expansion plans

Energy storage startup moves into larger Houston-area space, plans to grow team

Plus Power, which recently relocated its HQ to Houston, has moved into a larger office space. Image via cushmanwakefield.com

A Northern California-born energy storage startup has established its headquarters in The Woodlands.

Plus Power, which develops battery systems designed to store backup power for electric grids, recently signed a lease for nearly 7,000 square feet at Three Hughes Landing in The Woodlands. The company previously was based in coworking space at the Rayford Office Park in Spring.

The company, founded in 2018, shifted its headquarters from San Francisco to the Houston area last year.

“We chose The Woodlands for its beauty, and walkable access to great nearby hotels, restaurants, and healthy groceries,” says Brandon Keefe, CEO of Plus Power. “A Houston base reflects our deep focus on the Texas market, as we are investing nearly $1 billion in several projects here that will be online by the first quarter of 2024, with more in [the works] behind that.”

About 40 employees work from Plus Power’s new office in The Woodlands. Across North America, the company employs about 130 people, including several in Austin. As of July 10, the startup listed nine job openings.

Plus Power develops, owns, and operates utility-scale systems that store energy in huge lithium-ion batteries during low-demand periods. In times of peak demand, power providers can tap into this stored energy.

“Standalone energy storage is rapidly transforming the U.S. energy markets, because it is cheaper than new natural gas plants, faster to build than fossil peakers or transmission, and able to perform diverse energy services,” the company explains in its job postings.

Peakers are backup power plants that run on fossil fuels.

One of Plus Power’s storage facilities is the 100-megawatt Gambit project, which opened two years ago in Angleton. The nearly eight-acre facility supports power supplies for the Electric Reliability Council of Texas (ERCOT), which runs the power grid for 90 percent of Texas.

The company says the Angleton facility has fed backup energy to ERCOT during this year’s and last year’s heatwaves, as well as last December’s winter freeze.

The Gambit facility might ring a bell with some folks in the Houston area. In January 2022, Austin-based automaker Tesla unveiled a backup power storage facility in Angleton. Plus Power bought the project from Tesla in June 2022.

Plus Power’s development pipeline contains 10 gigawatts’ worth of energy storage projects in 28 states and Canada. That includes massive projects on tap for Hawaii and Arizona.

Last November, Plus Power announced it had secured $219 million in debt financing for construction of the 185-megawatt Kapolei project on a roughly eight-acre site in Oahu, Hawaii. The facility will be tied to Hawaiian Electric’s power grid. Mizuho Securities USA and KeyBank led the financing.

This April, Plus Power held a groundbreaking ceremony for the Sierra Estrella project in Tolleson, a Phoenix suburb. The 250-megawatt system will serve Salt River Project (SRP), a utility provider in the Phoenix area. The roughly 11-acre Tolleson facility is set to open next year, as is another Plus Power project for SRP — the 90-megawatt Superstition facility in Gilbert, another Phoenix suburb.

As its development pipeline demonstrates, Plus Power is firmly plugged into the fast-growing energy storage market.

According to the Houston-based energy research and consulting firm Wood Mackenzie and the American Clean Power Association, the U.S. energy storage market installed a record-breaking 4.8 gigawatts of capacity in 2022. This year, that number is projected to approach 75 gigawatts.

In a March 2023 news release, John Hensley, the clean power group’s vice president of research and analytics, says the U.S. market “is on a rapid growth curve and is already a key component of building a resilient grid that supports abundant clean energy.”

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A View From HETI

Tim Latimer, CEO and co-founder of Fervo Energy, 2025 Scaleup of the Year. Photo courtesy of Fervo Energy

After weeks of anticipation, the 2025 Houston Innovation Awards winners have been revealed. Finalists, judges, and VIPs from Houston's vibrant innovation community gathered on Nov. 13 at Greentown Labs for the fifth annual event, which is presented by InnovationMap.com.

This year, the Houston Innovation Awards recognized more than 40 finalists, with winners unveiled in 10 categories, including multiple winners from the local energy transition space.

Finalists and winners were determined by our esteemed panel of judges, comprised of 2024 winners who represent various Houston industries, as well as InnovationMap editorial leadership. One winner was determined by the public via an online competition: Startup of the Year.

