China To Generate Electricity From Compressed Air


China To Generate Electricity From Compressed Air

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China Compressed-Air Energy Storage enables grid flexibility using salt caverns in Jiangsu, delivering long-duration storage for wind and solar, 60 MW capacity, dispatchable power, and low-cost, safe, round-the-clock clean energy integration.

 

Key Points

Stores off-peak power by compressing air in salt caverns, then drives turbines on demand to balance renewables.

✅ 60 MW Jintan plant connects to grid; commercial CAES milestone

✅ Uses salt caverns; low-cost long-duration storage; high safety

✅ Balances wind and solar; improves grid flexibility and reliability

 

China is set to connect its first commercial compressed-air energy storage plant to the grid as it seeks more ways to harness fast-growing clean power resources, including new hydropower alongside other long-duration options such as gravity power technologies for around-the-clock use.

China Huaneng Group Co. said its Jiangsu Jintan Salt Cave project recently underwent four days of successful trials and is now ready for commercial operations. The 60-megawatt plant will be the largest compressed air energy storage plant built anywhere in the world since 1991, and the first in China outside of small-scale technology demonstration projects, as China's electricity demand patterns remain in flux, according to BloombergNEF.

The plant will use electricity at night when demand is low to pump air into an underground salt cavern. Then, when demand is high during the day, it can release the compressed air at high enough pressure to spin a turbine and produce electricity, aligning with projections that 60% electricity by 2060 could be reached according to industry outlooks.

Underground compressed air is considered one of the least costly forms of long-term energy storage and has low safety concerns, according to BloombergNEF. But its reliance on certain topographical features such as underground caverns may limit wider deployment, a challenge shared by other regions weighing large-scale storage options for reliability. It’s gained a foothold in China, with nearly four gigawatts of projects in the pipeline, while there are less than two gigawatts combined planned in the rest of the world. Shandong province said just this week in this year's work plan that it would build three projects using the technology.

The Jintan salt caves in Jiangsu, China’s second-biggest provincial economy just north of Shanghai, can store about 10 million cubic meters of gas, enough to power four gigawatts of compressed air plants, according to a Science and Technology Daily report from last year. 

Energy storage is a key part of China’s plan to build a larger and more flexible grid as it tries to peak carbon emissions before 2030 and zero them out before 2060, alongside continued nuclear energy development to stabilize baseload supply. The country is adding a world-leading amount of wind and solar power every year, but their intermittency strains grids that need to be able to deliver electricity all the time, spurring interest in green hydrogen as a flexible complement. China has set targets of 30 gigawatts of new-energy storage by 2025 and 120 gigawatts of pumped hydro storage by 2030. 

 

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Renewable Electricity Is Coming on Strong

Cascadia electrification accelerates renewable energy with wind and solar, EVs, heat pumps, and grid upgrades across British Columbia, Washington, and Oregon to decarbonize power, buildings, and transport at lower cost while creating jobs.

 

Key Points

Cascadia electrification is the shift to renewable grids, EVs, and heat pumps replacing fossil fuels.

✅ Wind and solar scale fast; gas and coal phase down

✅ EVs and heat pumps cut fuel costs and emissions

✅ Requires grid upgrades, policy, and social acceptance

 

Fifty years ago, a gasoline company’s TV ads showed an aging wooden windmill. As the wind died, it slowed to stillness. The ad asked: “But what do you do when the wind stops?” For the next several decades, fossil fuel providers and big utilities continued to denigrate renewable energy. Even the U.S. Energy Department deemed renewables “too rare, too diffuse, too distant, too uncertain and too ill-timed” to meaningfully contribute, as a top agency analyst put it in 2005.

Today we know that’s not true, especially in British Columbia, Washington and Oregon.

New research shows we could be collectively poised to pioneer a climate-friendly energy future for the globe — that renewable electricity can not only move Cascadia off of fossil fuels, but do so at an affordable price while creating some jobs along the way.

After decades of disinformation, this may sound like a wishful vision. But building a cleaner and more equitable economy — and doing so in just a few decades to head off the worst effects of climate change — is backed by a growing body of regional and international research.

Getting off fossil fuels is “feasible, necessary… and not very expensive” when compared to the earnings of the overall economy, said Jeffrey Sachs, an economist and global development expert at Columbia University.

Much of the confidence about the price tag comes down to this: Innovation and mass production have made wind and solar power installations cheaper than most fossil-fuelled power plants and today’s fastest-growing source of energy worldwide. The key to moving Cascadia’s economies away from fossil fuels, according to the latest research, is building more, prompting power companies to invest in carbon-free electricity as our go-to “fuel.”

