Nuclear plant raises concerns

Ontario SMR BWRX-300 leads Canada in next-gen nuclear energy at Darlington, with GE Vernova and Hitachi, delivering clean, reliable power via modular design, passive safety, scalability, and lower costs for grid integration.

Key Points

Ontario SMR BWRX-300 is a 300 MW modular boiling water reactor at Darlington with passive safety and clean power.

✅ 300 MW BWR supplies power for about 300,000 homes

✅ Passive safety enables safe shutdown without external power

✅ Modular design reduces costs and speeds grid integration

Ontario has initiated the construction of Canada's first small modular nuclear reactor (SMR), supported by OPG's SMR commitment to deployment, marking a significant milestone in the province's energy strategy. This development positions Ontario at the forefront of next-generation nuclear technology within the G7 nations.

The project, known as the Darlington New Nuclear Project, is being led by Ontario Power Generation (OPG) in collaboration with GE Vernova and Hitachi Nuclear Energy, and through its OPG-TVA partnership on new nuclear technology development. The chosen design is the BWRX-300, a 300-megawatt boiling water reactor that is approximately one-tenth the size and complexity of traditional nuclear reactors. The first unit is expected to be operational by 2029, with plans for additional units to follow.

Each BWRX-300 reactor is projected to supply electricity to about 300,000 homes, contributing to Ontario's efforts, which include the decision to refurbish Pickering B for additional baseload capacity, to meet the anticipated 75% increase in electricity demand by 2050. The compact design of the SMR allows for easier integration into existing infrastructure, reducing the need for extensive new transmission lines.

The economic impact of the project is substantial. The construction of four such reactors is expected to create up to 18,000 jobs and contribute approximately $38.5 billion CAD to the Canadian economy, reflecting the economic benefits of nuclear projects over 65 years. The modular nature of SMRs also allows for scalability, with each additional unit potentially reducing costs through economies of scale.

Safety is a paramount consideration in the design of the BWRX-300. The reactor employs passive safety features, meaning it can safely shut down without the need for external power or operator intervention. This design enhances the reactor's resilience to potential emergencies, aligning with stringent regulatory standards.

Ontario's commitment to nuclear energy is further demonstrated by its plans for four SMRs at the Darlington site. This initiative reflects a broader strategy to diversify the province's energy mix, incorporating clean and reliable power sources to complement renewable energy efforts.

While the development of SMRs in Ontario is a significant step forward, it also aligns with the Canadian nuclear initiative positioning Canada as a leader in the global nuclear energy landscape. The successful implementation of the BWRX-300 could serve as a model for other nations exploring advanced nuclear technologies.

Ontario's groundbreaking work on small modular nuclear reactors represents a forward-thinking approach to energy generation. By embracing innovative technologies, the province is not only addressing future energy demands but also, through the Pickering NGS life extension, contributing to the global transition towards sustainable and secure energy solutions.

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Japan Power Demand Slowdown highlights reduced electricity consumption as industrial activity stalls amid the coronavirus pandemic, pressuring utilities, the grid, and manufacturing, with economic impacts monitored by Chubu Electric and the federation of electric utilities.

Key Points

A drop in Japan's electricity use as industrial activity slows during the coronavirus pandemic, pressuring utilities.

✅ Industrial slowdown cuts electricity consumption

✅ Utilities monitor grid stability and demand trends

✅ Pandemic-linked economic risks weigh on power sector

Japan's power demand has been hit by a slowdown in industrial activity due to the coronavirus outbreak, reflecting broader shifts in electricity demand worldwide, Japanese utilities federation's head said on Friday, without giving specific figures.

Electricity load profiles during lockdowns revealed changes in daily routines, as shown by lockdown electricity data across multiple regions.

Analysts have identified key shifts in U.S. electricity consumption patterns that mirror industrial slowdowns.

"We are closely watching development of the pandemic, underscoring the need for electricity during such crises, as further reduction in corporate and economic activities would lead to serious impacts," Satoru Katsuno, the chairman of Japan's federation of electric utilities and president of Chubu Electric Power Co Inc, told a news conference.

In parallel, the power industry has intensified coordination with federal partners to sustain grid reliability and protect critical workers.

