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Renewable energy just became a much more enticing investment.
That’s thanks to the Federal Reserve, which announced today that it would reduce the benchmark federal funds rate by half a percentage point, from just over 5% to just below. It’s the beginning of an unwinding of years of high interest rates that have weighed on the global economy and especially renewable energy.
The Federal Reserve’s economic projections also indicated that the federal funds rate could fall another half point by the end of the year and a full point in 2025. The Federal Reserve began hiking interest rates from their near-zero levels in March 2022 in response to high inflation.
High interest rates, which drive up the cost of borrowing money, have an outsize effect on renewable energy projects. That’s because the cost of building and operating a renewable energy generator like a wind farm is highly concentrated in its construction, as opposed to operations, thanks to the fact that it doesn’t have to pay for fuel in the same way that a natural gas or coal-fired power plant does. This leaves developers highly exposed to the cost of borrowing money, which is directly tied to interest rates. “Our fuel is free, we say, but our fuel is really the cost of capital because we put so much capital out upfront,” Orsted Americas chief executive David Hardy said in June.
So what does that mean in practice? Let’s look at some numbers.
Wood Mackenzie estimates that a 2% increase in interest rates pushes up the cost of energy produced by a renewables project by around 20%, compared to just over 10% for conventional power plants.
Meanwhile the investment bank Lazard estimates that reducing the cost of capital (the combined cost of borrowing money and selling equity in a project, both of which can be affected by interest rates) from 7.7% — the bank’s rough assumption over the summer — to 5.4% would lower the levelized cost of energy for an offshore wind system from $118 to $97 — around 17% — and for a utility solar project from $76 to $54 — roughly 28%. While there's not a one-to-one relationship between interest rates and the cost of capital, they move in the same direction.
Reductions in cost of capital also make more renewables project viable to finance. According to a model developed by the Center for Public Enterprise, a typical renewable energy project with a weighted average cost of capital of 7.75% will have a debt service coverage ratio (a project’s cash flow compared to its loan payments)of 1.16. Investors consider projects to be roughly viable at 1.25.
So at the cost of capital assumed by Lazard, many projects will not get funded because investors don't see them as viable. If the weighted average cost of capital were to fall one percentage point to 6.75%, a project’s debt service coverage ratio would rise to 1.28, just above the viability threshold. If it fell by another percentage point, the debt ratio would hit a likely compelling 1.43.
“As rates fall, projects become increasingly financially viable,” Advait Arun, senior associate of energy finance at the Center for Public Enterprise and Heatmap contributor, told me matter-of-factly.
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Current conditions: Shanghai, still recovering from the strongest storm to hit the city in 75 years, is bracing for Typhoon Pulasan • Extreme flooding in the north of Italy has forced some 1,000 people to evacuate • It’s looking unlikely that this month will break last year’s record for warmest September ever.
The explosive growth in solar power shows no signs of stopping this year. New analysis from energy think tank Ember forecasts the world is on track to add 593 gigawatts of solar power in 2024, nearly 30% more than last year’s installations and nearly 200 GW more than the International Energy Agency predicted at the start of the year. The report underscores how a handful of countries are responsible for most of the world’s new solar capacity. China leads, followed by the U.S., India, Germany, and Brazil. These five countries are on track to account for 75% of new global installations in 2024. And they are sustaining their growth year after year.
Ember
Here’s the most important takeaway from the Ember report: “This now puts ambitious climate pledges within reach.” It’s very possible – and indeed likely – that the world will triple solar capacity by 2030. In this scenario, solar power would generate a quarter of the world’s electricity. “Countries need to plan ahead to make the most of the high levels of solar capacity being built today and ensure the continued build-out of capacity in the coming years,” the report says.
The Federal Reserve announced yesterday that it would reduce the benchmark federal funds rate by half a percentage point, from just over 5% to just below. What does this mean for renewable energy? Well, it just became a much more enticing investment, wrote Heatmap’s Matthew Zeitlin. High interest rates have an outsize effect on renewable energy projects, because the cost of building and operating a renewable energy generator like a wind farm is highly concentrated in its construction. Wood Mackenzie estimates that a 2% increase in interest rates pushes up the cost of energy produced by a renewables project by around 20%, compared to just over 10% for conventional power plants. “As rates fall, projects become increasingly financially viable,” said Advait Arun, senior associate of energy finance at the Center for Public Enterprise and Heatmap contributor.
The European Union’s head office has warned that the extreme weather devastating parts of the continent are proof that “climate breakdown” is “fast becoming the norm,” The Associated Pressreported. Parts of Europe are experiencing some of the worst flooding in at least two decades, while Portugal has declared a “state of calamity” as enormous wildfires rage out of control and threaten the homes of more than 200,000 people. “We face a Europe that is simultaneously flooding and burning. These extreme weather events ... are now an almost annual occurrence,” said EU Crisis Management Commissioner Janez Lenarcic. “The global reality of the climate breakdown has moved into the everyday lives of Europeans.” Europe is the fastest warming continent on Earth.
