India and Sri Lanka plan undersea power transmission project

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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UK Clean Energy Supply Chain Delays are slowing decarbonization as transformer lead times, grid infrastructure bottlenecks, and battery storage contractors raise costs and risk 2030 targets despite manufacturing expansions by Siemens Energy and GE Vernova.

Key Points

Labor and equipment bottlenecks delay transformers and grid upgrades, risking the UK's 2030 clean power target.

✅ Transformer lead times doubled or tripled, raising project costs

✅ Grid infrastructure and battery storage contractors in short supply

✅ Firms expand capacity cautiously amid uncertain demand signals

The United Kingdom's ambitious plans to transition to clean energy are encountering significant obstacles due to prolonged delays in obtaining essential equipment such as transformers and other electrical components. These supply chain challenges are impeding the nation's progress toward decarbonizing its power sector by 2030, even as wind leads the power mix in key periods.

Supply Chain Challenges

The global surge in demand for renewable energy infrastructure, including large-scale storage solutions, has led to extended lead times for critical components. For example, Statera Energy's storage plant in Thurrock experienced a 16-month delay for transformers from Siemens Energy. Such delays threaten the UK's goal to decarbonize power supplies by 2030.

Economic Implications

These supply chain constraints have doubled or tripled lead times over the past decade, resulting in increased costs and straining the energy transition as wind became the main source of UK electricity in a recent milestone. Despite efforts to expand manufacturing capacity by companies like GE Vernova, Hitachi Energy, and Siemens Energy, the sector remains cautious about overinvesting without predictable demand, and setbacks at Hinkley Point C have reinforced concerns about delivery risks.

Workforce and Manufacturing Capacity

Additionally, there is a limited number of companies capable of constructing and maintaining battery sites, adding to the challenges. These issues underscore the necessity for new factories and a trained workforce to support the electrification plans and meet the 2030 targets.

Government Initiatives

In response to these challenges, the UK government is exploring various strategies to bolster domestic manufacturing capabilities and streamline supply chains while supporting grid reform efforts underway to improve system resilience. Investments in infrastructure and workforce development are being considered to mitigate the impact of global supply chain disruptions and advance the UK's green industrial revolution for next-generation reactors.

The UK's energy transition is at a critical juncture, with supply chain delays posing substantial risks to achieving decarbonization goals, including the planned end of coal power after 142 years for the UK. Addressing these challenges will require coordinated efforts between the government, industry stakeholders, and international partners to ensure a sustainable and timely shift to clean energy.

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U.S. Power Sector Outlook 2022 previews clean energy targets, grid reliability and resilience upgrades, transmission expansion, renewable integration, EV charging networks, and decarbonization policies shaping utilities, markets, and climate strategies amid extreme weather risks.

Key Points

An outlook on clean energy goals, grid resilience, transmission, and EV infrastructure shaping U.S. decarbonization.

✅ States set 100% clean power targets; equity plans deepen.

✅ Grid reforms, transmission builds, and RTO debates intensify.

✅ EV plants, batteries, and charging corridors accelerate.

As sweeping climate legislation stalled in Congress this year, states and utilities were busy aiming to reshape the future of electricity.

States expanded clean energy goals and developed blueprints on how to reach them. Electric vehicles got a boost from new battery charging and factory plans.

The U.S. power sector also is sorting through billions of dollars of damage that will be paid for by customers over time. States coped with everything from blackouts during a winter storm to heat waves, hurricanes, wildfires and tornadoes. The barrage has added urgency to a push for increased grid reliability and resilience, especially as the power generation mix evolves, EV grid challenges grow as electricity is used to power cars and the climate changes.

“The magnitude of our inability to serve with these sort of discontinuous jumps in heat or cold or threats like wildfires and flooding has made it really clear that we can’t take the grid for granted anymore — and that we need to do something,” said Alison Silverstein, a Texas-based energy consultant.

Many of the announcements in 2021 could see further developments next year as legislatures, utilities and regulators flesh out details on everything from renewable projects to ways to make the grid more resilient.

On the policy front, the patchwork of state renewable energy and carbon reduction goals stands out considering Congress’ failure so far to advance a key piece of President Biden’s agenda — the "Build Back Better Act," which proposed about $550 billion for climate action. Criticism from fellow Democrats has rained on Sen. Joe Manchin (D-W.Va.) since he announced his opposition this month to that legislation (E&E Daily, Dec. 21).