However, doing that in time to help head off a cascading climatic crisis by mid-century means the region must take major steps in the next decade to speed the transition, researchers say. And that will require social buy-in.

The new research highlights three mutually supporting strategies that squeeze out fossil fuels:

Chefs and foodies are well-known fans of natural gas. Why, “Cooking with gas” is an expression for a reason. But one trendy Seattle restaurant-bar is getting by just fine with a climate-friendly alternative: electric induction cooktops.

Induction “burners” are just as controllable as gas burners and even faster to heat and cool, but produce less excess heat and zero air pollution. That made a huge difference to chef Stuart Lane’s predecessors when they launched Seattle cocktail bar Artusi 10 years ago.

Using induction meant they could squeeze more tables into the tight space available next door to Cascina Spinasse — their popular Italian restaurant in Seattle’s vibrant Capitol Hill neighborhood — and lowered the cost of expanding.

Rather than igniting a fossil fuel to roast the surface of pots and pans, induction burners generate a magnetic field that heats metal cookware from inside. For people at home, forgoing gas eliminates combustion by-products, which means fewer asthma attacks and other health impacts.

For Artusi, it eliminated the need for a pricey hood and fans to continuously pump fumes and heat out and pull fresh air in. That made induction the cheaper way to go, even though induction cooktops cost more than conventional gas ranges.

Over the years, they’ve expanded the menu because even guests who come for the signature Amari cocktails often stay for the handmade pasta, meatballs and seasonal sauces. So the initial pair of induction burners has multiplied to nine. Yet Artusi retains a cleaner, quieter and more intimate atmosphere. Yet thanks largely to the smaller fans, “it’s not as chaotic,” said Lane.

And Lane adds, it feels good to be cooking on electricity — which in Seattle proper is about 90 per cent renewable — rather than on a fossil fuel that produces climate-warming greenhouse gases. “You feel like you’re doing something right,” he said.

Lane says he wouldn’t be surprised if induction is the new normal for chefs entering the trade 10 years from now. “They probably would cook with gas and say, ‘Damn it’s hot in here!’” — Peter Fairley

This story is supported in part by a grant from the Fund for Investigative Journalism.

increasing energy efficiency to trim the amount of power we need,

boosting renewable energy to make it possible to turn off climate-wrecking fossil-fuel plants, and

plugging as much stuff as possible into the electrical grid.
Recent studies in B.C. and Washington state, and underway for Oregon, point to efficiency and electrification as the most cost-effective route to slashing emissions while maintaining lifestyles and maximizing jobs. A recent National Academies of Science study reached the same conclusion, calling electrification the core strategy for an equitable and economically advantageous energy transition, while abroad New Zealand's electrification push is asking whether electricity can replace fossil fuels in time.

However, technologies don’t emerge in a vacuum. The social and economic adjustments required by the wholesale shift from fossil fuels that belch climate-warming carbon emissions to renewable power can still make or break decarbonization, according to Jim Williams, a University of San Francisco energy expert whose simulation software tools have guided many national and regional energy plans, including two new U.S.-wide studies, a December 2020 analysis for Washington state and another in process for Oregon.

Williams points to vital actions that are liable to rile up those who lose money in the deal. Steps like letting trees grow many decades older before they are cut down, so they can suck up more carbon dioxide — which means forgoing quicker profits from selling timber. Or convincing rural communities and conservationists that they should accept power-transmission lines crossing farms and forests.

“It’s those kinds of policy questions and social acceptance questions that are the big challenges,” said Williams.

Washington, Oregon and B.C. already mandate growing supplies of renewable power and help cover the added cost of some electric equipment, and across the border efforts at cleaning up Canada's electricity are critical to meeting climate pledges. These include battery-powered cars, SUVs and pickups on the road. Heat pumps — air conditioners that run in reverse to push heat into a building — can replace furnaces. And, at industrial sites, electric machines can take the place of older mechanical systems, cutting costs and boosting reliability.

As these options drop in price they are weakening reliance on fossil fuels — even among professional chefs who’ve long sworn by cooking with gas (see sidebar: Cooking quick, clean and carbon-free).

“For each of the things that we enjoy and we need, there’s a pathway to do that without producing any greenhouse gas emissions,” said Jotham Peters, managing partner for Vancouver-based energy analysis firm Navius Research, whose clients include the B.C. government.