Today the startup Brightband emerged from stealth with $10 million in Series A funding and a unique plan to commercialize generative AI weather modeling. Instead of trying to go up against Weather.com, Brightband is tailoring models to specific industries such as insurance, finance, agriculture, energy, and transportation. The round was led by Prelude Ventures. AI models like Brightband’s are trained on decades worth of past weather data, and when fed a snapshot of current conditions, can predict what will come next, much like ChatGPT does with text. Brightband’s CEO Julian Green told Heatmap’s Katie Brigham that customizing forecasts for particular industries will also be as simple as querying a large language model. A wind farm operator could, for example, “just take an attached file of historical wind energy production, and throw it in there and say, hey, tell me what the wind energy is going to be like next week.” Brightband says it hopes to publish a paper by year’s end with an open-source version of its forecast model, alongside evaluation tools to assess its performance.
Truck drivers seem to really like Tesla’s Semi electric truck. PepsiCo is Tesla’s first customer for the trucks, and has 89 of them deployed across various fleets. Speaking at the IAA Transportation event, PepsiCo’s electrification program manager Dejan Antunović said some veteran drivers are reporting that they never want to go back to driving diesel after having handled the Tesla Semi. “Based on its history of delivering efficient electric vehicles in volume profitably, I think Tesla is the one to make commercial electric trucks happen at scale,” wroteElectrek’s Fred Lambert.
Researchers were pleasantly surprised to discover that 90% of young corals that were bred using in vitro fertilization and deposited in reefs across the Caribbean survived last year’s marine heatwave.
Brightband emerges from stealth to commercialize AI-weather forecasting.
The weather has never been hotter.
The past few years have seen a boom in the weather prediction industry, with AI-based weather models from the likes of Google DeepMind, Huawei, and Nvidia consistently outperforming traditional models. Most of that work has been research-oriented, but today the startup Brightband emerged from stealth with $10 million in Series A funding and a unique plan to commercialize generative AI weather modeling. Instead of trying to go up against Weather.com, Brightband is tailoring models to specific industries such as insurance, finance, agriculture, energy, and transportation. The round was led by Prelude Ventures.
Weather forecasting has traditionally been the domain of the public sector, with the most widely used models coming from the U.S. National Weather Service and the European Center for Medium-Range Weather Forecasts. Brightband’s CEO Julian Green told me that private companies haven’t been able to break in “because it has cost so much to have billion dollar supercomputers,” which are required to run today’s so-called “numerical” weather models.
These models rely on complex atmospheric equations based on the laws of physics to predict future weather patterns, and because of their computational intensity, are usually only updated four times daily. It’s possible then that AI-based weather prediction could thus actually reduce energy demand — because while it takes a lot of energy to train an AI model, after that’s done, generating forecasts is simple. “So instead of six hours to have a forecast, it takes under a second. Instead of using a billion dollar supercomputer, you’re using a laptop,” Green told me.
AI models like Brightband’s are trained on decades worth of past weather data, and when fed a snapshot of current conditions, can predict what will come next, much like ChatGPT does with text. “Think about the weather AI prediction problem as predicting the next frame in a radar sequence,” Green told me.
He said that customizing forecasts for particular industries will also be as simple as querying a large language model. A wind farm operator could, for example, “just take an attached file of historical wind energy production, and throw it in there and say, hey, tell me what the wind energy is going to be like next week.” Likewise folks in the aviation industry could have the model tell them if their plane’s wings are likely to ice up, utilities could get detailed insight into expected energy demand and generation, and finance companies could get up-to-the-minute information about weather-sensitive commodities. Previously, companies would’ve had to build their own forecasting teams or hire third-party advisors to get such specific predictions.
Brightband wants to further differentiate itself from the types of models that tech companies have already built by using only raw data inputs to generate its forecasts, from sources such as satellites, weather balloons, and radar systems. Perhaps surprisingly, this is not the way that most models currently work. Because there are data gaps, such as over oceans and in the developing world, the datasets used to train today’s AI weather models, Green explained, “smear the available data over a three-dimensional grid of the globe,” diluting the accuracy of both the real-time weather and presumably the resulting forecasts.
It’s hard to say how much more accurate using only raw data inputs will be, because “that’s what nobody has done yet,” Green told me. Data gaps are still an issue of course, but Green told me that Brightband’s approach will also allow the company to better analyze when and where filling these gaps would add the most value.
Brightband says it hopes to publish a paper by year’s end with an open-source version of its forecast model, alongside evaluation tools to assess its performance.
