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Perovskites hold a place of honor in the pantheon of much-heralded clean energy breakthroughs that have yet to actually arrive, alongside small modular nuclear reactors and solid-state batteries. In theory, these crystal structures could radically improve solar panels’ capabilities by absorbing wavelengths of light that conventional silicon cells can’t catch. But the stunning advances in R&D specimens have yet to infiltrate the cold, hard world of commercial solar manufacturing.
Tandem PV is now producing perovskite-coated glass panels 60 times larger than its R&D test size, in the hopes of commercializing highly efficient solar. (Tandem PV)
Perovskites hold a place of honor in the pantheon of much-heralded clean energy breakthroughs that have yet to actually arrive, alongside small modular nuclear reactors and solid-state batteries. In theory, these crystal structures could radically improve solar panels’ capabilities by absorbing wavelengths of light that conventional silicon cells can’t catch. But the stunning advances in R&D specimens have yet to infiltrate the cold, hard world of commercial solar manufacturing.
Startup Tandem PV is fighting to break that impasse with its new 65,000-square-foot perovskite factory in Fremont, California, the same Bay Area locale Tesla chose for large-scale electric vehicle manufacturing more than a decade ago. In an exclusive first look ahead of the facility’s April 21 grand opening, CEO Scott Wharton showed Canary Media via video chat how the automated factory line pumps out large panels of glass treated with a photovoltaic perovskite coating. Conventional silicon photovoltaic cells convert the sun’s rays to electricity with about 22% efficiency; layering them with Tandem’s perovskite glass in a “solar panel sandwich” lifts that efficiency to 30%, Wharton said.
That’s a huge jump for the solar industry: These paired, or “tandem,” solar plants could produce one-third more energy in the same physical footprint than regular solar panels on the market do today.
Tandem’s perovskite panels, which started rolling off the line in late January, are 60 times larger than what the company’s previous R&D line produced — but still one-quarter the size of large utility-scale solar panels.
“There’s only so much you can learn in the lab — then you have to build big things on bigger tools, otherwise you’re just not going to learn how to do that,” Wharton said. “And that’s the phase where we are at right now.”
To prove that performance, Tandem has agreements to sell panels to what Wharton called “a who’s who” of American solar developers for real-world testing in hot, cold, humid, and dry conditions around the country. Assuming field operations bear out Tandem’s claims of performance, the company expects to produce full-size perovskite panels starting in 2028 at a planned larger factory whose location has not been finalized.
Wharton kicked off the tour in the R&D lab, where technicians honed the company’s secret formula of perovskites and other chemicals on glass squares of 10 centimeters by 10 centimeters.
“The reason why we use this size is it’s big enough that it has all the failure modes of a very large panel, but it’s small enough that we can run lots of experiments, and it’s just not as expensive,” he explained.
The wet lab has an uncanny humanoid appearance: a row of beefy arms extends from elevated glass boxes, as if to firmly shake a row of hands. Those “arms” are actually gloves that workers use to slide their hands into the hermetically sealed enclosures to mix chemicals.
Which chemicals? “We don’t really share our formula, but they’re basically off-the-shelf stuff,” Wharton deflected.
The lab workers start by washing the glass for any impurities, and use a slot-die machine — commonly used to apply coatings to windowpanes and tempered glass — to deposit a 1-micron-thick layer of chemicals on the glass. Then, they place the glass in an annealing machine, which Wharton likened to a fancy hot plate, so that the perovskites crystallize properly.
Next door, in the dry lab, workers add additional layers of chemicals to transport electrons and protect the perovskite crystals. They do this through processes known as sputtering, evaporation, and atomic layer deposition. Afterward, they use a laser machine, about the height of an average person, to etch pinstripes in the glass, dividing it into thin strips that each function as cells.
The process differs entirely from silicon solar cell production. For instance, perovskites don’t need threads of silver to conduct electricity; thanks to the physical properties of perovskites themselves, electricity flows freely across their surface. They belong in the same family as thin-film solar, the alternative to conventional silicon that First Solar has been making in the U.S. for years, but few others have succeeded at.
The main event now happens across the hallway, where the pace ramps up considerably.
Instead of humans manually mixing the secret recipe ingredients, a series of robots combine the chemicals, wash and coat the much bigger glass panels, and roll them through the stations on an automated conveyor system. This automation not only allows for much faster production, Wharton noted, but also is far more precise than the work of human hands. Because of that, he hopes that the automated line, once fully calibrated, will churn out panels that perform even better than what his team produced in the lab.
The factory has the capacity to produce merely 40 megawatts each year; the largest U.S. solar panel factories churn out gigawatts annually. Tandem won’t max out its capacity, Wharton noted, because the goal is to prove that large-scale manufacturing works for perovskites, not to build a stockpile of panels to sell just yet.
For now, Tandem is honing its process engineering, translating techniques from the lab scale to the much bigger machinery, Wharton said. The line is making 10 to 20 panels a day during this learning phase, he said; by June, it should pump out identical panels that perform as well as or better than the R&D specimens.
“The goal would be to get thousands of panels out there to show that we can replicate the process, to show that we can have these outdoor trials with customers and with the national labs and others,” Wharton said.
Conventional silicon-based solar has taken over the grid, in the U.S. and globally, on the back of precipitous declines in cost. But it faces a long-term problem: There’s a theoretical limit to how efficient real-world silicon solar panels can be at converting sunlight to electricity, and that’s in the high 20% range. For tandem panels with perovskites, the theoretical limit is more like 45%, Wharton said.
“Even though we’re at 30%, there’s so much more room to improve, whereas silicon is kind of hitting its natural limits,” Wharton said. “They’ve basically squeezed almost all the lemon juice they’re going to get out of that lemon.”
Hence, the race to actually bring perovskites to market, pursued by the likes of Oxford PV, Swift Solar, Caelux, and others. So far, startups have publicized stunning efficiency records in a laboratory context that have not made their way into commercial products. Technology that works in a tiny test cell often works differently in a larger format. And perovskites tend to break down over time, losing their productivity far sooner than would be acceptable in grid infrastructure that has to run for decades. More broadly, venture-backed startups have raised billions of dollars to disrupt mainstream solar, with little to show for it after decades of work.
