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Private providers have started returning to the fire-ravaged state, but its insurer of last resort still has huge and growing exposure.

The massive wildfires in Pacific Palisades and Altadena in Southern California may deal a devastating blow to the state’s fragile home insurance market, which is in the midst of large-scale reforms as part of an effort to lure private insurers back to the state.
In the years running up to yesterday’s, today’s, and likely tomorrow’s fires, several home insurers announced plans to stop writing new policies in California, or even leave the state entirely. The industry and many analysts blamed not just California’s famously hostile mix of dry vegetation, high winds, and scarce rains, but also a rise in construction and reinsurance costs and a regulatory system that made it difficult for insurers to raise rates or think prospectively about risk when setting rates.
In other words, it was simply easier for insurers to not renew policies than it was for them to increase rates to better adjust for risk. Some of these non-renewals occurred in the area now affected by the Eaton Fire in Altadena, though they were most prevalent in the Bay Area and the Sierra Nevada foothills.
In response, California’s insurance commissioner Ricardo Lara rolled out a set of reforms last year that tried to both expand insurance in wildfire prone areas and lure insurers back to the state. The new rules would allow insurers to use models to determine risk (not just historical data, as the law had previously been interpreted to allow) while also mandating that insurance companies operating in the state write policies in fire-prone areas as well as in those that are relatively safe. Lara then issued another rule late last year allowing insurers to use the cost of reinsurance in determining their rates, which insurers in the rest of the country are allowed to do.
Allstate, which announced in November, 2022 that it would stop writing new home insurance policies in California, said last spring that it was considering a return to the state based on the possibility of models being allowed for ratemaking. At the end of last year, partly in response to the reforms, Farmers also said that it would restart writing new policies for some lines of business in California, and that it would increase the number of new homeowners insurance policies it writes every month after instituting limits in 2023. Last week, Verisk submitted a model to project wildfire risk to the state for regulatory agency review for use in rate-setting.
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Consumer advocates have warned that these rules would lead to increases in insurance rates. So has Lara’s predecessor, Dave Jones, who has been skeptical of trying to grow the private insurance market by giving it more flexibility to set rates without addressing the core issues of climate change and fire management policy.
“In the long term, we’re not going to be able to ‘rate increase’ ourselves out of this problem,” he said in an interview with the University of California, pointing to Florida’s insurance problems as an example, despite the flexibility that insurers have in setting rates there. “In the short-and mid-term for California, giving insurers proposed higher rates will get them to start writing new insurance again — although many homes in the wildland urban interface will continue to face challenges. But in the longer term, higher rates alone are likely to be overwhelmed by the higher risks and losses from climate change — just like in Florida.”
Like Florida, California has a backup for the private market, an insurer of last resort. And, like Florida, it’s been trying to make it smaller, to little avail. It may now be so large as to place the rest of the state at financial risk.
California’s FAIR Plan is a fire insurance pool that all property and casualty insurers operating in the state contribute to in proportion to how much business they have in the state; homeowners turn to FAIR when they can’t get insurance otherwise. As the state has experienced massive wildfires and insurers have pulled out, the size of the FAIR Plan has ballooned, with exposure rising to $458 billion in 2024 from $153 billion in 2020, even as it explicitly says that its “goal is attrition” (i.e. getting customers back on normal insurance plans).
“It’s a socialized cost,” Kate Gordon, the chief executive of California Forward, a policy nonprofit, and former advisor to Secretary of Energy Jennifer Granholm, told me. “We see more and more people switching to the FAIR plan. It’s getting massively oversubscribed. It’s going to hit some kind of wall at some point.”
The communities with the most wildfire exposure for the insurer include vacation areas throughout the state such as Lake Arrowhead, Truckee, and Big Bear Lake, and affluent residential communities including Berkeley and the San Francisco suburb Orinda. They also include Pacific Palisades, the fifth most wildfire-exposed market for FAIR in Southern California, with some $5.9 billion of exposure.
