Choose Texas Power has ranked its top electric providers, most affordable green energy providers and more. Photo via unspalsh.

Choose Texas Power—a marketplace that allows users to view and compare electricity plans, providers and rates in the state—has compiled its Best Texas Electric Companies report.

The data-driven list considers pricing, providers and consumer trends, and rates for companies listed on its marketplace. The report was updated earlier this month.

Choose Texas Power rated the Texas energy companies using its proprietary data and online reviews, and gave each company a score from zero to five based on customer service, accessibility and plan variety.

Houston-based Express Energy tied for first place on the list with DFW-based TXU Energy, 4Change Energy and Veteran Energy. Eight other Houston-area companies made the 10. The companies all received a rating of 5 out of 5.

The full list includes:

  • Houston-based Gexa Energy (4.9)
  • Irving-based TriEagle Energy (4.9)
  • Houston-based Frontier Utilities (4.8)
  • Spring-based Atlantex Power (4.6)
  • Houston-based Rhythm Energy (4.6)
  • Houston-based Green Mountain Energy (4.5)
  • Houston-based Reliant Energy (4.3)
  • Houston-based Direct Energy (4.2)
  • Houston-based APG&E Energy (4.2)
  • Houston-based Discount Power (4)
  • Plano-based Cirro Energy (4)
  • Fort Worth-based Payless Power (3.9)

Choose Texas Power also broke down the best companies for specific customer needs.

  • Best for affordable green energy: Gexa Energy
  • Best for 100% renewable energy: Rhythm Energy
  • Green energy plans for low usage: Green Mountain Energy
  • Best for smart home upgrades: Discount Power
  • Best for straightforward energy plans: TriEagle Energy
  • Best for plan variety: TXU Energy
  • Best for simple contract terms: Express Energy

Find the full report here.

PJ Popovic, founder and CEO of Houston-based Rhythm Energy, which has acquired Inspire Clean Energy. Photo courtesy of Rhythm

Houston's Rhythm Energy expands nationally with clean power acquisition

power deal

Houston-based Rhythm Energy Inc. has acquired Inspire Clean Energy for an undisclosed amount. The deal allows Rhythm to immediately scale outside of Texas and into the Northeast, Midwest and mid-Atlantic regions, according to a release from the company.

Inspire offers subscription-based renewable electricity plans to customers in Pennsylvania, New York, New Jersey, Massachusetts, Ohio, Delaware, Illinois, Maryland, and Washington, D.C. By combining forces, Rhythm will now be one of the largest independent green-energy retailers in the country.

“Adding Inspire to the Rhythm family gives us the geographic reach to serve millions of new customers with the highly rated customer experience Texans already enjoy,” PJ Popovic, CEO of Rhythm, said in the release. “Together we become one of the largest independent green-energy retailers in the country and can roll out innovations like our PowerShift Time-of-Use plan and device-enabled demand-response programs that put customers fully in control of their energy costs.”

Rhythm was founded by Popovic in 2020 and offers 100 percent renewable energy plans using solar power, wind power and other renewable power sources.

In addition to scaling geographically, the acquisition will "(marry) Rhythm's data-driven technology with Inspire's successful subscription model." Rhythm also plans to upgrade its digital tools and provide more advanced services to help lower clean energy costs, according to the release.

Popovic spoke with EnergyCapital in 2023 about where he thinks renewables fit into Texas’s energy consumption. Read more here.

At last year's awards program, Cemvita Factory's co-founders, Tara and Moji Karimi, accepted the award for the Green Impact Business category. This year, Moji Karimi served as a judge

18 Houston energy startups named finalists for innovation awards program

companies to watch

The 2023 Houston Innovation Awards announced its 52 finalists — a large portion of which are promising energy transition startups.

The awards program — hosted by EnergyCapital's sister site, InnovationMap, and Houston Exponential — will name its winners on November 8 at the Houston Innovation Awards. The program was established to honor the best and brightest companies and individuals from the city's innovation community.

