Balancing renewable energy growth and grid resilience requires a multifaceted approach. Photo via Getty Images

The global energy sector is on an exhilarating trajectory, teeming with promising technologies and unprecedented opportunities for a sustainable future. Yet, we find ourselves grappling with the challenges of reliability and affordability. As both a researcher in the field of power electronics and a consumer with bills to pay, I find myself experiencing mixed feelings.

As a researcher, I am thrilled by the progress we have achieved, particularly in energy conversion. The exponential growth of renewable energy technologies in Texas and beyond, including wind turbines and solar PV systems, is cause for celebration. These innovations, coupled with supportive policies, have facilitated widespread deployment and the potential to significantly reduce greenhouse gas emissions, combat climate change, and create a brighter future for our children.

While renewable energy resources can play a crucial role in maintaining the supply-demand balance of the grid, as they did by performing very well during the recent 2023 Texas heat wave, their intermittent and unpredictable nature can also pose a significant challenge to the power system. Unlike traditional power plants that operate continuously, wind turbines and solar PV systems rely on weather conditions for optimal performance. Fluctuations in wind speed, cloud cover, and sunlight intensity can lead to imbalances between energy supply and demand. This imbalance will worsen as the anticipated influx of electric vehicles and their charging needs come into play.

The volatility of renewables contributes to price fluctuations in the electricity market, which not only affects consumers but also raises concerns about grid resilience during extreme weather events. My electricity bill increased by over 20 percent compared to last year, partly caused by inflation, but mainly due to higher operational costs in the Texas electricity market.

Texas witnessed firsthand the consequences of a not-so-resilient grid through the severe power outages experienced during the "Polar Vortex" in February 2021. These outages not only disrupted lives but also disproportionately impacted vulnerable populations. During that time, my wife was expecting our second child. Enduring two nights in our frigid home without electricity or a fireplace was an ordeal that we navigated relatively unscathed. But it made me think of those less fortunate. These circumstances underscore the importance of establishing a robust, dependable and affordable electrical power system.

Balancing renewable energy growth and grid resilience requires a multifaceted approach:

  1. Investment in Infrastructure and Storage: It is crucial to strengthen the grid and ensure a reliable power supply. Upgrading transmission and distribution systems, integrating advanced monitoring and control technologies, and enhancing grid interconnections are essential. The Texas Legislature established the Powering Texas Forward Act, also known as Senate Bill 2627, a taxpayer-funded loan program, to encourage investment. While excluding certain renewable energy facilities and electric energy storage, it recognizes the need for a reliable grid. Hydrogen fuel cell generation facilities could be a potential solution, providing clean and stable energy while remaining eligible for the loan program. Additionally, implementing large-scale energy storage systems utilizing batteries and hydrogen storage technologies can mitigate renewable energy volatility by storing excess energy until needed. The Texas energy industry's push for these advances is a significant step in the right direction.
  2. Diversification of Energy Sources: While renewables play a crucial role in decarbonization, a mix of renewable sources, natural gas, and other low-carbon resources is necessary for the foreseeable future. Implementing carbon capture, utilization, and storage (CCUS) technologies across industries can mitigate associated climate impacts. The failure of Senate Bill 624, which would have had significant repercussions for wind and solar facilities, indicates that Texas legislators are genuinely concerned about clean, alternative sources of energy. However, a lot more needs to be done, including coordinated actions between federal, state, and international governments, to address the urgent issue of climate change. Texas can leverage its hydrocarbon/energy expertise to produce economical green and blue hydrogen, advanced fuel cells and hydrogen-based internal combustion engine technologies, enabling a smoother energy transition in terms of usage and jobs.
  3. Educating the General Public: It is critical to help people understand the necessity of modernizing our energy infrastructure; the benefits and opportunities it brings and the transformations we can expect. Institutions like the University of Houston play a crucial role in advancing clean energy technologies and educating the future energy workforce. The establishment of the Texas University Fund (TUF), with a budget of over $3 billion, through a constitutional amendment in November 2023, will be a pivotal step toward this goal.

When addressing the energy transformation and grid resilience dilemma, the real-life impact on human beings must be of prime importance. Our leaders should focus on a balanced approach considering grid infrastructure investment, diversification of energy sources, energy storage solutions, and public education. By adopting this multifaceted strategy, we can ensure a reliable, resilient, and affordable energy future.

