The driest summer in more than a decade prompted an Ohio watershed district this summer to take the unprecedented step of limiting the use of water for oil and gas fracking.

The restrictions applied only to Atwood Lake, a popular boating and fishing spot southeast of Canton that has experienced a foot and a half drop in water levels over the past few months of drought.

It’s a scenario some environmentalists anticipated years ago, saying that climate change will require state and local officials to more carefully regulate the use of water for oil and gas extraction.

“They’re not being proactive enough,” said Leatra Harper, director of the FreshWater Accountability Project, stressing that the lakes are public resources. “The obvious issue is there aren’t adequate protections.”

Hydraulic fracturing, as it’s more formally known, pumps millions of gallons of water mixed with sand and chemicals down into oil and gas wells. The process causes cracks in petroleum-bearing rock, and sand in the fluid props the cracks open. Oil and gas flows from the fractures into the well and up to the surface.

The process uses millions of gallons of water for each horizontally drilled well, and well pads built within the last 12 years often have six wells. The water can be recovered and recycled to some extent. Eventually, though, the water must be disposed of in underground injection wells. That step permanently removes it from the water cycle.

The Muskingum Watershed Conservancy District manages ten lakes and four dry dams in southeastern Ohio for purposes of flood control, recreation and conservation. One of its biggest customers for water sales is the oil and gas industry.

“We’re not in a crisis situation by any stretch of the imagination, but this was just our balancing act to make sure we protect, as much as we can, all of our missions,” said Craig Butler, chief executive of the district. He estimated less than one inch of Atwood Lake’s decline can be attributed to oil- and gas-related withdrawals.

On August 28, the district curtailed water withdrawals by 75% from Atwood Lake. The following week, it curtailed withdrawals from the lake completely.

Lots of water

Under Ohio law, oil and gas drilling operations are generally allowed to withdraw from state waters an average of up to 2 million gallons per day in any 30-day period. Sixty million gallons would fill nearly 91 Olympic-sized swimming pools. 

While the total number of gallons sold is huge, it’s relatively small compared to the billions of gallons in the district’s lakes. Butler compared it to two or three sheets in a notebook.

“We’re really comfortable when we say it’s a negligible impact based on the size of our reservoirs,” Butler said.

Oil and gas companies pay a price for the water — around $3 per 1,000 gallons, according to Ted Auch, Midwest program director for FracTracker. He and other critics think the price should be higher.

“We charge as much as we can,” Butler answered, but if the district’s price gets too high, oil and gas companies can “stick their straw in” elsewhere, such as where a stream crosses private property. Then they may be able to suck out even more without a formal agreement with the watershed organization.

And because some of those sources flow into the district’s lakes, the effect on the district’s water resources would be largely the same, without the district getting revenue from the sales. Some of the funds from the oil and gas industry have paid for efforts to improve water quality and minimize flooding to improve the area’s resilience to climate change, Butler added.

The situation reflects a shortcoming in state law, said Melinda Zemper, a spokesperson for Save Ohio Parks.

“It is clear our state legislators ignore the depletion and contamination of our precious fresh drinking water used in the fracking process,” she said. “And there will always be another landowner who wants oil and gas revenue from leasing mineral rights or selling water flowing through his or her property.”

Operators recycle a lot of the water that’s withdrawn, and the fracking process has gotten more efficient over the years, said Mike Chadsey, a spokesperson for the Ohio Oil and Gas Association.

Getting hard data on recycling is difficult, however. FracFocus, a data clearinghouse, has some data on the composition of fracking fluids, but reporting is voluntary.

According to the Ohio Department of Natural Resources, oil and gas ranks seventh out of its eight registered water use categories. The agency’s 2022 water withdrawals map shows those other categories include public water supplies, agriculture, utilities and other classifications.

Total water withdrawals for the oil and gas industry that year were about 5.17 billion gallons, according to data provided by Karina Cheung, an ODNR spokesperson. A 2024 U.S. Geological Survey report said peak withdrawals reached approximately 5.75 billion gallons in 2017.  

Looking ahead

Questions about future water use for fracking will remain after the current drought ends — possibly soon from the remnants of Hurricane Helene. 

The Muskingum Watershed Conservancy District does a careful review of any company’s request for water withdrawals before a contract is signed, Butler said. Contracts also say water withdrawals can be curtailed if the district deems it necessary, as it did at Atwood Lake, he added.