The following startups, which all have an energy transition element to their business, received a finalist position in one or two categories.

Click here to secure your tickets to see who wins.

  • ALLY Energy, helping energy companies and climate startups find, develop, and retain great talent, scored two finalist positions — one in the Female-Owned Business category and the other in the Social Impact Business category.
  • Eden Grow Systems, next generation farming technologies, is a finalist in the People's Choice: Startup of the Year category.
  • Feelit Technologies, nanotechnology for preventive maintenance to eliminate leaks, fires and explosions, increase safety and reduce downtime, is a finalist in the Female-Owned Business category and the People's Choice: Startup of the Year category.
  • Fervo Energy, leveraging proven oil and gas drilling technology to deliver 24/7 carbon-free geothermal energy, scored two finalist positions — one in the Sustainability Business category and the other in the People's Choice: Startup of the Year category.
  • FluxWorks, making frictionless gearboxes for missions in any environment, is a finalist in the Hardtech Business category.
  • Helix Earth Technologies, decarbonizing the built environment and heavy industry, is a finalist in the Hardtech Business category.
  • INOVUES, re-energizing building facades through its non-invasive window retrofit innovations, making building smarter, greener, and healthier for a better and sustainable future, was named a finalist in the Sustainability Business category.
  • Kanin Energy, helping heavy industry monetize their waste heat and decarbonize their operations, was named a finalist in the BIPOC-Owned Business and the Sustainability Business categories.
  • Mars Materials, developing a carbon-negative pathway for carbon fiber and acrylamide production using CO2 and biomass as raw materials, is a finalist in the BIPOC-Owned Business category.
  • Molecule, an energy/commodity trading risk management software that provides users with an efficient, reliable, responsive platform for managing trade risk, is a finalist in the Digital Solutions Business category.
  • Rhythm Energy, 100 percent renewable electricity service for residential customers in Texas, is a finalist in the People's Choice: Startup of the Year category.
  • Sage Geosystems, a cost-effective geothermal baseload energy solution company, also innovating underground energy storage solutions, was named a finalist in the Sustainability Business category.
  • Solugen, decarbonizing the chemical industry, is a finalist in the Hardtech Business category.
  • Square Robot, applying robotic technology to eliminate the need to put people into dangerous enclosed spaces and eliminate taking tanks out of service, is a finalist in the Hardtech Business category.
  • Syzygy Plasmonics, a deep decarbonization company that builds chemical reactors designed to use light instead of combustion to produce valuable chemicals like hydrogen and sustainable fuels, is a finalist in the Hardtech Business category.
  • Tierra Climate, decarbonizing the power grid faster by helping grid-scale batteries monetize their environmental benefits and change their operational behavior to abate more carbon, was named a finalist in the Sustainability Business category.
  • Utility Global, a technology company converting a range of waste gases into sustainable hydrogen and syngas, was named a finalist in the Sustainability Business category.
  • Venus Aerospace, a hypersonics company on track to fly reusable hypersonic flight platforms by 2024, is a finalist in the Hardtech Business category.

Additionally, two energy companies were named to the Corporate of the Year category, which honors corporations that supports startups and/or the Houston innovation community. Aramco Ventures and Chevron Technology Ventures are two of the four finalists in this category.

Lastly, Jason Ethier, co-founder of Lambda Catalyzer and host of the Energy Tech Startups podcast, and Kendrick Alridge, senior manager of community at Greentown Labs, scored finalist positions in the Ecosystem Builder category, as individuals who have acted as leaders in developing Houston’s startup ecosystem.

Click here to see the full list of finalists.