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Harish Krishnamoorthy is an assistant professor of electrical and computer engineering and associate director of the Power Electronics, Microgrids and Subsea Electric Systems Center (PEMSEC) at the University of Houston.

Companies like ExxonMobil, NRG, and Shell play an important role in helping the world transition to renewable energy sources. Photo via htxenergytransition.org

3 Houston companies leading the way towards a low-carbon future

the view from heti

As the world population makes a jump towards more than 9 billion people by 2050, the race to net-zero is more important than ever. An increase in population means an increase in the demand for energy. With everything from greenhouse gases, pollution, carbon and nitrogen deposition putting a strain on planet Earth, community and business leaders are making commitments to advance the energy transition.

Companies like ExxonMobil, NRG, and Shell play an important role in helping the world transition to renewable energy sources. Here are three ways that these energy companies are working towards an energy abundant, low-carbon future.

NRG Energy

Headquarted in Houston, NRG Energy is the leading integrated power company in the U.S. In 2022, NRG introduced a new Sustainability and Resiliency Impact Study as part of Harris County’s Climate Action Plan to reduce the city’s carbon emissions by 40% by 2030. The initiative includes $34 million in park upgrades and is expected to save $54 million.

That same year, Evolve Houston, a nonprofit working to accelerate electric vehicle adoption within the Greater Houston area, launched an e-mobility microgrant initiative funded by Evolve Corporate Catalysts, General Motors and bp. With five founding members, among them being NRG Energy and Shell, the goal of the initiative is to improve regional air quality and reduce greenhouse gas emissions in the Greater Houston area.

At the top of 2023, Reliant Energy and NRG launched the Simple Solar Sell Back electricity plan for Texans aimed at providing solar panels to local homes for lower electricity bills.

Shell

On a mission to improve their own operations, Shell is addressing energy efficiency over time and capturing or offsetting unavoidable greenhouse gas emissions. Headquartered in London. Shell is on a mission to become a net-zero emissions energy business by 2050. In 2022, the British multinational company invested $6 million to create the Prairie View A&M Shell Nature-Based Solutions Research Program, funded through the company’s Projects & Technology organization dedicated to funding research to develop new technology solutions.

In March of 2022, Shell gifted the University of Houston $10 million to bolster the institution’s efforts to establish the Energy Transition Institute which focuses on the production and use of reliable, affordable and cleaner energy for all. The company also launched the residential power brand Shell Energy offering 100% renewable electricity plans.

ExxonMobil

ExxonMobil is one of the world’s largest publicly traded international oil and gas companies. In 2021, the multinational oil and gas corporation pledged to invest more than $15 million in solutions to lower greenhouse gas emissions initiatives across six years. As a part of their approach to improve air quality, ExxonMobil is working to:

  • Understand the composition and extent of our emissions
  • Meet or exceed environmental regulations
  • Reduce air emissions to minimize potential impacts on local communities
  • Monitor the science and health standards related to air quality

Throughout the years, plastics have become an essential component of products, packaging, construction, transportation, electronics and more. While plastics are durable, lightweight and cheap, they also emit 3.4% of global greenhouse gas emissions. Late last year, the major corporation announced the successful startup of one of the largest advanced recycling facilities in North America. Located in Baytown, Texas, the recycling facility uses proprietary technology to break down raw materials for new products and is expected to have nearly 1 billion pounds of annual advanced recycling capacity by the end of 2026.

According to their 2023 Advancing Climate Action Progress Report released early this year, the corporation plans to reduce greenhouse gas emissions through 2030.

From resolving power grid issues to developing renewable energy technologies, Houston energy companies are powering today to empower the future.

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This article originally ran on the Greater Houston Partnership's Houston Energy Transition Initiative blog. HETI exists to support Houston's future as an energy leader. For more information about the Houston Energy Transition Initiative, EnergyCapitalHTX's presenting sponsor, visit htxenergytransition.org.

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Hobby debuts solar canopy as airport system reaches new sustainability milestone

solar solutions

Houston's William P. Hobby Airport is generating its own clean energy.

