LED milestone passes quietly

By Toronto Star


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It passed by without much mention, but early this summer a major milestone was reached in the realm of LED lighting.

Home Depot quietly began taking online orders for a light-emitting diode LED bulb designed to replace a standard 40-watt incandescent bulb. It consumes only 8.6 watts of power, boasts superior light quality, can be dimmed, and unlike compact fluorescent bulbs doesn't contain any mercury.

The milestone is that Home Depot is selling this bulb for $20 US, half the price of most other retail offerings. Sounds pricey, yes, but keep in mind the bulb is supposed to last more than two decades and will save you at least $200 in energy costs over that time.

Industry watchers say the bulb, made for Home Depot by Lighting Sciences Group, will put pressure on other bulb manufacturers, including General Electric, Philips and Osram Sylvania, to speed up their own production plans and push costs down.

A number of manufacturers are expected to come out with 60-watt equivalent LED bulbs before year's end. It will be interesting to see what price points they hit.

"We're in the midst of the great lighting transformation, with solid-state LEDs on the cusp of transforming the lighting industry," Eric Wesoff, a senior analyst at GTM Research, declared. "The Edison bulb will soon be a relic and CFLs an interim step."

If you ask me, it can't come soon enough. I use compact fluorescent lamps CFLs throughout my home, and like most people are happy that the price of these energy-efficient bulbs have come down so dramatically. Too often, however, they have let me down.

The mercury issue bugs me, but with proper disposal I can live with that. Even the light quality of CFLs has improved and won me over. My problem is that they fail prematurely, despite claims of long life.

This happened most recently while sitting in my living room. I have four recessed lighting fixtures in this room that can be dimmed, and one of them contains a CFL bulb that was designed for the purpose.

I moved into this house only three years ago, but just recently the CFL sizzled, popped and died. My plan was to replace the three remaining incandescent bulbs with a CFL when they burned out. Unfortunately, the CFL blew first. That's not how it's supposed to happen.

Still, even at $20 a bulb I'm not sure I'd opt for the LED option just yet. Past studies indicate that $10 is the threshold to fall below before most consumers start biting.

CFLs had to make the same journey. The average cost of a standard CFL hit about $19 back in 1996, fell to $11 in 1999 and below $6 by 2003, according to a four-year-old report by U.S.-based Pacific Northwest National Laboratory. Today, they're about $1.50 each.

Will it take seven years to get to a $6 LED bulb, and 14 years to get to $1.50? Given market demand for energy-efficient products and government attention to energy efficiency and conservation, I'm convinced LEDs face a much shorter path.

In 1996, for example, retailers such as Wal-Mart and Home Depot weren't using their purchasing power to accelerate the introduction and adoption of green products and put pressure on rivals to do the same. Today, exerting such influence is creating strategic benefits in the retail market.

As we wait for more affordable consumer LED products, it's encouraging to see many niche markets taking off.

One example is streetlights, most of which are based on high-pressure sodium HPS fixtures that give off a yellowish, gloomy light and contain mercury. These HPS lights need to be replaced every few years for between $100 and $250 per fixture.

LED lights don't have these maintenance costs – once installed they can be left alone for 20 years or so. They give off a better quality light, and they consume less electricity. Energy savings can range from 50 to 80 per cent, and that's excluding the savings on maintenance.

Halifax-based LED Roadway Lighting, which can churn out up to 5,000 of its LED streetlight fixtures each week, says there are 4.3 million streetlights in Canada. Assuming all were HPS lights, the company estimates total costs to municipalities and provinces would be nearly $16 billion over 20 years, about $12 billion of that related to electricity and $3.27 billion to maintenance.

President and co-founder Charles Cartmill says total cost would be reduced to $6.73 billion if all HPS lights were switched to his company's LED streetlight fixtures. His fixtures would cost nearly four times as much, but electricity costs would be 60 per cent lower and maintenance would be a staggering 99 per cent lower.

"Business is taking off," says Cartmill.

There's little wonder why.

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Elizabeth May wants a fully renewable electricity grid by 2030. Is that possible?

Green Party Mission Possible 2030 outlines a rapid transition to renewable energy, electric vehicles, carbon pricing, and grid modernization, phasing out oil and gas while creating green jobs, public transit upgrades, and building retrofits.

 

Key Points

A Canadian climate roadmap to decarbonize by 2030 via renewables, EVs, carbon pricing, and grid upgrades.

✅ Ban on new gas cars by 2030; accelerate EV adoption and charging.

✅ 100 percent renewable-powered grid with interprovincial links.

✅ Just transition: retraining, green jobs, and building retrofits.