Critics like Auch contend various data gaps should be filled to ensure more complete reporting. They also want any pre-withdrawal reviews to be more conservative and forward-looking.

Consideration of potential impacts should focus more on possible water-deficit years like this one, Auch said. Otherwise, “you are rapidly altering the savings bank of your watershed by depleting the resource that it has to carry over from year to year.”

Planning also should cover a longer time horizon, said Julie Weatherington-Rice, a hydrogeologist with Bennett and Williams Environmental Consultants in Columbus. Ohio might generally expect warmer, wetter and wilder weather as climate change continues.

Among other things, Ohio is seeing some intense storms, as well as periods of heavy rainfall. Those heavy rains might bump up the total yearly precipitation, but they don’t soak into the ground the way milder, more sustained rains do, Weatherington-Rice said. That could affect groundwater supplies for local areas, causing them to look for backup supplies, she said. And droughts can still occur, as this year shows.  

Water planning also should account for likely migration into Ohio as climate change has more severe impacts elsewhere, Auch said. “We need to start looking at water resources out 10, 15, 30 years.”

CORRECTION: An earlier version of this story misstated the amount gas companies pay for water. It is around $3 per 1,000 gallons of water, not $3 per gallon.

Ohio drought renews worries about massive use of water for fracking is an article from Energy News Network, a nonprofit news service covering the clean energy transition. If you would like to support us please make a donation.

Correction: An earlier version of this story did not include that the advocacy groups’ modeling included one new natural gas plant. The story has been updated.

Xcel Energy’s latest long-range plan for meeting electricity demand in Minnesota includes six new natural gas peaker plants that critics warn could be obsolete before customers are done paying for them.

Comments filed last month by clean energy advocates and the state attorney general’s office push back on the utility’s plan to build a fleet of small fossil fuel plants as it otherwise ramps up clean energy investments. The facilities would operate sparingly, just a few hours at a time on days when the grid is strained and wind, solar and other clean power can’t keep up with demand.

More economical options exist, though, according to a coalition of clean energy groups that hired experts to model alternatives. The study commissioned by the groups concluded Xcel could save ratepayers as much as $3.5 billion by opting for a single new gas plant, and relying more on existing plants, energy storage, efficiency and demand response, and buying surplus power on the regional power grid.

The clean energy groups include Fresh Energy, which publishes the Energy News Network (Fresh Energy’s leadership and policy staff do not have access to ENN’s editorial process.)

The debate is over the utility’s latest integrated resource plan — the first submitted to state regulators since Minnesota Gov. Tim Walz signed legislation last year requiring electric utilities to use 100% clean energy by 2040. Xcel Energy supported the legislation and has proposed various scenarios for achieving the target, but disagreements remain among stakeholders about how to get there, particularly when it comes to cost and equity issues.

Different approaches to modeling

Allen Gleckner, executive lead for policy and programs at Fresh Energy, said Xcel’s gas plant proposal is similar to one in its last integrated resource plan that asked regulators to approve two new peaker plants that would provide as much as 800 megawatts of electricity. Xcel eventually agreed to an open, fuel-neutral bidding process allowing clean energy companies to propose alternatives. That process is still underway, with an administrative law judge expected to make recommendations.

The clean energy groups’ consultants used the same software program as Xcel to arrive at a plan to add a new 374 megawatt gas plant, 3,800-4,800 megawatts of wind, 400 megawatts of solar, and 800 to 1,200 megawatts of energy storage resources by 2030. Extending contracts at existing peaker plants could add 970 megawatts, and energy conservation initiatives could reduce use during high demand times. 

Gleckner said Xcel has taken an exceptionally conservative approach by mostly creating scenarios that did not consider electricity being available from neighboring systems or the MISO regional transmission grid. Gleckner said Xcel does not and has never operated as an island, with MISO delivering power to its customers through a shared resource pool.

“Xcel is using a sort of fiction of modeling because the reality is we’re part of a regional grid,” he said. 

The result is a plan to “build a bunch of new resources that we know are either not compatible with our state laws or are going to be costly and likely to retire early,” he said.

