China to upgrade Hunan power grid

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The State Grid Corporation of China (SGC) (Beijing) has decided to invest $340 million this year to improve the Hunan power grid's ability to withstand ice, according to Hunan Electric Power Company (Changsha), a subsidiary of SGC in Hunan Province.

From mid-January to mid-February of this year, the grid was greatly affected by the severe snowstorms that hit the country. The grid's transmission lines were encased in ice about 70 millimeters to 90 millimeters thick; the lines' designed limit was 15 millimeters to 20 millimeters.

The $340 million upgrade will cover six transmission lines with a total length of 531 kilometers and 38 crossovers at the 500-kilovolt (kV) level; 20 transmission lines with a total length of 733 kilometers and 38 crossovers at the 220 kV level; and 26 transmission lines with a total length of 452 kilometers and 165 crossovers at the 110 kV level.

Related departments of the SGC have been planning for various stages of the project, including tendering and construction. During construction, new technologies, new materials and new processes will be used. For instance, the application of multi-circuit, compact and narrow foundation steel pipe assembled towers will be adopted in 220 kV and 110 kV transmission lines.

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Brand New Renewable Technology Harnesses Electricity From The Cold, Dark Night

Nighttime Thermoelectric Generator converts radiative cooling into renewable energy, leveraging outer space cold; a Stanford-UCLA prototype complements solar, serving off-grid loads with low-power output during peak evening demand, using simple materials on a rooftop.

 

Key Points

A device converting nighttime radiative cooling into electricity, complementing solar for low-power evening needs.

✅ Uses thermocouples to convert temperature gradients to voltage.

✅ Exploits radiative cooling to outer space for night power.

✅ Complements solar; low-cost parts suit off-grid applications.

 

Two years ago, one freezing December night on a California rooftop, a tiny light shone weakly with a little help from the freezing night air. It wasn't a very bright glow. But it was enough to demonstrate the possibility of generating renewable power after the Sun goes down.

Working with Stanford University engineers Wei Li and Shanhui Fan, University of California Los Angeles materials scientist Aaswath Raman put together a device that produces a voltage by channelling the day's residual warmth into cooling air, effectively generating electricity from thin air with passive heat exchange.

"Our work highlights the many remaining opportunities for energy by taking advantage of the cold of outer space as a renewable energy resource," says Raman.

"We think this forms the basis of a complementary technology to solar. While the power output will always be substantially lower, it can operate at hours when solar cells cannot."

For all the merits of solar energy, it's just not a 24-7 source of power, although research into nighttime solar cells suggests new possibilities for after-dark generation. Sure, we can store it in a giant battery or use it to pump water up into a reservoir for later, but until we have more economical solutions, nighttime is going to be a quiet time for renewable solar power. 

Most of us return home from work as the Sun is setting, and that's when energy demands spike to meet our needs for heating, cooking, entertaining, and lighting.

Unfortunately, we often turn to fossil fuels to make up the shortfall. For those living off the grid, it could require limiting options and going without a few luxuries.

Shanhui Fan understands the need for a night time renewable power source well. He's worked on a number of similar devices, including carbon nanotube generators that scavenge ambient energy, and a recent piece of technology that flipped photovoltaics on its head by squeezing electricity from the glow of heat radiating out of the planet's Sun-warmed surface.

While that clever item relied on the optical qualities of a warm object, this alternative device makes use of the good old thermoelectric effect, similar to thin-film waste-heat harvesting approaches now explored.

Using a material called a thermocouple, engineers can convert a change in temperature into a difference in voltage, effectively turning thermal energy into electricity with a measurable voltage. This demands something relatively toasty on one side and a place for that heat energy to escape to on the other.

The theory is the easy part – the real challenge is in arranging the right thermoelectric materials in such a way that they'll generate a voltage from our cooling surrounds that makes it worthwhile.

To keep costs down, the team used simple, off-the-shelf items that pretty much any of us could easily get our hands on.