Greg Reichow, at venture capital firm Eclipse Ventures, had been searching for startups that could bring the kind of inflection point to solar that he’d experienced working at solar panel maker SunPower when it pushed the limits of efficiency in the early 2000s. He thought perovskites could be that next breakthrough, if a few pieces came together.
“We never saw somebody that can do both a big jump forward on efficiency, and do it at a demonstrated panel size that was relevant for an actual product, and demonstrate the durability that you need,” said Reichow, who ended up leading Tandem’s $50 million Series A fundraise last year. “When we met the team at Tandem, it was pretty clear that they had a path to go to all three.”
The initial customer orders have validated the economics for the product, Reichow added. The efficiency improvements are so large that they create project-wide savings for developers, reducing costs for land, labor, and other components, like steel and trackers. Those savings support a price point that will be profitable for Tandem, he said.
Unlike in earlier rounds of cleantech investment, the U.S. has made major strides toward building homegrown solar manufacturing to wean itself off China’s far better-established manufacturing base. But so far, U.S. factories have generally replicated the solar technology that is already being made on a much larger scale in China. Perovskites hold the promise of leapfrogging the state-of-the-art in the market today, giving the U.S. an advantage that hasn’t been secured by China already (at least, not yet). If that happened, the U.S. could produce much more domestic clean energy without additional dependence on the silicon supply chain that China has so intentionally and successfully dominated.
If Tandem or a competitor can produce working perovskites at large factory scale, there will finally be a growing industrial ecosystem to support widespread production in the U.S.
Offshore wind development has all but screeched to a halt in the United States amid the Trump administration’s unrelenting attacks. But in the rest of the world, it’s another story.
Wealthy and developing economies alike are embracing the energy source as they look to build out supplies of domestic and renewable electricity — a goal that is growing more urgent as the Middle East conflict leaves many nations short on oil and natural gas.
Global offshore wind capacity rose by over 9 gigawatts in 2025, up 16% from the previous year’s installations, bringing the world’s total offshore wind capacity to about 92 GW, the Global Wind Energy Council said in its latest annual report, released Monday. Land-based wind projects saw record gains, adding over 155 GW in 2025.
All told, nearly 1,300 GW of wind turbine installations are now providing power to nearly 140 countries worldwide, according to the international industry group.
About half that cumulative capacity — both offshore and on land — comes from China, which is building renewable energy at a breakneck speed to meet its surging power demand and reduce its reliance on fossil fuels.
The United Kingdom is also a global leader for offshore wind in particular. It added over a gigawatt last year, bringing its total offshore capacity to nearly 17 GW. In January, the government moved to grow that figure further, awarding 8.4 gigawatts’ worth of contracts to project developers. The auction, which was Europe’s biggest for offshore wind to date, set power prices that will be significantly cheaper than those from a new gas-fired power plant.
The U.K. joined nine European Union nations earlier this year in vowing to build 100 GW of the resource to transform the gusty North Sea into “the world’s largest clean energy reservoir” in order to help meet the region’s climate change targets.
Other land-constrained nations, primarily in Asia, are poised to propel the fledgling industry forward in the coming years. Japan, the Philippines, South Korea, and Vietnam have all recently launched auctions and programs to install gigawatts’ worth of turbines to power their growing economies and curb their dependence on oil and gas imports.
“Despite what you hear from the White House, offshore wind is alive and well,” said Rebecca Williams, deputy CEO of the Global Wind Energy Council. “Across a new set of emerging markets, we’re seeing governments really double down on momentum, and we’re also seeing that from the usual suspects.”
Globally, offshore wind installations are expected to continue growing over the coming years, albeit at a slower pace than once anticipated.
Between 2027 and 2030, countries other than China are expected to add an average of 11 GW in offshore wind installations every year — almost triple the levels from 2022 to 2024, according to the research firm BloombergNEF. China alone could add the same amount over that three-year period.
Farther ahead, the total capacity of offshore wind farms globally is set to reach about 486 GW by 2040, BNEF has forecast.
“In general, there is lots of negative news around offshore wind … but it is still a very, very large and global industry,” said Kajsa Jernetz, an offshore wind analyst at BNEF.
That negative news is real, however, with the most dramatic impact happening in the United States.
Since last year, President Donald Trump has halted new offshore wind leasing and tried, unsuccessfully, to stop construction of five in-progress wind farms in the U.S., three of which are now sending power to the East Coast’s grid.
Even before the politically driven attacks, project developers worldwide faced financial hardships and logistical challenges. High inflation and rising equipment costs, exacerbated by the Covid pandemic and Russia’s war in Ukraine, have made what are already multibillion-dollar energy installations even more expensive. Now, however, global energy firms like Denmark’s Ørsted and Norway’s Equinor have taken an additional hit after they were forced to pause work on fully permitted projects and cancel future developments off America’s Atlantic coast.
“That level of volatility is extreme when it comes to any infrastructure sector,” Williams said of the Trump administration’s actions, adding that they have had a “chilling effect on the offshore wind industry as a whole.”
Developers have reduced their investment budgets for the near term, due in part to U.S. headwinds but also to other major policy and supply chain challenges in China and Europe.
In 2025, companies won bids to build over 11 GW of future offshore wind capacity — one-fifth of the amount awarded in 2024, according to the Global Wind Energy Council.
For Europe in particular, “this is part of a bigger, negative spiral for offshore wind, where costs have increased, which means that projects get delayed, and in turn, project viability decreases,” Jernetz said. In response, Denmark, Germany, and the Netherlands announced plans to support developers by providing minimum revenue guarantees for offshore installations.
The energy crisis caused by the U.S.-Israeli strikes on Iran is expected to exacerbate some of the supply chain challenges faced by offshore wind — and every other major infrastructure project.
But on balance, the Middle East crisis is likely to bolster the case for investing in offshore wind, the CEO of Ørsted, Rasmus Errboe, told Reuters earlier this month. Errboe was speaking about Europe, where gas prices are surging again, four years after the region drastically cut imports from Russia, spurring a severe gas-supply crunch.
