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With policy chaos and disappearing subsidies in the U.S., suddenly the continent is looking like a great place to build.

Europe has long outpaced the U.S. in setting ambitious climate targets. Since the late 2000s, EU member states have enacted both a continent-wide carbon pricing scheme as well as legally binding renewable energy goals — measures that have grown increasingly ambitious over time and now extend across most sectors of the economy.
So of course domestic climate tech companies facing funding and regulatory struggles are now looking to the EU to deploy some of their first projects. “This is about money,” Po Bronson, a managing director at the deep tech venture firm SOSV told me. “This is about lifelines. It’s about where you can build.” Last year, Bronson launched a new Ireland-based fund to support advanced biomanufacturing and decarbonization startups open to co-locating in the country as they scale into the European market. Thus far, the fund has invested in companies working to make emissions-free fertilizers, sustainable aviation fuel, and biofuel for heavy industry.
It’s still rare to launch a fund abroad, and yet a growing number of U.S. companies and investors are turning to Europe to pilot new technology and validate their concepts before scaling up in more capital-constrained domestic markets.
Europe’s emissions trading scheme — and the comparably stable policy environment that makes investors confident it will last — gives emergent climate tech a greater chance at being cost competitive with fossil fuels. For Bronson, this made building a climate tech portfolio somewhere in Europe somewhat of a no-brainer. “In Europe, the regulations were essentially 10 years ahead of where we wanted the Americas and the Asias to be,” Bronson told me. “There were stricter regulations with faster deadlines. And they meant it.”
Of the choice to locate in Ireland, SOSV is in many ways following a model piloted by tech giants Google, Microsoft, Apple, and Meta, all of which established an early presence in the country as a gateway to the broader European market. Given Ireland’s English-speaking population, low corporate tax rate, business-friendly regulations, and easy direct flights to the continent, it’s a sensible choice — though as Bronson acknowledged, not a move that a company successfully fundraising in the U.S. would make.
It can certainly be tricky to manage projects and teams across oceans, and U.S. founders often struggle to find overseas talent with the level of technical expertise and startup experience they’re accustomed to at home. But for the many startups struggling with the fundraising grind, pivoting to Europe can offer a pathway for survival.
It doesn’t hurt that natural gas — the chief rival for many clean energy technologies — is quite a bit more expensive in Europe, especially since Russia’s invasion of Ukraine in 2022. “A lot of our commercial focus today is in Europe because the policy framework is there in Europe, and the underlying economics of energy are very different there,” Raffi Garabedian, CEO of Electric Hydrogen, told me. The company builds electrolyzers that produce green hydrogen, a clean fuel that can replace natural gas in applications ranging from heavy industry to long-haul transport.
But because gas is so cheap in the U.S., the economics of the once-hyped “hydrogen economy” have gotten challenging as policy incentives have disappeared. With natural gas in Texas hovering around $3 per thousand cubic feet, clean hydrogen just can’t compete. But “you go to Spain, where renewable power prices are comparable to what they are in Texas, and yet natural gas is eight bucks — because it’s LNG and imported by pipeline — it’s a very different context,” Garabedian explained.
Two years ago, the EU adopted REDIII — the third revision of its Renewable Energy Directive — which raises the bloc’s binding renewable share target to 42.5% by 2030 and broadens its scope to cover more sectors, including emissions from industrial processes and buildings. It also sets new rules for hydrogen, stipulating that by 2030, at least 42% of the hydrogen used for industrial processes such as steel or chemical production must be green — that is, produced using renewable electricity — increasing to 60% by 2035.
Member countries are now working to transpose these continent-wide regulations into national law, a process Garabedian expects to be finalized by the end of this year or early next. Then, he told me, companies will aim to scale up their projects to ensure that they’re operational by the 2030 deadline. Considering construction timelines, that “brings you to next year or the year after for when we’re going to see offtakes signed at much larger volumes,” Garabedian explained. Most European green hydrogen projects are aiming to help decarbonize petroleum, petrochemical, and biofuel refining, of all things, by replacing hydrogen produced via natural gas.