PJ Popovic of Houston-based Rhythm Energy looks back on summer heatwave trends. Photo via Shutterstock

Houston expert looks at wholesale pricing trends occurring this summer

guest column

This summer’s heatwave had a lot of Texans feeling uncomfortable, and it was not just the sweltering triple-digit temperatures, and even higher heat indexes, that had us sweating. With much of the state hitting over 100 degrees for weeks, air conditioners were working overtime to keep homes and businesses cool. That added load, coupled with general demand growth, put a heavy burden on the Texas power grid — and that puts the state in a precarious position.

We all remember Uri in February 2021, when an inch-thick coat of ice hampered power companies' ability to generate power, leading to widespread and lasting power outages across the state. The recent heat wave, however, was different. This past summer, the concern for Texas and ERCOT (the Electric Reliability Council of Texas) was not whether generation would fail, but whether generation capacity could keep pace with peak demand. And what would be the wholesale electricity price to ensure that it did.

The generation mix

As robust as our electricity grid is, on any given day the balance between power supply and demand remains fairly tenuous. In its summer Seasonal Assessment of Resource Adequacy, ERCOT projected its power-generation capacity at 97,000 MW. However, that daily capacity number can be misleading.

As Texas’ generation mix leans to a greater degree toward renewable power and we retire more coal and natural gas fired generation plants, our generation output becomes less predictable. Operators can practically flip a switch to turn on fossil fuel generation plants and quickly dispatch its power. Renewable generation, on the other hand, is intermittent and its output by no means guaranteed. While the state’s current combined wind and solar generation can potentially deliver up to 30,000 megawatts, if the right weather conditions are not there, neither is the power.

Meanwhile, the demand for power in Texas has increased dramatically. In recent years, we have seen significant population growth, electrification as well as new business expansion throughout the state. Some of the businesses moving here draw huge loads of power from the grid — think about the companies mining digital currency or Elon Musk’s SpaceX facilities in Central Texas, just to name a few. A considerable demand curve increase occurring simultaneously with the move to more renewable generation challenges the delicate balance of the grid.

Trends and lessons learned from the summer’s wholesale electricity pricing

ERCOT manages the flow of electricity across the state of Texas. It also oversees the wholesale bulk power market whereby generators are paid primarily for the electricity they supply to the grid. To incentivize the development of future generating capacity, ERCOT employs scarcity pricing — that means that commodity prices escalate dramatically as supply becomes constrained.

This summer, ERCOT faced unprecedented demand with daily electricity usage frequently nearing generation capacity limits. Consequently, electricity prices were notably volatile, often skyrocketing exponentially.

ERCOT employs a complex series of pricing mechanisms to establish its real-time price for each megawatt. A deep dive analysis (INSERT LINK) found that the Locational Margin Prices, or LMP, were significantly higher than previous years, even when reserve generation capacities were robust and fuel prices were similar to or lower than prior years.

So, what contributed to the higher than usual prices? Certainly, changes to ERCOT operations, market design tweaks, and transmission constraints contributed, but market prices were most driven by generators’ offer pricing curves.

Now, more than four months removed from the start of the heat wave in June, we can see how different various technologies priced their offerings. The data suggests that a segment of resources, notably battery storage, set their offer prices near or at the system-wide offer price cap. Given the anticipated rise of batteries as the primary dispatchable resource within the grid in coming years, this pricing behavior warrants closer scrutiny.

Offer pricing curves appear to have created a semblance of shortage pricing, evident in the heightened LMPs, even when reserve capacities were not especially scarce. This would suggest that a significant portion of the dispatchable capacity integrated into ERCOT was priced at levels typically seen only in grid emergency conditions

Key questions

Why are the recently added dispatchable resources garnering such high offer prices? Are there operational hurdles in integrating and dispatching batteries, challenges in market design, inherent limitations of batteries on the grid, or other factors contributing to these high offer prices from battery resources? Given that batteries are poised to play a central role in the transition to renewable energy sources, answering these questions will be key.

The current pricing trends in the ERCOT market, if sustained, could lead to increased electricity rates and/or increased price volatility for end-users, underscoring the importance of monitoring and addressing these market dynamics.