Some governments, including Brazil, considered emergency loans for the power sector to stabilize utilities amid revenue pressures.

Consumer advocates warned that pandemic-related electricity shut-offs and bill burdens could exacerbate energy insecurity for vulnerable households.

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Ontario Industrial Electricity Pricing Reforms aim to cut regulatory burden for industrial ratepayers through an energy concierge service, IESO billing reviews, GA estimation enhancements, clearer peak demand data, and contract cost savings.

Key Points

Measures to reduce industrial power costs via an energy concierge, IESO and GA reviews, and better peak demand data.

✅ Energy concierge eases pricing and connection inquiries

✅ IESO to simplify bills and refine GA estimation

✅ Real-time peak data and contract savings under review

Ontario's government is pursuing burden reduction measures for industrial electricity ratepayers, including legislation to lower rates to help businesses compete, and stimulate growth and investment.

Over the next year, Ontario will help industrial electricity ratepayers focus on their businesses instead of their electricity management practices by establishing an energy concierge service to provide businesses with better customer service and easier access to information about electricity pricing and changes for electricity consumers as well as connection processes.

Ontario is also tasking the Independent Electricity System Operator (IESO) to review and report back on its billing, settlement and customer service processes, building on initiatives such as electricity auctions that aim to reduce costs.

Improve and simplify industrial electricity bills, including clarifying the recovery rate that affects charges;

Review how the monthly Global Adjustment (GA) charge is estimated and identify potential enhancements related to cost allocation across classes; and,

Improve peak demand data publication processes and assess the feasibility of using real-time data to determine the factors that allocate GA costs to consumers.

Further, as part of the government's continued effort to finding efficiencies in the electricity system, Ontario is also directing IESO to review generation contracts to find opportunities for cost savings.

These measures are based on industry feedback received during extensive industrial electricity price consultations held between April and July 2019, which underscored how high electricity rates have impacted factories across the province.

"Our government is focused on finding workable electricity pricing solutions that will provide the greatest benefit to Ontario," said Greg Rickford, Minister of Energy, Northern Development and Mines. "Reducing regulatory burden on businesses can free up resources that can then be invested in areas such as training, new equipment and job creation."

The government is also in the process of developing further changes to industrial electricity pricing policy, amid planned rate increases announced by the OEB, informed by what was heard during the industrial electricity price consultations.

"It's important that we get this right the first time," said Minister Rickford. "That's why we're taking a thoughtful approach and listening carefully to what businesses in Ontario have to say."

Helping industrial ratepayers is part of the government's balanced and prudent plan to build Ontario together through ensuring our province is open for business and building a more transparent and accountable electricity system.

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California Rooftop Solar Cost Shift examines PG&E rate hikes, net metering changes, and utility infrastructure spending impacts on low-income households, distributed generation, and clean energy adoption, potentially raising bills and undermining grid resilience.

Key Points

A claim that rooftop solar shifts fixed grid costs to others; critics cite PG&E rates, avoided costs, and impacts.

✅ PG&E rates outpace national average, underscoring cost drivers.

✅ Net metering cuts risk burdening low- and middle-income homes.

✅ Distributed generation avoids infrastructure spend and grid strain.

California is grappling with soaring electricity prices across the state, with Pacific Gas & Electric (PG&E) rates more than double the national average and increasing at an average of 12.5% annually over the past six years. In response, Governor Gavin Newsom issued an executive order directing state energy agencies to identify ways to reduce power costs. However, recent policy shifts targeting rooftop solar users may exacerbate the problem rather than alleviate it.

The "Cost Shift" Theory

A central justification for these pricing changes is the "cost shift" theory. This theory posits that homeowners with rooftop solar panels reduce their electricity consumption from the grid, thereby shifting the fixed costs of maintaining and operating the electrical grid onto non-solar customers. Proponents argue that this leads to higher rates for those without solar installations.

However, this theory is based on a flawed assumption: that PG&E owns 100% of the electricity generated by its customers and is entitled to full profits even for energy it does not deliver. In reality, rooftop solar users supply only about half of their energy needs and still pay for the rest. Moreover, their investments in solar infrastructure reduce grid strain and save ratepayers billions by avoiding costly infrastructure projects and reducing energy demand growth, aligning with efforts to revamp electricity rates to clean the grid as well.