Amelia Vohs, climate program director for the Minnesota Center for Environmental Advocacy, praised Xcel for not asking regulators to extend the life of existing fossil plants, unlike its counterparts in other states. Unlike previous long-range plans, Xcel’s latest imagines a future in which large gas and coal power plants are not the backbone of the system. 

What that grid will look like remains challenging, Vohs said. Adding to the challenge is rising power demand from data centers, manufacturing, and the electrification of buildings and transportation. Even so, Vohs believes clean energy is ready for a leading role.

“It’s a much better solution that’s flexible in this time of uncertainty without making this big commitment to gas resources for the next 40 years,” Vohs said.

Patty O’Keefe, senior field strategist for the Minnesota Sierra Club, said proposed combustion turbine peaker plants pose “significant environmental and public health risks” because they potentially emit more carbon and nitrous oxide than larger, more common combined cycle gas plants. They also tend to be built in communities already suffering higher pollution levels.

The Sierra Club would like Xcel to focus more on energy efficiency than electricity generation in its planning. Efficiency reduces demand and makes “the transition to clean energy smoother and more cost-effective,” O’Keefe said.

Managing risk

Meanwhile, the office of Minnesota Attorney General Keith Ellison has also weighed in, warning that investments made now may become obsolete “stranded assets,” meaning the plants may become uneconomical or forced to retire before they have delivered projected benefits to customers. 

Xcel has acknowledged the risk of stranded assets generally in Securities and Exchange Commission filings, though not specifically in relation to its proposed gas peaker plants.

Utilities are incentivized to build power generation because investors earn a return on capital investment. The attorney general argues that if plants become obsolete or transition to other forms of energy, such as hydrogen, Xcel ratepayers should not have to pay for retrofits and other investments it might have to make to reduce emissions.

In its filings to state regulators, Xcel said it is concerned about having enough firm dispatchable power to meet rising demand quickly during certain times of the day. By 2030, the company will have ended its use of coal for energy generation after closing four coal-burning facilities this decade. The proposal suggests Xcel may need to add even more peaker plants between 2030 and 2040.

Xcel spokesperson Kevin Coss said the company will be “adding a significant amount of wind and solar power to our energy mix” and complementing that generation “with always-available generation — power we can supply any time it’s needed — to reinforce the reliability of the grid.”

Coss said Xcel identifies generation sources in a technology-neutral way so it can decide not to use natural gas combustion plants in the future. The current integrated resource plan calls for fewer firm dispatchable resources than the 2019 version, he said.

The conservative modeling “avoids overreliance on the energy market, which could expose our customers to excessive risk,” Coss said.

Residents, businesses and organizations have until Oct. 4 to send comments on the integrated resource plan to the Public Utilities Commission. The commission is expected to make a decision on the plan in February 2025. 

Minnesota advocates say their alternative to Xcel’s plan for new gas plants could save customers up to $3.5 billion is an article from Energy News Network, a nonprofit news service covering the clean energy transition. If you would like to support us please make a donation.

The leader of a local anti-solar energy group admitted to Ohio regulators last week that a well-connected natural gas executive is among the group’s largest donors.

The testimony by Jared Yost, founder of Knox Smart Development, offered the fullest view yet of the group’s ties to fossil fuel interests, undercutting its claims to be a “grassroots” advocate for local farmers and other residents.

“It changes the story quite a bit,” said David Pomerantz, executive director of the Energy and Policy Institute, a watchdog group that recently published a report on the fossil fuel industry’s long history of using money and misinformation to stoke local opposition to renewable energy projects.

Knox Smart Development emerged late last year as a high-profile local opponent of the proposed 120 megawatt Frasier Solar project, located near Mount Vernon, Ohio. Questions emerged about its funding source after it hosted a town hall meeting at a local theater with complimentary food and drinks for approximately 500 attendees.

Yost disclosed during an Ohio Power Siting Board hearing last week that one of its largest donors is Tom Rastin, the former vice president of Ariel Corporation, which makes compressors for the oil and gas industry. The Washington Post reported last year that Rastin is also a leader of The Empowerment Alliance, a dark money nonprofit that advocates for the natural gas industry.

Yost said he did not have knowledge about Rastin’s work with The Empowerment Alliance, but said the fossil fuel group provided “non-financial” resources to Knox Smart Development to help oppose the Frasier Solar project.