But the same is true for other regions that rely heavily on imported fossil fuels to generate electricity, Williams said. Southeast Asia, for example, is seeing fuel prices soar because of disrupted flows through the Strait of Hormuz, a choke point for much of the world’s oil and gas supply, which has prompted Asian governments to adopt price caps and ration reserves.
“What we’re seeing now is an urgent sense from countries around their own energy security, resilience, and the desire to have self-determination,” Williams said. “In this really shifting geopolitical landscape … that imperative becomes ever more acute, and that’s the dynamic we’re seeing play out.”
Chaz Weatherford has a busy schedule. On a typical workday, the solar inspection technician for major U.S. rooftop solar company Freedom Forever drives to eight or nine homes across southern Arizona, checking to make sure their newly installed solar systems are safely configured and ready to turn on. Sometimes it’s hard to stay on schedule — especially when he has to wait around for hours for a city or county inspector to show up to review his work.
An employee of Lumina Solar uses his smartphone to conduct a remote video inspection of a rooftop solar installation in Baltimore County, Maryland. (Lumina Solar)
But at homes within the jurisdiction of Pima County, Arizona, Weatherford doesn’t have to wait very long. That’s because the county is one of a growing number doing remote virtual inspections, which cuts the time its inspectors need to approve home solar projects from hours to minutes.
Weatherford uses his smartphone camera to take photos and videos of everything on his inspection checklist: a home’s main electrical panel and the breakers within it, the disconnect switch, the electrical meter, and all the wires and conduits connecting them. Then, he sends those digital records to the county’s inspection office.
Soon after, “we get an email back saying if we’ve passed or not — and if not, there are instructions on how to fix it,” he said.
That’s good for Freedom Forever, for the homeowners who are installing solar, and for the county inspectors, he said.
Solar, battery, and home electrification advocates say the benefits of a virtual inspection make it a no-brainer policy. Any steps that can reduce the cost of rooftop solar are critical right now. Utility bills are rising nationwide, making home solar especially useful to households. But in the U.S., these systems are far more expensive than they are in most other countries. It doesn’t help that the Trump administration scrapped federal tax credits for rooftop solar last year.
Right now, just a few states have efficient permitting practices for rooftop solar and home battery projects, according to a recent report produced by advocacy nonprofits Environment America and Frontier Group.
While the report names streamlining installations via third-party and remote inspections as one of the top reforms, the approach is used by only a relative handful of the more than 40,000 county, city, and local permitting jurisdictions in the U.S.
Many of those jurisdictions allowing the remote reviews are in California, which was also the first state to pass an instant-solar-permitting mandate. Arizona, Florida, and Texas also have a significant number of jurisdictions that have adopted virtual inspections; New York state’s NY-Sun solar and storage subsidy program requires them as a follow-up to on-site local inspectors.
The number of jurisdictions using the technique is likely to grow. A half dozen states have advanced or are considering bills to reform solar and battery permitting this year, according to Permit Power, a nonprofit that advocates for permitting reform for residential clean energy. Several of those bills would impose mandates if passed, and some would offer state support for jurisdictions that adopt virtual inspection.
One such bill is already poised to become law. In Maryland, a bill to streamline solar and battery permitting was wrapped into a broader energy package that passed the state’s Democratic-controlled legislature this month and now awaits the signature of Gov. Wes Moore, a Democrat.
“You’re seeing a real movement across both plug-in solar and more traditional solar and batteries to knock down the barriers and red tape that get in the way of American families buying and installing those systems,” said Nick Josefowitz, CEO of Permit Power.
The old adage is as true for solar permitting as it is for anything else: Time is money.
That’s why remote virtual inspections can add up to big savings, according to an exhaustive report from the Interstate Renewable Energy Council, a nonprofit clean-energy advocacy group. Using technology for virtual inspections can reduce costs by more than $30,000 per inspector annually, according to IREC, cutting expenses on vehicles and fuel as well as enabling inspectors to do roughly three times as many inspections per day.
Daniel Ice, a deputy director at Pima County’s development services department, certainly sees the savings on the ground. His office started doing virtual inspections for residential air-conditioning installations more than a decade ago, and has gradually expanded it to more tasks.
“We’re a large county — our inspectors were driving up to 150 miles per day,” he said. “This saved on our vehicle and fuel costs — and we could do more inspections.”
Like most building inspection departments, Pima County has more work than it has employees to do it, Ice said. Spending less time on everyday home solar inspections “freed up the planners to work on more complicated projects.”
Permit Power and other advocates want Pima County to become the rule — not the exception.
Statewide bills like Maryland’s are a good start to making that happen, said Erin Kelly, vice president of residential operations at Lumina Solar, an installer based in the state.
Maryland’s legislation will require counties to adopt online solar permitting by mid-2027, and it includes requirements that counties that can’t meet five-day turnarounds for these permit applications by mid-2028 “must offer a remote inspection option that provides inspection within five business days of a request.”
A few Maryland counties already offer virtual inspections, which have “saved a ton of time, a lot of headaches,” Kelly said. That’s particularly useful for follow-up inspections, which installers can respond to by fixing identified problems and sending in video evidence on the same day. Other counties, by contrast, can take from a day to more than a month to schedule on-site inspections and follow-ups, she said.
Not all Maryland counties are happy about adopting virtual inspections or online solar permitting, however. The Maryland Association of Counties warned state lawmakers in a March letter that “a highly prescriptive state mandate could undermine local flexibility, strain budgets, and compromise safety safeguards.”
Carla Blackwell, who led Pima County’s adoption of virtual inspections and instant solar permitting as director of its development services department before retiring last year, understands those concerns.
“We always hated when the state legislature got involved and passed some sort of mandate,” she said. “If you want to get people on board, you have to get them involved and part of the process — both so that they understand and support it and so they don’t sabotage it in some aspect.”
Pima County started using these technologies out of necessity, she added. The 2008 real-estate market crash forced her department to lay off about two-thirds of its staff, forcing it to find ways to do more with fewer employees.