The program was emceed by Lawson Gow, Head of Houston for Greentown Labs. Sponsors included Houston City College Northwest, Houston Powder Coaters, FLIGHT by Yuengling, and more.

Without further adieu, meet the 2025 Houston Innovation Awards winners:

Minority-founded Business: Mars Materials

Clean chemical manufacturing business Mars Materials is working to convert captured carbon into resources, such as carbon fiber and wastewater treatment chemicals. The company develops and produces its drop-in chemical products in Houston and uses an in-licensed process for the National Renewable Energy Lab to produce acrylonitrile, which is used to produce plastics, synthetic fibers and rubbers. The company reports that it plans to open its first commercial plant in the next 18 months.

Female-founded Business, presented by Houston Powder Coaters: March Biosciences

Houston cell therapy company March Biosciences aims to treat unaddressed challenging cancers, with its MB-105, a CD5-targeted CAR-T cell therapy for patients with relapsed or refractory CD5-positive T-cell lymphoma, currently in Phase 2 clinical trials. The company was founded in 2021 by CEO Sarah Hein, Max Mamonkin and Malcolm Brenner and was born out of the TMC Accelerator for Cancer Therapeutics.

Energy Transition Business: Eclipse Energy

Previously known as Gold H2, Eclipse Energy converts end-of-life oil fields into low-cost, sustainable hydrogen sources. It completed its first field trial this summer, which demonstrated subsurface bio-stimulated hydrogen production. According to the company, its technology could yield up to 250 billion kilograms of low-carbon hydrogen.

Health Tech Business: Koda Health

Koda Health has developed an advance care planning platform (ACP) that allows users to document and share their care preferences, goals and advance directives for health systems. The web-based platform guides patients through values-based decisions with interactive tools and generates state-specific, legally compliant documents that integrate seamlessly with electronic health record systems. Last year, the company also added kidney action planning to its suite of services for patients with serious illnesses. In 2025, it announced major partnerships and integrations with Epic, Guidehealth, and others, and raised a $7 million series A.

Deep Tech Business: Persona AI

Persona AI is building modularized humanoid robots that aim to deliver continuous, round-the-clock productivity and skilled labor for "dull, dirty, dangerous, and declining" jobs. The company was founded by Houston entrepreneur Nicolaus Radford, who serves as CEO, along with CTO Jerry Pratt and COO Jide Akinyode. It raised eight figures in pre-seed funding this year and is developing its prototype of a robot-welder for Hyundai's shipbuilding division, which it plans to unveil in 2026.

Scaleup of the Year: Fervo Energy

Houston-based Fervo Energy is working to provide 24/7 carbon-free energy through the development of cost-competitive geothermal power. The company is developing its flagship Cape Station geothermal power project in Utah, which is expected to generate 400 megawatts of clean energy for the grid. The company raised $205.6 million in capital to help finance the project earlier this year and fully contracted the project's capacity with the addition of a major power purchase agreement from Shell.

Incubator/Accelerator of the Year: Greentown Labs

Climatetech incubator Greentown Labs offers its community resources and a network to climate and energy innovation startups looking to grow. The collaborative community offers members state-of-the-art prototyping labs, business resources and access to investors and corporate partners. The co-located incubator was first launched in Boston in 2011 before opening in Houston in 2021.

Startup of the Year (People's Choice): 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.

Mentor of the Year, presented by Houston City College Northwest: Jason Ethier, EnergyTech Nexus

Jason Ethier is the founding partner of EnergyTech Nexus, through which he has mentored numerous startups and Innovation Awards finalists, including Geokiln, Energy AI Solutions, Capwell Services and Corrolytics. He founded Dynamo Micropower in 2011 and served as its president and CEO. He later co-founded Greentown Labs in Massachusetts and helped bring the accelerator to Houston.

2025 Trailblazer Award: Wade Pinder

Wade Pinder, founder of Product Houston, identifies as an "Ecosystem Wayseeker" and is the founder of Product Houston. A former product manager at Blinds.com, he has been deeply engaged in Houston’s startup and innovation scene since 2012. Over the years, he has supported hundreds of founders, product leaders, and community builders across the Houston area. In 2023, he was honored as Mentor of the Year in the Houston Innovation Awards.

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