Yost denied being swayed by corporate interests and said his group has not received corporate funding. “The Empowerment Alliance has nothing to do with me or [Knox Smart Development],” he told the Energy News Network via email. “I have reached out to them and asked questions on a couple of occasions, as can anyone, and as I have done of others.”

Multiple links

When asked in his hearing testimony if Knox Smart Development was “funded by any individuals or entities having any interest or providing any goods or services to the fossil fuel industry,” Yost answered, “No, not directly to the best of my knowledge.”

On cross-examination, however, Yost admitted Rastin was one of the group’s largest funders. Yost is a former IT specialist at Ariel Corporation, and his work supported Rastin’s department. Rastin’s wife, Karen Buchwald Wright, is a former president and CEO of Ariel and continues as board chair. Her son Alex Wright succeeded her in 2021 as CEO.

A July 2024 report from the Energy and Policy Institute includes links to recently produced public records. A September 2023 email shows Rastin was slated to speak to the Ohio General Assembly’s Business First caucus in October. The email attached a copy of Rastin’s biography with The Empowerment Alliance logo on top.

Mitch Given, who was identified in a meeting with Ohio lawmakers last year as The Empowerment Alliance’s Ohio director, spoke at a Knox Smart Development town hall meeting last November. There he was introduced as someone who travels across the state to help farmers and others “find their voice” and push back against solar projects.

The emcee for that town hall event, Tom Whatman, is a chief strategist for Majority Strategies. The Empowerment Alliance’s Form 990 filing for 2023 shows it paid the political consulting firm more than $620,000 that year, making it the group’s highest paid contractor for five years in a row.

Yost last week also discussed a dinner meeting last summer about the Frasier Solar project where the attendees included Rastin, Given, Whatman, Ariel employee Trina Trainor, and Lanny Spaulding. Spaulding is listed as a contact person for The Empowerment Alliance on an Ohio lobbyist registration form. Yost’s dad and others also attended. Yost had earlier said he did not organize the meeting.

Yost denied being influenced by The Empowerment Alliance or other corporate interests.

“No one has ever tried to direct me in any way with my opposition to this project. I am nobody’s ‘puppet’,” Yost told the Energy News Network. “I am doing this for me, my family, my township, and my neighbors.” He also said it was “insulting that people try to question my intentions, integrity, and intelligence. Frankly, it hurts.”

Misinformation at work

Nolan Rutschilling, managing director of energy policy for the Ohio Environmental Council, said arguments presented by behind-the-scenes special interests can be more believable if they seem to come from a grassroots effort. 

“People trust their neighbors because they are often believed to not have any outside agenda other than the best interest of their community,” Rutschilling said. “Unfortunately, this allows misinformation to spread quickly, and communities have stopped renewable energy projects from moving forward.”

The stakes are significant, he said, because local public sentiment is among the factors the Ohio Power Siting Board considers in judging whether a project is in the public interest, along with statewide interests.

“If the fossil fuel industry wants to oppose solar projects, they should intervene in the open — not by amplifying misinformation in communities,” Rutschilling said.

“The Empowerment Alliance prefers to stoke fear in hopes of snuffing out perceived competition from clean, cheap, local renewable energy,” said Craig Adair, a vice president for Frasier Solar’s developer, Open Road Renewables. “As always, Frasier Solar stands ready and willing to address local residents’ legitimate concerns about potential impacts of solar development.”  

Statements at Knox Smart Development meetings and in ads have included multiple examples of misinformation. For example, Yost admitted during cross-examination he was unaware that a photo showing damaged solar panels was taken in St. Croix after a strong hurricane — a highly unlikely event in central Ohio. 

“This was intended to show what I believe could happen,” Yost said. 

Other examples include unsupported claims about solar panels and other components releasing toxic chemicals. Steve Goreham, a speaker at the group’s November 2023 town hall, made unsupported claims about climate change. Goreham also drew spurious correlations between electricity price rises and high levels of renewable energy in California and Texas. In fact, wildfires, extreme heat and transmission upgrades were the driving factors.

Misinformation was rife in opposition testimony people gave at three local public hearings held by the Ohio Power Siting Board in Knox County.

Half of more than 100 unique arguments made by project opponents at those hearings were not supported by the facts, said Heidi Gorovitz Robertson, a professor at Cleveland State University College of Law, in her August 22 expert testimony for the Ohio Environmental Council.