Impact on Low- and Middle-Income Households

The majority of rooftop solar users are low- and middle-income households. These individuals often invest in solar panels to lower their energy bills and reduce their carbon footprint. Policy changes that undermine the financial viability of rooftop solar disproportionately affect these communities, and efforts to overturn income-based charges add uncertainty about affordability and access.

For instance, Assembly Bill 942 proposes to retroactively alter contracts for millions of solar consumers, cutting the compensation they receive from providing energy to the grid, raising questions about major changes to your electric bill that could follow if their home is sold or transferred. This would force those with solar leases—predominantly lower-income individuals—to buy out their contracts when selling their homes, potentially incurring significant financial burdens.

The Real Drivers of Rising Energy Costs

While rooftop solar users are being blamed for rising electricity rates, calls for action have mounted as the true culprits lie elsewhere. Unchecked utility infrastructure spending has been a significant factor in escalating costs. For example, PG&E's rates have increased rapidly, yet the utility's spending on infrastructure projects has often been criticized for inefficiency and lack of accountability. Instead of targeting solar users, policymakers should scrutinize utility profit motives and infrastructure investments to identify areas where costs can be reduced without sacrificing service quality.

California's approach to addressing rising electricity costs by targeting rooftop solar users is misguided. The "cost shift" theory is based on flawed assumptions and overlooks the substantial benefits that rooftop solar provides to the grid and ratepayers. To achieve a sustainable and equitable energy future, the state must focus on controlling utility spending, promoting clean energy access for all, especially as it exports its energy policies across the West, and ensuring that policies support—not undermine—the adoption of renewable energy technologies.

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Natrium small modular reactor pairs a sodium-cooled fast reactor with molten salt storage to deliver load-following, dispatchable nuclear power, enhancing grid flexibility and peaking capacity as TerraPower and GE Hitachi pursue factory-built, affordable deployment.

Key Points

A TerraPower-GE Hitachi SMR joining a sodium-cooled reactor with molten salt storage for flexible, dispatchable power.

✅ 345 MW base; 500 MW for 5.5 hours via thermal storage

✅ Sodium-cooled coolant and molten salt storage enable load-following

✅ Backed by major utilities; factory-built modules aim lower costs

Nuclear power is the Immovable Object of generation sources. It can take days just to bring a nuclear plant completely online, rendering it useless as a tool to manage the fluctuations in the supply and demand on a modern energy grid.  

Now a firm launched by Bill Gates in 2006, TerraPower, in partnership with GE Hitachi Nuclear Energy, believes it has found a way to make the infamously unwieldy energy source a great deal nimbler, drawing on next-gen nuclear ideas — and for an affordable price. 

The new design, announced by TerraPower on August 27th, is a combination of a "sodium-cooled fast reactor" — a type of small reactor in which liquid sodium is used as a coolant — and an energy storage system. While the reactor could pump out 345 megawatts of electrical power indefinitely, the attached storage system would retain heat in the form of molten salt and could discharge the heat when needed, increasing the plant’s overall power output to 500 megawatts for more than 5.5 hours. 

“This allows for a nuclear design that follows daily electric load changes and helps customers capitalize on peaking opportunities driven by renewable energy fluctuations,” TerraPower said. 

Dubbed Natrium after the Latin name for sodium ('natrium'), the new design will be available in the late 2020s, said Chris Levesque, TerraPower's president and CEO.

TerraPower said it has the support of a handful of top U.S. utilities, including Berkshire Hathaway Energy subsidiary Pacificorp, Energy Northwest, and Duke Energy. 

The reactor's molten salt storage add-on would essentially reprise the role currently played by coal- or gas-fired power stations or grid-scale batteries: each is a dispatchable form of power generation that can quickly ratchet up or down in response to changes in grid demand or supply. As the power demands of modern grids become ever more variable with additions of wind and solar power — which only provide energy when the wind is blowing or the sun shining — low-carbon sources of dispatchable power are needed more and more, and Europe is losing nuclear power at a difficult moment for energy security. California’s rolling blackouts are one example of what can happen when not enough power is available to be dispatched to meet peak demand. 

