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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8+ Houston energy events you must attend in September 2026

Must-attend meetings

Editor's note: September is here, and that means the return of some of Houston's biggest energy events of the year. On the agenda are exciting week-long energy and climate happenings, conferences, and more. Mark your calendars for these top Houston energy transition events taking place in September 2026, and register now.

September 13-18: Houston Energy & Climate Week

Houston Energy & Climate Week is a six-day gathering that welcomes an unparalleled selection of global energy leaders and communities to the energy capital of the world for a full slate of events, from tech tours and networking to a climatetech summit and digital symposium.

This event kicks off September 13 and continues for six days. Find details here.

September 14-18: Houston Energy + Climate Startup Week

Launched in 2024, the official Houston Energy and Climate Startup Week returns for its third year, showcasing how Houston is developing and scaling real solutions by meeting growing global energy demand while reducing carbon emissions. Join leading energy and climate venture capital investors, industry leaders, and startups from around the world for this showcase of the most innovative companies and technologies that are transforming the energy industry while driving a sustainable, low-carbon energy future.

This event kicks off September 14 and continues all week. Find details here.

September 16-17: Energy Tech Venture Forum

The Rice Alliance Energy Tech Venture Forum (ETVF) brings together the founders, investors, corporate leaders, and operators building the next generation of energy systems. ETVF is where breakthrough ideas meet the capital, partnerships, and industry expertise needed to accelerate commercialization and deployment. The 23rd Energy Tech Venture Forum will take place as an anchor event for Houston Energy + Climate Startup Week.

This event begins September 16 at Rice University. Early bird registration is available here.

September 20-23: 2026 Geothermal Rising Conference

Geothermal Rising Conference is the industry’s flagship annual conference, reflecting the global nature of the geothermal industry while highlighting the width and breadth of the community. The conference offers technical, policy, and market sessions, educational seminars, tours of geothermal and renewable energy projects, and numerous networking opportunities. An additional expo showcases projects, services, and state-of-the-art technology and equipment for the geothermal community.

This event begins September 20 at Marriott Marquis Houston. Register here.

September 22-23: 2026 API Offshore Safe Lifting Conference & Expo

The 2026 API Offshore Safe Lifting Conference & Expo is your opportunity to see the latest offshore developments while sharing experiences, practices, and even information on real-life incidents. The 2026 program features two full days of technical sessions, regulatory insights, and networking focused on advancing offshore lifting safety, with keynotes, emerging technologies, and multiple networking opportunities.

This event begins September 22 at the Royal Sonesta Houston Galleria. Register here.

September 22-24: Intelligent Asset Management in Energy Summit

The Intelligent Asset Management in Energy Summit is the premier North American event dedicated to helping energy leaders unlock the full potential of their assets through advanced analytics, predictive maintenance, and integrated digital strategies. The 2026 summit will cover how innovative asset management solutions can reduce downtime, optimize performance, and deliver measurable ROI in a rapidly evolving energy landscape.

This event begins September 22 at Norris Conference Center. Register here.

September 24: Grid Flexibility Summit

The executive-level event focuses on managing surging power loads, ERCOT market challenges, and grid modernization. Through candid discussions and real-world case studies, attendees will explore how grid flexibility can act as a reliability resource, how C&I customers can become active grid partners, and how a flexible grid buys time for the development of utility-scale projects. Designed as an intimate, decision-focused forum, the event prioritizes practical insights over theory — and action over aspiration.

This event takes place September 24 at Clifford Chance. Register here.

September 29-30: Gas to Grid Infrastructure Summit

The Gas to Grid Infrastructure Summit addresses the practical infrastructure challenge behind AI growth: how to deliver reliable, scalable, affordable, and lower-carbon power when grid capacity, gas supply, equipment lead times, and permitting timelines are all under pressure. This is where utilities, midstream operators, data center developers, OEMs, EPCs, investors, regulators, and technology providers meet to define the commercial, technical, and regulatory pathways for the next wave of gas-fired and grid-connected infrastructure.

This event begins September 29 at Norris Conference Center. Register here.

SLB to expand data center cooling business via $4 billion acquisition

cool deal

Houston’s SLB has announced plans to acquire German thermal management and heat exchange technology organization Kelvion for approximately $4 billion.

SLB reports in a news release that the acquisition is expected to boost its Data Center Solutions business, as thermal management technologies are key to cooling artificial-intelligence-related infrastructure. Data centers continue to pose numerous challenges, but SLB believes thermal management technology can help ease energy burdens.