“In the aggregate, the arguments do not present credible or compelling opposition to the proposed project,” Robertson said.

Connections confirmed between ‘grassroots’ Ohio solar opposition and dark-money natural gas group is an article from Energy News Network, a nonprofit news service covering the clean energy transition. If you would like to support us please make a donation.

Construction is underway in St. Paul, Minnesota, on a major affordable housing development that will combine solar, geothermal and all-electric appliances to create one of the region’s largest net-zero communities.

Twin Cities Habitat for Humanity broke ground in June on a four-block, 147-unit project on the site of a former golf course that’s being redeveloped by the city and its port authority, which made the decision to forgo gas hookups. 

Affordable housing and Habitat for Humanity builds in particular have become a front line in the fight over the future of gas. The organization has faced criticism in other communities for accepting fossil fuel industry money and partnering with utilities on “net-zero” homes that include gas appliances. It’s also built several all-electric projects using advanced sustainable construction methods and materials.

The scale of the Twin Cities project is what makes it exciting, according to St. Paul’s chief resilience officer Russ Stark. 

“We’ve had plenty of motivated folks build their own all-electric homes, but they’re one-offs,” he said. “There haven’t been many, if any, at scale.”

Stark added that the project, known as The Heights, was made possible by the federal Inflation Reduction Act. 

“I think it’s fair to say that those pieces couldn’t have all come together without either a much bigger public investment or the Inflation Reduction Act, which ended up being that big public investment,” he said.

A vision emerges

Port Authority President and CEO Todd Hurley said his organization bought the property in 2019 from the Steamfitters Pipefitters Local 455, which maintained it as a golf course until 2017. When no private buyers expressed interest in the property, the Port Authority bought it for $10 million.

Hurley said the Port Authority saw potential for light industrial development and had the experience necessary to deal with mercury pollution from a fungicide the golf course staff sprayed to kill weeds.

“We are a land developer, a brownfield land developer, and one of our missions is to add jobs and tax base around the creation of light industrial jobs,” Hurley said.

The Port Authority worked with the city’s planning department on a master plan that included housing, and it solicited developers to build a mix of market-rate, affordable and low-income units. The housing parcels were eventually sold for $20 million to a private developer, Sherman Associates, which partnered with Habitat and JO Companies, a Black-owned affordable and multi-family housing developer.

“Early on, we identified a very high goal of (becoming) a net zero community,” Hurley said. “Everything we have been working on has been steering towards getting to net zero.”

Twin Cities Habitat President and former St. Paul mayor Chris Coleman said the project met his organization’s strategic plan, which calls for building bigger developments instead of its traditional practice of infilling smaller lots with single-family homes and duplexes. The project will be the largest the organization has ever built in the Twin Cities.

Coleman said the Heights offered an opportunity to fill a need in one of St. Paul’s most diverse and economically challenged neighborhoods and “be part of the biggest investment in the East Side in over 100 years.”

The requirement for all-electric homes merged with Habitat’s goal of constructing more efficient and sustainable homes to drive down utility costs for homeowners, he said. Habitat built solar-ready homes and sees the solar shingles on its homes in The Heights as a potential avenue to producing onsite clean energy.

Zeroing in on net zero

Mike Robertson, a Habitat program manager working on the project, said the organization worked with teams from the Minneapolis-based Center for Energy and Environment on energy modeling.

“The Heights is the first time that we’ve dived into doing an all-electric at scale,” Roberston said. “We have confidence that these houses will perform how they were modeled.”

Habitat plans to build the development to meet the Zero Energy Ready Home Program standards developed by the U.S. Department of Energy. Habitat will use Xcel Energy’s utility rebate and efficiency programs to achieve the highest efficiency and go above and beyond Habitat’s typical home standards.

The improved construction only adds a few thousand dollars to the overall costs and unlocks federal government incentives to help pay for upgrades, he said.

The nonprofit will receive free or reduced-cost products from Andersen Windows & Doors and other manufacturers. GAF Energy LLC, a solar roofing company, will donate solar shingles for over 40 homes and roofing materials. On-site solar will help bring down energy bills for homeowners, he said.

Chad Dipman, Habitat land development director, said the solar shingles should cover between half and 60% of the electricity the homes need. Habitat plans to use Xcel Energy incentive programs to help pay for additional solar shingles needed beyond those donated. 

