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It’s not easy to build a wind project. Many of the best spots for generating wind power are already occupied by turbines. Even if you do find a good one, then comes everything else — inflation in the supply chain, convincing a local community that they want a wind farm near them, leasing the land, and so on and so forth. The whole process can take as long as five years.
But what about just making an existing wind farm … better.
This option, known as repowering, is becoming more attractive to wind developers and operators as existing wind assets age — operators get a more efficient wind farm, and developers get to avoid the many headaches of starting from scratch. The topic came up Tuesday, in fact, at the American Council on Renewable Energy’s 2024 Finance Forum. There are “some real opportunities for repower,” said David Giordano, BlackRock’s global head of climate infrastructure, on a panel about scaling capital to meet demand growth for renewables.
“When you repower a project, oftentimes you can utilize some of the existing infrastructure. And that means that you can add new equipment without the full cost of a greenfield development,” Eric Lantz, director of the Wind Energy Technologies Office at the Department of Energy, explained to me. When you install more modern equipment, he said, “you have higher hub heights, you have larger rotors — you can capture more energy from that site.”
Even if you tear down everything and rebuild from the ground up, Lantz told me, repowering still means you can use the existing transmission and interconnection, meaning developers can get more generation without having to deal with infamously long interconnection queues, which can impose yet more years on the energy development timeline.
Lantz collaborated on a 2020 research paper with a trio of Danish wind researchers (Denmark has one of the largest and most advanced wind power industries in the world) and found that from 2012 to 2019, 38% of all wind energy development projects in the country involved replacing old equipment as opposed to building on new sites. Repowering can be attractive to both developers and local communities, the researchers explained, because larger and more efficient turbines can actually reduce the net number of turbines on a given site while generating the same or even more power, with less visual disruption and less maintenance required.
Last year, Wood Mackenzie estimated that repowering onshore wind assets would lead to more installed capacity than new offshore wind in 2025 and 2026. In 2022, the U.S. repowered 1.7 gigawatts of wind plants, mostly by upgrading rotors (blades) and nacelle components like gearboxes and generators, upping their total capacity to 1.8 gigawatts, according to the Department of Energy. Average rotor diameter increased from 93 meters to 112 meters, adding on about the length of an 18-wheeler to the typical rotor.
Repowering has been a favored strategy of some of the biggest renewable developers, who have large and aging fleets of wind turbines that often already occupy prime spots. At the massive Shepherds Flat site in Oregon, for instance, Brookfield Renewable Partners replaced more than 300 turbines — i.e. over 900 blades — with new ones that were about 90 feet longer, upping the site’s total generation by some 20%.
At a proposed repowering in Southern California, Brookfield wants to replace around 450 turbines with just eight, while a New York repowering increased generation by almost 30% “while maintaining the same number of units to minimize ground disturbance,” the company said.
The rationale for repowering, like everything in energy, is a mixture of mechanical and financial. Over time, wind turbines tend to degrade, with actual power generation falling off. Even just by restoring a wind farm’s initial generating capacity, repowering can increase output, with newer, more advanced equipment, capacity can notably increase. And when renewable developers have to answer to investors, that cheaper generation can look quite attractive.
The energy developer NextEra plans to repower 1.4 gigawatts of its wind projects through 2026, the company’s chief financial officer said in an April earning call, and in January said that it had repowered a quarter of its existing 24 megawatts of wind. At that time, NextEra chief executive John Ketchum told analysts that the cost had been “roughly 50% to 80% of the cost of a new build and starting a new 10 years of production tax credits, resulting in attractive returns for shareholders.”
“With over a decade to potentially qualify for repowering,” he added, “it represents a great opportunity set.”
Looking at wind projects from before and after 2012, Scott Wilmot, an executive vice president at Enverus Intelligence Research, calculated that average capacity factor increased from around 30% to around 40%. “Swapping new equipment right off the bat, you can get a plus-10 percentage point gain on capacity factor,” he told me.