While the fires have yet to be substantially contained, let alone extinguished, and the damage has not yet been calculated, the still-raging fires will likely constitute a major hit to the FAIR Plan and California insurers. The number of residential FAIR policies in the Pacific Palisades zip code grew by over 80% between 2023 and 2024, and has quadrupled since 2020. The total financial exposure for residential insurance in Pacific Palisades doubled in the past year, growing to almost $3 billion. In one zipcode affected by the fire in Altadena, residential FAIR plan policies grew by over 40% since 2020, with around $950 million of total exposure.
“As the risk of more climate change-intensified wildfires increases in California, a major wildfire in one geographical area concentrated with FAIR Plan-insured properties could overwhelm the FAIR Plan’s reserves and its capacity to quickly and fully pay consumers’ claims,” Lara wrote in a bulletin in September.
Like other states with insurers of last resort, the FAIR Plan can seek cash from insurers — which could, if the losses are large enough, extract “temporary supplemental fees from their own policyholders,” according to new California insurance regulations. This would mean that Californians who were able to buy private insurance — because they don’t live in a region of the state that insurers have abandoned — could be on the hook for massive wildfire losses. While such an assessment has not occurred since 1994, Victoria Roach, the FAIR Plan’s president, warned in a hearing before the State Assembly last March that a major fire could knock out the plan’s reserves and force it to go to insurers — and their policyholders — to shell out for the difference.
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The sale of Ravenswood Generating Station closed at the end of January.
New York City’s largest fossil fuel-fired power plant has changed hands. The Ravenswood Generating Station, which provides more than 20% of the city’s generation capacity, was sold by its former parent company LS Power to NRG, an energy company headquartered in Texas that owns power plants throughout the country.
It’s not yet clear what this means for “Renewable Ravenswood,” the former owner’s widely-publicized plans to convert the site into a clean energy hub. Prior to the sale, those plans were hanging by a thread. NRG did not respond to detailed questions about whether it will abandon or advance that vision.
“Ravenswood has been an important part of powering New York City for decades, and we recognize how much the facility matters to the surrounding community and the region,” a spokesperson for the company told me in an email. “We’ve begun engaging with community stakeholders and look forward to continuing those conversations in the months ahead. Our leadership team is carefully reviewing all relevant information and is taking a thoughtful, measured approach to any future decisions.”
Ravenswood is made up of four generating units: a natural gas combined cycle plant built in 2004, and three steam generators built in the 1960s that run mostly on natural gas, though sometimes also on oil. The plant is responsible for a sizable chunk of the city’s climate footprint. In 2023, the most recent year for which data is available, the plant emitted nearly 1.3 million metric tons of CO2, or about 8% of the city’s emissions from electricity production.
The Renewable Ravenswood concept was largely celebrated by the surrounding community, which includes two of the largest public housing projects in the country and suffers from disproportionately high rates of chronic respiratory diseases like asthma. The plan, which a local subsidiary of LS Power called Rise Light and Power proposed in 2022, entailed replacing the plant’s three 1960s steam generators with a combination of offshore wind, batteries, and renewable energy delivered from upstate New York via new power lines.
By last year, however, the plan was increasingly looking like a distant dream. Its centerpiece was a proposed offshore wind farm called Attentive Energy, but the project has been on ice since 2024, with little chance of moving forward under the Trump administration. This past November, New York regulators rejected a proposed transmission line that would have connected Ravenswood to a hypothetical future offshore wind development, primarily because there was no longer any such development in progress. Earlier this week, state energy regulators delivered yet another blow to potential offshore wind development when they decided not to solicit offers from for new projects to enter the state’s energy market.
Battery development has also had a rocky few years in New York State, which has affected Ravenswood’s transition. Rise Light and Power initially proposed building a 316-megawatt battery project on the site in 2019, but it has yet to break ground. The former CEO, Clint Plummer, previously told me that the company was waiting on New York State regulators to open up their anticipated battery solicitation, which would enable the project to bid into the New York energy market, before building the project. That solicitation opened last July, but it’s unclear whether the company submitted a bid. NRG did not respond to a question about this.