What the modelling tells us

Key to decarbonization planning for Cascadia are computer simulations of future conditions known as models. These projections take electrification and other options and run with them. Researchers run dozens of simulated potential future energy scenarios for a given region, tinkering with different variables: How much will energy demand grow? What happens if we can get 80 per cent of people into electric cars? What if it’s only 50 per cent? And so on.

Accelerating the transition requires large investments, this modelling shows. Plugging in millions of vehicles and heat pumps demands both brawnier and more flexible power systems, including more power lines and other infrastructure such as bridging the Alberta-B.C. electricity gap that communities often oppose. That demands both stronger policies and public acceptance. It means training and apprenticeships for the trades that must retrofit homes, and ensuring that all communities benefit — especially those disproportionately suffering from energy-related pollution in the fossil fuel era.

Consensus is imperative, but the new studies are bound to spark controversy. Because, while affordable, decarbonization is not free.

The Meikle Wind Project in BC’s Peace River region, the province’s largest, with 61 turbines producing 184.6 MW of electricity, went online in 2017. Photo: Pattern Development.
Projections for British Columbia and Washington suggest that decarbonizing Cascadia will spur extra job-stimulating growth. But the benefits and relatively low net cost mask a large swing in spending that will create winners and losers, and without policies to protect disadvantaged communities from potential energy cost increases, could leave some behind.

By 2030, the path to decarbonization shows Washingtonians buying about $5 billion less worth of natural gas, coal and petroleum products, while putting even more dollars toward cleaner vehicles and homes. No surprise then that oil and gas interests are attacking the new research.

And the research shows a likely economic speed bump around 2030. Economic growth would slow due to increased energy costs as economies race to make a sharp turn toward pollution reductions after nearly a decade of rising greenhouse gas emissions.

“Meeting that 2030 target is tough and I think it took everybody a little bit by surprise,” said Nancy Hirsh, executive director of the Seattle-based NW Energy Coalition, and co-chair of a state panel that shaped Washington’s recent energy supply planning.

But that’s not cause to ease up. Wait longer, says Hirsh, and the price will only rise.


Charging up

What most drives Cascadia’s energy models toward electrification is the dropping cost of renewable electricity.

Take solar energy. In 2010, no large power system in the world got more than three per cent of its electricity from solar. But over the past decade, solar energy’s cost fell more than 80 per cent, and by last year it was delivering over nine per cent of Germany’s electricity and over 19 per cent of California’s.

Government mandates and incentives helped get the trend started, and Canada's electricity progress underscores how costs continue to fall. Once prohibitively expensive, solar’s price now beats nuclear, coal and gas-fired power, and it’s expected to keep getting cheaper. The same goes for wind power, whose jumbo jet-sized composite blades bear no resemblance to the rickety machines once mocked by Big Oil.

In contrast, cleaning up gas- or coal-fired power plants by equipping them to capture their carbon pollution remains expensive even after decades of research and development and government incentives. Cost overruns and mechanical failures recently shuttered the world’s largest “low-carbon” coal-fired power plant in Texas after less than four years of operation.

Retrofits enabled this coal-fired plant in Texas to capture some of its carbon dioxide pollution, which was then injected into aging oil wells to revive production. But problems made the plant’s coal-fired power — which is being priced out by renewable energy — even less competitive and it was shut down after three years in 2020. Photo by NRG Energy.
Innovation and incentives are also making equipment that plugs into the grid cheaper. Electric options are good and getting better with a push from governments and a self-reinforcing cycle of performance improvement, mass production and increased demand.

Battery advances and cost cuts over the past decade have made owning an electric car cheaper, fuel included, than conventional cars. Electric heat pumps may be the next electric wave. They’re three to four times more efficient than electric baseboard heaters, save money over natural gas in most new homes, and work in Cascadia’s coldest zones.

Merran Smith, executive director of the Vancouver-based non-profit Clean Energy Canada, says that — as with electric cars five years ago — people don’t realize how much heat pumps have improved. “Heat pumps used to be big huge noisy things,” said Smith. “Now they’re a fraction of the size, they’re quiet and efficient.”

Electrifying certain industrial processes can also cut greenhouse gases at low cost. Surprisingly, even oil and gas drilling rigs and pipeline compressors can be converted to electric. Provincial utility BC Hydro is building new transmission lines to meet anticipated power demand from electrification of the fracking fields in northeastern British Columbia that supply much of Cascadia’s natural gas.