Houston Aiports announced that Hobby's red garage is now home to a "solar canopy" that is producing energy at 100 percent capacity to power daily operations. The photovoltaic (PV) solar system generated more than 1.1 gigawatt-hours of electricity in testing, and is expected to produce up to 1 megawatt-hour now that it's operating at full power.

“This project is proof that sustainability can be practical, visible and directly tied to the passenger experience,” Jim Szczesniak, director of aviation for Houston Airports, said in a news release. “Passengers now park under a structure that shields their cars from the Texas sun while generating clean energy that keeps airport operations running efficiently, lowering overall peak demand electrical costs during the day and our carbon footprint. It’s a win for travelers, the city and the planet.”

The project was completed by Texas A&M Engineering Experiment Station (TEES) and CenterPoint Energy. It's part of Houston Airport's efforts to reduce carbon emissions by 40 percent over its 2019 baseline.

In a separate announcement, the airport system also shared that it recently reached Level 3 in the Airports Council International (ACI) Airport Carbon Accreditation program after reducing emissions by 19 percent in three years. This includes reductions at George Bush Intercontinental Airport (IAH), Hobby and Ellington Airport/Houston Spaceport.

The reductions have come from initiatives such as adding electric vehicles to airport fleets, upgrading airfield lighting with LED bulbs, adding smarter power systems to terminals, and improving IAH's central utility plant with more efficient equipment. Additionally, the expansion to Hobby's West Concourse and renovations at IAH Terminal B incorporate cleaner equipment and technology.

According to Houston Airports, from 2019 to 2023:

  • IAH reduced emissions by 17 percent
  • Hobby reduced emissions by 32 percent
  • Ellington Airport reduced emissions by 4 percent

"I see firsthand how vital it is to link infrastructure with sustainability,” Houston City Council Member Twila Carter, chair of the council’s Resilience Committee, said in the release. “Reducing carbon emissions at our airports isn’t just about cleaner travel — it’s about smarter planning, safer communities and building a Houston that can thrive for generations to come.”

Houston Methodist leader on the push for sustainable health care and new local event

Q&A

Every industry can play a role in the energy transition, and Houston Methodist is leading the charge in the health care sector.

Culminating at this week’s inaugural Green ICU Conference, part of Houston Energy and Climate Startup Week, the health care system has spent the last three years taking a closer look at its environmental footprint—and showing other hospital systems and medical organizations how they too can make simple changes to reduce emissions.

The event, held tomorrow, Sept. 17, at TMC Helix Park, will bring together health care professionals, industry leaders, policymakers and innovators to explore solutions for building a more sustainable healthcare system.

In an interview with EnergyCapital, Dr. Faisal N. Masud, medical director of critical care at Houston Methodist and a champion for sustainability efforts across the system, shares the inspiration behind the event and what attendees can expect to take away.

Tell us about how the Green ICU Conference came to be.

Houston Methodist’s inaugural Green ICU conference is about three years in the making. It originated because Houston Methodist recognized the significant impact health care has on sustainability and the lack of similar initiatives in the U.S.

The Center for Critical Care at Houston Methodist launched a sustainability-focused ICU initiative, published a roadmap and became involved in international efforts to develop guidelines that many other organizations now use. Our work led to the creation of the first Green ICU Collaborative in the country, and the Green ICU Conference was established to share best practices and address the global impact of critical care on the environment.

What were some of the biggest takeaways from the collaborative, and how are they represented in this new event?

Through the Green ICU Collaborative, we’ve seen that health care professionals can make a significant impact on sustainability through simple, practical changes, and many solutions can be implemented without major costs or compromising patient care. Additionally, there’s a strong link between environmental stewardship and patient safety and quality. These lessons will be represented in the new Green ICU Conference by showcasing easy-to-adopt best practices, emphasizing the importance of sustainability in daily health care operations, and fostering a sense of shared responsibility among attendees to improve both patient outcomes and environmental impact.

Why are ICUs considered to be such carbon hot spots?

ICUs are considered carbon hot spots because they care for the sickest patients, requiring intensive therapies, numerous medications and a large amount of equipment, such as ventilators and pumps. This makes them the most resource- and energy-intensive areas in a hospital. A single day in the ICU can have a greenhouse gas impact equivalent to driving a car 1,000 kilometers.