NRG first announced its plans to buy a fleet of natural gas plants — 18 in total — from LS Power in May 2025. Ravenswood was not mentioned in the press release or investor materials, however. “We're acquiring these assets at a significant discount to new build cost, at an attractive valuation, and at the strategically opportune time to be adding high-quality, difficult-to-replicate resources into our portfolio as the sector enters into a period of sustained demand growth,” NRG’s CEO Lawrence Coben told investors at the time.
The purchase was subject to regulatory approval and officially closed a few weeks ago, on January 30. Documents filed with the Securities and Exchange Commission confirm that Ravenswood was part of the deal. Documents filed with the New York Public Service Commission describe the terms in more detail, but they do not mention the proposed transition of the site to a clean energy hub.
Local officials, community groups, and tenant associations were deeply involved in fleshing out the Renewable Ravenswood vision. The Queens Borough President worked with the former owner on a multiyear report called “Reimagine Ravenswood,” released last summer, based on extensive engagement with the community, including public workshops, focus groups, interviews with local leaders, and a community survey. The report is evidence of high hopes the community has for the site’s transition, describing the potential to create jobs, expand public space, and generally increase investment in the neighborhood.
I reached out to many of the local elected officials and community groups that have publicly supported Renewable Ravenswood to ask if they were aware of the sale and whether NRG had made any commitments in regard to the transition plan. Just one responded. State Senator Kristen Gonzalez’s office told me they were aware of the sale, but declined to comment further.
Heron Power and DG Matrix each score big funding rounds, plus news for heat pumps and sustainable fashion.
While industries with major administrative tailwinds such as nuclear and geothermal have been hogging the funding headlines lately, this week brings some variety with news featuring the unassuming but ever-powerful transformer. Two solid-state transformer startups just announced back-to-back funding rounds, promising to bring greater efficiency and smarter services to the grid and data centers alike. Throw in capital supporting heat pump adoption and a new fund for sustainable fashion, and it looks like a week for celebrating some of the quieter climate tech solutions.
Transformers are the silent workhorses of the energy transition. These often-underappreciated devices step up voltage for long-distance electricity transmission and step it back down so that it can be safely delivered to homes and businesses. As electrification accelerates and data centers race to come online, demand for transformers has surged — more than doubling since 2019 — creating a supply crunch in the U.S. that’s slowing the deployment of clean energy projects.
Against this backdrop, startup Heron Power just raised a $140 million Series B round co-led by Andreessen Horowitz and Breakthrough Energy Ventures to build next-generation solid state transformers. The company said its tech will be able to replace or consolidate much of today’s bulky transformer infrastructure, enabling electricity to move more efficiently between low-voltage technologies like solar, batteries, and data centers and medium-voltage grids. Heron’s transformers also promise greater control than conventional equipment, using power electronics and software to actively manage electricity flows, whereas traditional transformers are largely passive devices designed to change voltage.
This new funding will allow Heron to build a U.S.manufacturing facility designed to produce around 40 gigawatts of transformer equipment annually; it expects to begin production there next year. This latest raise follows quickly on the heels of its $38 million Series A round last May, reflecting hunger among customers for more efficient and quicker to deploy grid infrastructure solutions. Early announced customers include the clean energy developer Intersect Power and the data center developer Crusoe.
It’s a good time to be a transformer startup. DG Matrix, which also develops solid-state transformers, closed a $60 million Series A this week, led by Engine Ventures. The company plans to use the funding to scale its manufacturing and supply chain as it looks to supply data centers with its power-conversion systems.
Solid-state transformers — which use semiconductors to convert and control electricity — have been in the research and development phase for decades. Now they’re finally reaching the stage of technical maturity needed for commercial deployment, driving a surge in activity across the industry. DG Matrix’s emphasis is on creating flexible power conversion solutions, marketing its product as the world’s first “multi-port” solid-state transformer capable of managing and balancing electricity from multiple different sources at once.
“This Series A marks our transition from breakthrough technology to scaled infrastructure deployment,” Haroon Inam, DG Matrix’s CEO, said in a statement. “We are working with hyperscalers, energy companies, and industrial customers across North America and globally, with multiple gigawatt-class datacenters in the pipeline.” According to TechCrunch, data centers make up roughly 90% of DG Matrix’s current customer base, as its transformers can significantly reduce the space data centers require for power conversion.