Habitat will install electric resistance heating technology into air handlers to serve as backup heat for extremely cold days. Dipman said that the air source heat pumps will also provide air conditioning, a feature not available in most Habitat properties in Minnesota.  

Phil Anderson, new homes manager at the Center for Energy and Environment, has worked with Habitat on the project. He said the key to reducing the cost of heating and cooling electric homes is a well-insulated, tight envelope and high-performance windows. Habitat will build on its experience with constructing tight homes over the past decade, he said.

“Overall, the houses that we’ve been part of over the last almost ten years have been very tight homes,” Anderson said. “There’s just not a lot of air escaping.”

Habitat’s national office selected The Heights as this year’s Jimmy & Rosalynn Carter Work Project, named after the former president and his wife, two of Habitat’s most famous supporters. The work project begins September 29^th and will receive as visitors Garth Brooks and Trisha Yearwood, who now host the Carters’ program.

Robertson said thousands of volunteers from around the country and the world will help put up the homes. The Heights project “raises a lot of awareness for Habitat and specifically for this development and the decarbonization efforts that we’re putting into it,” he said.

The Heights’s two other housing developers continue raising capital for their projects and hope to break ground by next summer. Habitat believes the project will meet its 2030 completion deadline.

A St. Paul, Minnesota Habitat for Humanity project will offer affordable housing without fossil fuels is an article from Energy News Network, a nonprofit news service covering the clean energy transition. If you would like to support us please make a donation.

Snaking under city streets, behind residential drywall and into furnaces, ovens and other appliances, natural gas pipelines are a ubiquitous presence in U.S. buildings. The question of what to do with them as the planet warms has become a serious debate — dozens of U.S. cities and states have crafted plans to reduce reliance on natural gas, and more than 20 other states have passed laws to preempt that type of regulation.

Now, utilities around the nation have begun testing a controversial idea aimed at reducing the carbon footprint of gas lines, while keeping them in place. Nearly 20 utilities have laid out plans to inject lines with a blend of gas and hydrogen, the latter of which emits no carbon dioxide (CO2) — a major greenhouse gas — when combusted. Testing such blends, these companies say, is an essential step towards understanding the practice, which they argue will help reduce emissions and fight climate change.

Deploying more hydrogen is also a federal priority — the Inflation Reduction Act created a tax credit for hydrogen production, and the Bipartisan Infrastructure Law set aside $9.5 billion to support hydrogen development.

But a federal hydrogen strategy released last year suggests blending hydrogen into gas infrastructure should focus on industrial applications. Many environmental and customer advocates agree; they argue that the use of hydrogen blends in buildings — rather than to power industries that are hard to electrify — makes little sense.

“Every dollar you’re reinvesting into the gas system could be a dollar you’re using to electrify the system,” said Nat Skinner, program manager of the safety branch of the California Public Advocates Office, an independent state office that advocates for consumers in utility regulation. “Finding the right uses for hydrogen is appropriate. But I think being really careful and thoughtful about how we’re doing that is equally important.”

Nearly 30 projects focused on blending hydrogen into gas lines that serve homes and businesses have been proposed or are in operation in more than a dozen states, Floodlight found, and many more utilities have hinted at future proposals. If all are approved, the projects as proposed would cost at least $280 million — and many utilities are asking that customers pay for them.

As regulators consider the proposals, advocates are calling for them to weigh the prudence of the investment. In California — where electric rates have climbed steeply in recent years — the Sierra Club has argued that the projects are “an inappropriate use of ratepayer funds” and “wasteful experiments.”

Blending brings, risks, rewards

Hydrogen blending can be undertaken in a section of pipeline isolated from the rest of the gas network or in a larger “open” system that serves homes. Utilities can inject it in large transmission lines, which ferry gas from processing and storage locations to compressor stations, or into distribution lines, the smaller pipes that bring gas to buildings.

Because hydrogen releases only water vapor and heat when it’s burned, it’s considered a clean fuel. And unlike traditional wind and solar energy, it can produce enough heat to run industrial furnaces. Utilities have framed the fuel as a clear way to slash the emissions associated with their operations.