The Biden administration has taken some steps to advance its priorities as it looks to decarbonize the U.S. power sector by 2035. That includes promoting electric vehicles, which are part of a goal to make the United States have net-zero emissions economywide no later than 2050. The administration has called for a national network of 500,000 EV charging stations as the American EV boom raises power-supply questions, and mandated the government begin buying only EVs by 2035.

Still, the fate of federal legislation and spending is uncertain. States and utility plans are considered a critical factor in whether Biden’s targets come to fruition. Silverstein also stressed the importance of regional cooperation as policymakers examine the grid and challenges ahead.

“Our comfort as individuals and as households and as an economy depends on the grid staying up,” Silverstein said, “and that’s no longer a given.”

Here are three areas of the electricity sector that saw changes in 2021, and could see significant developments next year:

1. Clean energy
The list of states with new or revamped clean energy goals expanded again in 2021, with Oregon and Illinois joining the ranks requiring 100 percent zero-carbon electricity in 2040 and 2050, respectively.

Washington state passed a cap-and-trade bill. Massachusetts and Rhode Island adopted 2050 net-zero goals.

North Carolina adopted a law requiring a 70 percent cut in carbon emissions by 2030 from 2005 levels and establishing a midcentury net-zero goal.

Nebraska didn’t adopt a statewide policy, but its three public power districts voted separately to approve clean energy goals, actions that will collectively have the same effect. Even the governor of fossil-fuel-heavy North Dakota, during an oil conference speech, declared a goal of making the state carbon-neutral by the end of the decade.

These and other states join hundreds of local governments, big energy users and utilities, which were also busy establishing and reworking renewable energy and climate goals this year in response to public and investor pressure.

However, many of the details on how states will reach those targets are still to be determined, including factors such as how much natural gas will remain online and how many renewable projects will connect to the grid.

Decisions on clean energy that could be made in 2022 include a key one in Arizona, which has seen support rise and fall over the years for a proposal to lead to 100 percent clean power for regulated electric utilities. The Arizona Corporation Commission could discuss the matter in January, though final approval of the plan is not a sure thing. Eyes also are on California, where a much bigger grid for EVs will be needed, as it ponders a recent proposal on rooftop solar that has supporters of renewables worried about added costs that could hamper the industry.

In the wake of the major energy bill North Carolina passed in 2021, observers are waiting for Duke Energy Corp.’s filing of its carbon-reduction plan with state utility regulators. That plan will help determine the future electricity mix in the state.

Warren Leon, executive director of the Clean Energy States Alliance (CESA), said that without federal action, state goals are “going to be more difficult to achieve.”

State and federal policies are complementary, not substitutes, he said. And Washington can provide a tailwind and help states achieve their goals more quickly and easily.

“Progress is going to be most rapid if both the states and the federal government are moving in the same direction, but either of them operating independently of the others can still make a difference,” he said.

While emissions reductions and renewable energy goals were centerpieces of the state energy and climate policies adopted this year, there were some other common threads that could continue in 2022.

One that’s gone largely unnoticed is that an increasing number of states went beyond just setting targets for clean energy and have developed plans, or road maps, for how to meet their goals, Leon said.

Like the New Year resolutions that millions of Americans are planning — pledges to eat healthier or exercise more — it’s far easier to set ambitious goals than to achieve them.

According to CESA, California, Colorado, Nevada, Maine, Rhode Island, Massachusetts and Washington state all established plans for how to achieve their clean energy goals. Prior to late 2020, only two states — New York and New Jersey — had done so.

Another trend in state energy and climate policies: Equity and energy justice provisions factored heavily in new laws in places such as Maine, Illinois and Oregon.

Equity isn’t a new concern for states, Leon said. But state plans have become more detailed in terms of their response to ways the energy transition may affect vulnerable populations.

“They’re putting much more concrete actions in place,” he said. “And they are really figuring out how they go about electricity system planning to make sure there are new voices at the table, that the processes are different, and there are things that are going to be measured to determine whether they’re actually making progress toward equity.”