It took some work. The county had to upgrade its permit management software to handle the new digital inputs, for example. That might not be a welcome prospect for smaller permitting agencies, she said. “The minute you mention IT to a government department, they’re like, ‘Uh-oh, I don’t want to deal with those guys.’”
But once the software is in place and employees are trained in using it, virtual inspections can improve the quality of work being done, she said. “I actually spend more time with you on these remote field inspections than if I had to drive out, spend five minutes, and then drive to the next one.”
Creating digital records of the projects can also help inspectors catch errors that brief on-site inspections can miss, she noted. That’s backed up by IREC’s report, which cited multiple building department officials affirming the benefits of being able to review photos and videos to do quality checks.
That’s true for more than solar and battery installations, said Colleen Corrigan, sustainability and resilience policy manager at the nonprofit San Francisco Bay Area Planning and Urban Research Association (SPUR). Her group and Permit Power are co-sponsoring a state bill that would give California homeowners the option of requesting remote inspections for water heaters, heat pumps, and rooftop solar installations. SPUR is also supporting another bill that would streamline permitting for heat pumps and plug-in solar systems.
“Permitting and inspection delays are these quiet but significant barriers to climate progress,” Corrigan said. The bills SPUR supports are aimed at “removing the friction at these key choke points in electrification,” she said.
But they’re also “rooted in best practices in jurisdictions already doing automated permitting or virtual inspections,” she added, as is happening in at least 19 places statewide, ranging from cities like Los Angeles and San Diego to rural areas such as Placer County in the Sierra Nevada.
Gabe Armstrong, acting chief building official at Placer County’s Community Development Resource Agency, estimated that the agency is eliminating about 3,900 driving miles per year by using remote video inspections. It also offers them on the same day that projects are completed, which is convenient for contractors who don’t want to have to come back the next day just to meet an inspector.
Armstrong’s agency also retains the right to show up in person to check the work, which it does from time to time as part of a quality-control audit, he said. To ensure contractors aren’t misrepresenting their work, “we only do live video inspections,” he said. “We need to know we are at the right jobsite, not looking at some random photo.” If contractors aren’t being honest, “we’ll turn them into the state contractor licensing board — and we’ll ban them from the RVI program.”
Some projects, like new home builds, require on-site visits, he said. And inspectors will still come out in person if the contractor or property owner requests it. But for approved projects like solar panel systems and heating, cooling, and air-conditioning installations, “we have these really large monitors, and we’ll pull up the plans on one side, and we can zoom in and read all the notes — and we can also zoom in on the work being inspected.”
Using video taken from solar installers on rooftops also avoids having to send inspectors up there to check their work, which eliminates safety hazards, Armstrong added. As for contractors, “usually once we get someone doing it, they become a repeat customer,” he said. “Being able to pick the exact inspection time — think about how much money you’re saving.”
Last year was a huge one for renewable energy around the globe — but nothing showed up quite like solar power.
This week, energy think tank Ember released its review of where the world’s electricity came from in 2025, and it’s full of wins for clean energy. Last year marked the first time global renewables generation exceeded coal, with solar, wind, hydropower, and biofuels delivering just under 34% of the world’s power to coal’s 33%.
That milestone couldn’t have happened without solar power, which last year overtook wind to become the world’s biggest renewable power source. Here are three more takeaways that spotlight solar’s growth — and why it’s on track to continue.
1. Lots of countries are relying more on solar power.
Megawatt for megawatt, China is the world’s undeniable solar leader. But many smaller countries get a higher share of their power from solar.
Last year, Chile got a full quarter of its power from solar, while Hungary relied on solar for 27% of its electricity. That’s a huge spike from 2020, when the clean energy source generated less than 10% of the power in each of those countries.
They’re not alone. At least 50 countries relied on solar for at least a tenth of their power last year, up from just 15 countries doing the same in 2020.
2. Solar’s midday peaks are reaching new heights.
It’s no surprise that solar power generation hits its peak around noon. That was clear across last May, when solar generated an average of 25% of the world’s electricity around midday.
That’s a big share, but some individual countries had even more impressive results. The Netherlands generated an average of 77% of its midday power from solar across May 2025, while Hungary got a whopping 91%, easily beating its previous monthlong record of 67%.
The next step for many of these countries? Installing more battery storage so they can hold on to that power when the sun goes down.
3. Fossil fuel–dependent countries have huge untapped solar potential.
Solar is proving itself as a clean solution to rising power demand, but many countries aren’t taking full advantage.
The U.S. saw the third-largest rise in its electricity demand of any country last year, but it met 88% of that new need with clean power. India, meanwhile, saw the second-highest demand growth (after China), yet met more than half of it with fossil fuels.
That doesn’t have to be the case. India gets a ton of sunlight that’s still going untapped, as do Saudi Arabia, Indonesia, Egypt, and other countries that are also still significantly expanding their fossil fuel use.
A judge this week temporarily halted the Trump administration’s enforcement of policies that had effectively blocked solar and wind projects that are on federal land or otherwise need a federal permit, Canary Media’s Maria Gallucci reports. Among the struck-down rules is a directive that required wind- and solar-related decisions to get Interior Secretary Doug Burgum’s personal sign-off, adding costly delays to many projects.
In their lawsuit, clean energy advocates argued that these roadblocks had led to roughly 57 GW of new “wind, solar, hybrid, and offshore wind capacity” being either canceled or put at risk of delay or termination, and jeopardized at least $905 million in investments.
Although the pause is only temporary as the lawsuit works its way through court, the judge in the case said the advocates are likely to succeed in proving the blockade violates federal law.
Global offshore wind soars as U.S. struggles continue
Offshore wind power is sailing forward in China, the United Kingdom, and beyond, according to a new report from the Global Wind Energy Council that Canary Media’s Maria Gallucci dug into this week. More than 9 GW of new offshore capacity came online in 2025, bringing the world’s total offshore wind capacity to about 92 GW.