They put together a cheap thermoelectric generator and linked it with a black aluminium disk to shed heat in the night air as it faced the sky. The generator was placed inside a polystyrene enclosure sealed with a window transparent to infrared light, and linked to a single tiny LED.


 

For six hours one evening, the box was left to cool on a roof-top in Stanford as the temperature fell just below freezing. As the heat flowed from the ground into the sky, the small generator produced just enough current to make the light flicker to life.

At its best, the device generated around 0.8 milliwatts of power, corresponding to 25 milliwatts of power per square metre.

That might just be enough to keep a hearing aid working. String several together and you might just be able to keep your cat amused with a simple laser pointer. So we're not talking massive amounts of power.

But as far as prototypes go, it's a fantastic starting point. The team suggests that with the right tweaks and the right conditions, 500 milliwatts per square metre isn't out of the question.

"Beyond lighting, we believe this could be a broadly enabling approach to power generation suitable for remote locations, and anywhere where power generation at night is needed," says Raman.

While we search for big, bright ideas to drive the revolution for renewables, it's important to make sure we don't let the smaller, simpler solutions like these slip away quietly into the night.

This research was published in Joule.

 

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Greening Ontario's electricity grid would cost $400 billion: report

Ontario Electricity Grid Decarbonization outlines the IESO's net-zero pathway: $400B investment, nuclear expansion, renewables, hydrogen, storage, and demand management to double capacity by 2050 while initiating a 2027 natural gas moratorium.

 

Key Points

A 2050 plan to double capacity, retire gas, and invest $400B in nuclear, renewables, and storage for a net-zero grid.

✅ $400B over 25 years to meet net-zero electricity by 2050

✅ Capacity doubles to 88,000 MW; demand grows ~2% annually

✅ 2027 gas moratorium; build nuclear, renewables, storage

 

Ontario will need to spend $400 billion over the next 25 years in order to decarbonize the electricity grid and embrace clean power according to a new report by the province’s electricity system manager that’s now being considered by the Ford government.

The Independent System Electricity Operator (IESO) was tasked with laying out a path to reducing Ontario’s reliance on natural gas for electricity generation and what it would take to decarbonize the entire electricity grid by 2050.

Meeting the goal, the IESO concluded, will require an “aggressive” approach of doubling the electricity capacity in Ontario over the next two-and-a-half decades — from 42,000 MW to 88,000 MW — by investing in nuclear, hydrogen and wind and solar power while implementing conservation policies and managing demand.

“The process of fully eliminating emissions from the grid itself will be a significant and complex undertaking,” IESO president Lesley Gallinger said in a news release.

The road to decarbonization, the IESO said, begins with a moratorium on natural gas power generation starting in 2027 as long as the province has “sufficient, non-emitting supply” to meet the growing demands on the grid.

The approach, however, comes with significant risks.

The IESO said hydroelectric and nuclear facilities can take 10 to 15 years to build and if costs aren’t controlled the plan could drive up the price of clean electricity, turning homeowners and businesses away from electrification.

“Rapidly rising electricity costs could discourage electrification, stifle economic growth or hurt consumers with low incomes,” the report states.

The IESO said the province will need to take several “no regret” actions, including selecting sites and planning to construct new large-scale nuclear plants as well as hydroelectric and energy storage projects and expanding energy-efficiency programs beyond 2024.

READ MORE: Ontario faces calls to dramatically increase energy efficiency rebate programs

Ontario’s minister of energy didn’t immediately commit to implementing the recommendations, citing the need to consult with stakeholders first.

“I look forward to launching a consultation in the new year on next steps from today’s report, including the potential development of major nuclear, hydroelectric and transmissions projects,” Todd Smith said in a statement.

Currently, electricity demand is increasing by roughly two per cent per year, raising concerns Ontario could be short of electricity in the coming years as the manufacturing and transportation sectors electrify and as more sectors consider decarbonization.

At the same time, the province’s energy supply is facing “downward pressure” with the Pickering nuclear power plant slated to wind down operations and the Darlington nuclear generating station under active refurbishment.

To meet the energy need, the Ford government said it intended to extend the life of the Pickering plant until 2026.