2. Grid
Climate change and natural disasters have been a growing worry for grid planners, and 2021 was a year the issue affected many Americans directly.

Texas’ main power grid suffered massive outages during a deadly February winter storm, and it wasn’t far from an uncontrolled blackout that could have required weeks or months of recovery.

Consumers elsewhere in the country watched as millions of Texans lost grid power and heat amid a bitter cold snap. Other parts of the central United States saw more limited power outages in February.

“I think people care about the grid a lot more this year than they did last year,” Silverstein said, adding, “All of a sudden people are realizing that electricity’s not as easy as they’ve assumed it was and … that we need to invest more.”

Many of the challenges are not specific to one state, she added.

“It seems to me that the state regulators need to put a lot — and utilities need to put a lot — more commitment into working together to solve broad regional problems in cooperative regional ways,” Silverstein said.

In 2022, multiple decisions could affect the grid, including state oversight of spending on upgrades and market proposals that could sway the amount of clean energy brought online.

A focal point will be Texas, where state regulators are examining further changes to the Electric Reliability Council of Texas’ market design. That could have major implications for how renewables develop in the state. Leaders in other parts of the country will likely keep tabs on adjustments in Texas as they ponder their own changes.

Texas has already embarked on reforms to help improve the power sector and its coordination with the natural gas system, which is critical to keeping plants running. But its primary power grid, operated by ERCOT, remains largely isolated and hasn’t been able to rule out power shortages this winter if there are extreme conditions (Energywire, Nov. 22).

Transmission also remains a key issue outside of the Lone Star State, both for resilience and to connect new wind and solar farms. In many areas of the country, the job of planning these new regional lines and figuring out how to allocate billions of dollars in costs falls to regional grid operators (Energywire, Dec. 13).

In the central U.S., the issue led to tension between states in the Midwest and the Gulf South (Energywire, Oct. 15).

In the Northeast, a Maine environmental commissioner last month suspended a permit for a major transmission project that could send hydropower to the region from Canada (Greenwire, Nov. 24). The project’s developers are now battling the state in court to force construction of the line — a process that could be resolved in 2022 — after Mainers signaled opposition in a November vote.

Advocates of a regional transmission organization for Western states, meanwhile, hope to keep building momentum even as critics question the cost savings promoted by supporters of organized markets. Among those in existing markets, states such as Louisiana are expected to monitor the costs and benefits of being associated with the Midcontinent Independent System Operator.

In other states, more details are expected to emerge in 2022 about plans announced this year.

In California, where policymakers are also exploring EVs for grid stability alongside wildfire prevention, Pacific Gas & Electric Co. announced a plan over the summer to spend billions of dollars to underground some 10,000 miles of power lines to help prevent wildfires, for example (Greenwire, July 22).

Several Southeastern utilities, including Dominion Energy Inc., Duke Energy, Southern Co. and the Tennessee Valley Authority, won FERC approval to create a new grid plan — the Southeast Energy Exchange Market, or SEEM — that they say will boost renewable energy.

SEEM is an electricity trading platform that will facilitate trading close to the times when the power is used. The new market is slated to include two time zones, which would allow excess renewables such as solar and wind to be funneled to other parts of the country to be used during peak demand times.

SEEM is significant because the Southeast does not have an organized market structure like other parts of the country, although some utilities such as Dominion and Duke do have some operations in the region managed by PJM Interconnection LLC, the largest U.S. regional grid operator.

SEEM is not a regional transmission organization (RTO) or energy imbalance market. Critics argue that because it doesn’t include a traditional independent monitor, SEEM lacks safeguards against actions that could manipulate energy prices.

Others have said the electric companies that formed SEEM did so to stave off pressure to develop an RTO. Some of the regulated electric companies involved in the new market have denied that claim.

3. Electric vehicles
With electric vehicles, the Midwest and Southeast gained momentum in 2021 as hubs for electrifying the transportation sector, as EVs hit an inflection point in mainstream adoption, and the Biden administration simultaneously worked to boost infrastructure to help get more EVs on the road.

From battery makers to EV startups to major auto manufacturers, companies along the entire EV supply chain spectrum moved to or expanded in those two regions, solidifying their footprint in the fast-growing sector.

