you survive a national weather event. We want to make sure we provide energy stability in the communities that need it most."

To make this dream into a reality, InnoGrid needs the right partnerships and support in the area — and the founders have made progress. InnoGrid recently participated in the Ion Smart and Resilient Cities Accelerator and has a relationship with Greentown Houston across the street.

Eventually, as Pettit says, InnoGrid wants to help lead Houston to becoming a hub for microgrid innovation.

"We're looking at other cities — like Chicago and Boston — and how they've deployed their microgrids and making sure we're bringing those best practices in Houston," Pettit says. "Eventually we want to be the leader in developing these microgrid best practices as the energy capital of the world."

Patel and Pettitt share more about InnoGrid and microgrid technology on the podcast. Listen to the interview below — or wherever you stream your podcasts — and subscribe for weekly episodes.


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Houston space tech co. revises timeline for commercial space station development with NASA partnership

new game plan

Houston-based Axiom Space is accelerating its development of a commercial space station.

NASA awarded Axiom a contract in January 2020 to develop a space station for commercial use. Initially, the station was supposed to be attached to the International Space Station. Later, it was supposed to become a free-flying space station in low-earth orbit before retirement of the current space station in 2030.

In coordination with NASA, Axiom Space has modified the plan.

Initially, Axiom planned to attach its first module, Habitat 1, to the space station, followed by three additional modules. Under the new scenario, the payload, power, and thermal modules will be launched first. This will enable the modules to join the current space station as early as 2028, becoming a free-flying station called Axiom Station.

“The International Space Station has provided a one-of-a-kind scientific platform for nearly 25 years,” says Dana Weigel, manager of the International Space Station program at NASA’s Johnson Space Center.

“As we approach the end of [the] space station’s operational life," she continues, "it’s critically important that we look to the future of [low-earth orbit] and support these follow-on destinations to ensure we continue NASA’s presence in microgravity, which began through the International Space Station.”

In free flight, Axiom will continue assembling the commercial destination, adding the Habitat 1 module, an airlock, the Habitat 2 module, and a research and manufacturing lab.

“We were ready to answer the call when NASA asked us to relook at our space station development plan,” Mark Greeley, Axiom Space COO and Axiom Station program manager, says in a statement from Axiom. “Our ongoing assessment of the assembly sequence revealed opportunities for flexibility and enhancements. With the International Space Station needing to protect for the ability to accommodate a deorbit vehicle on station, we were able to accelerate this work to support the program’s requirements.

“NASA has been extremely collaborative and supportive of the new plan as it addresses its deorbit operational concerns and preserves critical capabilities currently utilized on the International Space Station,” he adds. “This revised approach not only aligns with U.S. objectives but also delivers immediate value for our customers and investors.”

The Axiom's Payload Power Thermal Module primary structure is being constructed by Thales Alenia Space in Turin, Italy, and then moved to Houston by fall 2025, where the rest of the internal structure and systems will be integrated at Axiom Space facilities.

“Working with leading experts like Thales Alenia, who have a proven record in module development and a strong relationship with NASA, is integral to our operations and vision," Tejpaul Bhatia, Axiom Space chief revenue officer, says.

“By engaging and integrating with a network of partners from around the world, we access cutting-edge technologies and innovative solutions that enhance our capabilities and supply chain,” Bhatia adds. “Our customer base is truly global, including governments, private entities, and research institutions. This diversity enables us to meet a wide range of needs and reinforces our belief that space exploration is a collective endeavor for the benefit of all of humanity.”

Axiom has revised its plan for its commercial space station. Image via Axiom

Promising Houston sleep tech startup readies for big year of growth, work toward FDA clearance

HOUSTON INNOVATORS PODCAST EPISODE 268

There's a slew of treatment options for people living with sleep apnea. But, the bigger problem, as Meagan Pitcher realized during her time at the Texas Medical Center's Biodesign program, is that there's no easy way to reliably diagnose and determine a treatment plan for patients.

"We saw all of the companies trying to solve the problem of making the airway collapse less or make the air way wider — it might be surgery, might be medication, or nerve stimulation," Pitcher says on the Houston Innovators Podcast. "One of the things we found was that it was really hard to match a patient with sleep apnea with a good treatment for them. One of the reasons is it's hard to get an understanding of where the individual's site of collapse is as sleep medicine is currently practiced."

As Pitcher went through the TMC Biodesign program, she teamed up with her co-founders — CTO Onur Kilicand and CMO Britt Cross — to find a solution, and together they developed Bairitone Health. The company's technology provides at-home medical imaging using sonar sensing. The non-invasive device has the potential to replace the current standard of care, which is a surgical procedure.



This year, the company joined Activate Houston's inaugural cohort as the lone biotech company. Activate, which announced its expansion to Houston in 2023, helps hardtech founders develop and grow their companies from bench to commercialization, though it mostly focuses on industrial or climatetech innovators. In addition to this accomplishment, Bairitone Health was among the 2024 Houston Innovation Awards finalists.

While 2024 was successful for the company, next year should bring even more milestones for Bairitone, Pitcher says, including a seed round of funding that will support the growth of their team, fund early testing, and fuel Baritone's path toward FDA clearance.