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PJ Popovic is the CEO of Houston-based Rhythm Energy.

The University of Houston's football season is starting off in a new conference — and with a new renewable energy partner. Photo via uh.edu

University plugs into Houston renewables co. as official athletics energy provider

go coogs

This college football season brings a lot of newness for the University of Houston: A new conference, following the athletic program's July transition to the Big 12. And a new official energy provider that is 100 percent renewable.

UH Athletics announced last week that Houston-based Rhythm Energy has signed on to be the official energy company of the program. The company will have a presence on signage at all sports venues, a strong digital presence across UH Athletics platforms; and Cougars’ basketball, baseball, softball, soccer, and track and field home events.

Rhythm Energy will also roll out The Go Coogs 12 Plan in time for football season, which will be an exclusive electricity plan to help UH faculty, alumni, students and fans go green.

“As a proud UH alumni, I am so pleased Rhythm Energy has become the Official Energy Company for my alma mater,” PJ Popovic, CEO of Rhythm Energy, said in a statement. “UH is hands down one of the top educational and athletic institutions in the nation, and I’m forever grateful for the knowledge I gained there, which allowed me to start my own renewable energy company. With UH joining the Big 12 Conference, we’re inspired by their success, achievements, and growth—something we strive for at Rhythm Energy every day.”

UH Athletics oversees 17 sport programs — seven on the men's side, including baseball, basketball, cross country, football, golf, and track and field, and 10 on the women's side, including basketball, cross country, golf, soccer, softball, swimming and diving, tennis, track and field, and volleyball.

Popovic founded Rhythm Energy in 2021. The company offers 100 percent renewable energy plans for Texas residents, using solar power, wind power and other renewable power sources.

The founder spoke with EnergyCapital last month about where he thinks renewables fit into Texas’ energy consumption and grid reliability issues and the shifting public opinion towards renewables.

"There is still a lot (speech) that is not necessarily painting renewables correctly," he tells EnergyCapital.

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What to expect from the 2025 Greentown Labs' Climatetech Summit Houston

where to be

Greentown Labs' Climatetech Summit Houston will take place next Tuesday, Nov. 4, bringing together philanthropists, executives and innovators in the energy transition space.

John Arnold, co-founder and co-chair of Arnold Ventures, will participate in the keynote fireside chat with Greentown CEO Georgina Campbell Flatter. The conversation will explore "top priorities and opportunities in energy innovation today—with a special focus on how these dynamics are playing out in Houston," according to Greentown.

Other highlights will include:

  • Welcome remarks from Houston Mayor John Whitmire
  • A course led by TEX-E Executive Director Sandy Guitar
  • A philanthropy panel featuring Greentown Labs new Head of Philanthropy Stacey Harris
  • The Energy Jobs of the Future, featuring Sameer Bandhu, GE Vernova’s managing director, ventures and licensing
  • An Energy-transition Roadmap, featuring Monica Krishnan, Hermann Lebit and Bobby Tudor
  • What is Climatetech? featuring Kyle Judah, Emerson Denka Wangdi, Laureen Meroueh and Head of Greentown Houston Lawson Gow

Five Greentown Labs startups will also present their pitches at the event. Expect to hear from:

  • MCatalysis Inc. CEO, President, and Founder Michael D. Irwin. Dallas-based MCatalysis develops novel, high-efficiency industrial microwave processes and catalysts to produce low-cost, clean synthetic fuels and chemicals from waste carbon resources.
  • Pike Robotics CEO and co-founder Connor Crawford. Austin-based Pike Robotics provides next-gen robotic solutions for in-service inspection of floating roof storage tanks.
  • Helix Earth CEO and co-founder Rawand Rasheed. Houston-based Helix Earth retrofits commercial HVAC systems to improve energy efficiency.
  • 10DQ CEO Steven Reece. Greentown Boston member 10DQ has developed its Redox Loop Battery, which uses novel, water-based electrolytes to store energy in dense, low-cost, earth-abundant battery materials.
  • Janta Power CEO Mohammed Njie. Dallas-based Janta Power is developing 3D solar towers.