But that timeline is certainly not a given. Despite its many incentives, Europe has not been immune to the rash of global hydrogen project cancellations driven by high costs and lower than expected demand. As of now, while there are plenty of clean hydrogen projects in the works, only a very small percent have secured binding offtake agreements, and many experts disagree with Garabedian’s view that such agreements are either practical or imminent. Either way, the next few years will be highly determinative.
The thermal battery company Rondo Energy is also looking to the continent for early deployment opportunities, the startup’s Chief Innovation Officer John O’Donnell told me, though it started off close to home. Just a few weeks ago, Rondo turned on its first major system at an oil field in Central California, where it replaced a natural gas-powered boiler with a battery that charges from an off-grid solar array and discharges heat directly to the facility.
Much of the company’s current project pipeline, however, is in Europe, where it’s planning to install its batteries at a chemical plant in Germany, an industrial park in Denmark, and a brewery in Portugal. One reason these countries are attractive is that their utilities and regulators have made it easier for Rondo’s system to secure electricity at wholesale prices, thus allowing the company to take advantage of off-peak renewable energy rates to charge when energy is cheapest. U.S. regulations don’t readily allow for that.
“Every single project there, we’re delivering energy at a lower cost,” O’Donnell told me. He too cited the high price of natural gas in Europe as a key competitive advantage, pointing to the crippling effect energy prices have had on the German chemical industry in particular. “There’s a slow motion apocalypse because of energy supply that’s underway,” he said.
Europe has certainly proven to be a more welcoming and productive policy environment than the U.S., particularly since May, when the Trump administration cut billions of dollars in grants for industrial decarbonization projects — including two that were supposed to incorporate Rondo’s tech. One $75 million grant was for the beverage company Diageo, which planned to install heat batteries to decarbonize its operations in Illinois and Kentucky. Another $375 million grant was for the chemicals company Eastman, which wanted to use Rondo’s batteries at a plastics recycling plant in Texas.
While nobody knew exactly what programs the Trump administration would target, John Tough, co-founder at the software-focused venture firm Energize Capital, told me he’s long understood what a second Trump presidency would mean for the sector. Even before election night, Tough noticed U.S. climate investors clamming up, and was already working to raise a $430 million fund largely backed by European limited partners. So while 90% of the capital in the firm’s first fund came from the U.S., just 40% of the capital in this latest fund does.
“The European groups — the pension funds, sovereign wealth funds, the governments — the conviction they have is so high in climate solutions that our branding message just landed better there,” Tough told me. He estimates that about a quarter to a third of the firm’s portfolio companies are based in Europe, with many generating a significant portion of their revenue from the European market.
But that doesn’t mean it was easy for Energize to convince European LPs to throw their weight behind this latest fund. Since the American market often sets the tone for the global investment atmosphere, there was understandable concern among potential participants about the performance of all climate-focused companies, Tough explained.
Ultimately however, he convinced them that “the data we’re seeing on the ground is not consistent with the rhetoric that can come from the White House.” The strong performance of Energize’s investments, he said, reveals that utility and industrial customers are very much still looking to build a more decentralized, digitized, and clean grid. “The traction of our portfolio is actually the best it’s ever been, at the exact same time that the [U.S.-based] LPs stopped focusing on the space,” Tough told me.
But Europe can’t be a panacea for all of U.S. climate tech’s woes. As many of the experts I talked to noted, while Europe provides a strong environment for trialing new tech, it often lags when it comes to scale. To be globally competitive, the companies that are turning to Europe during this period of turmoil will eventually need to bring down their costs enough to thrive in markets that lack generous incentives and mandates.
But if Europe — with its infinitely more consistent and definitively more supportive policy landscape — can serve as a test bed for demonstrating both the viability of novel climate solutions and the potential to drive down their costs, then it’s certainly time to go all in. Because for many sectors — from green hydrogen to thermal batteries and sustainable transportation fuels — the U.S. has simply given up.
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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.”