"2025 is going to be a big year for Bairitone, especially around solidifying our regulatory plan. The device we're making is really low risk — we're not putting anything into the body, and we're potentially replacing a surgical procedure," Pitcher says. "We've always hypothesized that we'll have a 510(k) clearance with the FDA, but we're moving toward having our first meeting with the FDA to solidify those plans."

Bairitone's journey so far has been a uniquely Houston story, as Pitcher acknowledges.

"I really love Houston — especially for med tech. The medical center is just awesome, you have all these brilliant people coming in from the entire world to work at these institutions," Pitcher says. "It's kind of because of this atmosphere of excellence around health care, innovation, open mindedness, and collaboration — those are reasons why I really love working in Houston."

Top stories: Houston's most-read health tech news of 2024

year in review

Editor's note: As the year comes to a close, InnovationMap is looking back at the year's top stories in Houston innovation. In the health tech category on InnovationMap, top stories included startup funding raised, IPO plans, FDA clearance, and more. Be sure to click through to read the full story.

New report ranks Houston top market for life sciences

Houston lands in the No. 7 spot for growth in the granting of degrees in biological and biomedical sciences. Photo by Natalie Harms/InnovationMap

Thanks in large part to producing hundreds of college-trained professionals, Houston’s life sciences industry ranks among the top U.S. markets for talent in 2024.

In a report published by commercial real estate services company CBRE, Houston lands in the No. 7 spot for growth in the granting of degrees in biological and biomedical sciences. From 2017 to 2022, Houston notched a growth rate of 32.4 percent in this category.

In 2022, the University of Houston led the higher education pack in the region, graduating 746 people with a bachelor’s degree or above in biological or biomedical sciences, according to the report. Continue reading.

Houston innovator raises pre-seed funding for health care staffing platform

Ayoade Joy Ademuyewo founded Lokum last year to create a solution to better connecting medical specialists with health care facilities nationwide. Photo courtesy of Lokum

A Houston health care innovator is celebrating an oversubscribed round of pre-seed funding to improve on her startup's unique staffing platform.

Ayoade Joy Ademuyewo founded Lokum last year to create a solution to better connecting medical specialists with health care facilities nationwide. The new platform, which cuts out the middleman and lowers staffing costs, raised $700,000 in pre-seed funding that will go toward further development of the technology.

"Healthcare organizations spend $26 billion annually to support a crippling dependence on third-party agencies for connecting with clinical staff," Ademuyewo says in a news release. "Technological solutions that are pointed precisely to streamline and strengthen the relationships between highly specialized clinicians and their future employers are vital to alleviating this detrimental dependance, and central to our mission." Continue reading.

Houston regenerative medicine company to IPO, move toward more human trials

FibroBiologics will IPO this week. Photo via Getty Images

Want a piece of one of Houston’s most promising biotech companies? On January 31, FibroBiologics will begin the trading of its common stock on the Nasdaq stock exchange.

While most labs in the realm of regenerative medicine are focused on stem cells, FibroBiologics has bet on fibroblasts as the secret to treating myriad ailments. Fibroblasts, the most common type of cell in the body, are the primary cells that compose connective tissue.

Interested investors can find a prospectus to peruse before taking the leap. FibroBiologics filed with the U.S. Securities & Exchange Commission (SEC) on November 7, 2023. In September, FibroBiologics CEO Pete O’Heeron told InnovationMap, “I think what we're going to see is that fibroblasts are going to end up winning... They're just a better overall cell than the stem cells.” Continue reading.

Houston organizations identify promising life science cos. at annual event

The Rice Alliance and BioHouston acknowledged innovations from a dozen promising health tech companies. Photo via Rice University

For the 13th year, the Texas Life Science Forum hosted by BioHouston and the Rice Alliance for Technology and Entrepreneurship celebrated innovative companies from around the world that are creating new treatments and solutions to today's biggest health care challenges.

This week, over 40 companies presenting their innovations across cancer, cardiovascular disease, biotechnology, and more. Nearly 700 venture capitalists, corporate innovation groups, angel networks, industry leaders, academics, service providers, and others attended the event on November 7 at Rice's BioScience Research Collaborative in the Texas Medical Center.

Just like in previous years, the event ended with the announcement of the 10 companies that were deemed "most promising" based on their pitches and technologies. Of the 10 companies named, six are headquartered in Houston and an additional two startups on the list have a presence here. Continue reading.

FDA greenlights Houston surgery robotics company's unique technology

EndoQuest Robotics secured an Investigational Device Exemption from the FDA for its clinical study. Photo via Getty Images

A Houston surgical robotics company has gotten a Investigational Device Exemption from the FDA to go forward with human trials.

This news allows EndoQuest Robotics to begin its Prospective Assessment of a Robotic-Assisted Device in Gastrointestinal Medicine (PARADIGM) study, which will be conducted at leading United States health care facilities, including Brigham and Women’s Hospital (Boston), Mayo Clinic (Scottsdale), Cleveland Clinic (Cleveland), AdventHealth (Orlando), and HCA Healthcare (Houston). The study will include surgeries on 50 subjects, who will hopefully begin to enroll in January.

“The foundational thesis is we're trying to make sure that the world's largest medical center is also the world's largest med tech innovation center,” Eduardo Fonseca, interim CEO of EndoQuest Robotics, tells InnovationMap. Continue reading.