Texas and California represented 61 percent of the total installed capacity of utility-scale energy storage for solar and wind power in the final three months of last year. Photo via Getty Images

When it comes to the storage of solar and wind energy, Texas might be able to swipe the Sunshine State nickname from Florida.

The Lone Star State led all states in the fourth quarter of 2024 with the installation of 1.2 gigawatts’ worth of utility-scale energy storage for solar and wind power, according to the recently released U.S. Energy Storage Monitor. In second place was California, with 875 megawatts’ worth of utility-scale storage installed in the fourth quarter. Together, Texas and California represented 61 percent of the total installed capacity in the final three months of last year.

The American Clean Power Association and Wood Mackenzie, a provider of data and analytics for the energy sector, issued the report.

Utility-scale systems stash large amounts of electricity generated by solar and wind for future use, easing the strain on power grids during periods of peak usage and power outages.

“Energy storage is solidifying its place as a leading solution for strengthening American energy security and grid reliability in a time of historic rising demand for electricity,” Noah Roberts, vice president of energy storage at the clean power organization, said in a statement. “The energy storage industry has quickly scaled to meet the moment, and deliver reliability and cost savings for American communities, serving a critical role [in] firming and balancing low-cost renewables.”

Texas has the most utility-scale solar capacity installed and is home to 20 percent of the overall U.S. solar fleet. Photo via Getty Images

Texas passes California on national report of top solar states

by the numbers

For the first time, Texas has passed California in the second quarter of 2024 to become the top solar state in the country.

The American Clean Power Association's quarterly market report found that, by adding 3,293 megawatts of new solar year-to-date, Texas has the most utility-scale solar capacity installed, comprising 20 percent of the overall U.S. solar fleet. The American Clean Power Association, which represents over 800 energy storage, wind, utility-scale solar, transmission, and clean hydrogen companies, found that Texas is home to 21,932 megawatts of capacity,

By utilizing clean energy initiatives, Texas included 1.6 gigawatts of new solar, 574 megawatts of storage, and 366 megawatts of onshore wind. With more than 28,000 megawatts, Texas had the highest volume of clean power development capacity in the second quarter. About 163,000 megawatts of capacity overall are in the works throughout the United States. Texas ranks No. 1 for total operating wind capacity and total operating solar capacity, and comes in second for operating storage capacity.

Texas again led in production levels with clean power construction projects nationally, which boasts more than 19,000 megawatts worth of clean power energy currently under construction. With almost 28.3 gigawatts in advanced development or under construction, Texas continues to come in at No.1, as California is next with over 16.4 gigawatts in the state’s project pipeline.

California added more than 1,900 megawatts of new clean power capacity in the second quarter, with its clean energy development behavior leaning more towards adding storage, which amounts to 60 percent of California’s year-to-date clean power installations.

According to the report from SmartAsset, the Lone Star State has the most clean energy capacity at 56,405 megawatts due to its sheer size for solar capacity, but continues to trail states with similar geographic characteristics in overall clean energy prevalence.

Another report published by the U.S. Energy Information Administration, says Texas will make up 35 percent of new utility-scale solar capacity in the U.S. this year, followed by California (10 percent) and Florida (6 percent).

While Texas’ solar efforts have shown positive trends, the state ranked No. 38 in a report by WalletHub that determined it was the thirteenth least green state.

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Only 8 of 160 utility companies in Texas have filed wildfire response plans

Utility News

Only eight of 160 utility companies that operate in fire-prone areas of Texas have complied with a law that helps mitigate wildfires, lawmakers recently learned. The revelation comes on the heels of a chaotic wildfire season that has continued through the summer.

Lawmakers learned about the slow progress last week during a House State Affairs committee hearing, led by Rep. Ken King, who led the charge on the new law last year. The law under House Bill 145 requires utility companies to file wildfire mitigation plans to the Public Utility Commission.

The plans must include emergency protocols in the case of a wildfire, utility operating plans during high-risk weather conditions, management of grass, shrubs and other vegetation in areas that are at risk of wildfires, inspection of poles and other electric equipment and identified areas of wildfire risks within a utility’s service territory.

King, a Republican from Canadian where much of the wildfire damage occurred during the Panhandle wildfires, pressed utility companies on the lack of compliance.

“I’m very, very disappointed with the industry,” King said. “I think it’s imperative for anybody that has not filed that report to realize January is coming. You will file that wildfire mitigation plan, and if you’re dragging your feet, there’s no excuse good enough for me.”

Last year, King filed a slew of bills in response to the devastating Smokehouse Creek wildfires in the Texas Panhandle and parts of Oklahoma in 2024. It was the largest wildfire in Texas history, started when a decayed power pole owned by Xcel Energy snapped and landed in dry grass.

It was one of a spate of fires, the majority of which were linked to electrical ignitions.

This year alone has been a very active wildfire season. Nim Kidd, chief for the Texas Division of Emergency Management, said the state has helped local governments respond to more than 1,200 fires since the start of the year. The Ross Fire, which burned for more than three weeks in North Texas, was finally contained by firefighters last week. It’s now the second largest wildfire in the region’s history.