But back in the U.S., the offshore wind blowback continues. The Trump administration recently made a deal to refund French developer TotalEnergies if it canceled its offshore wind leases, and now, French utility Engie says it’s in talks with the federal government to do the same. Turbine manufacturers are facing struggles of their own, with an American subsidiary of Germany’s EEW Group declaring bankruptcy in New Jersey. GE Renewables is meanwhile looking to get out of its turbine maintenance contract with Vineyard Wind, though a judge struck down its plan earlier this week.
When it comes to clean energy, China makes — and the world takes.
The country produces the vast majority of the globe’s solar panels, batteries, and wind turbine equipment, and most of its EVs. Plenty of that tech is used in China itself, but the country also exports a lot of it elsewhere.
In recent years, China has seen the most growth in its exports of EVs and batteries in particular. For both technologies, European nations have been the main destination.
In the EU, Chinese-made EVs accounted for 9% of sales in December 2025 — up from 6% the prior year. That acceleration happened even though the EU slapped duties on Chinese-made EVs in October 2024, in an attempt to protect its domestic automakers.
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Though China still makes more than 90% of the world’s solar panels, its exports have declined from their peak in early 2023 as two key markets — Europe and Brazil — have imported and installed solar at a slower pace. Asian countries imported more Chinese solar equipment than did any other region across most of last year.
China’s clean-energy manufacturing machine has taken on new relevance since late February, as U.S. and Israeli attacks on Iran have spurred a historic disruption of global oil and gas markets.
Asian countries are bearing the brunt of the current energy crisis. Some especially hard-hit nations are taking extreme conservation measures — encouraging people to use less air conditioning, work from home, and even ration fuel. But energy costs are also soaring in other places, like Europe, which relies heavily on imported fossil fuels. Americans, meanwhile, are paying higher prices at the gasoline pump, where a gallon has surpassed $4 on average.
It’s the latest reminder of the perils that come with depending on fossil fuel imports — and it’s prompting some countries to double down on renewable energy to insulate themselves from future price shocks. True, importing clean-energy tech is still importing, but it’s fundamentally different from relying on fossil fuels from abroad. With clean energy, you buy it once, roll it out, and for decades it does its job within your borders. That’s not so with fossil-fueled infrastructure.
Ultimately, even if other regions invest in building out their own domestic clean-energy supply chains, China is the clear beneficiary of the coming shift to cleantech. Its head start is just that big.
Canary Media’s “Electrified Life” column shares real-world tales, tips, and insights to demystify what individuals can do to shift their homes and lives to clean electric power.
Balcony solar is poised to take the U.S. by storm.
The DIY systems, which you can hang on a balcony and plug into a normal 120-volt outlet, help lower energy bills and carbon emissions. Already huge in Germany, solar that’s as easy to install as an appliance would be a game changer for the four out of 10 U.S. households that can’t get rooftop systems for financial or logistical reasons.
In 2025, deep-red Utah became the first state to pass a bill making it easier to adopt plug-in solar systems. So far this year, four more states have all advanced similar measures — and nearly two dozen others are weighing bills of their own.
Considering a balcony power plant yourself? Check our tracker to see the status of plug-in solar legislation in your state, and keep reading for some FAQs on the tech.
Balcony solar systems are modest in size, ranging from just one to a few solar panels. Most states, including California and New York, are considering capping systems at 1,200 watts — a sixth of the average home-solar installation.
The panels connect to an inverter that converts their direct current into alternating current, the kind our homes use. A plug from the inverter fits into a typical 120-volt outlet (15 or 20 amps), pumping the power of the sun directly into a home’s existing wiring.
The systems can cover a small but meaningful fraction of a home’s electricity use: An 800-watt unit can power the equivalent of a fridge or a few small appliances when the sun’s shining.
One or two people can set up a system in less than an hour without the help of a professional. In states with balcony solar laws, you don’t need permission from your utility, unlike when installing a larger rooftop array. Nor do you need to pay the utility a fee.
Balcony solar costs range from several hundred dollars to more than $1,000, depending on the system size, and can save a household hundreds of dollars per year.
In Los Angeles and the San Francisco Bay Area, for example, the plug-in solar nonprofit Bright Saver offers a two-panel, 800-watt system for $1,499 and a four-panel, 1,600-watt system for $2,348. (Because of utility rules, Bright Saver currently provides these products only to residents who already have rooftop solar and want to expand.)
At $1.47 to $1.87 per watt before taxes, that’s a pretty good deal in the U.S. Nationally, the average rooftop system costs $2.58 per watt before local and state incentives.
The payback period depends on how much electricity your home uses and your utility rate. But according to Bright Saver, these systems can save California households nearly $500 per year and have a payback period of four to five years.
Once they’re paid off, every sunny hour can provide you with free power for the life of the solar panels, many of which are warranted to last 30-plus years.
Absolutely. Physically, the panels can go anywhere they’re safely secured and able to soak up a lot of sun, such as a deck, patio, porch, fence, or yard.
Unless, of course, your home is subject to limiting regulations. Your city or homeowners’ association may have rules about where you can put solar panels. If you’re a renter, you’ll want to double-check your lease to make sure you’re not prohibited from hanging them outside.
Balcony solar produces electricity and sends it directly into the home’s circuitry at a wall outlet. Rooftop solar, by contrast, pours power into a home’s electrical panel.
That distinction has prompted some safety concerns, even as a few companies start to sell these products.
If the solar panels provide too much power, and circuit breakers don’t trip, the wires in the wall could overheat, creating a fire risk, said Ken Boyce, vice president of engineering at safety science company UL Solutions. If a person were to touch the plug prongs either while the panels are illuminated and partially plugged into an outlet or in the fraction of a second after the plug is disconnected but still energized, the individual could get shocked or electrocuted.
But these hazards can be tamed with technical fixes. For example, a special plug could be designed with a built-in circuit breaker and no exposed conductive parts.
In their plug-in solar bills, states are legislating that manufacturers adhere to rigorous standards to protect consumers. Utah’s law, for example, requires that systems are certified safe for consumers by UL Solutions or another nationally recognized testing laboratory, and that they meet the standards of the National Electric Code.