“These demonstration projects are an important step for us to adopt hydrogen blending statewide, which has the potential to be an effective way to replace fossil fuels,” said Neil Navin, the chief clean fuels officer at Southern California Gas (SoCalGas), in a March statement on its application for hydrogen blending pilots.

Burning hydrogen, particularly in homes, also presents certain risks. Hydrogen burns hotter than natural gas, which can increase emissions of nitrous oxide (NOx), a harmful air pollutant that can react with other elements in the air to produce damaging pollutants including small particulates and ozone.

Hydrogen is a smaller molecule than methane, the main ingredient in natural gas, and can leak more readily out of pipelines. Hydrogen is also flammable. And when certain metals absorb hydrogen atoms, they can become brittle over time, creating risks of pipeline cracks, depending on the materials the pipelines are made of.

There are also outstanding questions about how much hydrogen blending actually reduces greenhouse gas emissions.

Of the utilities that have offered details about the hydrogen source they plan to use for their pilot, roughly half plan to use “green hydrogen,” which is produced using clean electricity generated by renewable sources such as wind and solar. Today, fossil fuels power more than 90% of global hydrogen production, producing “gray hydrogen.”

Most utility blending pilots are targeting blends of up to 20% hydrogen. At those levels, research has shown that hydrogen would reduce carbon dioxide emissions by less than 10%, even when using hydrogen produced with clean manufacturing processes.

Some utilities have estimated the emissions impacts of their pilots. A CenterPoint Energy pilot in Minneapolis using blends of up to 5% green hydrogen was estimated to reduce carbon emissions by 1,200 metric tons per year, which is the approximate energy use of 156 homes. A project in New Jersey testing blends of 1% green hydrogen was estimated to reduce emissions enough to offset the energy use of roughly 24 homes.

Blending gray hydrogen may show no carbon benefit at all, according to some research. That’s in part because hydrogen produces one-third less energy by volume than natural gas, meaning three times the amount of hydrogen is needed to make up for the same unit of natural gas.

And hydrogen requires more energy to manufacture than it will later produce when it’s burned. For these reasons, some environmental groups say hydrogen is an inefficient way to decarbonize homes and businesses; some analysts have called the process “a crime against thermodynamics.”

“There are much better, readily available, more affordable ways to decarbonize buildings in the form of electrification and energy efficiency,” said Jim Dennison, a staff attorney at the Sierra Club.

Advocates including Dennison also worry that investing more in the natural gas system will delay electrification and allow utilities to keep their core pipeline businesses running. “I can see why that’s attractive to those utilities,” he said. “That doesn’t mean it makes sense for customers or the climate.”

‘We’re not sure’ of right mix

While the climate benefits are debated, some research and active projects indicate that burning blended fuel at certain levels can be safe. For decades, Hawaii Gas has used synthetic natural gas that contains 10-12% hydrogen. Countries including Chile, Australia, Portugal and Canada have also run hydrogen blending pilots.

And although pipelines can weather when carrying hydrogen, that’s less likely for distribution lines that reach homes because those pipes are often plastic, said Bri-Mathias Hodge, an associate professor in energy engineering at the University of Colorado-Boulder.

Hodge helped author a 2022 review of technical and regulatory limits on hydrogen and gas blending. With blends below 5%, Hodge said customers are unlikely to face risks or notice a difference in how their appliances or furnaces function.

More uncertainty exists around higher blends. “I think we’re not sure if below 20% or say, from 5 to 20% is safe,” said Ali Mosleh, an engineer at the University of California-Los Angeles who is spearheading hydrogen blend pilot testing with 44 partners, including utilities, to address knowledge gaps in the state.

Although Hodge at UC-Boulder thinks electrification is the more efficient choice for homes, he said the pilots can help utilities get comfortable with blending, which may eventually be applied elsewhere. “It’s not going to really move the needle in terms of decarbonization long term, but it’s a step in the right direction,” he said.

Steven Schueneman, the hydrogen development manager at utility Puget Sound Energy, which serves about 1.2 million electric and 900,000 gas customers in Washington, said incremental approaches like utility blending pilots will signal that hydrogen is a “real industry.” That could help the fuel gain a foothold in other areas, like industrial heat and aviation.

But Schueneman also acknowledges there remains uncertainty around whether hydrogen is the most cost-effective way to decarbonize buildings.

