California Built the World's Largest Solar Power Tower Plant. Now It May Close
Published on February 02, 2025 at 12:04AM
"Sometimes, government makes a bad bet..." writes the Los Angeles Times. Opening in 2014, the Ivanpah concentrated solar plant "quickly became known as an expensive, bird-killing eyesore." Assuming that state officials sign off — which they most likely will, because the deal will lead to lower bills for PG&E customers — two of the three towers will shut down come 2026. Ivanpah's owners haven't paid off the project's $1.6-billion federal loan, and it's unclear whether they'll be able to do so. Houston-based NRG Energy, which operates Ivanpah and is a co-owner with Kelvin Energy and Google, said that federal officials took part in the negotiations to close PG&E's towers and that the closure agreement will allow the federal government "to maximize the recovery of its loans." It's possible Ivanpah's third and final tower will close, too. An Edison spokesperson told me the utility is in "ongoing discussions" with the project's owners and the federal government over ending the utility's contract. It might be tempting to conclude government should stop placing bets and just let the market decide. But if it weren't for taxpayers dollars, large-scale solar farms, which in 2023 produced 17% of California's power, might never have matured into low-cost, reliable electricity sources capable of displacing planet-warming fossil fuels. More than a decade ago, federal loans helped finance some of the nation's first big solar-panel farms. Not every government investment will be a winner. Renewable energy critics still raise the specter of Solyndra, a solar panel manufacturer that filed for bankruptcy in 2011 after receiving a $535-million federal loan. But on the whole, clean power investments have worked out. The U.S. Department of Energy reported that as of Dec. 31, it had disbursed $40.5 billion in loans. Of that amount, $15.2 billion had already been repaid. The federal government was on the hook for $1.03 billion in estimated losses but had reaped $5.6 billion in interest. The article notes recent U.S. energy-related loans to a lithium mine in Nevada (close to $1 billion) and $15 billion to expand hydropower, upgrade power lines, and add batteries. Some of the loans won't get paid back "If federal officials are doing their jobs well," the article adds. "That's the risk inherent to betting on early-stage technologies." About the Ivanpah solar towers, they write "Maybe they never should have been built. They're too expensive, they don't work right, they kill too many birds... It's good that their time is coming to an end. But we should take inspiration from them, too: Don't get complacent. Keep trying new things." PG&E says their objective at the time was partly to "support new technologies," with one senior director of commercial procurement noting "It's not clear in the early stages what technologies will work best and be most affordable for customers. Solar photovoltaic panels and battery energy storage were once unaffordable at large scale." But today they've calculated that ending their power agreements with Ivanpah would cost customers "substantially less." And once deactivated, Ivanpah's units "will be decommissioned, providing an opportunity for the site to potentially be repurposed for renewable PV energy production," NRG said in a statement. The Las Vegas Review-Journal notes that instead the 3,500-acre, 386-megawatt concentrated thermal power plant used a much older technology, "a system of mirrors to reflect sunlight and generate thermal energy, which is then concentrated to power a steam engine." Throughout the day, 350,000 computer-controlled mirrors track the sunlight and reflect it onto boilers atop 459-foot towers to generate AC. Nowadays, photovoltaic solar has surpassed concentrated solar power and become the dominant choice for renewable, clean energy, being more cost effective and flexible... So many birds have been victims of the plant's concentrated sun rays that workers referred to them as "streamers," for the smoke plume that comes from birds that ignite in midair. When federal wildlife investigators visited the plant around 10 years ago, they reported an average of one "streamer" every two minutes. "Meanwhile, environmentalists continue to blame the Mojave Desert plant for killing thousands of birds and tortoises," reports the Associated Press. And a Sierra Club campaign organizer also says several rare plant species were destroyed during the plant's construction. "While the Sierra Club strongly supports innovative clean energy solutions and recognizes the urgent need to transition away from fossil fuels, Ivanpah demonstrated that not all renewable technologies are created equal."