READ MORE: Ontario planning to keep Pickering nuclear power station open until 2026

But to prepare for the increase, the Ontario government was told the province would also need to build new natural gas facilities to bridge Ontario’s electricity supply gap in the near term — a recommendation the Ford government agreed to.

The IESO said a request for proposals has been opened and the province is looking for host communities, with the expectation that existing facilities would be upgraded before projects on undeveloped land would be considered.

The IESO said the contract for any new facilities would expire in 2040, and all natural gas facilities would be retired in the 2040s.

 

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Europe Is Losing Nuclear Power Just When It Really Needs Energy

Europe's Nuclear Energy Policy shapes responses to the energy crisis, soaring gas prices, EU taxonomy rules, net-zero goals, renewables integration, baseload security, SMRs, and Russia-Ukraine geopolitics, exposing cultural, financial, and environmental divides.

 

Key Points

A policy guiding nuclear exits or expansion to balance energy security, net-zero goals, costs, and EU taxonomy.

✅ Divergent national stances: phase-outs vs. new builds

✅ Costs, delays, and waste challenge large reactors

✅ SMRs, renewables, and gas shape net-zero pathways

 

As the Fukushima disaster unfolded in Japan in 2011, then-German Chancellor Angela Merkel made a dramatic decision that delighted her country’s anti-nuclear movement: all reactors would be ditched.

What couldn’t have been predicted was that Europe would find itself mired in one of the worst energy crises in its history. A decade later, the continent’s biggest economy has shut down almost all its capacity already. The rest will be switched off at the end of 2022 — at the worst possible time.

Wholesale power prices are more than four times what they were at the start of the coronavirus pandemic. Governments are having to take emergency action to support domestic and industrial consumers faced with crippling bills, which could rise higher if the tension over Ukraine escalates. The crunch has not only exposed Europe’s supply vulnerabilities, but also the entrenched cultural and political divisions over the nuclear industry and a failure to forge a collective vision. 

Other regions meanwhile are cracking on, challenging the idea that nuclear power is in decline worldwide. China is moving fast on nuclear to try to clean up its air quality. Its suite of reactors is on track to surpass that of the U.S., the world’s largest, by as soon as the middle of this decade. Russia is moving forward with new stations at home and has more than 20 reactors confirmed or planned for export construction, according to the World Nuclear Association.

“I don’t think we’re ever going to see consensus across Europe with regards to the continued running of existing assets, let alone the construction of new ones,” said Peter Osbaldstone, research director for power and renewables at Wood Mackenzie Group Ltd. in the U.K. “It’s such a massive polarizer of opinions that national energy policy is required in strength over a sustained period to support new nuclear investment.” 

France, Europe’s most prolific nuclear energy producer, is promising an atomic renaissance as its output becomes less reliable. Britain plans to replace aging plants in the quest for cleaner, more reliable energy sources. The Netherlands wants to add more capacity, Poland also is seeking to join the nuclear club, and Finland is starting to produce electricity later this month from its first new plant in four decades. 

Belgium and Spain, meanwhile, are following Germany’s lead in abandoning nuclear, albeit on different timeframes. Austria rejected it in a referendum in 1978.

Nuclear power is seen by its proponents as vital to reaching net-zero targets worldwide. Once built, reactors supply low-carbon electricity all the time, unlike intermittent wind or solar.

Plants, though, take a decade or more to construct at best and the risk is high of running over time and over budget. Finland’s new Olkiluoto-3 unit is coming on line after a 12-year delay and billions of euros in financial overruns. 

Then there’s the waste, which stays hazardous for 100,000 years. For those reasons European Union members are still quarreling over whether nuclear even counts as sustainable.

Electorates are also split. Polling by YouGov Plc published in December found that Danes, Germans and Italians were far more nuclear-skeptic than the French, British or Spanish. 

“It comes down to politics,” said Vince Zabielski, partner at New York-based law firm Pillsbury Winthrop Shaw Pittman LLP, who was a nuclear engineer for 15 years. “Everything political ebbs and flows, but when the lights start going off people have a completely different perspective.”