Simulating low-carbon living

The computer simulation tools guiding energy and climate strategies, unlike previous models that looked at individual sectors, take an economy-wide view. Planners can repeatedly run scenarios through sophisticated software, tinkering with their assumptions each time to answer cross-cutting questions such as: Should the limited supply of waste wood from forestry that can be sustainably removed from forests be burned in power plants? Or is it more valuable converted to biofuel for airplanes that can’t plug into the grid?

Evolved Energy Research, a San Francisco-based firm, analyzed the situation in Washington. Its algorithms are tuned using data about energy production and use today — down to the number and types of furnaces, stovetops or vehicles. It has expert assessments of future costs for equipment and fuels. And it knows the state’s mandated emissions targets.

Researchers run the model myriad times, simulating decisions about equipment and fuel purchases — such as whether restaurants stick with gas or switch to electric induction “burners” as their gas stoves wear out. The model finds the most cost-effective choices by homes and businesses that meet the state’s climate goals.

For Seattle wine bar Artusi, going with electric induction cooktops meant they could squeeze more tables into a tight, comfortable space. Standard burners cost less but would have required noisy, pricey fume hoods and fans to suck out the pollutants. For more, see sidebar. Photo: InvestigateWest.
Rather than accepting that optimal scenario and calling it a day, modellers account for uncertainty in their estimates of future costs by throwing in various additional constraints and rerunning the model.

That probing shows that longer reliance on climate-warming natural gas and petroleum fuels increases costs. In fact, all of the climate-protecting scenarios achieve Washington’s goals at relatively low cost, compared to the state’s historic spending on energy.

The end result of these scenarios are net-zero carbon emissions in 2050, echoing Canada's race to net-zero and the growing role of renewable energy, in which a small amount of emissions remaining are offset by rebounding forests or equipment that scrubs CO2 from the air.

But the seeds of that transformation must be sown by 2030. The scenarios identify common strategies that the state can pursue with low risk of future regrets.

One no brainer is to rapidly add wind and solar power to wring out CO2 emissions from Washington’s power sector. The projections end coal-fired power by 2025, as required by law, but also show that, with grid upgrades, gas-fired power plants that produce greenhouse gas emissions can stay turned off most of the time. That delivers about 16.2 million of the 44.8 million metric tons of CO2 emissions cut required by 2030 under state law.

All of the Washington scenarios also jack up electricity consumption to power cars and heating. By 2050, Washington homes and businesses would draw more than twice as much power from the grid as they did last year, meaning climate-friendly electricity is displacing climate-unfriendly gasoline, diesel fuel and natural gas. In the optimal case, electricity meets 98 per cent of transport energy in 2050, and over 80 per cent of building energy use.

By 2050, the high-electrification scenarios would create over 60,000 extra jobs across the state, as replacing old and inefficient equipment and construction of renewable power plants stimulates economic growth, according to projections from Washington, D.C.-based FTI Consulting. Scenarios with less electrification require more low-carbon fuels that cut emissions at higher cost, and thus create 15,000 to 35,000 fewer jobs.

Much of the new employment comes in middle-class positions — including about half of the total in construction — leading to big boosts in employment income. Washingtonians earn over $7 billion more in 2050 under the high-electrification scenarios, compared to a little over $5 billion if buildings stick with gas heating through 2050 and less than $2 billion with extra transportation fuels.


Rocketing to 2030

Evolved Energy’s electrification-heavy decarbonization pathways for Washington dovetail with a growing body of international research, such as that National Academy of Sciences report and a major U.S. decarbonization study led by Princeton University, and in Canada debates like Elizabeth May's 2030 renewable grid goal are testing feasibility. (See Grist’s 100 per cent Clean Energy video for a popularized view of similar pathways to slash U.S. carbon emissions, informed by Princeton modeller Jesse Jenkins.)

 

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UK leads G20 for share of electricity sourced from wind

UK Wind Power Leadership in 2020 highlights record renewable energy growth, G20-leading wind share, rapid coal phase-out, and rising solar integration, advancing decarbonization targets under the Paris Agreement and momentum ahead of COP26.

 

Key Points

The UK led the G20 in wind power share in 2020, displacing coal, expanding solar, and cutting power-sector emissions.

✅ G20-leading wind share; second for combined wind and solar

✅ Fastest coal decline among G20 from 2015 to 2020

✅ Emissions risk rising as post-pandemic demand returns

 

Nearly a quarter of the UK’s electricity came from wind turbines in 2020 – making the country the leader among the G20 for share of power sourced from the renewable energy, a new analysis finds.

The UK also moved away from coal power at a faster rate than any other G20 country from 2015 to 2020, according to the results.