The National Electric Code doesn’t specifically address plug-in solar, leaving the tech in a legal gray area on that requirement. And as of publication, no manufacturer has had a complete balcony-solar product certified as safe.
But that could soon change. After Utah’s law passed, UL created a new safety standard for plug-in solar, UL 3700, and launched a certification program in January. The company is now working with manufacturers to get their systems certified. Boyce anticipates the first certification in “weeks to months rather than years.”
So, if you’re itching to get plug-in solar but concerned about safety, sit tight: A vetted product should hit the market soon.
And, bigger picture, take solace in the evidence from across the Atlantic.
Germany has seen balcony solar grow from roughly 40,000 systems in 2017 to as many as 4 million in 2025. Sebastian Müller, chair of the German Balcony Solar Association, said last year that the country had yet to see any safety issues beyond a few cases of individuals attempting to hook up unsuitable hardware, like a car battery, to the devices.
Not without a battery. For the safety of utility lineworkers, a blackout will trigger the inverter to stop putting out AC power. But if you plug the solar panels into a battery instead of an inverter that feeds your home, then you can pull the stored electrons when you need them.
That peace of mind isn’t cheap, though. For example, while EcoFlow’s inverter retails for $299, a 1.92-kilowatt-hour EcoFlow inverter-battery combo costs $1,199.
Indeed they are. Bright Saver estimates more than 1,000 plug-in solar systems have been installed in California alone.
Bentham Paulos, senior research associate for the Clean Energy States Alliance, recently installed a system at his home in Berkeley, California, for just $0.66 per watt. (He has a rooftop array, and his utility’s rules allow him to add up to 1,000 watts without another interconnection agreement.) To prepare, Paulos, who also authored a plug-in solar policy report released in January, spent many hours studying amps, volts, and wiring configurations on YouTube to assure himself that he could safely put plug-in solar on his garage.
The market for balcony solar could rapidly transform in the U.S. over the next year, as states green-light the tech and manufacturers roll out compliant products.
“I think a lot of companies are waiting for the regulatory landscape to be clear,” Paulos said. Once a handful of states explicitly allow balcony solar, he anticipates that manufacturers will show “a lot of innovation to make this a really super easy and safe consumer product.”
Balcony solar is one of the hottest ideas in renewable energy right now. Boosters say the systems — DIY kits that can be plugged right into a standard outlet — save users money without any need for subsidies, government incentives, or utility permission.
As Americans continue to struggle with soaring power prices, about half the states in the U.S. are considering legislation to pave the way for residents to adopt plug-in solar and start generating some of their own electricity from their own backyard or porch.
“It’s about energy affordability,” said Cora Stryker, co-founder of Bright Saver, a nonprofit that promotes plug-in solar. “Every legislator wants their constituency to have less trouble meeting their energy demands.”
As these efforts work their way through the legislative process, we will be monitoring the action here, using information from Bright Saver and bill-tracking databases.
Latest action: Maine Gov. Janet Mills (D) signed the state’s plug-in solar bill into law on April 6.
The Trump administration has often evoked the plight of whales in its efforts to undermine U.S. offshore wind development — despite there being no evidence that wind-farm activities are harming the giant mammals.
But those purported concerns didn’t stop federal officials last week from voting unanimously to override Endangered Species Act protections for imperiled whales in order to unleash oil and gas development in the Gulf of Mexico. Extensive fossil-fuel production there is already known to hurt cetaceans through vessel strikes, oil spills, and noises that lead to chronic stress.
The dissonance isn’t surprising.
In recent years, the well-being of whales has become a potent political weapon for President Donald Trump, Republican politicians, and right-wing groups to wield against America’s fledgling offshore wind industry. Yet those same factions haven’t fought with similar fervor, if at all, to protect whales from the real leading threats: marine-gear entanglements, boat collisions, and the effects of climate change.
Last week’s decision only highlights that whales were never really the point, environmentalists argue.
“I think it’s pretty clear they don’t care about marine species,” Michael Jasny, director of marine mammals for the Natural Resources Defense Council, said of the Trump administration.
On March 31, a committee of Trump-appointed officials voted to exempt oil and gas drilling in the Gulf from protections under the Endangered Species Act. The God Squad, so named because of its power to decide whether a species lives or dies, has convened only three other times since the landmark law was enacted over 50 years ago to prevent plant and animal extinctions.
The decision may not actually change that much on the ground for oil and gas companies developing and exploring resources in the Gulf. Operators are still expected to comply with existing measures to avoid and minimize environmental risks. These measures were set by the Interior Department’s Bureau of Ocean Energy Management, which is in charge of planning offshore drilling operations, and Bureau of Safety and Environmental Enforcement, which provides regulatory oversight.
“It’s not going to be like the wild, wild west under this order,” said Seth Barsky, a partner at the Bracewell law firm and former deputy assistant attorney general in the Environment and Natural Resources Division at the Justice Department.
He said that a key reason for lifting the Endangered Species Act requirements was to shield oil and gas developers from having to potentially meet new environmental regulations that could force them to shut down. Environmental groups last year sued the National Marine Fisheries Services over its latest biological opinion — a document the agency was required to issue under the ESA to analyze how oil and gas activities could affect wildlife in the Gulf. The groups argued that the opinion failed to require stringent measures to protect endangered species.
The God Squad decision gives drillers certainty that the status quo will stick, Barsky said.
Interior Secretary Doug Burgum chaired the seven-member committee, which also included the U.S. secretaries of defense, agriculture, and the Army, as well as the heads of the Environmental Protection Agency, the National Oceanic and Atmospheric Administration, and the Council of Economic Advisors.
The group claimed its decision was a “national security imperative.” Global energy markets have been in disarray since the start of the U.S.-Israeli war in Iran and the subsequent closure of the Strait of Hormuz, through which about a fifth of the world’s oil and a fifth of its liquefied natural gas supplies flow.