 

What’s Behind Europe’s Skyrocketing Energy Prices

Indeed, there’s a risk of rolling blackouts this winter. Supply concerns plaguing Europe have sent gas and electricity prices to record levels and inflation has ballooned. There’s also mounting tension with Russia over a possible invasion of Ukraine, which could lead to disrupted supplies of gas. All this is strengthening the argument that Europe needs to reduce its dependence on international sources of gas.

Europe will need to invest 500 billion euros ($568 billion) in nuclear over the next 30 years to meet growing demand for electricity and achieve its carbon reduction targets, according to Thierry Breton, the EU’s internal market commissioner. His comments come after the bloc unveiled plans last month to allow certain natural gas and nuclear energy projects to be classified as sustainable investments. 

“Nuclear power is a very long-term investment and investors need some kind of guarantee that it will generate a payoff,” said Elina Brutschin at the International Institute for Applied Systems Analysis. In order to survive in liberalized economies like the EU, the technology needs policy support to help protect investors, she said.

That already looks like a tall order. The European Commission has been told by a key expert group that the labeling risks raising greenhouse gas emissions and undermining the bloc’s reputation as a bastion for environmentally friendly finance.

Austria has threatened to sue the European Commission over attempts to label atomic energy as green. The nation previously attempted a legal challenge, when the U.K. was still an EU member, to stop the construction of Electricite de France SA’s Hinkley Point C plant, in the west of England. It has also commenced litigation against new Russia-backed projects in neighboring Hungary.

Germany, which has missed its carbon emissions targets for the past two years, has been criticized by some environmentalists and climate scientists for shutting down a supply of clean power at the worst time, despite arguments for a nuclear option for climate policy. Its final three reactors will be halted this year. Yet that was never going to be reversed with the Greens part of the new coalition government. 

The contribution of renewables in Germany has almost tripled since the year before Fukushima, and was 42% of supply last year. That’s a drop from 46% from the year before and means the country’s new government will have to install some 3 gigawatts of renewables — equivalent to the generating capacity of three nuclear reactors — every year this decade to hit the country's 80% goal.

“Other countries don’t have this strong political background that goes back to three decades of anti-nuclear protests,” said Manuel Koehler, managing director of Aurora Energy Research Ltd., a company analyzing power markets and founded by Oxford University academics. 

At the heart of the issue is that countries with a history of nuclear weapons will be more likely to use the fuel for power generation. They will also have built an industry and jobs in civil engineering around that.

Germany’s Greens grew out of anti-nuclear protest movements against the stationing of U.S. nuclear missiles in West Germany. The 1986 Chernobyl meltdown, which sent plumes of radioactive fallout wafting over parts of western Europe, helped galvanize the broader population. Nuclear phase-out plans were originally laid out in 2002, but were put on hold by the country's conservative governments. The 2011 Fukushima meltdowns reinvigorated public debate, ultimately prompting Merkel to implement them.

It’s not easy to undo that commitment, said Mark Hibbs, a Bonn, Germany-based nuclear analyst at Carnegie Endowment for International Peace, or to envision any resurgence of nuclear in Germany soon: “These are strategic decisions, that have been taken long in advance.”

In France, President Emmanuel Macron is about to embark on a renewed embrace of nuclear power, even as a Franco-German nuclear dispute complicates the debate. The nation produces about two-thirds of its power from reactors and is the biggest exporter of electricity in Europe. Notably, that includes anti-nuclear Germany and Austria.

EDF, the world’s biggest nuclear plant operator, is urging the French government to support construction of six new large-scale reactors at an estimated cost of about 50 billion euros. The first of them would start generating in 2035.

But even France has faced setbacks. Development of new projects has been put on hold after years of technical issues at the Flamanville-3 project in Normandy. The plant is now scheduled to be completed next year. 