And it ranked second in the G20, behind Germany, for the proportion of electricity sourced from both wind and solar in 2020, after first surpassing coal in 2016.

“It’s crazy how much wind power has grown in the UK and how much it has offset coal, and how it’s starting to eat at gas,” Dave Jones, Ember’s global lead analyst, told The Independent.

But it is important to bear in mind that “we’re only doing a great job by the standards of the rest of the world”, he added, noting that low-carbon generation stalled in 2019 in the UK.

Ember’s Global Electricity Review notes that the world’s power sector emissions were two per cent higher in 2020 than in 2015 – the year that countries agreed to slash their greenhouse gas pollution as part of the Paris Agreement.

Power generated from coal fell by a record amount from 2019 to 2020, the analysis finds. However, this decline was greatly facilitated by lockdowns introduced to stop the spread of Covid-19, as global electricity demand was temporarily stifled before rebounding, the analysts say.

Coal is the most polluting of the fossil fuels. The UK government hopes to convince all countries to stop building new coal-fired power stations at Cop26, a climate conference that is to be held in Glasgow later this year.

UN chief Antonio Guterres has also called for all countries to end their “deadly addiction to coal”.

At a summit held earlier this month, he described ending the use of coal in electricity generation as the “single most important step” to meeting the Paris Agreement’s goal of limiting global warming to well below 2C above pre-industrial levels by 2100.

“There is definitely a concern that, in the pandemic year of 2020, coal hasn’t fallen as fast as it needed to,” said Mr Jones, even as the UK set coal-free power records recently.

“There is concern that, once electricity demand returns, we won’t be seeing that decline in coal anymore.”

 

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"World?s Most Powerful? Tidal Turbine Starts Pumping Green Electricity To Onshore Grid

O2 Tidal Turbine delivers tidal energy in Orkney, Scotland, supplying grid-connected renewable power via EMEC and enabling green hydrogen production, providing clean electricity with predictable generation from strong coastal currents.

 

Key Points

A 2 MW, grid-connected tidal device in Orkney that delivers clean power and enables EMEC green hydrogen production.

✅ 2 MW capacity; powers ~2,000 UK homes via EMEC grid

✅ Predictable renewable output from strong coastal currents

✅ Enables onshore electrolyzer to produce green hydrogen

 

“The world’s most powerful” tidal turbine has been hooked up to the onshore electricity grid in Orkney, a northerly archipelago in Scotland, and is ready to provide homes with clean, green electricity, even as a major UK offshore windfarm begins supplying power this week.

The tidal turbine, known as the O2, was developed by Scottish engineering firm Orbital Marine Power. On July 28, they announced O2 “commenced grid connected power generation” at the European Marine Energy Centre (EMEC) in Orkney, meaning it's all set up and providing energy to the local power grid, similar to another Scottish tidal project that recently powered nearly 4,000 homes.

The 74-meter-long (242-foot) turbine is said to be “the world’s most powerful” tidal turbine. It will lay in the waters off Orkney for the next 15 years with the capacity to meet the annual electricity demand of around 2,000 UK homes. The 2MW turbine is also set to power the EMEC’s land-based electrolyzer that will generate green hydrogen (hydrogen made without fossil fuels) that can also be used as a clean energy source, in a UK energy system that recently set a wind generation record for output.

“Our vision is that this project is the trigger to the harnessing of tidal stream resources around the world and, alongside investment in UK offshore wind, to play a role in tackling climate change whilst creating a new, low-carbon industrial sector,” Orbital CEO, Andrew Scott, said in a press release.

Tidal energy is harnessed by converting energy from the natural rise and fall of ocean tides and currents. The O2 turbine consists of two submerged blades with a 20-meter (65-foot) diameter attached to a turbine that will move with the shifting currents of Orkney’s coast to generate electricity. Electricity is then transferred from the turbine along the seabed via cables towards the local onshore electricity network, a setup also being used by a Nova Scotia tidal project to supply the grid today.


This method of harnessing energy is not just desirable because it doesn't release carbon emissions, but it’s more predictable than other renewable energy sources, such as solar or Scotland's wind farms that can be influenced by weather conditions. Tidal energy production is still in its infancy and there are relatively few large-scale tidal power plants in the world, but many argue that some parts of the world could potentially draw huge benefits from this innovative form of hydropower, especially coastal regions with strong currents such as the northern stretches of the UK and the Bay of Fundy in Atlantic Canada.

The largest tidal power operation in the world is the Sihwa Lake project on the west coast of South Korea, which harnesses enough power to support the domestic needs of a city with a population of 500,000 people. However, once fully operational, the MeyGen tidal power project in northern Scotland hopes to snatch its title.