The use of molten salt, which retains heat at extremely high temperatures, as a storage technology is not new. Concentrated solar power plants also collect energy in the form of molten salt, although such plants have largely been abandoned in the U.S. The technology could enjoy new life alongside nuclear plants: TerraPower and GE Hitachi Nuclear are only two of several private firms working to develop reactor designs that incorporate molten salt storage units, including U.K.- and Canada-based developer Moltex Energy.

The Gates-backed venture and its partner touted the "significant cost savings" that would be achieved by building major portions of their Natrium plants through not a custom but an industrial process — a defining feature of the newest generation of advanced reactors is that their parts can be made in factories and assembled on-site — although more details on cost weren't available. Reuters reported earlier that each plant would cost around $1 billion.

NuScale Power

A day after TerraPower and GE Hitachi's unveiled their new design, another nuclear firm — Portland, Oregon-based NuScale Power — announced that the U.S. Nuclear Regulatory Commission (NRC) had completed its final safety evaluation of NuScale’s new small modular reactor design.

It was the first small modular reactor design ever to receive design approval from the NRC, NuScale said. 

The approval means customers can now pursue plans to develop its reactor design confident that the NRC has signed off on its safety aspects. NuScale said it has signed agreements with interested parties in the U.S., Canada, Romania, the Czech Republic, and Jordan, and is in the process of negotiating more. 

NuScale previously said that construction on one of its plants could begin in Utah in 2023, with the aim of completing the first Power Module in 2026 and the remaining 11 modules in 2027.

NuScale
An artist’s rendering of NuScale Power’s small modular nuclear reactor plant. NUSCALE POWER
NuScale’s reactor is smaller than TerraPower’s. Entirely factory-built, each of its Power Modules would generate 60 megawatts of power. The design, typical of advanced reactors, uses pressurized water reactor technology, with one power plant able to house up to 12 individual Power Modules. 

In a sign of the huge amounts of time and resources it takes to get new nuclear technology to the market’s doorstep, NuScale said it first completed its Design Certification Application in December 2016. NRC officials then spent as many as 115,000 hours reviewing it, NuScale said, in what was only the first of several phases in the review process. 

In January 2019, President Donald Trump signed into law the Nuclear Energy Innovation and Modernization Act (NEIMA), designed to speed the licensing process for advanced nuclear reactors, and the DOE under Secretary Rick Perry moved to advance nuclear development through parallel initiatives. The law had widespread bipartisan support, underscoring Democrats' recent tentative embrace of nuclear power.

An industry eager to turn the page

After a boom in the construction of massive nuclear power plants in the 1960s and 70s, the world's aging fleet of nuclear plants suffers from rising costs and flagging public support. Nuclear advocates have for years heralded so-called small modular reactors or SMRs as the cheaper and more agile successors to the first generation of plants, and policy moves such as the UK's green industrial revolution lay out pathways for successive waves of reactors. But so far a breakthrough on cost has proved elusive, and delays in development timelines have been abundant. 

Edwin Lyman, the director of nuclear power safety at the Union of Concerned Scientists, suggested on Twitter that the nuclear designs used by TerraPower and GE Hitachi had fallen short of a major innovation. “Oh brother. The last thing the world needs is a fleet of sodium-cooled fast reactors,” he wrote.  

Still, climate scientists view nuclear energy as a crucial source of zero-carbon energy, with analyses arguing that net-zero emissions may be impossible without nuclear in many scenarios, if the world stands a chance at limiting global temperature increases to well below 2 degrees Celsius above pre-industrial levels. Nearly all mainstream projections of the world’s path to keeping the temperature increase below those levels feature nuclear energy in a prominent role, including those by the United Nations and the International Energy Agency (IEA). 

According to the IEA: “Achieving the clean energy transition with less nuclear power is possible but would require an extraordinary effort.”

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BC Hydro Crypto Mining Moratorium pauses high-load connection requests, as BCUC reviews electricity demand, gigawatt-hours and megawatt load forecasts, data center growth, and potential rate impacts on the power grid and industrial customers.