Published on February 02, 2025 at 12:04AM
"Sometimes, government makes a bad bet..." writes the Los Angeles Times. Opening in 2014, the Ivanpah concentrated solar plant "quickly became known as an expensive, bird-killing eyesore." Assuming that state officials sign off — which they most likely will, because the deal will lead to lower bills for PG&E customers — two of the three towers will shut down come 2026. Ivanpah's owners haven't paid off the project's $1.6-billion federal loan, and it's unclear whether they'll be able to do so. Houston-based NRG Energy, which operates Ivanpah and is a co-owner with Kelvin Energy and Google, said that federal officials took part in the negotiations to close PG&E's towers and that the closure agreement will allow the federal government "to maximize the recovery of its loans." It's possible Ivanpah's third and final tower will close, too. An Edison spokesperson told me the utility is in "ongoing discussions" with the project's owners and the federal government over ending the utility's contract. It might be tempting to conclude government should stop placing bets and just let the market decide. But if it weren't for taxpayers dollars, large-scale solar farms, which in 2023 produced 17% of California's power, might never have matured into low-cost, reliable electricity sources capable of displacing planet-warming fossil fuels. More than a decade ago, federal loans helped finance some of the nation's first big solar-panel farms. Not every government investment will be a winner. Renewable energy critics still raise the specter of Solyndra, a solar panel manufacturer that filed for bankruptcy in 2011 after receiving a $535-million federal loan. But on the whole, clean power investments have worked out. The U.S. Department of Energy reported that as of Dec. 31, it had disbursed $40.5 billion in loans. Of that amount, $15.2 billion had already been repaid. The federal government was on the hook for $1.03 billion in estimated losses but had reaped $5.6 billion in interest. The article notes recent U.S. energy-related loans to a lithium mine in Nevada (close to $1 billion) and $15 billion to expand hydropower, upgrade power lines, and add batteries. Some of the loans won't get paid back "If federal officials are doing their jobs well," the article adds. "That's the risk inherent to betting on early-stage technologies." About the Ivanpah solar towers, they write "Maybe they never should have been built. They're too expensive, they don't work right, they kill too many birds... It's good that their time is coming to an end. But we should take inspiration from them, too: Don't get complacent. Keep trying new things." PG&E says their objective at the time was partly to "support new technologies," with one senior director of commercial procurement noting "It's not clear in the early stages what technologies will work best and be most affordable for customers. Solar photovoltaic panels and battery energy storage were once unaffordable at large scale." But today they've calculated that ending their power agreements with Ivanpah would cost customers "substantially less." And once deactivated, Ivanpah's units "will be decommissioned, providing an opportunity for the site to potentially be repurposed for renewable PV energy production," NRG said in a statement. The Las Vegas Review-Journal notes that instead the 3,500-acre, 386-megawatt concentrated thermal power plant used a much older technology, "a system of mirrors to reflect sunlight and generate thermal energy, which is then concentrated to power a steam engine." Throughout the day, 350,000 computer-controlled mirrors track the sunlight and reflect it onto boilers atop 459-foot towers to generate AC. Nowadays, photovoltaic solar has surpassed concentrated solar power and become the dominant choice for renewable, clean energy, being more cost effective and flexible... So many birds have been victims of the plant's concentrated sun rays that workers referred to them as "streamers," for the smoke plume that comes from birds that ignite in midair. When federal wildlife investigators visited the plant around 10 years ago, they reported an average of one "streamer" every two minutes. "Meanwhile, environmentalists continue to blame the Mojave Desert plant for killing thousands of birds and tortoises," reports the Associated Press. And a Sierra Club campaign organizer also says several rare plant species were destroyed during the plant's construction. "While the Sierra Club strongly supports innovative clean energy solutions and recognizes the urgent need to transition away from fossil fuels, Ivanpah demonstrated that not all renewable technologies are created equal."
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