 

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Biden's Climate Bet Rests on Enacting a Clean Electricity Standard

Clean Electricity Standard drives Biden's infrastructure, grid decarbonization, and utility mandates, leveraging EPA regulation, renewables, nuclear, and carbon capture via reconciliation to reach 80% clean power by 2030 amid partisan Congress.

 

Key Points

A federal mandate to reach 80% clean U.S. power by 2030 using incentives and EPA rules to speed grid decarbonization.

✅ Targets 80% clean electricity by 2030 via Congress or reconciliation

✅ Mix of renewables, nuclear, gas with carbon capture allowed

✅ Backup levers: EPA rules, incentives, utility planning shifts

 

The true measure of President Biden’s climate ambition may be the clean electricity standard he tucked into his massive $2.2 trillion infrastructure spending plan.

Its goal is striking: 80% clean power in the United States by 2030.

The details, however, are vague. And so is Biden’s plan B if it fails—an uncertainty that’s worrisome to both activists and academics. The lack of a clear backup plan underscores the importance of passing a clean electricity standard, they say.

If the clean electricity standard doesn’t survive Congress, it will put pressure on the need to drive climate policy through targeted spending, said John Larsen, a power system analyst with the Rhodium Group, an economic consulting firm.

“I don’t think the game is lost at all if a clean electricity standard doesn’t get through in this round,” Larsen said. “But there’s a difference between not passing a clean electricity standard and passing the right spending package.”

In his few months in office, Biden has outlined plans to bring the United States back into the international Paris climate accord, pause oil and gas leasing on public lands, boost the electric vehicle market, and target clean energy investments in vulnerable communities, including plans to revitalize coal communities across the country, most affected by climate change.

But those are largely executive orders and spending proposals—even as early assessments show mixed results from climate law—and unlikely to last beyond his administration if the next president favors fossil fuel usage over climate policy. The clean electricity standard, which would decarbonize 80% of the electrical grid by 2030, is different.

It transforms Biden’s climate vision from a goal into a mandate. Passing it through Congress makes it that much harder for a future administration to undo. If Biden is in office for two terms, the United States would see a rate of decarbonization unparalleled in its history that would set a new bar for most of the world’s biggest economies.

But for now, the clean electricity standard faces an uncertain path through Congress and steep odds to getting enacted. That means there’s a good chance the administration will need a plan B, observers said.

Exactly what kind of climate spending can pass Congress is the very question the White House and congressional Democrats will be working on in the next few months, including upgrades to an aging power grid that affect renewables and EVs, as the infrastructure bill proceeds through Congress.

Negotiations are fraught already. Congress is almost evenly split between a party that wants to curtail the use of fossil fuels and another that wants to grow them, and even high energy prices have not necessarily triggered a green transition in the marketplace.

Senate Minority Leader Mitch McConnell (R-Ky.) said last week that “100% of my focus is on stopping this new administration.” He made similar comments at the start of the Obama administration and blocked climate policy from getting through Congress. He also said last week that no Republican senators would vote for Biden’s infrastructure spending plan.

A clean electricity standard has been referred to as the “backbone” of Biden’s climate policy—a way to ensure his policies to decarbonize the economy outlast a future president who would seek to roll back his climate work. Advocates say hitting that benchmark is an essential milestone in getting to a carbon-free grid by 2035. Much of President Obama’s climate policy, crafted largely through regulations and executive orders, proved vulnerable to President Trump’s rollbacks.

Biden appears to have learned from those lessons and wants to chart a new course to mitigate the worst effects of climate change. He’s using his majority in the House and Senate to lock in whatever he can before the 2022 midterms, when Democrats are expected to lose the House.

To pass a clean electricity standard, virtually every Democrat must be on board, and even then, the only chance of success is to pass a bill through the budget reconciliation process that can carry a clean electricity standard. Some Senate Democrats have recently hinted that they were willing to split the bill into pieces to get it through, while others are concerned that although this approach might win some GOP support on traditional infrastructure such as roads and bridges, it would isolate the climate provisions that make up more than half of the bill.

The most durable scenario for rapid electricity-sector decarbonization is to lock in a bipartisan clean electricity standard into legislation with 60 votes in the Senate, said Mike O’Boyle, the director of electricity policy for Energy Innovation. Because that’s highly unlikely—if not impossible—there are other paths that could get the United States to the 80% goal within the next decade.