And then there’s the tax incentives. Repowering “resets” the production tax credit that’s the lifeblood of the wind industry, allowing owners and developers to claim it for another 10 years. When Enverus looked at a hypothetical project that had been operational since 2011 and repowered in 2023, it was possible that its production tax credit for an additional 10 years could increase from $22 per megawatt to almost $28. “It really does make the economics look quite attractive,” he told me.
“If you can get close to 10 percentage point capacity factor gain, you blow pretty much any greenfield, new build project out of the water.”
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On environmental justice grants, melting glaciers, and Amazon’s carbon credits
Current conditions: Severe thunderstorms are expected across the Mississippi Valley this weekend • Storm Martinho pushed Portugal’s wind power generation to “historic maximums” • It’s 62 degrees Fahrenheit, cloudy, and very quiet at Heathrow Airport outside London, where a large fire at an electricity substation forced the international travel hub to close.
President Trump invoked emergency powers Thursday to expand production of critical minerals and reduce the nation’s reliance on other countries. The executive order relies on the Defense Production Act, which “grants the president powers to ensure the nation’s defense by expanding and expediting the supply of materials and services from the domestic industrial base.”
Former President Biden invoked the act several times during his term, once to accelerate domestic clean energy production, and another time to boost mining and critical minerals for the nation’s large-capacity battery supply chain. Trump’s order calls for identifying “priority projects” for which permits can be expedited, and directs the Department of the Interior to prioritize mineral production and mining as the “primary land uses” of federal lands that are known to contain minerals.
Critical minerals are used in all kinds of clean tech, including solar panels, EV batteries, and wind turbines. Trump’s executive order doesn’t mention these technologies, but says “transportation, infrastructure, defense capabilities, and the next generation of technology rely upon a secure, predictable, and affordable supply of minerals.”
Anonymous current and former staffers at the Environmental Protection Agency have penned an open letter to the American people, slamming the Trump administration’s attacks on climate grants awarded to nonprofits under the Inflation Reduction Act’s Greenhouse Gas Reduction Fund. The letter, published in Environmental Health News, focuses mostly on the grants that were supposed to go toward environmental justice programs, but have since been frozen under the current administration. For example, Climate United was awarded nearly $7 billion to finance clean energy projects in rural, Tribal, and low-income communities.
“It is a waste of taxpayer dollars for the U.S. government to cancel its agreements with grantees and contractors,” the letter states. “It is fraud for the U.S. government to delay payments for services already received. And it is an abuse of power for the Trump administration to block the IRA laws that were mandated by Congress.”
The lives of 2 billion people, or about a quarter of the human population, are threatened by melting glaciers due to climate change. That’s according to UNESCO’s new World Water Development Report, released to correspond with the UN’s first World Day for Glaciers. “As the world warms, glaciers are melting faster than ever, making the water cycle more unpredictable and extreme,” the report says. “And because of glacial retreat, floods, droughts, landslides, and sea-level rise are intensifying, with devastating consequences for people and nature.” Some key stats about the state of the world’s glaciers:
In case you missed it: Amazon has started selling “high-integrity science-based carbon credits” to its suppliers and business customers, as well as companies that have committed to being net-zero by 2040 in line with Amazon’s Climate Pledge, to help them offset their greenhouse gas emissions.
“The voluntary carbon market has been challenged with issues of transparency, credibility, and the availability of high-quality carbon credits, which has led to skepticism about nature and technological carbon removal as an effective tool to combat climate change,” said Kara Hurst, chief sustainability officer at Amazon. “However, the science is clear: We must halt and reverse deforestation and restore millions of miles of forests to slow the worst effects of climate change. We’re using our size and high vetting standards to help promote additional investments in nature, and we are excited to share this new opportunity with companies who are also committed to the difficult work of decarbonizing their operations.”
The Bureau of Land Management is close to approving the environmental review for a transmission line that would connect to BluEarth Renewables’ Lucky Star wind project, Heatmap’s Jael Holzman reports in The Fight. “This is a huge deal,” she says. “For the last two months it has seemed like nothing wind-related could be approved by the Trump administration. But that may be about to change.”
