Expert: Solar energy is a necessary solution to summer power grid insecurity in Texas

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It's only going to get hotter in Houston — can the grid take it? Switching to solar is a way to avoid having to worry about that question, says this expert. Photo courtesy of Freedom Solar

You know the old adage: "If you don't like the weather here, wait five minutes." Texas weather is not just unpredictable; it can be downright bipolar. I don't need to remind you of the knockout punch Old Man Winter delivered last February, even to parts of the state where hard freezes are few and a "snow event" usually amounts to a dusting. It will be a long time before Texans forget spending a week without power in single-digit temperatures — huddled together in their homes under mountains of blankets — with no heat, no way to bathe or cook, and no escape.

The massive power outages of Valentine's Day week spurred public outrage and a full-throated demand that state leaders take decisive steps to make Texas' electric grid sustainable. The legislature was only a month into its 140-day regular session at the time, but still failed to do anything substantial to fix the grid before adjourning May 31.

Now — well ahead of the hottest days of summer — Texans are wondering why the Electric Reliability Council of Texas (ERCOT) is already asking them to set their thermostats at 78 degrees, turn off lights, avoid using their ovens or doing laundry in the evenings, and otherwise conserve energy. It was ERCOT's second such call since April. Some local energy companies have recommended setting thermostats even higher, and local rolling blackouts have continued in Dallas, Houston, and elsewhere in the state throughout the months of June and July. That may be fine for some people during Texas' scorching summer heat, but for others, it is untenable. For the elderly or infirmed, it could be deadly.

Experts have warned the grid is unreliable, the system is strained, and homeowners and businesses hover at near-constant risk for blackouts, unless the state does more to weatherize the grid, bring more generators back online, and provide more emergency backup power. Meanwhile, when temperatures hit triple digits and stay there for days, the blackout risks will skyrocket.

But there is one obvious solution to grid instability that will enable Texans to keep their homes and businesses comfortably cool during the hot summer months ahead, without setting their thermostats higher or timing their activities to government guidelines. Widespread distributed generation of solar energy, instead of the current emphasis on remotely located utility-scale solar, would provide a highly effective, long-term solution to decreasing strain on the ERCOT power grid.

That means dramatically increasing the number of solar installations on residential and commercial properties statewide. Consider the distance and infrastructure required to bring power from a West Texas solar farm to the state's big cities. That's not only a costly undertaking, it exposes the system to many vulnerabilities along the way. It makes more sense to install solar panels on-site, behind the meter, and pair them with storage for backup power.

The logic is simple: Increasing the number of homes and businesses with on-site solar power would decrease the burden on the grid and help insulate it against failure. Further, by installing home batteries such as the Tesla Powerwall for backup power, residents can control their own power supply and ensure its reliability, even during extreme weather events—summer or winter.

These technologies are cost-efficient and readily available today. A few months ago, Congress extended the 26 percent federal solar investment tax credit (ITC) — which also applies to batteries paired with solar — through 2021 (dropping to 22 percent in 2022), making the move to solar and backup power even more sensible.

State leaders have tried to lay the blame for last winter's power outages on renewable energy. But failures of natural gas power plants, not renewable generators, caused the grid failures that led to those deadly blackouts.

On July 6, months after declaring "everything that needed to be done was done to fix the power grid in Texas," Governor Abbott ordered the PUC to take steps to overhaul the state's electric system. But the solutions he's offering—like constructing new coal, gas, and nuclear power plants and building their transmission lines faster—are giveaways to the fossil fuel industry and will take a long time to complete. Texas needs reliable power NOW.

Meanwhile, state officials are increasingly emphasizing conserving power during extreme temperatures, which suggests they don't even believe their assurances that no more blackouts lie ahead. On-site solar power is the obvious solution, both today and for the long-term health of our rapidly growing state and rapidly warming planet.

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Bret Biggart is CEO of Austin-based Freedom Solar, the leading turnkey solar energy installer in Texas, providing high-quality, cost-effective, reliable solar solutions for the residential and commercial markets.