A wave of industry announcements capped off in December with California-based Rivian Automotive Inc. declaring it would build a $5 billion electric truck, SUV and van factory in Georgia. Toyota Motor Corp. picked North Carolina for its first U.S.-based battery plant. General Motors Co. and a partner plan to build a $2.5 billion battery plant in GM’s home state of Michigan. And Proterra Inc. has unveiled plans to build a new battery factory in South Carolina.

Advocates hope the EV shift by automakers in the Midwest and Southeast will widen the options for customers. Automakers and startups also have been targeting states with zero-emission vehicle targets to launch new and more models because there’s an inherent demand for them.

“The states that have adopted those standards are getting more vehicles,” said Anne Blair, senior EV policy manager for the Electrification Coalition.

EV advocates say they hope those policies could help bring products like Ford’s electrified signature truck line on the road and into rural areas. Ford also is partnering with Korean partner SK Innovation Co. Ltd. to build two massive battery plants in Kentucky.

Regardless of the fanfare about new vehicles, more jobs and must-needed economic growth, barriers to EV adoption remain. Many states have tacked on annual fees, which some elected officials argue are needed to replace revenues secured from a gasoline tax.

Other states do not allow automakers to sell directly to consumers, preventing companies like Lordstown Motors Corp. and Rivian to effectively do business there.

“It’s about consumer choice and consumers having the capacity to buy the vehicles that they want and that are coming out, in new and innovative ways,” Blair told E&E News. Blair said direct sales also will help boost EV sales at traditional dealerships.

In 2022, advocates will be closely watching progress with the National Electric Highway Coalition, amid tensions over charging control among utilities and networks, which was formed by more than 50 U.S. power companies to build a coast-to-coast fast-charging network for EVs along major U.S. travel corridors by the end of 2023 (Energywire, Dec. 7).

A number of states also will be holding legislative sessions, and they could include new efforts to promote EVs — or change benefits that currently go to owners of alternative vehicles.

EV advocates will be pushing for lawmakers to remove barriers that they argue are preventing customers from buying alternative vehicles.

Conversations already have begun in Georgia to let startup EV makers sell their cars and trucks directly to consumers. In Florida, lawmakers will try again to start a framework that will create a network of charging stations as charging networks jostle for position under federal electrification efforts, as well as add annual fees to alternative vehicles to ease concerns over lost gasoline tax revenue.

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U.S. Solar Generation 2017 surpassed biomass, delivering 77 million MWh versus 64 million MWh, trailing only hydro and wind; driven by PV expansion, capacity additions, and utility-scale and small-scale growth, per EIA.

Key Points

It was the year U.S. solar electricity exceeded biomass, hitting 77 million MWh and trailing only hydro and wind.

✅ Solar: 77 million MWh; Biomass: 64 million MWh (2017, EIA)

✅ PV expansion; late-year capacity additions dampen annual generation

✅ Hydro: 300 and wind: 254 million MWh; solar thermal ~3 million MWh

Electricity generation from solar resources in the United States reached 77 million megawatthours (MWh) in 2017, surpassing for the first time annual generation from biomass resources, which generated 64 million MWh in 2017. Among renewable sources, only hydro and wind generated more electricity in 2017, at 300 million MWh and 254 million MWh, respectively. Biomass generating capacity has remained relatively unchanged in recent years, while solar generating capacity has consistently grown.

Annual growth in solar generation often lags annual capacity additions because generating capacity tends to be added late in the year. For example, in 2016, 29% of total utility-scale solar generating capacity additions occurred in December, leaving few days for an installed project to contribute to total annual generation despite being counted in annual generating capacity additions. In 2017, December solar additions accounted for 21% of the annual total. Overall, solar technologies operate at lower annual capacity factors and experience more seasonal variation than biomass technologies.

Biomass electricity generation comes from multiple fuel sources, such as wood solids (68% of total biomass electricity generation in 2017), landfill gas (17%), municipal solid waste (11%), and other biogenic and nonbiogenic materials (4%).These shares of biomass generation have remained relatively constant in recent years, even as renewables' rise in 2020 across the grid.