Oil production in the Gulf “provides a vital buffer, insulating our economy and military from foreign instability and reducing the strategic leverage of our adversaries,” Defense Secretary Pete Hegseth said during the committee’s brief meeting. He said the lawsuits brought by environmental groups risk “halting or severely compromising oil and gas activities in the Gulf.”
America’s offshore oil production has soared in recent years, even with endangered species protections in place.
Just a day after the meeting, Burgum announced that the U.S. produced over 714 million barrels in 2025 — the highest annual output on record. Some 3,500 oil and gas structures are spread across the Gulf, pumping out “beaucoup buckets of Texas tea,” as the journalist Craig Pittman recently put it.
The Interior Department also said last week that it is combining two of its bureaus in order to increase efficiency and accelerate permitting for offshore energy development, while still “maintaining all existing regulatory protections and rigorous safety standards,” according to the April 3 announcement.
Expanding offshore oil and gas development will likely only exacerbate the threats facing endangered whales, manatees, and five species of sea turtles in the Gulf, according to the fisheries agency’s biological opinion. Collisions with oil industry vessels in particular could “jeopardize the continued existence” of the endangered Rice’s whale, of which only 51 are estimated to remain.
The number of Rice’s whales has declined considerably since the 2010 BP Deepwater Horizon disaster and subsequent cleanup efforts. Its tiny population size makes it harder for the species to bounce back from oil-industry disruptions.
The God Squad’s main argument — that energy security trumps all else — is similar to the “downside emphasis” tactic that fossil fuel companies use to delay climate action, said Alaina Kinol, a researcher at Northeastern University in Boston who studies resistance to climate policy.
“It’s this idea that if we take climate action, it’s going to really hurt us, or it’s going to hurt marginalized people, or that [fossil fuels] are necessary for society,” she said.
She noted that even as the Trump administration pushes to boost fossil fuel production, it is undermining efforts to develop other domestic sources of energy like renewables. Since 2025, the GOP-led Congress has worked to repeal or scale back much of the 2022 Inflation Reduction Act, which provided hundreds of billions of dollars in federal incentives for wind and solar, energy efficiency, electric vehicles, and other clean energy programs.
“That implies that this is really about supporting the oil and gas industry’s ability to extract fossil fuels from the Gulf,” Kinol said.
In the last year, the Interior Department has frozen almost all offshore wind development in the country, and Trump himself has regularly cited the health of whales as a key motivation for this. “The windmills are driving the whales crazy,” Trump said in January 2025, weeks before signing an executive order pausing federal permitting and new leasing for offshore wind farms.
More recent actions to stymie existing projects have used broad and ill-defined concerns about national security as the pretext.
The department has even tried — so far unsuccessfully — to halt construction of five in-progress offshore wind projects totaling nearly 6 gigawatts of capacity, even though those projects represent a crucial new energy source for densely populated and land-constrained East Coast states. Earlier this year, during a brutal cold snap, power plants fueled by fossil gas, oil, and coal were nearly pushed to the brink, a strain that existing offshore wind turbines helped alleviate in some places.
The double standard is a familiar move for the Trump administration, which has previously used the specter of bald eagle deaths to crack down on wind turbines while also easing the protections for the birds that could interfere with oil and gas production. The federal government has also quietly gutted key research programs meant to protect North Atlantic right whales and other marine mammals living in an increasingly industrialized ocean.
The God Squad decision is already facing legal challenges, and experts say it’s unclear whether this unprecedented maneuver will stand up in court. The Center for Biological Diversity, which initially sued to stop the meeting from happening, said it would amend its lawsuit to challenge last week’s outcome. The Natural Resources Defense Council also plans to take legal action, Jasny said.
The move to exempt Gulf oil and gas development from Endangered Species Act protections is likely a “test case” to see what the Trump administration can get away with, he added. The government is also looking to open up oil and gas operations off the coast of Alaska to flex America’s “energy dominance” and off California’s coast to protect Americans’ “energy security.”
“If the administration can allow the killing of [endangered] sea turtles and whales in the Gulf,” Jasny said, “then there’s no end to what this really dangerous development can lead to.”
As a key deadline for federal solar tax credits ticks closer, a Massachusetts program is helping the state’s nonprofits get solar projects underway before the incentive disappears.
The Solar Upgrading Nonprofits, or SUN, program provides nonprofits with financial and technical assistance to evaluate options for solar installations and seek out additional funding if they choose to go forward. The first round, in 2025, worked with 23 organizations. Five have decided to move forward with installations that total 1.5 megawatts of installed capacity — double the goal for that phase of the program.
The stakes are even higher for SUN’s second round, which kicked off at the end of March. President Donald Trump’s One Big Beautiful Bill, signed last summer, put an expiration date on tax credits that can shave 30% to 50% off the cost of commercial-scale solar projects: They must start construction by July 4, 2026, or be placed in service by the end of 2027 to qualify — a tight timeline for most organizations.
“There is still time, but it is dwindling very quickly,” said Rachel Gentile, marketing and communications manager for Resonant Energy, the Boston-based solar company spearheading the initiative with funding from the Massachusetts Clean Energy Center, a quasi-public economic development agency.
Adding to the urgency is the fact that nonprofits have had relatively little time to take advantage of the tax credit. While for-profit businesses have been able to claim the incentive for some 20 years, nonprofits became eligible only with the passage of the Inflation Reduction Act in 2022. So, the elimination of the credit means it is disappearing before many organizations have even had a chance to dig into the possibilities.
“Nonprofits that have other missions that they’re dedicated to, it’s not necessarily on their list of priorities,” said Sanne Wright, community partnerships manager for Resonant Energy. “They’re already usually pretty strapped for cash and tight on capacity.”
The SUN program tries to overcome this barrier by making it easier for nonprofits to evaluate their options. The idea is modeled on another Resonant program, Solar Technical Assistance Retrofit, or STAR, which provides similar support to affordable housing providers looking to add solar to their buildings. Since its launch in 2021, STAR has installed 4.8 MW of solar capacity, with another 13.5 MW in the pipeline. When nonprofits became eligible for the federal tax credits, Resonant started thinking about how to adapt STAR for a new constituency.