In light of the devastation caused by the recent winter storm that hit Texas, it's time for the state to invest in solar, says this expert. Photo courtesy of Freedom Solar

Expert: Texas must grow its solar infrastructure to prevent more weather-related power outages

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As Texans begin to recover from last month's once-in-a-century winter storm, many wonder how the state — an icon of the oil and gas industry and home to Houston, "the energy capital of the world" — was thrust into darkness for days on end.

When the Texas power grid began failing in communities statewide, many in positions of power quickly laid the blame at the feet of the renewables industry. But with solar and wind power accounting for only 28.6 percent of the state's energy supply, clearly, renewables were not the sole, or even primary, culprits responsible for the massive outages. The facts point to a much more complex set of circumstances — a series of extreme weather events, one after the other; a burgeoning population; and a grossly unprepared system — all of which combined to cause an increasingly strained, aging grid to fail spectacularly.

The events of last month were a not-so-subtle demonstration of the inadequacy of our current power structure, but what does that mean for the future of Texas energy? Obviously, Texas leaders and the Electric Reliability Council of Texas (ERCOT) must begin updating the state's grid with the resources necessary to sustain the rapidly increasing demand for reliable power. Undoubtedly, that will cause a hike in consumer energy costs, especially in deregulated markets like Houston, where profitability and demand drive prices.

Widespread distributed generation of solar energy—rather than the state's current emphasis on utility-scale solar generation — would provide a highly effective, long-term solution to minimizing strain on Texas' power grid. This means dramatically increasing the number of local solar installations on residential and commercial properties statewide. Think about it: The distance and infrastructure required to bring power from West Texas solar farms to the state's urban centers leaves too much room for vulnerabilities. Solar makes more sense on-site, behind the meter, and paired with storage for backup power.

Simply stated, the more businesses and residences who have solar power, the less burden on the grid and the more insulated the grid is against failure. Further, by installing batteries such as the Tesla Powerwall for backup power, solar customers control their own power supply and ensure its reliability, even during extreme weather events like the one we just experienced. These batteries are mass market-ready, reliable and cost-efficient today.

With the increasing volatility of the Texas energy market, home and business owners are finding solar is a more appealing investment than ever before.

The amount of solar power required to power a home or business depends on the amount of energy the owner seeks to offset. For example, a solar array geared toward reducing an energy bill will be significantly smaller than a system designed to take the customer off the grid entirely. Backup power solutions are similarly dependent, with options ranging from a single battery capable of powering small household appliances to a bank of several batteries or a generator able to power a whole household or commercial space. Either way, the combination of solar power and backup provides reliability many Texans wished they had during the record freeze we just endured.

The public outcry over the massive power outages has laid a mandate at the feet of state leaders: Do what is necessary to make the power grid sustainable. At the same time, utilities statewide are looking at what they can do to increase reliability in their own communities. Deregulated energy prices will only rise because of continuing population growth and the need to update grid infrastructure.

No matter how you look at it, enlarging the state's independent solar infrastructure is a reliable way to protect businesses and homeowners alike against surging energy costs and weather-related power outages.

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Bret Biggart is the CEO of Texas-based Freedom Solar.

With stay-at-home mandates across the state, renewable energy helps reduce the strain of the grid. Photo courtesy of Freedom Solar

Now is the time for Houstonians to invest in solar energy, says expert

Guest column

Largely due to the growing popularity and falling prices of solar energy in Texas, including incentives at the federal, state, and local level, the number of solar panel installations continues to trend upward throughout the state and especially in Houston.

For the third year in a row, Houston was named the top municipal user of green energy in the nation by the United States EPA, using more than 1 billion kilowatt hours (kWh) of solar and wind power. With 92 percent of the city of Houston's energy coming from green power, solar has solidified its place in the Houston energy market.

With solar panel system prices dropping 38 percent over the past five years, solar power is also growing in popularity among individual homeowners and business owners who want to take control of their energy costs and become more self-sufficient.