Solar can be divided into three types: solar thermal, which converts sunlight to steam to produce power; large-scale solar photovoltaic (PV), which uses PV cells to directly produce electricity from sunlight; and small-scale solar, which are PV installations of 1 megawatt or smaller. Generation from solar thermal sources has remained relatively flat in recent years, at about 3 million MWh, even as renewables surpassed coal in 2022 nationwide. The most recent addition of solar thermal capacity was the Crescent Dunes Solar Energy plant installed in Nevada in 2015, and currently no solar thermal generators are under construction in the United States.

Solar photovoltaic systems, however, have consistently grown in recent years, as indicated by 2022 U.S. solar growth metrics across the sector. In 2014, large-scale solar PV systems generated 15 million MWh, and small-scale PV systems generated 11 million MWh. By 2017, annual electricity from those sources had increased to 50 million MWh and 24 million MWh, respectively, with projections that solar could reach 20% by 2050 in the U.S. mix. By the end of 2018, EIA expects an additional 5,067 MW of large-scale PV to come online, according to EIA’s Preliminary Monthly Electric Generator Inventory, with solar and storage momentum expected to accelerate. Information about planned small-scale PV systems (one megawatt and below) is not collected in that survey.

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Energy Transition Grid Reforms address transmission capacity, interconnection, congestion management, and flexibility markets, enabling renewable integration and grid stability while optimizing network charges and access in Australia, Ireland, and Great Britain.

Key Points

Measures to expand transmission, boost flexibility, and manage congestion for reliable, low-carbon electricity systems.

✅ Transmission upgrades and interconnectors ease congestion

✅ Flexible markets, DER, and storage bolster grid stability

✅ Evolving network charges and access incentivize siting

Electricity networks globally are experiencing significant increases in the volume of renewable capacity as countries seek to decarbonise their power sectors, even as clean energy's 'dirty secret' highlights integration trade-offs, without impacting the security of supply. The scale of this change is creating new challenges for power networks and those responsible for keeping the lights on.

The latest insight paper from Cornwall Insight – Market design amidst global energy transition – looks into this issue. It examines the outlook for transmission networks, and how legacy design and policies are supporting decarbonisation, aligning with IRENA findings on renewables and shaping the system. The paper focuses on three key markets; Australia, Ireland and Great Britain (GB).

Australia's main priority is to enhance transmission capacity and network efficiency; as concerns over excess solar risking blackouts grow in distribution networks, without this, the transmission system will be a barrier to growth for decentralised flexibility and renewables. In contrast, GB and Ireland benefit from interconnection with other national markets. This provides them with additional levers that can be pulled to manage system security and supply. However, they are still trying to hone and optimise network flexibility in light of steepening decarbonisation objectives.

Unsurprisingly, renewable energy resources have been growing in all three markets, with Ireland regarded as a leader in grid integration, with this expected to continue for the foreseeable future. Many of these projects are often located in places where network infrastructure is not as well developed, creating pressure on system operation as a result.

In all three markets, unit charges are rising, driven by a reduced charging base as decentralised energy grows quickly. This combination of changes is leading to network congestion, a challenge mirrored by the US grid overhaul for renewables underway, as transmission network development struggles to keep up, and flexibility markets are being optimised and changed.

In summary, reforms are on-going in each jurisdiction to accommodate the rapid physical transformation of the generation mix. Each has its objectives and tensions which are reflective of wider global reform programmes being undertaken in most developed, liberalised and decarbonising energy markets.

Gareth Miller, CEO of Cornwall Insight, said: “Despite differences in market design and characteristics, all three markets are grappling with similar issues, that comes from committing to deep decarbonisation. This includes the most appropriate methods for charging for networks, managing access to them and dealing with issues such as network congestion and constraint.

“In all three countries, renewable projects are often placed in isolated locations, as seen in Scotland where more pylons are needed to keep the lights on, away from the traditional infrastructure that is closer to demand. However, as renewable growth is set to continue, the networks will need to transition from being demand-centric to more supply orientated.

“Both system operators and stakeholders will need to continually evaluate their market structures and designs to alleviate issues surrounding locational congestion and grid stability. Each market is at very different stages in the process in trying to improve any problems implementing solutions to allow for higher efficiencies in renewable energy integration.

“It is uncertain whether any of the proposed changes will fundamentally resolve the issues that come with increased renewables on the system. However, despite marked differences, they certainly could all learn from each other and elements of their network arrangements, as well as from US decarbonisation strategies research.”