In the U.K., Business Secretary Kwasi Kwarteng said that the global gas price crisis underscores the need for more home-generated clean power. By 2024, five of Britain’s eight plants will be shuttered because they are too old. Hinkley Point C is due to be finished in 2026 and the government will make a final decision on another station before an election due in 2024. 

One solution is to build small modular reactors, or SMRs, which are quicker to construct and cheaper. The U.S. is at the forefront of efforts to design smaller nuclear systems with plans also underway in the U.K. and France. Yet they too have faced delays. SMR designs have existed for decades though face the same challenging economic metrics and safety and security regulations of big plants.

The trouble, as ever, is time. “Any investment decisions you make now aren’t going to come to fruition until the 2030s,” said Osbaldstone, the research director at Wood Mackenzie. “Nuclear isn’t an answer to the current energy crisis.”

 

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Turning thermal energy into electricity

Near-Field Thermophotovoltaics captures radiated energy across a nanoscale gap, using thin-film photovoltaic cells and indium gallium arsenide to boost power density and efficiency, enabling compact Army portable power from emitters via radiative heat transfer.

 

Key Points

A nanoscale TPV method capturing near-field photons for higher power density at lower emitter temperatures.

✅ Nanoscale gap boosts radiative transfer and usable photon flux

✅ Thin-film InGaAs cells recycle sub-band-gap photons via reflector

✅ Achieved ~5 kW/m2 power density with higher efficiency

 

With the addition of sensors and enhanced communication tools, providing lightweight, portable power has become even more challenging, with concepts such as power from falling snow illustrating how diverse new energy-harvesting approaches are. Army-funded research demonstrated a new approach to turning thermal energy into electricity that could provide compact and efficient power for Soldiers on future battlefields.

Hot objects radiate light in the form of photons into their surroundings. The emitted photons can be captured by a photovoltaic cell and converted to useful electric energy. This approach to energy conversion is called far-field thermophotovoltaics, or FF-TPVs, and has been under development for many years; however, it suffers from low power density and therefore requires high operating temperatures of the emitter.

The research, conducted at the University of Michigan and published in Nature Communications, demonstrates a new approach, where the separation between the emitter and the photovoltaic cell is reduced to the nanoscale, enabling much greater power output than what is possible with FF-TPVs for the same emitter temperature.

This approach, which enables capture of energy that is otherwise trapped in the near-field of the emitter is called near-field thermophotovoltaics or NF-TPV and uses custom-built photovoltaic cells and emitter designs ideal for near-field operating conditions, alongside emerging smart solar inverters that help manage conversion and delivery.

This technique exhibited a power density almost an order of magnitude higher than that for the best-reported near-field-TPV systems, while also operating at six-times higher efficiency, paving the way for future near-field-TPV applications, including remote microgrid deployments in extreme environments, according to Dr. Edgar Meyhofer, professor of mechanical engineering, University of Michigan.

"The Army uses large amounts of power during deployments and battlefield operations and must be carried by the Soldier or a weight constrained system," said Dr. Mike Waits, U.S. Army Combat Capabilities Development Command's Army Research Laboratory. "If successful, in the future near-field-TPVs could serve as more compact and higher efficiency power sources for Soldiers as these devices can function at lower operating temperatures than conventional TPVs."

The efficiency of a TPV device is characterized by how much of the total energy transfer between the emitter and the photovoltaic cell is used to excite the electron-hole pairs in the photovoltaic cell, where insights from near-light-speed conduction research help contextualize performance limits in semiconductors. While increasing the temperature of the emitter increases the number of photons above the band-gap of the cell, the number of sub band-gap photons that can heat up the photovoltaic cell need to be minimized.

"This was achieved by fabricating thin-film TPV cells with ultra-flat surfaces, and with a metal back reflector," said Dr. Stephen Forrest, professor of electrical and computer engineering, University of Michigan. "The photons above the band-gap of the cell are efficiently absorbed in the micron-thick semiconductor, while those below the band-gap are reflected back to the silicon emitter and recycled."

The team grew thin-film indium gallium arsenide photovoltaic cells on thick semiconductor substrates, and then peeled off the very thin semiconductor active region of the cell and transferred it to a silicon substrate, informing potential interfaces with home battery systems for distributed use.