In addition to the startup pitches, attendees will also be able to meet founders and Greentown members during the afternoon startup showcase. A networking reception at Axelrad Houston follows. A separate ticket offers admission to the showcase and networking event only.

See the full agenda here.

California company launches Tesla Megapack battery project in Houston area

power on

Oakland, California-based Nightpeak Energy announced earlier this month that its 150-megawatt battery storage project in Brazoria County, known as Bocanova Power, is now operating to address Houston’s peak capacity needs.

“This battery storage project will enhance grid reliability in the Alvin area while continuing to support integrating renewable energy,” Cary Perrin, president and CEO of the Northern Brazoria County Chamber of Commerce, said in a news release. “I believe we need energy storage now more than ever for its pivotal role in reducing strain on the grid while meeting fast-growing power demand in Texas and Brazoria County."

The project reached commercial operation in August, according to the release. The project utilizes Tesla's Megapack 2 XL battery storage system, and the facility operates under a long-term power purchase agreement with an undisclosed “investment-grade power purchaser.”

“Bocanova Power demonstrates the speed at which Nightpeak Energy is overcoming complex challenges to energize projects that support America's growing need for affordable, reliable, and secure energy,” Paris Hays, co-founder and CEO/CDO of Nightpeak Energy, added in the news release. “Unprecedented AI data center and manufacturing growth has only accelerated the need for these resources.”

Hays added in the release that the company has plans for more energy infrastructure projects in Texas and in the Western U.S.

Nightpeak Energy develops, owns and operates power plants that support the growing capacity needs of a decarbonized grid. It also owns and operates 240 MW of battery storage and natural gas generation facilities.

The company was founded in 2022 and backed by equity funding of up to $200 million from Dallas-based investment firm Energy Spectrum Capital.

Texas ranks low on most energy-efficient states report

by the numbers

Texas has room to improve when it comes to energy efficiency, recent data from WalletHub shows.

The personal finance website ranked Texas at No. 35 on the latest Most & Least Energy-Efficient States list. Texas improved by one spot on the 2025 report, after coming in at No. 36 last year.

The report measured and ranked the efficiency of auto energy and home energy consumption in the 48 U.S. mainland states based on data from the U.S. Census Bureau, National Climatic Data Center, U.S. Energy Information Administration and the U.S. Department of Transportation – Federal Highway Administration.

Texas earned an overall score of 50.60. It was ranked No. 27 for home energy efficiency and No. 41 for auto efficiency. By comparison, No. 1-ranked Vermont earned a score of 85.30, ranking No. 2 for home energy and No. 6 for out energy.

The top five overall states included:

  • No. 1 Vermont
  • No. 2 California
  • No. 3 Washington
  • No. 4 New York
  • No. 5 Massachusetts

South Dakota earned the top rank for home energy efficiency, and Massachusetts earned the top rank for energy efficiency.

“Energy efficiency doesn’t just help save the planet – it also helps save you money by lowering the amount of electricity, gas, oil or other types of energy you need to consume. While there are some steps you can take to become more energy-efficient on your own, living in the right area can give you a big boost," WalletHub analyst Chip Lupo said in the report. "For example, certain states have much better public transportation systems that minimize your need to drive, at least in big cities. Some places also have better-constructed buildings that retain heat better during the winter or stay cooler during the summer.”

According to the report, some progress is being made in increasing energy efficiency across the country. The U.S. Energy Information Administration expects 26 percent of electricity generation in 2026 will come from renewables. A number of them are being developed in the Houston area, including recent announcements like the Pleasure Island Power Collective in Port Arthur.

Still, Houston earned an abysmal ranking on WalletHub's greenest cities in the U.S. report earlier this year, coming in at No. 99 out of 100. Read more here.