“The next best approach is to either, or in combination, pursue EPA regulation of power plant pollution from existing and new power plants as well as to take a reconciliation-based approach to a clean electricity standard where you’re basically spending federal dollars to provide incentives to drive clean electricity deployment as opposed to a mandate per se,” he said.

Either way, O’Boyle said the introduction of the clean electricity standard sets a new bar for the federal government that likely would drive industry response even if it doesn’t get enacted. He compared it to the Clean Power Plan, Obama’s initiative to limit power plant emissions. Even though the plan never came to fruition, because of a Clean Power Plan rollback, it left a legacy that continues years later and wasn’t negated by a president who prioritized fossil fuels over the climate, he said.

“It never got enacted, but it still created a titanic shift in the way utilities plan their systems and proactively reposition themselves for future carbon regulation of their electricity systems,” O’Boyle said. “I think any action by the Biden administration or by Congress through reconciliation would have a similar catalytic function over the next couple years.”

Some don’t think a clean electricity standard has a doomed future. Right now, its provisions are vague. But they can be filled in in a way that doesn’t alienate Republicans or states more hesitant toward climate policy, said Sally Benson, an engineering professor at Stanford University and an expert on low-carbon energy systems. The United States is overdue for a federal mandate that lasts through multiple administrations. The only way to ensure that happens is to get Republican support.

She said that might be possible by making the clean electricity standard more flexible. Mandate the goals, she said, not how states get there. Going 100% renewable is not going to sell in some states or with some lawmakers, she added. For some regions, flexibility will mean keeping nuclear plants open. For others, it would mean using natural gas with carbon capture, Benson said.

While it might not meet the standards some progressives seek to end all fossil fuel usage, it would have a better chance of getting enacted and remaining in place through multiple presidents, she said. In fact, a clean electricity standard would provide a chance for carbon capture, which has been at the center of Republican climate policy proposals. Benson said carbon capture is not economical now, but the mandate of a standard could encourage investments that would drive the sector forward more rapidly.

“If it’s a plan that people see as shutting the door to nuclear or to natural gas plus carbon capture, I think we will face a lot of pushback,” she said. “Make it an inclusive plan with a specific goal of getting to zero emissions and there’s not one way to do it, meaning all renewables—I think that’s the thing that could garner a lot of industrial support to make progress.”

In addition to industry, Biden’s proposed clean electricity standard would drive states to do more, said Larsen of the Rhodium Group. Several states already have their own version of a clean energy standard and have driven much of the national progress on carbon emissions reduction in the last four years, he said. Biden has set a new benchmark that some states, including those with some of the biggest economies in the United States, would now likely exceed, he said.

“It is rare for the federal government to get out in front of leading states in clean energy policy,” he said. “This is not usually how climate policy diffusion works from the state level to the federal level; usually it’s states go ahead and the federal government adopts something that’s less ambitious.”

 

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Invenergy and GE Renewable Energy complete largest wind project constructed in North America

North Central Energy Facilities deliver 1,484 MW of renewable power in Oklahoma, uniting Invenergy, GE Renewable Energy, and AEP with the Traverse, Maverick, and Sundance wind farms, 531 turbines, grid-scale clean energy, and regional decarbonization.

 

Key Points

A 1,484 MW trio of Oklahoma wind farms by Invenergy with GE turbines, owned by AEP to supply regional customers.

✅ 1,484 MW capacity from 531 GE 2 MW platform turbines

✅ Largest single-phase wind farm: 998 MW Traverse

✅ Owned by AEP subsidiaries SWEPCO and PSO

 

Invenergy, the largest privately held global developer, owner and operator of sustainable energy solutions and GE Renewable Energy, today announced commercial operations for the 998-megawatt Traverse Wind Energy Center, the largest wind farm constructed in a single phase in North America, reflecting broader growth such as Enel's 450 MW project announced recently.

Located in north central Oklahoma, Traverse joins the operational 199-megawatt Sundance Wind Energy Center and the 287-megawatt Maverick Wind Energy Center, as the last of three projects developed by Invenergy for American Electric Power (AEP) to reach commercial operation, amid investor activity like WEC Energy's Illinois stake in wind assets this year. These projects make up the North Central Energy Facilities and have 531 GE turbines with a combined capacity of 1,484 megawatts, making them collectively among the largest wind energy facilities globally, even as new capacity comes online such as TransAlta's 119 MW addition in the US.