Why farmers are becoming the new nemeses of the solar and wind industries
Farms are fast becoming one of the most powerful opponents to renewable energy in the United States, second perhaps only to the fossil fuel industry. And it’s frighteningly unclear how developers will resolve this problem – or if they even can.
As solar and wind has grown rapidly across the country, so too have protests against solar and wind power on “prime farmland,” a loose term used by industry and government officials to describe property best suited for growing lots of crops. Towns and counties are banning the construction of solar and wind farms on prime farmland. State regulators – including those run by Democrats – are restricting renewable development on prime farmland, and members of Congress are looking at cutting off or restricting federal funds to projects on prime farmland.
In theory, meeting our country’s climate goals and industry needs should require very little farmland. But those same wide expanses flush with sunlight and gusts of wind sought after by developers happen to often be used by farmers: A USDA study released this year found more than 90% of wind turbines and 70% of solar farms in rural areas were sited on agricultural land.
It would be easy for an activist or energy nerd to presume this farmland free-for-all is being driven by outside actors or adverse incentives (and there’s a little bit of that going on, as we’ll get to).
However, weeks of reporting – and internal Heatmap News datasets – have revealed to me that farmland opposition actually has a devilishly simple explanation: many large farm owners are just plain hostile to land use changes that could potentially, or even just hypothetically, impact their capacity to grow more crops.
This means there is no easy solution and as I’ll explain, it is unclear whether the renewables sector’s efforts to appear more accommodating to agricultural businesses – most notably agri-voltaics – will stem the tide of local complaints from rural farmers.
“This is a new land use that is very quickly accelerating across the country and one of the major reactions is just to that fact,” Ethan Winter of American Farmland Trust, a nonprofit promoting solar education in farm communities, told me. “These are people who’ve been farming this land for generations in some instances. The idea of doing anything to take it out of agricultural production is just hard for them, for their community, and it’s about the culture of their community, and if solar is something that can be considered compatible with agriculture.”
Over 40% of all restrictive ordinances and moratoriums in Heatmap Pro's database are occurring in counties with large agricultural workforces.
In fact, our internal data via Heatmap Pro has found that agricultural employment can be a useful predictor of whether a community will oppose the deployment of renewables. It's particularly salient where there's large-scale, capital-intensive farming, likely because the kind of agriculture requiring expensive machinery, costly chemicals, and physical and financial infrastructure — think insurance and loans — indicates that farming is the economic cornerstone of that entire community.
Resentment against renewables is pronounced in the Corn Belt, but it’s also happening even in the bluest of states like Connecticut, where state environmental regulators have recommended against developing on prime farmland and require additional permits to build on preferred fertile soils. Or New York, where under pressure from farming groups including the state Farm Bureau, the state legislature last year included language in a new permitting authority law limiting the New York Power Authority from approving solar and wind on “land used in agricultural production” unless the project was agrivoltaics, which means it allows simultaneous farming of the property. The state legislature is now looking at additional curbs on siting projects in farmland as it considers new permitting legislation.
Deanna Fox, head of the New York Farm Bureau, explained to me that her organization’s bottom-up structure essentially means its positions are a consensus of its grassroots farm worker membership. And those members really don’t trust renewables to be safe for farmland.
“What happens when those solar arrays no longer work, or they become antiquated? Or farmland loses its agricultural designation and becomes zoned commercial? How does that impact ag districting in general? Does that land just become commercial? Can it go back to being agricultural land?” Fox asked. “If you were to talk to a group of farmers about solar, I would guarantee none of them would say anything about the emotional aspect of it. I don’t think that's what it really is for them. [And] if it’s emotional, it’s wrapped around the economics of it.”
Surveys of farmers have hinted that fears could be assuaged if developers took steps to make their projects more harmonious with agricultural work. As we reported last week, a survey by the independent research arm of the Solar Energy Industries Association found up to 70% of farmers they spoke with said they were “open to large-scale solar” but many sought stipulations for dual usage of the land for farming – a practice known as agrivoltaics.
Clearly, agrivoltaics and other simultaneous use strategies are what the industry wants to promote. As we hit send on last week’s newsletter, I was strolling around RE+, renewable energy’s largest U.S. industry conference. Everywhere I turned, I found publicity around solar and farming.
The Department of Energy even got in on the action. At the same time as the conference, the department chose to announce a new wave of financial prizes for companies piloting simultaneous solar energy and farming techniques.
“In areas where there has been a lot of loss of farmland to development, solar is one more factor that I think has worried folks in some communities,” Becca Jones-Albertus, director of DOE’s solar energy technologies office, told me during an interview at the conference. However agri-voltaics offer “a really exciting strategy because it doesn’t make this an either or. It’s a yes and.”