All these innovations in device design and experimental approach resulted in a novel near-field TPV system that could complement distributed resources in virtual power plants for resilient operations.

"The team has achieved a record ~5 kW/m2 power output, which is an order of magnitude larger than systems previously reported in the literature," said Dr. Pramod Reddy, professor of mechanical engineering, University of Michigan.

Researchers also performed state-of-the-art theoretical calculations to estimate the performance of the photovoltaic cell at each temperature and gap size, informing hybrid designs with backup fuel cell solutions that extend battery life, and showed good agreement between the experiments and computational predictions.

"This current demonstration meets theoretical predictions of radiative heat transfer at the nanoscale, and directly shows the potential for developing future near-field TPV devices for Army applications in power and energy, communication and sensors," said Dr. Pani Varanasi, program manager, DEVCOM ARL that funded this work.

 

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Ontario will not renew electricity deal with Quebec

Ontario-Quebec Electricity Trade Agreement ends as Ontario pivots to IESO procurement, hydropower alternatives, natural gas capacity, and energy auctions, impacting grid reliability, power imports, and GHG emissions across both provincial markets.

 

Key Points

A seven-year power import pact; Ontario will end it, shifting to IESO procurement and gas capacity.

✅ Seasonal hydropower exchange of 2.3 TWh annually.

✅ IESO projects Quebec supply constraints by decade end.

✅ Ontario adds gas, auctions; near-term sector GHGs rise.

 

The Ontario government does not plan to renew the Ontario-Quebec electricity trade agreement, Radio-Canada is reporting.

The seven-year contract, which expires next year, aims to reduce Ontario's greenhouse gas (GHG) emissions by buying 2.3 Terawatt-hours of electricity from Quebec annually — that corresponds to about seven per cent of Hydro-Quebec's average annual exports.

The announcement comes as the provincially owned Quebec utility continues its legal battle over a plan to export power to Massachusetts.

The Ontario agreement has guaranteed a seasonal exchange of energy, since Quebec has a power surplus in summer, and the province's electricity needs increase in the winter. Ontario plans on exercising its last and only option in the summer of 2026, for a block of 500 megawatts.

The office of the Ontario Minister of Energy Todd Smith says the province will save money by relying "on a competitive procurement process" instead, amid debates over clean, affordable electricity policy in Ontario. And, the Independent Electricity System Operator (IESO), the equivalent of Hydro-Quebec in Ontario, added that, at any rate, Quebec is expected to "run out of electricity in the middle or at the end of the decade."

During the Quebec election campaign, Premier Francois Legault said his province needed to increase hydroelectricity production because he is expecting demand for hydroelectricity to increase by an additional 100 terawatt-hours in the coming decades — half of Hydro-Quebec's current annual output.

Coalition Avenir Quebec pitches more hydro dams to Quebec voters
The provinces will still continue to buy and sell power, reaching deals through annual energy auctions.

Eloise Edom, an associate researcher at Polytechnique Montreal's Institut de l'energie Trottier, says the announcement came as somewhat of a surprise because "we're still talking about a lot of energy."

Hydro-Quebec refused to comment on "the SIERE [Independent Electricity System Operator]'s intentions for the agreement, which ends next year," said company spokesperson Lynn St-Laurent.

No green options
Yet Ontario is running out of electricity, even as questions persist about whether it is embracing clean power to meet demand, in part because of plans to refurbish nuclear reactors at the Bruce and Darlington generator stations.

Windsor has already lost out on a $2.5-billion factory because the region is short of electricity for new industrial loads. And by 2025, Toronto will run out of power for the electrification of its transit system, according to the latest estimates from the IESO.

The Ford government recently announced that it hopes to extend the life of the Pickering nuclear station amid ongoing debate. It is also evaluating the possibility of increasing hydroelectricity production at its existing dams.