"This is a moment that Invenergy and our valued partners at AEP, GE Renewable Energy, and the gracious members of our home communities in Oklahoma have been looking forward to," said Jim Shield, Senior Executive Vice President and Development Business Leader at Invenergy, reflecting broader momentum as projects like Building Energy project begin operations nationwide. "With the completion of Traverse and with it the North Central Energy Facilities, we're proud to further our commitment to responsible, clean energy development and to advance our mission to build a sustainable world."

The North Central Energy Facilities represent a $2 billion capital investment in north central Oklahoma, mirroring Iowa wind investments that spur growth, directly investing in the local economy through new tax revenues and lease payments to participating landowners and will generate enough electricity to power 440,000 American homes.

"GE was honored to work with Invenergy on this milestone wind project, continuing our long-standing partnership," said Steve Swift, Global Commercial Leader for GE's Onshore Wind business, a view reinforced by projects like North Carolina's first wind farm coming online. "Wind power is a key element of driving decarbonization, and a dependable and affordable energy option here in the US and around the world. GE's 2 MW platform turbines are ideally suited to bring reliable and sustainable renewable energy to the region for many years to come."

AEP's subsidiaries Southwestern Electric Power Company (SWEPCO) and Public Service Company of Oklahoma (PSO) assumed ownership of the three wind farms upon start of commercial operations, alongside emerging interstate delivery efforts like Wyoming-to-California wind plans, to serve their customers in Arkansas, Louisiana and Oklahoma.

 

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US renewable energy hit record 28% in April.

U.S. Renewable Energy Record 28% signals a cleaner power grid as wind, solar, and hydroelectric output soar; EIA data shows cost-competitive clean energy reshaping the electricity mix and reducing carbon emissions across regions.

 

Key Points

EIA-reported April share of electricity from wind, solar, and hydro, reflecting cost-driven growth in U.S. clean power.

✅ Wind, solar additions dominated recent U.S. capacity buildouts

✅ Lower levelized costs make renewables most competitive

✅ Seasonal factors and outages lowered fossil and nuclear output

 

The amount of electricity generated by renewable resources hit a record 28% in April, a breakthrough number that shows how important renewable energy has become in U.S. energy markets as it surpassed coal in 2022 overall.

"It's a 'Wow' moment," said Peter Kelly-Detwiler, an energy analyst and author of "The Energy Switch," a recent book about the transition to a carbon-free energy economy.

The percentage of U.S. electricity produced by renewable energy from wind, solar and hydroelectric dams has been steadily rising, from 8.6% in April 2001 to this April's 28%. Those numbers were released this week by the U.S. Energy Information Administration, which tracks energy data for the nation.

What explains the surge?
There are several reasons. At the top is that wind and solar installations dominated U.S. energy buildouts.

"Basically, the only things we've added to the grid in the past decade are wind, solar and natural gas," said Harrison Fell, an economist and engineer at Columbia University, where he co-leads the Power Sector and Renewables Research Initiative.

That's happening for two reasons. The first is cost. Renewables are simply the most economically competitive power currently available, Kelly-Detwiler said.

In 2021, the cost of producing a megawatt-hour of electricity from a new wind turbine was $26 to $50. The same amount of electricity from the cheapest type of natural gas plant ranged from $45 to $74, according to Lazard, a financial advisory firm that publishes annual estimates of the cost of producing electricity. 

Federal and state mandates and incentives to increase the amount of clean energy used also help, Fell said, as renewables reached 25.5% of U.S. electricity recently. 

"When you do the math on what's the most profitable thing to add, it's often going to be wind and solar at this stage," he said.

Was weather a factor?
Yes. April tends to be a particularly windy month, and this spring was windier than most, Fell said.

There's also less power coming into the grid from fossil fuels and nuclear in the spring. That's because electricity demand is generally lower because of the mild weather and fossil fuel and nuclear power plants use the time for maintenance and refueling, which reduces their production, he said.

Another surprise was that in April, wind and solar power together produced more electricity than nuclear plants nationwide. 

Historically, nuclear power plants, which are carbon-neutral, have reliably produced about 20% of America's electricity. In April that number dropped to 18% while wind and solar combined stood at 19.6%.

The nuclear decrease is partly a result of the shutdown of two plants in the past year, Indian Point in New York state and Palisades in Michigan, as well as scheduled closures for maintenance.

Will the trend continue?
When all U.S. carbon-neutral energy sources are added together – nuclear, wind, hydroelectric and solar – almost 46% of U.S. electricity in April came from sources that don't contribute greenhouse gases to the environment, federal data shows.  

"It's a milestone," Kelly-Detwiler said. "But in a few years, we'll look back and say, 'This was a nice steppingstone to the next 'Wow!' moment."

 

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