BLM sent local officials an email March 6 with a draft environmental assessment for the transmission line, which is required for the federal government to approve its right-of-way under the National Environmental Policy Act. According to the draft, the entirety of the wind project is sited on private property and “no longer will require access to BLM-administered land.”
The email suggests this draft environmental assessment may soon be available for public comment. BLM’s web page for the transmission line now states an approval granting right-of-way may come as soon as May. BLM last week did something similar with a transmission line that would go to a solar project proposed entirely on private lands. Holzman wonders: “Could private lands become the workaround du jour under Trump?”
Saudi Aramco, the world’s largest oil producer, this week launched a pilot direct air capture unit capable of removing 12 tons of carbon dioxide per year. In 2023 alone, the company’s Scope 1 and Scope 2 emissions totalled 72.6 million metric tons of carbon dioxide equivalent.
If you live in Illinois or Massachusetts, you may yet get your robust electric vehicle infrastructure.
Robust incentive programs to build out electric vehicle charging stations are alive and well — in Illinois, at least. ComEd, a utility provider for the Chicago area, is pushing forward with $100 million worth of rebates to spur the installation of EV chargers in homes, businesses, and public locations around the Windy City. The program follows up a similar $87 million investment a year ago.
Federal dollars, once the most visible source of financial incentives for EVs and EV infrastructure, are critically endangered. Automakers and EV shoppers fear the Trump administration will attack tax credits for purchasing or leasing EVs. Executive orders have already suspended the $5 billion National Electric Vehicle Infrastructure Formula Program, a.k.a. NEVI, which was set up to funnel money to states to build chargers along heavily trafficked corridors. With federal support frozen, it’s increasingly up to the automakers, utilities, and the states — the ones with EV-friendly regimes, at least — to pick up the slack.
Illinois’ investment has been four years in the making. In 2021, the state established an initiative to have a million EVs on its roads by 2030, and ComEd’s new program is a direct outgrowth. The new $100 million investment includes $53 million in rebates for business and public sector EV fleet purchases, $38 million for upgrades necessary to install public and private Level 2 and Level 3 chargers, stations for non-residential customers, and $9 million to residential customers who buy and install home chargers, with rebates of up to $3,750 per charger.
Massachusetts passed similar, sweeping legislation last November. Its bill was aimed to “accelerate clean energy development, improve energy affordability, create an equitable infrastructure siting process, allow for multistate clean energy procurements, promote non-gas heating, expand access to electric vehicles and create jobs and support workers throughout the energy transition.” Amid that list of hifalutin ambition, the state included something interesting and forward-looking: a pilot program of 100 bidirectional chargers meant to demonstrate the power of vehicle-to-grid, vehicle-to-home, and other two-way charging integrations that could help make the grid of the future more resilient.
Many states, blue ones especially, have had EV charging rebates in places for years. Now, with evaporating federal funding for EVs, they have to take over as the primary benefactor for businesses and residents looking to electrify, as well as a financial level to help states reach their public targets for electrification.
Illinois, for example, saw nearly 29,000 more EVs added to its roads in 2024 than 2023, but that growth rate was actually slower than the previous year, which mirrors the national narrative of EV sales continuing to grow, but more slowly than before. In the time of hostile federal government, the state’s goal of jumping from about 130,000 EVs now to a million in 2030 may be out of reach. But making it more affordable for residents and small businesses to take the leap should send the numbers in the right direction, as will a state-backed attempt to create more public EV chargers.
The private sector is trying to juice charger expansion, too. Federal funding or not, the car companies need a robust nationwide charging network to boost public confidence as they roll out more electric offerings. Ionna — the charging station partnership funded by the likes of Hyundai, BMW, General Motors, Honda, Kia, Mercedes-Benz, Stellantis, and Toyota — is opening new chargers at Sheetz gas stations. It promises to open 1,000 new charging bays this year and 30,000 by 2030.