 

Green Party Leader Elizabeth May has a vision for Canada in 2030. In 11 years, all new cars will be electric. A national ban will prohibit anyone from buying a gas-powered vehicle. No matter where you live, charging stations will make driving long distances easy and affordable. Alberta’s oil industry will be on the way out, replaced by jobs in sectors such as urban farming, renewable energy and retrofitting buildings for energy efficiency. The electric grid will be powered by 100 per cent renewable energy as Canada’s race to net-zero accelerates.

It’s all part of the Greens’ “Mission Possible” – a detailed plan released Monday with a level of ambition made clear by its very name. May insists it’s the only way to confront the climate crisis head-on before it’s too late.

“We have to set our targets on what needs to be done. You can’t negotiate with physics,” May told CTV’s Power Play on Monday.

But is that 2030 vision realistic?

CTVNews.ca spoke with experts in economics, political policy, renewable energy and climate science to explore how feasible May’s plan is, how much it would cost and what transitioning to an environmentally-centred economy would look like for everyday Canadians.

 

MOVING TO A GREEN ECONOMY

Recent polling from Nanos Research shows that the environment and climate change is the top issue among voters this election.

If the Greens win a majority on Oct. 21 – an outcome that May herself acknowledged isn’t likely – it would signal a major restructuring of the Canadian economy.

According to the party’s platform, jobs in the fuels sectors, such as oil and gas production in Alberta, would eventually disappear. The Greens say those job losses would be replaced by opportunities in a variety of fields including renewable energy, farming, public transportation, manufacturing, construction and information technology.

The party would also introduce a guaranteed livable income and greater support for technical and educational training to help workers transition to new jobs.

But Jean-Thomas Bernard, an economist who specializes in energy markets, said plenty of people in today’s energy sector, such as oil and gas workers, wouldn’t have the skills to make that transition.

“Quite a few of these jobs have low technical requirements. Driving a truck is driving a truck. So quite few of these people will not have the capacity to be recycled into well-paid jobs in the renewable sector,” he said.

“Maybe this would be for the young generation, but not people who are 40, 45, 50.”

Ryan Katz-Rosene is an associate professor at the University of Ottawa who researches environmental policy. He says May’s overall pitch is technically possible but would require a huge amount of enthusiasm on behalf of the public. 

“The plan in itself is not physically impossible. It is theoretically achievable. But it would require a major, major change in the urgency and the level of action, the level of investment, the level of popular urgency, the level of political commitment,” he said.

“But it’s not completely fantastical in it being theoretically impossible.”

 

PHASING OUT BITUMEN PRODUCTION

Katz-Rosene said that, under the Greens’ plan, Canadians would need to pay for a bold carbon pricing plan that helps shift the country away from fossil fuels and has significant implications for electricity grids, he said. It would also mean dramatically upscaling the capacity of Canada’s existing electrical grid to account for millions of new electric cars, reflecting the need for more electricity to hit net-zero as demand grows.

 “Given Canada’s slow attempt to climate action and pretty lacklustre results in these years, to be frank, this plan is very, very difficult to achieve. We’re talking 11 years from now. But things change, people change, and sometimes that change can occur very quickly. Just look at the type of climate mobilization we’re seen among young people in the last year, or the last five years.”

Bernard, the economist, is less optimistic. He cited international agreements such as the Kyoto Protocol from 1997 and the more recent Paris Climate Agreement and said that little has come of those plans.

A climate solution with teeth, he suggests, would need to be global – something that no federal government can completely control.

“I find a lot this talk to be overly optimistic. I don’t know why we keep having this talk that is overly optimistic,” he said, adding that he believes humankind is already beyond the point of being able to stop irreversible climate change. 

“I think we are moving toward a mess, but the effort to control that is still not there.”

As for transitioning away from Canada’s oil industry, Bernard said May’s plan simply wouldn’t work.

“Trying to block some oil production here and there means more oil will be produced elsewhere,” he said. “Canada could become a clean country, but worldwide it would not be much.”

Mike Hudema, a climate organizer with Greenpeace Canada, thinks the Green Party’s promises for 2030 are big – and that’s kind of the point.

“They are definitely ambitious, but ambition is exactly what these times call for.  Unfortunately our government has delayed acting on this problem for so long that we have a very short timeline which we have to turn the ship,” he said.

“So this is the type of ambition that the science is calling for. So yes, I believe that if we here in Canada were to put our minds to addressing this problem, then we have the ability to reach it in that 2030 timeframe.”

In a statement to CTVNews.ca, a Green Party spokesperson said the 2030 timeline is intended to meet the 45 per cent reduction in emissions by 2030 as laid out by the Intergovernmental Panel on Climate Change.

“If we miss the 2030 target, we risk triggering runaway global warming,” the spokesperson said.

 

GREENING THE GRID BY 2030

Greening Canada’s existing electric grid – a goal May has pegged to 2030 – is quite feasible, Katz-Rosene said, and cleaning up Canada’s electricity is critical to meeting climate pledges. Already, 82 per cent of the country’s electric grid is run off of renewable resources, which makes Canada a world leader in the field, he said.