For now, Ontario is banking on its natural gas plants to meet demand, which have won most recent IESO tenders for contracts running until 2026. Last Friday, the province announced that it was going to buy an additional 1,500 megawatts by 2027.

"The [Ontario energy] minister's expectations may be that the increase in natural gas prices is temporary and that it will fade," energy economist Jean-Thomas Bernard said. "With this in mind, he probably does not want to sign a long-term contract [with Hydro-Quebec] and prefers to buy electricity on a day-to-day basis and through calls for tenders."

If the Quebec deal expires, Ontario, Canada's second highest GHG emitter, would have to increase its emissions for the sector, at least in the medium term, with electricity getting dirtier as gas fills the gap.

Last year, the IESO found that it would be very difficult to set a moratorium on natural gas before 2030. The IESO must produce a final report on the subject for the energy minister by the end of November.


 

 

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US Grid Gets an Overhaul for Renewables

FERC Transmission Planning Overhaul streamlines interregional grid buildouts, enabling high-voltage lines, renewable integration, and grid reliability to scale, cutting fossil reliance while boosting decarbonization, climate resilience, and affordability across regions facing demand and extreme weather.

 

Key Points

Federal rule updating interregional grid planning to integrate renewables, share costs, and improve reliability.

✅ Accelerates high-voltage, interregional lines for renewable transfer

✅ Optimizes transmission planning and cost allocation frameworks

✅ Boosts grid reliability, resilience, and emissions reductions

 

The US took a significant step towards a cleaner energy future on May 13th, 2024. The Federal Energy Regulatory Commission (FERC) approved the first major update to the country's electric transmission policy in over a decade, while congressional Democrats continue to push for action on aggregated DERs within FERC's remit today. This overhaul aims to streamline the process of building new power lines, specifically those that connect different regions. This improved connectivity is crucial for integrating more renewable energy sources like wind and solar into the national grid.

The current system faces challenges in handling the influx of renewables, and the aging U.S. grid amplifies those hurdles today. Renewable energy sources are variable by nature – the sun doesn't always shine, and the wind doesn't always blow. Traditionally, power grids have relied on constantly running power plants, like coal or natural gas, to meet electricity demands. These plants can be easily adjusted to produce more or less power as needed. However, renewable energy sources require a different approach.

The new FERC policy focuses on building more interregional transmission lines. These high-voltage power lines would allow electricity generated in regions with abundant solar or wind power, and even enable imports of green power from Canada in certain corridors, to be transmitted to areas with lower renewable energy resources. For example, solar energy produced in sunny states like California could be delivered to meet peak demand on the East Coast during hot summer days.

This improved connectivity offers several advantages. Firstly, it allows for a more efficient use of renewable resources. Secondly, it reduces the need for fossil fuel-based power plants, leading to cleaner air and lower greenhouse gas emissions. Finally, a more robust grid is better equipped to handle extreme weather events, which are becoming increasingly common due to climate change, and while Biden's climate law shows mixed results on decarbonization, stronger transmission supports resilience.

The need for an upgrade is undeniable. The Biden administration has set ambitious goals for decarbonizing the power sector by 2035, including proposals for a clean electricity standard as a pathway to those targets. A study by the US Department of Energy estimates that achieving this target will require more than doubling the country's regional transmission capacity and increasing interregional capacity by more than fivefold. The aging US grid is already struggling to keep up with current demands, and without significant improvements, it could face reliability issues in the future.

The FERC's decision has been met with praise from environmental groups and renewable energy companies. They see it as a critical step towards achieving a clean energy future. However, some stakeholders, including investor-owned utilities, have expressed concerns about the potential costs associated with building new transmission lines, citing persistent barriers to development identified in recent Senate testimony. Finding the right balance between efficiency, affordability, and environmental responsibility will be key to the success of this initiative.

The road ahead won't be easy. Building new power lines is a complex process that can face opposition from local communities, and broader disputes over electricity pricing changes often complicate planning and approvals. However, the potential benefits of a modernized grid are significant. By investing in this overhaul, the US is taking a crucial step towards a more reliable, sustainable, and cleaner energy future.

 

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