“Data centers are becoming more sophisticated and energy-intensive, and customers are increasingly looking for partners that can optimize how critical systems work together across the facility and help bring new capacity online faster,” Gavin Rennick, president of SLB’s New Energy and Industrial business, said in the release. “Thermal management is central to that challenge, and this acquisition allows us to address it directly by delivering more integrated cooling solutions, accelerating innovation, optimizing thermal efficiency, and more directly embedding thermal management into our modular infrastructure offering.”

SLB will acquire Kelvion from funds managed by New York-based financial services group Apollo Global Management Inc. for approximately $3.4 billion in cash and will assume about $700 million of debt, according to the release. The deal is expected to close in Q1 of 2027.

SLB says the acquisition will help it dramatically scale revenue generated by the data center sector.

“This transaction accelerates our ambition to become an industrial technology partner to the data center industry and help customers address the growing infrastructure complexity required to scale AI,” Olivier Le Peuch, CEO of SLB, added in a news release. “Kelvion advances our path toward more integrated data center infrastructure solutions, expands our addressable market — more than doubling our revenue opportunity per gigawatt of delivered capacity — and allows us to scale both our offerings and the global reach of the business.”

SLB reports that it expects its Data Center Solutions business revenues to grow by more than 90 percent annually between 2024 and 2026.

If the acquisition is approved, the combined company will target revenue of $4.5 billion to $5 billion for its data center solutions business in 2028, according to the release.

Kelvion has previously served customers in AI infrastructure, energy system transformation and energy/ industrial markets. Its past work focuses on heat pumps, renewables, carbon capture and processing solutions for thermal management. According to the news release, Kelvion's data center revenue is expected to reach about $1.2 billion in 2026, and the sector is considered the company’s "largest and fastest-growing end market.

Tesla files plans for Houston-area solar plant & more top energy news

Trending news

Editor's note: Houston energy news in August was fueled by Tesla solar plans, a massive deal for ERock, and Halliburton Labs' newest cohort. Below are the five most-read EnergyCapitalHTX stories published during the second half of the month.

Telsa eyes Houston area for $10 billion solar manufacturing plant

Electric vehicle and clean energy company Tesla is considering building a new $10.1 billion solar cell manufacturing facility in Fort Bend County, according to documents filed with the Texas Comptroller’s Office. If approved, the plant, called Project Sun City, would be located on a 3,050-acre site off FM 762 and FM 1994 in Richmond, Texas. Tesla aims to finish construction in 2028, with the plant being operational by early 2029. Continue reading.

Houston’s data center capacity set to grow 80%, report says

Houston stands to benefit from constraints dogging data center markets elsewhere in Texas, a new report indicates. This comes against the backdrop of Texas surpassing Virginia as the country’s top state for data centers — and amid deepening opposition to these facilities. The report, published by commercial real estate services provider JLL, foresees Houston continuing to gain traction in data center development as occupants seek “scalable alternatives” to Texas markets experiencing supply-and-demand imbalances. Continue reading.

EV surge could shutter 40 refineries by 2040, Wood Mackenzie report warns

The rise of electric vehicles could spell trouble for Houston’s oil and gas sector, a new report suggests. But the oil and gas industry stands to benefit from potential sluggishness in U.S. adoption of EVs. If worldwide EV adoption rises as expected, global oil demand could fall by five million barrels per day by 2040, accelerating the closure of about 40 oil refineries, says the report, published by energy research and consulting firm Wood Mackenzie. The firm’s North American hub is in Houston. Continue reading.

ERock scores Anthropic deal, sees order backlog soar to $1.7B

Two months after its $400 million IPO, Houston-based ERock (NYSE: EROC) has landed a power-generator deal with AI powerhouse Anthropic, owner of the Claude platform. In its Q2 earnings report, ERock says it will provide equipment to Anthropic with a 470-megawatt capacity. ERock specializes in utility-grade, onsite microgrid power systems for data centers and other customers. The company previously did business as Enchanted Rock. Continue reading.

Halliburton Labs adds 3 energy, materials startups to Houston incubator

Three new companies have joined Halliburton Labs, the incubator for early-stage energy and hardtech startups run by Houston energy giant Halliburton. Halliburton Labs provides the emerging companies with mentorship, industry connections, laboratory access and other resources as they work toward commercialization. The latest companies to join the incubator focus on battery materials, resource recovery and gas separation solutions to address some of the "key bottlenecks in the energy and industrial landscape." Continue reading.