Two wildfires have broken out on Craig Cowden’s Panhandle ranch this year, both ignited by electrical equipment used by oil and gas companies. Cowden extinguished them, before they could spread beyond 5 acres — a fraction of the 20,000 acres he lost to wildfires in 2024.

Cowden was one of many ranchers who worked with lawmakers last year to address the problem. Over the years, several fires have started on Cowden’s land, most of which were the result of faulty or damaged electrical equipment.

“It’s kind of discouraging that there hasn’t been more proactively submitting their wildfire plan,” Cowden said.

Slow progress

There has been progress since the bill was filed. According to King, six fires have been linked to electrical issues this year, a significant decrease from 80 in 2024.

Connie Corona, director at the PUC, explained the lag in filings to lawmakers, stating that on top of the eight who have submitted, four more have given the PUC a date for when they intend to file their plans. Corona said another 135 have indicated to the PUC they are in the process of preparing their plan. This leaves 13 who have not communicated their plans to the PUC.

“We’ve asked for a heads-up notice of when the utility plans to file, and try to ensure that meets with the resources we have available,” Corona told lawmakers.

Corona said PUC staff had created a model wildfire mitigation plan that utility companies can use as a template. The model is intended to support smaller utility companies that lack sufficient resources to make their own plan. King asked Corona for a list of entities who complied with the requirement.

“When eight out of 160 have complied, and we’re sitting here in September, that doesn’t sound like a very good response to me,” King said.

A looming deadline

Brad Baldridge, interim president of Southwestern Public Service Company, which operates as Xcel Energy, told lawmakers what his company is doing to mitigate wildfires. The company was heavily criticized in the wake of the fires and has since deployed 97 wildfire detection cameras across its service territory. The cameras use AI to detect smoke and provide that information in real-time to utility personnel, local fire responders and emergency managers. It also uses Public Safety Power Shutoffs to turn off power in certain areas during critical wildfire conditions to prevent an electrical start. Baldridge said since 2024, the company has had to shut off power five times.

When King asked if the company had submitted its wildfire mitigation plans, Baldridge said it was submitted last month. It would have been submitted earlier, he said, but there was “tremendous” vegetation that grew from rain earlier in the year.

“All of our experts were focusing on wildfire mitigation,” Baldridge said. “Which delayed us a little bit in our filing.”

Mark Bell, CEO for the Association of Electric Companies of Texas, said they are using remote cameras and sensors to detect wildfires and are taking a more aggressive approach to manage vegetation. They also use power shutoffs in extreme conditions to minimize the risk. Bell testified that their utility companies were on track to file their wildfire mitigation plans.

“I think all the plans are going to be filed by the end of the year,” Bell said.

King reminded Bell that it’s September, and many haven’t filed yet.

“That’d be 148 (plans) approved before January,” King said.

Bell assured King that five of them have filed their plans and one is scheduled to file in October.

Corona, with the PUC, said there are also pole and maintenance plans due in January that will detail a complete inventory of those assets owned by utilities. King said the plan is to have the companies list everything they own in Texas, where it is and how old it is. However, he said they aren’t being compliant and lawmakers will see what happens in January.

Cowden, the rancher in the Panhandle, told the Tribune that while it’s not technically fire season anymore, there are still small fires that ignite around the area.

Cowden sees the amount of work being done by Xcel Energy to upgrade their electrical poles and infrastructure in the area. He said it’s different than before the wildfires in 2024. He thinks the fires got their attention.

“You can tell they’re making a conscious effort to try to upgrade their infrastructure,” Cowden said.

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This story was originally published by The Texas Tribune and distributed through a partnership with The Associated Press.

Houston-based ‘grid in a box’ provider Branch Energy raises $33M

fresh funding

Houston-based startup Branch Energy, which offers a self-contained “grid in a box,” has collected $33 million in a Series B round.

Piva Capital and Clean Energy Ventures led the round, according to a news release. Active Impact Investments, Whitecap Venture Partners, Prelude Ventures, Zero Infinity Partners and Inovia Capital also contributed to the round.

In 2024, Branch raised $10.8 million in an oversubscribed Series A round.

Branch’s business model

Branch, which launched in 2021, says its proprietary Arc “grid in a box” contains everything needed to store and supply electricity. A container about the size of a parking space holds an industrial-grade battery, grid connection equipment, cooling capabilities, autonomous controls and cloud-based management software.

The startup installs Arc systems at warehouses, hotels, factories, stores and other commercial properties. Each system arrives on a flatbed truck and can be online within two days, Branch says.

Under Branch’s business model, a property owner avoids upfront payment for an Arc system.

Aside from equipping a host business with an Arc system, Branch serves as the business’ power provider. The startup says it guarantees savings on the host’s energy bills and delivers backup power during outages.

Branch generates revenue by sending the battery’s stored power to the grid or to customers like hyperscale data centers. It also benefits by shifting energy from low-cost periods at night to high-cost periods during daily power peaks.