The Massachusetts Clean Energy Center, which also funds STAR alongside the Jampart Charitable Trust, awarded the SUN program $150,000 for its first round and another $150,000 for the latest cycle. Resonant works with two partner agencies — Providers’ Council and the Essex County Community Foundation — to connect with nonprofits that might benefit from the assistance.
“Power is very expensive here,” said Kate Machet, vice president of systems initiatives and government relations for the Essex County Community Foundation. “This program has really allowed us to bring to our nonprofits on the ground the ability to explore solar.”
Interested organizations do a short intake call to discuss their general goals for a solar project. Then they provide information about their electricity bills and roof age and condition, and Resonant completes an analysis of their options. Whether or not the nonprofit decides to move forward, it receives a stipend of between $2,500 and $7,500 as compensation for the staff time that went into the process. Those that opt to go ahead with an installation receive help identifying further funding opportunities and writing grant applications.
Grow Associates, a nonprofit that serves adults with developmental disabilities, applied to the SUN program in hopes of getting solar on the roof of its facility south of Boston. The grant-writing support helped the organization secure a $500,000 award from a state program that funds solar projects for nonprofits working with low-income populations. The money will cover almost the entire cost of the planned 162-kilowatt array.
“Without their help, we would not have been able to get the grant,” said Sarah Palin, Grow’s executive director. “We’re looking at saving about $72,000 a year in electricity costs that we can put back into our programs.”
Resonant is accepting applications for this round of SUN until at least July, but it will continue adding participants after that deadline as long as the funding holds out.
Though Resonant is trying to help as many nonprofits as possible take advantage of the expiring tax credit, organizations that aren’t able to make the deadline could still benefit from participating in SUN and installing solar, Wright said. Finding the money to cover the initial costs will still be a challenge, but the average 300-kilowatt array could still save an organization about $1.3 million over the expected 25-year life of the system, down from $1.6 million with the tax credit, according to Resonant’s calculations.
“Organizations are going to have to get a little more creative about how they fund the project up front,” Wright said.
After taking a beating for the first year of the Trump administration, the beleaguered wind energy industry may finally see a glimmer of hope.
President Donald Trump and Interior Department chief Doug Burgum have spent months in an all-out assault against the technology, and in particular against offshore wind projects in federal waters. They have frozen all new leases, repealed clean energy tax credits, and even paid off an oil company to not build a planned wind project. The most dramatic move came in December, when Burgum paused work on five under-construction wind farms on “national security” grounds.
The developers of these five projects — two off the Massachusetts coastline, two south of Long Island, and one off the coast of Virginia — sued over the stop-work orders, and a series of federal judges soon issued injunctions against the Interior Department’s interventions.
Burgum had vowed to fight back, but last week, the department quietly let the final deadline for appealing the courts’ decisions lapse. The move means construction of the nation’s first five major wind farms along the eastern seaboard can continue absent a change in the case. When complete, the wind farms will generate enough electricity to power well over 2 million homes.
The lack of appeals likely represents a recognition that the government couldn’t stop the five projects from moving forward, said Tony Irish, who served as an Interior Department lawyer for decades before leaving in 2025.
“If the actual reason behind the stop-work orders was legitimately founded in national security, I would be very surprised by the lack of appeal,” he said. “So I think the lack of appeal is telling in that regard.”
Developers of the five major wind projects haven’t wasted time, with several of the projects already producing power. Revolution Wind, a project from Danish company Ørsted, delivered its first electricity to the New England grid in mid-March. Coastal Virginia Offshore Wind, a project from the Virginia utility Dominion, is about 70 percent complete and also delivered its first electricity last month. The farthest-along project, Vineyard Wind, produced a massive amount of electricity earlier this year during Winter Storm Fern when other power resources were offline.
The lack of appeals could be good news for future wind projects as well. A bipartisan group of senators has been debating a long-delayed “permitting reform” bill for months. The bill would speed up environmental review for critical energy projects, make it easier to build interstate transmission lines, and protect clean energy permits from federal interventions like those of the Trump administration. (It would also likely afford the same protections to oil and gas projects such as the Keystone XL pipeline, which President Joe Biden scrapped after taking office in 2021.)
Those bipartisan talks broke down after Burgum’s stop-work order. Senator Sheldon Whitehouse, a Democrat from Rhode Island who is leading the talks, told congressional Republicans and the Trump administration that they would only resume if the Interior Department declined to appeal the court injunctions for the offshore wind projects. Senate Democrats are also hoping to see Burgum advance solar projects on federal lands.
A potential thaw on offshore wind might benefit the president as he tries to manage the fallout from the Iran war, which has sent gasoline prices soaring and contributed to fears of an energy shortage around the world. The White House’s “energy dominance council” has begun participating in the congressional permitting talks.
“There’s a confluence of market realities that make this a particularly hopeful year for us,” said Chris Phalen, vice president of domestic policy at the National Association of Manufacturers, in an interview with Bloomberg Government. Proponents of permitting legislation stressed that the next few months before the midterm election season are pivotal for achieving a deal.
A broader set of reforms to the National Environmental Policy Act, the nation’s bedrock environmental permitting law, would be controversial, but research shows that it might accelerate the deployment of onshore wind energy: A recent survey of around 50 renewable developers found that around 80% of them had selected a project site so as to avoid the federal environmental permitting process.
Other developers reported that reviews for historical artifacts and endangered species can add months or years to project timelines, and that the reviews may have held up at least 11 gigawatts of energy, or enough to power almost 5 million homes. A reform effort, likely modeled on the House-passed “SPEED Act,” would aim to shorten review timelines and limit litigation. (The environmental review for the five in-progress offshore wind projects took multiple years, even under the wind-friendly Biden administration.)
“Bipartisan permitting reform is the next critical step,” said Liz Burdock, the CEO of the Oceantic Network, a trade group that advocates for offshore wind. She added that ease of permitting could enable millions more homes’ worth of new wind development, but warned that “without a predictable path to build, manufacturers, shipyards, and skilled workers are forced to sit idle, creating gaps that raise costs and delay benefits for millions of ratepayers.”
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