Key Points

A BC order pausing crypto mining connections while BC Hydro and BCUC assess load, grid impacts, and ratepayer risks.

✅ 18-month pause on new high-load crypto connections

✅ 1,403 MW in requests suspended; 273 MW existing or pending

✅ Seeks to manage demand, rates, and grid reliability

In its Nov. 1, 2022 load update briefing note to senior executives of the Crown corporation, BC Hydro shows that the entire large industrial sector accounted for 6,591 gigawatt-hours during the period – one percent less than forecast in the service plan.

BC Hydro censored load statistics about crypto mining, coal mining and chemicals from the briefing note, which was obtained under the freedom of information law and came amid scrutiny over B.C. electricity imports because it feared that disclosure would harm Crown corporation finances and third-party business interests.

Crypto mining requires high-powered computers to run and be cooled around the clock constantly. So much so that cabinet ordered the BC Utilities Commission (BCUC) last December to place an 18-month moratorium on crypto mining connection requests, while other jurisdictions, such as the N.B. Power crypto review, undertook similar pauses to assess impacts.

In a news release, the government said 21 projects seeking 1,403 megawatts were temporarily suspended. The government said that would be enough to power 570,000 homes or 2.1 million electric vehicles for a year.

A report issued by BC Hydro before Christmas said there were already 166 megawatts of power from operational projects at seven sites. Another six projects with 107 megawatts were nearing connection, bringing its total load to 273 megawatts.

Richard McCandless, a retired assistant deputy minister who analyzes the performance of BC Hydro and the Insurance Corp of British Columbia, said China's May 2021 ban on crypto mining had a major ripple effect on those seeking cheap and reliable power.

"When China cracked down, these guys fled to different areas," McCandless said in an interview. "So they took their computers and went somewhere else. Some wound up in B.C."

He said BC Hydro's secrecy about crypto loads appears rooted in the Crown corporation underestimating load demand, even as new generating stations were commissioned to bolster capacity.

"Crypto is up so dramatically; they didn't want to show that," McCandless said. "Maybe they didn't want to be seen as being asleep at the switch."

Indeed, BCUC's April 21 decision on BC Hydro's 2021 revenue forecasts through the 2025 fiscal year included BC Hydro's forecast increase for crypto and data centres of about 100 gigawatt-hours through fiscal 2024 before returning to 2021 levels by 2025. In addition, the BCUC document said that BC Hydro's December 2020 load forecast was lower than the previous one because of project cancellations and updated load requests, amid ongoing nuclear power debate in B.C.

"Given the segment's continued uncertainty and volatility, the forecast assumes these facilities are not long-lived," the BC Hydro application said.

A September 2022 report to the White House titled "Crypto-Assets in the United States" said increased electricity demand from crypto-asset mining could lead to rate increases.

"Crypto-asset mining in upstate New York increased annual household electric bills by [US]$82 and annual small business electric bills by [US]$164, with total net losses from local consumers and businesses estimated to be [US]$179 million from 2016-2018," the report said. The information mentioned Plattsburgh, New York's 18-month moratorium in 2018. Manitoba announced a similar suspension almost a month before B.C.

B.C.'s total core domestic load of 23,666 gigawatt-hours was two percent higher than the service plan amid BC Hydro call for power planning, with commercial and light industrial (9,198 gigawatt-hours) and residential (7,877 gigawatt-hours) being the top two customer segments.

"A cooler spring and warmer summer supported increased loads, as the Western Canada drought strained hydropower production regionally. However, warmer daytime temperatures in September impacted heating more than cooling," said the briefing note.

"Commercial and light industrial consumption benefited from warmer temperatures in August but has also been impacted to a lesser degree by the reduced heating load in the first three weeks of October."

Loads improved relative to 2021, but offices, retail businesses and restaurants remained below pre-pandemic levels. Education, recreation and hotel sectors were in line with pre-pandemic levels. Light industrial sector growth offset the declines.

For heavy industry, pulp and paper electricity use was 15 percent ahead of forecast, but wood manufacturing was 16 percent below forecast. The briefing note said oil and gas grew nine percent relative to the previous year but, alongside ongoing LNG power demand, fell nine percent below the service plan.

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