As the recent COVID-19 pandemic continues to shake industries across the nation, Freedom Solar is working tirelessly to keep our team safe, healthy, and employed. Solar installers provide critical electric generation infrastructure that helps us reduce the strain on the ERCOT grid, especially with higher electricity usage as people stay at home under local shelter in place orders and as we head into the warmer spring and summer months.

The health and safety of our customers and employees is our top priority, and as an essential business we are following strict operating protocols that are in line with the guidance provided by local, state, and federal authorities. Although these challenging times often result in a pause in investments, I argue that for customers who have been considering investing in solar, now is still the time to do so.

During these tumultuous times, for many home and business owners, investing in solar energy remains appealing as a smart and stable financial decision. A solar power system is an income-producing asset that will generate a stable return for 25 or more years. The ability to finance that investment without putting cash down upfront allows customers to get the financial benefits of solar now while keeping their money in the securities markets until they recover from the current economic downturn.

Due to the COVID-19 pandemic, overseas manufacturing has been disrupted for months, resulting in shortages in the global supply chain across many industries. These shortages could increase the price of solar panels, inverters and related equipment if US warehouses run low on inventory. For customers who have long been on the fence about investing in solar, I would urge them to reevaluate the numbers now in anticipation of potential price increases in the coming months in the wake of COVID-19.

Additional macro trends and current events continue to demonstrate the value of home solar power. According to a 2020 study by the financial institution Fundera, the number of regular telecommuting employees has grown by 115% since 2005. As more and more people are required to work remotely, especially during the current and indefinite "Stay in Place" orders, electricity usage and utilities have inevitably increased for many households.

Investing in solar for your home can help offset increased utility costs, especially while working remotely and in the rapidly approaching summer months. Current events may be accelerating the long-term trend, and even when the immediate crisis is over, the way many people work could be transformed.

As the energy industry continues to evolve, the reasons why Houston customers choose to invest in solar power evolve and grow. Going solar is no longer solely a testament to your sustainability practices but also a sound long-term investment. The federal solar tax credit — also known as the investment tax credit (ITC) — allows homeowners and businesses to deduct a significant percentage of the cost of installing solar from their federal income taxes.

The credit remains at 26 percent for the remainder of 2020 but will decrease to 22 percent in 2021 and then in 2022 will drop to 10 percent for businesses and will go away entirely for homeowners. With more than 90 percent of Houston's energy consumption deriving from green power, it is clear that solar is here to stay.

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Bret Biggart is the CEO of Texas-based Freedom Solar.

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Houston startups win NASA funding for space tech projects

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Three Houston startups were granted awards from NASA this month to develop new technologies for the space agency.

The companies are among nearly 300 recipients that received a total agency investment of $44.85 million through the Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) Phase I grant programs, according to NASA.

Each selected company will receive $150,000 and, based on their progress, will be eligible to submit proposals for up to $850,000 in Phase II funding to develop prototypes.

The SBIR program lasts for six months and contracts small businesses. The Houston NASA 2025 SBIR awardees include:

Solidec Inc.

  • Principal investigator: Yang Xia
  • Proposal: Highly reliable and energy-efficient electrosynthesis of high-purity hydrogen peroxide from air and water in a nanobubble facilitated porous solid electrolyte reactor

Rarefied Studios LLC

  • Principal investigator: Kyle Higdon
  • Proposal: Plume impingement module for autonomous proximity operations

The STTR program contracts small businesses in partnership with a research institution and lasts for 13 months. The Houston NASA 2025 STTR awardees include:

Affekta LLC

  • Principal investigator: Hedinn Steingrimsson
  • Proposal: Verifiable success in handling unknown unknowns in space habitat simulations and a cyber-physical system

Solidec and Affekta have ties to Rice University.

Solidec extracts molecules from water and air, then transforms them into pure chemicals and fuels that are free of carbon emissions. It was co-founded by Rice professor Haotian Wang and and was an Innovation Fellow at Rice’s Liu Idea Lab for Innovation and Entrepreneurship. It was previouslt selected for Chevron Technology Ventures’ catalyst program, a Rice One Small Step grant, a U.S. Department of Energy grant, and the first cohort of the Activate Houston program.