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Ontario Pickering Nuclear Closure will shift supply to natural gas, raising emissions as the electricity grid manages nuclear refurbishment, IESO planning, clean power imports, and new wind, solar, and storage to support electrification.

Key Points

Ontario will close Pickering and rely on natural gas, increasing emissions while other nuclear units are refurbished.

✅ 14% of Ontario electricity supplied by Pickering now

✅ Natural gas use rises; grid emissions projected up 375%

✅ IESO warns gas phaseout by 2030 risks blackouts, costs

The Ontario government will not reconsider plans to close the Pickering nuclear station and instead stop-gap the consequent electricity shortfall with natural gas-generated power in a move that will, as an analysis of Ontario's grid shows, hike the province’s greenhouse gas emissions substantially in the coming years.

In a report released this week, a nuclear advocacy group urged Ontario to refurbish the aging facility east of Toronto, which is set to be shuttered in phases in 2024 and 2025, prompting debate over a clean energy plan after Pickering as the closure nears. The closure of Pickering, which provides 14 per cent of the province’s annual electricity supply, comes at the same time as Ontario’s other two nuclear stations are undergoing refurbishment and operating at reduced capacity.

Canadians for Nuclear Energy, which is largely funded by power workers' unions, argued closing the 50-year-old facility will result in job losses, emissions increases, heightened reliance on imported natural gas and an electricity supply gap across Ontario.

But Palmer Lockridge, spokesperson for the provincial energy minister, said further extending Pickering’s lifespan isn’t on the table.

“As previously announced in 2020, our government is supporting Ontario Power Generation’s plan to safely extend the life of the Pickering Nuclear Generating Station through the end of 2025,” said Lockridge in an emailed response to questions.

“Going forward, we are ensuring a reliable, affordable and clean electricity system for decades to come. That’s why we put a plan in place that ensures we are prepared for the emerging energy needs following the closure of Pickering, and as a result of our government’s success in growing and electrifying the province’s economy.”

The Progressive Conservative government under Premier Doug Ford has invested heavily in electrification, sinking billions into electric vehicle and battery manufacturing and industries like steel-making to retool plants to run on electricity rather than coal, and exploring new large-scale nuclear plants to bolster baseload supply.

Natural gas now provides about seven per cent of the province’s energy, a piece of the pie that will rise significantly as nuclear energy dwindles. Emissions from Ontario’s electricity grid, which is currently one of the world’s cleanest with 94 per cent zero-emission power generation, are projected to rise a whopping 375 per cent as the province turns increasingly to natural gas generation. Those increases will effectively undo a third of the hard-won emissions reductions the province achieved by phasing out coal-fired power generation.

The Independent Electricity System Operator (IESO), which manages Ontario’s grid, studied whether the province could phase out natural gas generation by 2030 and concluded that “would result in blackouts and hinder electrification” and increase average residential electricity costs by $100 per month.

The Ontario Clean Air Alliance, however, obtained draft documents from the electricity operator that showed it had studied, but not released publicly, other scenarios that involved phasing out natural gas without energy shortfalls, price hikes or increases in emissions.

The Ontario government will not reconsider plans to close the Pickering nuclear station and instead stop-gap the consequent electricity shortfall facing Ontario with natural gas-generated power in a move that will hike the province’s greenhouse gas emissions.

One model suggested increasing carbon taxes and imports of clean energy from other provinces could keep blackouts, costs and emissions at bay, while another involved increasing energy efficiency, wind generation and storage.

“By banning gas-fired electricity exports to the U.S., importing all the Quebec water power we can with the existing transmission lines and investing in energy efficiency and wind and solar and storage — do all those things and you can phase out gas-fired power and lower our bills,” said Jack Gibbons, chair of the Ontario Clean Air Alliance.

The IESO has argued in response that the study of those scenarios was not complete and did not include many of the challenges associated with phasing out natural gas plants.

Ontario Energy Minister Todd Smith asked the IESO to develop “an achievable pathway to zero-emissions in the electricity sector and evaluate a moratorium on new-build natural gas generation stations,” said his spokesperson. That report, an early look at halting gas power, is expected in November.

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