Hyundai, being the number two EV company in America behind much-maligned Tesla, has plenty at stake with this and similar ventures. No surprise, then, that its spokesperson told Automotive Dive that Ionna doesn’t rely on federal dollars and will press on regardless of what happens in Washington. Regardless of the prevailing winds in D.C., Hyundai/Kia is motivated to support a growing national network to boost the sales of models on the market like the Hyundai Ioniq5 and Kia EV6, as well as the company’s many new EVs in the pipeline. They’re not alone. Mercedes-Benz, for example, is building a small supply of branded high-power charging stations so its EV drivers can refill their batteries in Mercedes luxury.
The fate of the federal NEVI dollars is still up in the air. The clearinghouse on this funding shows a state-by-state patchwork. More than a dozen states have some NEVI-funded chargers operational, but a few have gotten no further than having their plans for fiscal year 2024 approved. Only Rhode Island has fully built out its planned network. It’s possible that monies already allocated will go out, despite the administration’s attempt to kill the program.
In the meantime, Tesla’s Supercharger network is still king of the hill, and with a growing number of its stations now open to EVs from other brands (and a growing number of brands building their new EVs with the Tesla NACS charging port), Superchargers will be the most convenient option for lots of electric drivers on road trips. Unless the alternatives can become far more widespread and reliable, that is.
The increasing state and private focus on building chargers is good for all EV drivers, starting with those who haven’t gone in on an electric car yet and are still worried about range or charger wait times on the road to their destination. It is also, by the way, good news for the growing number of EV folks looking to avoid Elon Musk at all cost.
From Kansas to Brooklyn, the fire is turning battery skeptics into outright opponents.
The symbol of the American battery backlash can be found in the tiny town of Halstead, Kansas.
Angry residents protesting a large storage project proposed by Boston developer Concurrent LLC have begun brandishing flashy yard signs picturing the Moss Landing battery plant blaze, all while freaking out local officials with their intensity. The modern storage project bears little if any resemblance to the Moss Landing facility, which uses older technology,, but that hasn’t calmed down anxious locals or stopped news stations from replaying footage of the blaze in their coverage of the conflict.
The city of Halstead, under pressure from these locals, is now developing a battery storage zoning ordinance – and explicitly saying this will not mean a project “has been formally approved or can be built in the city.” The backlash is now so intense that Halstead’s mayor Dennis Travis has taken to fighting back against criticism on Facebook, writing in a series of posts about individuals in his community “trying to rule by MOB mentality, pushing out false information and intimidating” volunteers working for the city. “I’m exercising MY First Amendment Right and well, if you don’t like it you can kiss my grits,” he wrote. Other posts shared information on the financial benefits of building battery storage and facts to dispel worries about battery fires. “You might want to close your eyes and wish this technology away but that is not going to happen,” another post declared. “Isn’t it better to be able to regulate it in our community?”
What’s happening in Halstead is a sign of a slow-spreading public relations wildfire that’s nudging communities that were already skeptical of battery storage over the edge into outright opposition. We’re not seeing any evidence that communities are transforming from supportive to hostile – but we are seeing new areas that were predisposed to dislike battery storage grow more aggressive and aghast at the idea of new projects.
Heatmap Pro data actually tells the story quite neatly: Halstead is located in Harvey County, a high risk area for developers that already has a restrictive ordinance banning all large-scale solar and wind development. There’s nothing about battery storage on the books yet, but our own opinion poll modeling shows that individuals in this county are more likely to oppose battery storage than renewable energy.
We’re seeing this phenomenon play out elsewhere as well. Take Fannin County, Texas, where residents have begun brandishing the example of Moss Landing to rail against an Engie battery storage project, and our modeling similarly shows an intense hostility to battery projects. The same can be said about Brooklyn, New York, where anti-battery concerns are far higher in our polling forecasts – and opposition to battery storage on the ground is gaining steam.