The startup handles permitting, installation, insurance and operations for each Arc system. The host provides a parking-lot-sized plot of land for the system.

Alex Ince-Cushman, co-founder and CEO of Branch, says the startup’s “grid in a box” can quickly meet the substantial power requirements of hyperscale data centers.

“We can do it on the timeline of a delivery, not a construction project. Our customers don’t lift a finger, don’t pay a dime and get guaranteed savings,” Ince-Cushman said in the release.

Entering the Illinois market

Branch already operates in Texas and is entering the Illinois market.

PJM, which operates Illinois’ power grid, recently paved the way for major energy users like data centers to connect to the grid sooner when they rely on their own electricity generation. PJM’s territory covers roughly 1.2 million commercial buildings and represents 20 percent of U.S. power demand, according to Branch.

“Grids around the country need the distributed capacity that [the Arc] system can supply, especially in states with fast-growing power demand like Texas and Illinois,” Lee Larson, principal at Piva Capital added in the release.

To keep up with that demand, Branch plans to build tens of thousands of Arc systems in the U.S.

A multibillion-dollar company in the making?

Daniel Goldman, co-founder and managing partner of Clean Energy Ventures, said Branch holds the potential to become a multibillion-dollar competitor in the emerging market for distributed power.

“With utility-scale generation and storage challenged by interconnect and siting constraints, behind-the-meter commercial, and industrial storage sites have become the ultimate market opportunity with ease of interconnect, ability to combine distributed AI data centers, and identifiable savings in rapidly growing markets,” Goldman said.

Rice Alliance, Greentown name winners of Houston Energy and Climate Week pitch competitions

winner winners

Approximately 100 startups from around the world pitched their breakthrough technologies and businesses during Houston Energy and Climate Week, with a select few taking home top prizes and bragging rights.

Each year, investors at the Rice Alliance Energy Technology Venture Forum name the 10 most-promising startups. Greentown's Climatetech Summit also culminates in a pitch event, where member companies can earn cash prizes.

Here's who won at two of the week's anchor events and competitions.

Rice Alliance Energy Tech Venture Forum

The 23nd annual event was held Thursday, Sept. 17, at Rice University’s Jones Graduate School of Business. The most-promising companies were selected by industry experts and participating investors attending the event.

The 10 most-promising companies included:

  • Australia-based Aquafortus, which has developed a non-thermal liquid to liquid desalination technology for resource recovery from wastewater brine
  • Houston-based Focis AI, which converts industrial laser scans into a queryable digital twin of refineries and plants
  • Houston-based ironlattice, a semiconductor manufacturing company
  • Houston-based Licube, which has developed technology to produce ultra-high-purity lithium compounds for the fusion energy, pharmaceuticals, semiconductors and high-performance solid-state battery sectors
  • Houston-based Mars Materials, a clean chemical manufacturing business that is working to convert captured carbon into resources, such as carbon fiber and wastewater treatment chemicals
  • Dallas-based MCatalysis, which has developed a suite of proprietary microwave-driven catalysts to produce high-quality, ready-to-use fuels compatible with existing infrastructure
  • Oslo, Norway-based OTee, an automation machinery manufacturer
  • Houston-based Pike Robotics, which deploys its Wall-Eye robot to inspect hazardous tanks without taking assets offline
  • New Mexico-based Spiritus, a direct-air-capture (DAC) technology company
  • San Francisco-based UptimeAI Inc., which develops AI reasoning agents for industrial operations teams

Stellai won the People's Choice Award. The Norwegian company develops AI products for the waste management industry.

The energy technology ventures selected to participate in the forum were named earlier this year. See the full list here, and read about last year's winners here.

Greentown Lab's Climatetech Summit

The annual summit was held Wednesday, Sept. 16, featured a number of Houston startups in its pitch competition and lighting pitch round. Judges included Dave Dreessen,, Jon Greene, Naval Preet Singh, Philip Llewellyn, Erin Madro, Justin Yeung, Jay Kim, Rawand Rasheed and Moji Karimi.

Pitch winners included:

  • First place: Elementium Materials' CEO Matthew Dawson, winning a $10,000 cash prize sponsored by TotalEnergies plus another $10,000 in legal services sponsored by Foley Hoag. The company develops advanced battery electrolytes. It is a Greentown Boston member; though Dawson is based in Houston.
  • Second place: Houston-based Solidec CEO and co-founder Ryan DuChanois, winning $5,000 in legal services sponsored by Foley Hoag. The company electrolyzes air, water and electricity into onsite hydrogen peroxide.

Lightening pitch winners included:

  • First place: Montana-based MagDrive Technologies, winning a $1,000 cash prize sponsored by Energy Transition Ventures. The company develops magnetically actuated, zero-emission valve systems that eliminate fugitive emissions and improve reliability.
  • Second place: Houston-based HEXASpec, winning a $500 cash prize sponsored by Foley Hoag. The company has created a new material to improve heat management for the semiconductor industry.

Read Greentown's recap of the summit here.

Houston Energy and Climate Week announced that the 2027 event will move to the spring, held April 4-10.