“It’s not clear that blending hydrogen is going to be a prudent decision at the end of the day,” he said.

Puget Sound Energy has conducted two small-scale blending pilots at a test facility. In the future, the utility plans to focus its hydrogen efforts on how blends may function in power plants, rather than in buildings. The nearly 30 blending pilots Floodlight tracked include only projects focused on use in buildings, but other utilities have proposed blending hydrogen at natural gas power plants, where the blend will be burned for electricity.

‘Cost is an essential consideration’

Blending pilots focused on buildings have been spearheaded by some of the largest utilities in the nation as well as smaller-scale gas providers, and are being considered from coast-to-coast.

Dominion Energy, which serves 4.5 million customers in 13 states, has laid out plans for three blending pilots, in Utah, South Carolina and Ohio. National Grid, which has 20 million customers, is pursuing a project in New York. And multiple large California utilities have proposed pilot programs.

Some utilities, such as Dominion and Minnesota-based Xcel Energy, did not reply to several requests for clarification on hydrogen blending plans, or replied to only some queries about their plans. But plans from certain utilities have been detailed in regulatory filings with state utility commissions.

The pilots for which cost data are available range in price from roughly $33,000 for Puget Sound Energy’s small-scale testing (which ratepayers did not fund) up to an estimated $63.5 million for a decade-long pilot proposed by California utility Pacific Gas & Electric (PG&E), which would focus on blending 5% at the start ranging up to 20% hydrogen in transmission gas lines.

If approved, customers would pay up to $94.2 million for PG&E’s pilot, because of the rate of return utilities are able to collect from customers. California utilities are aiming to recover more than $200 million in total from customers for their proposed pilots.

California regulators have rejected some previous blending proposals from utilities, saying companies should use “every reasonable attempt to use existing and other funds before requesting new funds.” Advocates including the Environmental Defense Fund (EDF) have argued that the projects are not in the public interest, particularly amid the state’s spiking utility bills.

“Cost is an essential consideration,” said Erin Murphy, a senior attorney at EDF. “When you’re passing on costs to ratepayers, you have to demonstrate that that is a prudent investment.”

Pilots have gotten pushback in other states, including Colorado and Oregon, where projects were recently dropped or delayed, and opposition has been fierce in California, which has the most pilots proposed to date. The mayor of Truckee, California, which could host a project, submitted a comment to regulators explaining the town does not support it. And following protests at two California universities that planned to collaborate on projects, utilities downsized the plans.

After student opposition at University of California-Irvine, SoCalGas reduced the scope of the project and proposed an additional pilot in Orange Cove, a small agricultural community of about 9,500 people. Ninety-six percent of Orange Cove’s population identifies as Hispanic or Latino, and roughly 47% of residents live below the federal poverty line, according to the U.S. Census.

Some Orange Cove residents also are concerned about blending, which SoCalGas hopes to test at up to 5% hydrogen levels. Genoveva Islas, who grew up there and is the executive director of Cultiva la Salud, a public health nonprofit based in nearby Fresno, said the local approval process lacked transparency and public input.

The project is slated to sit steps away from the Orange Cove football field, near the town’s high school, middle school and community center. “In short, I would just say it is concerning,” Islas said.

In an email, the utility told Floodlight that the city “proactively asked SoCalGas to undertake this project in its community” and said it was “expected to bring socioeconomic benefits to Orange Cove.” The utility also said it hosted a community engagement meeting about the project in Spanish and English and has provided fact sheets to the community in both languages.

In Colorado, where Xcel Energy had planned to blend hydrogen in an isolated neighborhood, some residents learned of the pilot from a journalist reporting on the project.

That has made some feel like unwilling test subjects in an experiment that others, like the Sierra Club’s Dennison, say are unnecessary. “The community’s immediate reaction is that they don’t want to be guinea pigs,” Islas said. “They do not understand how this decision was made without their involvement or their consent.”

The great majority of the projects, including the one in Orange Cove, are still under review by regulators. Meanwhile, researchers are undertaking more studies to understand the technical limits of blending.

“There are a lot of unknowns,” said Mosleh from UCLA. “Some fundamental research needs to be done.”

Utilities are trying hydrogen-blended fuels. There are a lot of unknowns. is an article from Energy News Network, a nonprofit news service covering the clean energy transition. If you would like to support us please make a donation.