It remains to be seen whether these attempts at harmony will resolve any of the discord.
One industry practice being marketed to farm communities that folks hope will soften opposition is sheep grazing at solar farms. At RE+, The American Solar Grazing Association, an advocacy group, debuted a documentary about the practice at the conference and had an outdoor site outside the showroom with sheep chilling underneath solar panel frames. The sheep display had a sign thanking sponsors including AES, Arevon, BP, EDF Renewables, and Pivot Energy.
Some developers like Avangrid have found grazing to be a useful way to mitigate physical project risks at solar farms in the Pacific Northwest. Out in rural Oregon and Washington, unkempt grasslands can present a serious fire risk. So after trying other methods, Avangrid partnered with an Oregon rancher, Cameron Krebs, who told me he understands why some farmers are skeptical about developers coming into their neck of the woods.
“Culturally speaking, this is agricultural land. These are communities that grow wheat and raise cattle. So my peers, when they put in the solar farms and they see it going out of production, that really bothers the community in general,” he said.
But Krebs doesn’t see solar farms with grazing the same way.
“It’s a retooling. It may not be corn production anymore. But we’re still going to need a lot of resources. We’re still going to need tire shops. I think there is a big fear that the solar companies will take the land out of production and then the meat shops and the food production would suffer because we don’t have that available on the landscape, but I think we can have utility scale solar that is healthy for our communities. And that really in my mind means honoring that soil with good vegetation.”
It’s important to note, however, that grazing can’t really solve renewables’ farmland problem. Often grazing is most helpful in dry Western desert. Not to mention sheep aren’t representative of all livestock – they’re a small percentage. And Heatmap Pro’s database has found an important distinction between farms focused on crops versus livestock — the latter isn’t as predisposed to oppose renewable energy.
Ground zero for the future of renewables on farmland is Savion's proposed Oak Run project in Ohio, which at up to 800 megawatts of generation capacity would be the state’s largest solar farm. The developer also plans to let farmers plant and harvest crops in between the solar arrays, making it the nation’s largest agri-voltaics site if completed.
But Oak Run is still being opposed by nearby landowners and local officials citing impacts to farmland. At Oak Run’s proposed site, neighboring township governments have passed resolutions opposing construction, as has the county board of commissioners, and town and county officials sued to undo Oak Run’s approval at the Ohio Power Siting Board. Although that lawsuit was unsuccessful, its backers want to take the matter to the state Supreme Court.
Some of this might be tied to the pure fact Ohio is super hostile to renewables right now. Over a third of counties in the state have restricted or outright banned solar and wind projects, according to Heatmap Pro’s database.
But there’s more at play here. The attorney representing town and county officials is Jack Van Kley, a lawyer and former state government official who remains based in Ohio and who has represented many farms in court for myriad reasons. I talked to Van Kley last week for an hour about why he opposes renewables projects (“they’re anything but clean in my opinion”), his views on global warming (“I don’t get involved in the dispute over climate change”) and a crucial fact that might sting: He says at least roughly two thirds of his clientele are farmers or communities reliant on agricultural businesses.
“It’s neighbor against neighbor in these communities,” he told me. “You’ve got a relatively low number of farmers who want to lease their land so that the solar companies can put solar panels on them for thirty or forty years, and it’s just a few landowners that are profiting from these projects.”
Van Kley spoke to a concern voiced by his clients I haven’t really heard addressed by solar developers much: overall impacts to irrigation. Specifically, he said an outsized concern among farmers is simply how putting a solar or wind farm adjacent or close to their property will impact how groundwater and surface water moves in the area, which can impact somebody’s existing agricultural drainage infrastructure.
“If you do that next to another property that is being farmed, you’ll kill the crop because you’ll flood the crop,” he claimed. “This is turning out to be a big issue for farmers who are opposing these facilities.”
Some have tried to paint Van Kley as funded or assisted by the fossil fuel lobby or shadowy actors. Van Kley has denied any involvement in those kinds of backroom dealings. While there’s glimpses of evidence gas and coal money plays at least a minor role with other characters fomenting opposition in the state, I really have no evidence of him being one of these people right now. It’s much easier and simpler to reason that he’s being paid by another influential sect – large landowners, many of whom work in agriculture.
That’s the same conclusion John Boeckl reached. Boeckl, an Army engineer, is one of the property owners leasing land for construction of the Oak Run project. He supports Oak Run being built and has submitted testimony in the legal challenge over its approvals. Though Boeckl certainly wants to know more about who is funding the opposition and has his gripes with neighbors who keep putting signs on his property that say “no solar on prime farmland,” he hasn’t witnessed any corporate skullduggery from shadowy outside entities.
“I think it’s just farmers being farmers,” he said. “They don’t want to be told what to do with their land.”