Affekta, an AI course, AI assistance and e-learning platform, was a part of Rice's OwlSpark in 2023.

Houston energy tech startup Molecule closes series B funding round

Big Bang

Houston-based energy trading risk management (ETRM) software company Molecule has completed a successful series B round for an undisclosed amount, according to a July 16 release from the company.

The raise was led by Sundance Growth, a California-based software growth equity firm.

Sameer Soleja, founder and CEO of Molecule, said in the release that the funding will allow the company to "double down on product innovation, grow our team, and reach even more markets."

Molecule closed a $12 million Series A round in 2021, led by Houston-based Mercury Fund, and has since seen significant growth. The company, which was founded in 2012, has expanded its customer base across the U.S., U.K., Europe, Canada and South America, according to the release.

Additionally, it has launched two new modules of its software platform. Its Hive module, which debuted in 2022, enables clients to manage their energy portfolio and renewable credits together in one scalable platform. It also introduced Elektra, an add-on for the power market to its platform, which allows for complex power market trading.

"Four years ago, we committed to becoming the leading platform for energy trading," Soleja said in the release. "Today, our customers are managing complex power and renewable portfolios across multiple jurisdictions, all within Molecule.”

Molecule is also known for its data-as-a-lake platform, Bigbang, which enables energy ETRM and commodities trading and risk management (CTRM) customers to automatically import trade data from Molecule and then merge it with various sources to conduct queries and analysis.

“Molecule is doing something very few companies in energy tech have done: combining mission-critical depth with cloud-native, scalable technology,” Christian Stewart, Sundance Growth managing director, added in the statement.

“Sameer and his team have built a platform that’s not only powerful, but user-friendly—a rare combination in enterprise software. We’re thrilled to partner with Molecule as they continue to grow and transform the energy trading and risk management market.”

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This article originally appeared on EnergyCapitalHTX.com.

Rice University professor earns $550k NSF award for wearable imaging tech​

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Another Houston scientist has won one of the highly competitive National Science Foundation (NSF) CAREER Awards.

Lei Li, an assistant professor of electrical and computer engineering at Rice University, has received a $550,000, five-year grant to develop wearable, hospital-grade medical imaging technology capable of visualizing deep tissue function in real-time, according to the NSF. The CAREER grants are given to "early career faculty members who demonstrate the potential to serve as academic models and leaders in research and education."

“This is about giving people access to powerful diagnostic tools that were once confined to hospitals,” Li said in a news release from Rice. “If we can make imaging affordable, wearable and continuous, we can catch disease earlier and treat it more effectively.”

Li’s research focuses on photoacoustic imaging, which merges light and sound to produce high-resolution images of structures deep inside the body. It relies on pulses of laser light that are absorbed by tissue, leading to a rapid temperature rise. During this process, the heat causes the tissue to expand by a fraction, generating ultrasound waves that travel back to the surface and are detected and converted into an image. The process is known to yield more detailed images without dyes or contrast agents used in some traditional ultrasounds.

However, current photoacoustic systems tend to use a variety of sensors, making them bulky, expensive and impractical. Li and his team are taking a different approach.

Instead of using hundreds of separate sensors, Li and his researchers are developing a method that allows a single sensor to capture the same information via a specially designed encoder. The encoder assigns a unique spatiotemporal signature to each incoming sound wave. A reconstruction algorithm then interprets and decodes the signals.

These advances have the potential to lower the size, cost and power consumption of imaging systems. The researchers believe the device could be used in telemedicine, remote diagnostics and real-time disease monitoring. Li’s lab will also collaborate with clinicians to explore how the miniaturized technology could help monitor cancer treatment and other conditions.

“Reducing the number of detection channels from hundreds to one could shrink these devices from bench-top systems into compact, energy-efficient wearables,” Li said in the release. “That opens the door to continuous health monitoring in daily life—not just in hospitals.”

Amanda Marciel, the William Marsh Rice Trustee Chair of chemical and biomolecular engineering and an assistant professor at Rice, received an NSF CAREER Award last year. Read more here.

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