Zero Homes, a digital platform and marketplace that helps homeowners manage the heat pump installation process, just announced a $16.8 million Series A round led by climate tech investor Prelude Ventures. The company’s free smartphone app lets customers create a “digital twin” of their home — a virtual model that mirrors the real-world version, built from photos, videos, and utility data. This allows homeowners to get quotes, purchase, and plan for their HVAC upgrade without the need for a traditional in-person inspection. The company says this will cut overall project costs by 20% on average.
Zero works with a network of vetted independent installers across the U.S., with active projects in California, Colorado, Massachusetts, Minnesota, and Illinois. As the startup plans for national expansion, it’s already gained traction with some local governments, partnering with Chicago on its Green Homes initiative and netting $745,000 from Colorado’s Office of Economic Development to grow its operations in Denver.
Climactic, an early-stage climate tech VC, launched a new hybrid fund called Material Scale, aimed at helping sustainable materials and apparel startups navigate the so-called “valley of death” — the gap between early-stage funding and the later-stage capital needed to commercialize. As Climactic’s cofounder Josh Fesler explained on LinkedIn, the fund is designed to cover the extra costs involved with sustainable production, bridging the gap between the market price of conventional materials and the higher price of sustainable materials.
Structured as a “hybrid debt-equity platform,” the fund allows Climactic’s investors to either take a traditional equity stake in materials startups or provide them with capital in the form of loans. TechCrunch reports that the fund’s initial investments will come from an $11 million special purpose vehicle, a separate entity created to fund a small set of initial investments that sits outside Material Scale’s main investing pool.
The fashion industry accounts for roughly 10% of global emissions. “These days there are many alt materials startups that have moved through science and structural risk, have venture funding, credible supply chains and most importantly can achieve market price and positive gross margins just with scale,” Fesler wrote in his LinkedIn post. “They just need the capital to grow into their rightful commercial place.”
Clean energy stocks were up after the court ruled that the president lacked legal authority to impose the trade barriers.
The Supreme Court struck down several of Donald Trump’s tariffs — the “fentanyl” tariffs on Canada, Mexico, and China and the worldwide “reciprocal” tariffs ostensibly designed to cure the trade deficit — on Friday morning, ruling that they are illegal under the International Emergency Economic Powers Act.
The actual details of refunding tariffs will have to be addressed by lower courts. Meanwhile, the White House has previewed plans to quickly reimpose tariffs under other, better-established authorities.
The tariffs have weighed heavily on clean energy manufacturers, with several companies’ share prices falling dramatically in the wake of the initial announcements in April and tariff discussion dominating subsequent earnings calls. Now there’s been a sigh of relief, although many analysts expected the Court to be extremely skeptical of the Trump administration’s legal arguments for the tariffs.
The iShares Global Clean Energy ETF was up almost 1%, and shares in the solar manufacturer First Solar and the inverter company Enphase were up over 5% and 3%, respectively.
First Solar initially seemed like a winner of the trade barriers, however the company said during its first quarter earnings call last year that the high tariff rate and uncertainty about future policy negatively affected investments it had made in Asia for the U.S. market. Enphase, the inverter and battery company, reported that its gross margins included five percentage points of negative impact from reciprocal tariffs.
Trump unveiled the reciprocal tariffs on April 2, a.k.a. “liberation day,” and they have dominated decisionmaking and investor sentiment for clean energy companies. Despite extensive efforts to build an American supply chain, many U.S. clean energy companies — especially if they deal with batteries or solar — are still often dependent on imports, especially from Asia and specifically China.
In an April earnings call, Tesla’s chief financial officer said that the impact of tariffs on the company’s energy business would be “outsized.” The turbine manufacturer GE Vernova predicted hundreds of millions of dollars of new costs.
Companies scrambled and accelerated their efforts to source products and supplies from the United States, or at least anywhere other than China.
Even though the tariffs were quickly dialed back following a brutal market reaction, costs that were still being felt through the end of last year. Tesla said during its January earnings call that it expected margins to shrink in its energy business due to “policy uncertainty” and the “cost of tariffs.”