The U.S. health care sector is responsible for approximately 8.5 percent of greenhouse gas emissions, and hospitals are the second-most energy-intensive commercial buildings in the country. With the Texas Medical Center being in the heart of Houston, it’s critical that health care organizations play a role in this area.

That’s why the Center for Critical Care launched a system-wide Green ICU Initiative with the Houston Methodist Office of Sustainability to help reduce our carbon impact and waste while continuing to provide unparalleled patient care. Innovation is part of our culture, and that extends into our sustainability efforts. Houston Methodist’s Green ICU initiative is the first-of-its-kind in the U.S.

What efforts has Houston Methodist taken to cut emissions?

The first step to cutting emissions is measuring an organization’s carbon footprint to determine the best path forward. Houston Methodist’s Office of Sustainability has aggregated two years of baseline emissions data pending third-party validation. The hospital has taken several steps to cut emissions, including implementing composting programs, installing solar panels, improving energy utilization and participating in global plastic recycling initiatives. These efforts are part of a broader commitment led by our Office of Sustainability to reduce the hospital’s environmental footprint.

Tell us a little more about the event. Who should attend? What do you expect to be some of the highlights?

The Green ICU Conference, taking place during Houston Energy and Climate Week, is focused on health care sustainability, bringing together health care professionals, engineers, experts and anyone interested in reducing health care’s environmental impact. With participants and speakers from six countries, the conference brings together leading experts who aim to raise awareness, share best practices and offer practical, easy-to-adopt solutions for making health care more sustainable.

Highlights include perspectives from leading voices in health care sustainability, real-world examples of successful sustainability initiatives and opportunities for networking and collaboration. Anyone interested in health care, sustainability,or making a positive impact in their community should consider attending.

And, because of increasing interest, we’ve opened up the opportunity for attendees to join virtually at no cost or in person.

What do you hope attendees take away? What are your major goals for the event?

The main goals of hosting the Green ICU Conference for the first time are to raise awareness about the environmental impact of health care; engage and empower attendees to implement easy, practical sustainability solutions; and foster a sense of shared community and responsibility.

I hope attendees leave the event feeling motivated and equipped to make meaningful changes in their own practices, whether that’s improving patient care, supporting their colleagues, or leaving their organization and environment in a better place for future generations.

Texas House Democrats urge Trump administration to restore $250M solar grant

solar grants

Eight Democratic members of the U.S. House from Texas, including two from Houston, are calling on the Trump administration to restore a nearly $250 million solar energy grant for Texas that’s being slashed by the U.S. Environmental Protection Agency (EPA).

In a letter to Lee Zeldin, head of the EPA, and Russell Vought, director of the federal Office of Management and Budget (OMB), the House members urged the two officials to reinstate the nearly $250 million grant, which was awarded to Texas under the $7 billion Biden-era Solar for All program. The Texas grant was designed to assist 28,000 low-income households in installing solar panels, aiming to reduce their energy bills.

“This administration has improperly withheld billions in congressionally appropriated funding that was intended to benefit everyday Americans,” the letter stated.

The letter claimed that numerous court rulings have determined the EPA cannot repeal already allocated funding.

“Congress made a commitment to families, small businesses, and communities across this country to lower their utility bills and reduce harmful pollution through investments in clean energy. The Solar for All program was part of that commitment, and the EPA’s actions to rescind this funding effectively undermine that congressional intent,” the House members wrote.

The six House members who signed the letter are:

  • U.S. Rep. Sylvia Garcia of Houston
  • U.S. Rep. Al Green of Houston
  • U.S. Rep. Greg Casar of Austin
  • U.S. Rep. Jasmine Crockett of Dallas
  • U.S. Rep. Lloyd Doggett of Austin
  • U.S. Rep. Julie Johnson of Dallas
  • U.S. Rep. Marc Veasey of Fort Worth

The nearly $250 million grant was awarded last year to the Harris County-led Texas Solar for All Coalition.

In a post on the X social media platform, Zeldin said the recently passed “One Big Beautiful Bill” killed the Greenhouse Gas Reduction Fund, which would have financed the $7 billion Solar for All program.

“The bottom line is this: EPA no longer has the statutory authority to administer the program or the appropriated funds to keep this boondoggle alive,” Zeldin said.