Hudema agrees.

“It is feasible. Canada does have a grid already that has a lot of renewables in it. So yes we can definitely make it over the hump and complete the transition. But we do need investments in our electric grid infrastructure to ensure a certain capability. That comes with tremendous job growth. That’s the exciting part that people keep missing,” Hudema said.

But Bernard said switching the grid to 100 per cent renewables would be quite difficult. He suggested that the Greens’ 2030 vision would require Ontario and Quebec’s hydro production to help power the Prairies.

“To think we could boost (hydro production) much more in order to meet Saskatchewan and Alberta’s needs? Oh boy. To do this before 2030? I think that’s not reasonable, not feasible.”

In a statement to CTV News, the Greens said their strategy includes building new connections between eastern Manitoba and western Ontario to transmit clean energy. They would also upgrade existing connections between New Brunswick and Nova Scotia and between B.C. and Alberta to boost reliability.

A number of “micro-grids” in local communities capable of storing clean energy would help reduce the dependency on nationwide distribution systems, the party said.

Even so, the Greens acknowledged that, by 2030, some towns and cities will still be using some fossil fuels, and that even by 2050 – the goal for achieving overall carbon neutrality – some “legacy users” of fossil fuels will remain.

However, according to party projections, the emissions of these “legacy users” would be at most 8 per cent of today’s levels and those emissions would be “more than completely offset” by re-forestation and new technologies, such as CO2 capture and storage.

 

ELECTRIC VEHICLE REVOLUTION

The Green Party’s platform promises to revolutionize the Canadian auto sector. By 2030, all new cars made in Canada would be electric and federal EV sales regulations would prohibit the sale of cars powered by gasoline.

Danny Harvey, a geography professor with the University of Toronto who specializes in renewable energy, said he thinks May’s plan for making a 100 per cent renewable-powered electric grid is feasible.

On cars, however, he thinks the emphasis on electric vehicles is “misplaced.”

“At this point in time we should be requiring automobiles to transition, by 2030, to making cars that can go three times further on a litre of gasoline than at present. This would require selling only advanced hybrid-electric vehicles (HEVs), which would run entirely on gasoline (like current HEVs),” he said.

“After that, and when the grid is fully ready, we could make the transition to fully electric or plugin hybrid electric vehicles, possibly using H2 for long-distance driving.”

At the moment, zero-emissions vehicles account for just over 2 per cent of annual vehicle sales in Canada. Katz-Rosene said that “isn’t a whole lot,” but the industry is on an exponential growth curve that doesn’t show any signs of slowing.

The trouble with May’s 2030 goal on electric vehicles, he said, has to do with Canadians’ taste in vehicles. In short: Canadians like trucks.

“The biggest obstacle I see is that I don’t even think it’s possible to get a light-duty truck, a Ford F150, in an electric model in Canada. And that’s the most popular type of vehicle,” he said.

However, if a zero emissions truck were on the market – something that automakers are already working on – then that could potentially shake things up, especially if the government introduces incentives for electric vehicles and higher taxes on gasoline, he said.

 

WHAT ABOUT THE COST?

CTVNews.ca reached out to the Green Party to ask how it would pay to revamp the electrical grid. The party did not give a precise figure but said that the plan “has been estimated to cost somewhat less” than the Trans Mountain Pipeline expansion.

The Greens have vowed to scrap the expansion and put that money toward the project.

Upgrading the electric grid to 100 per cent sustainable energy would also be a cost-effective, long-term solution, the Greens believe, though critics say Ottawa is making electricity more expensive for Albertans amid the transition.

“Current projects for renewable energy in Canada and worldwide are consistently at lower capital and operating costs than any type of fossil, hydro or nuclear energy project,” the party spokesperson said.

The party’s platform includes other potential sources of money, including closing tax loopholes for the wealthy, cracking down on offshore tax dodging and a new corporate tax on e-commerce companies, such as Facebook, Amazon and Netflix. The Greens have also vowed to eliminate all fossil fuel subsidies.

As for the economic realities, Katz-Rosene acknowledged that May’s plan may appeal to “radical” voters who view economic growth as anathema to addressing climate change.

But while May’s plan would be disruptive, it isn’t anti-capitalist, he said.

“It’s restrained capitalism. But it by no means an anti-capitalist platform, and none of the parties have an anti-capitalist platform by any stretch of the imagination,” Katz-Rosene said.

From an economist’s perspective, Bernard said the plan is still “very costly” and that taxes can only go so far.

“In the end, no corporation operates at a loss. At some stage, these taxes have to go to the users,” he said.

But conversations around money must also consider the cost of inaction on climate change, Hudema said.

“Costing (Elizabeth May) is always a concern and how we’re going to afford these things is something we definitely need to keep top of mind. But within that conversation we need to look at what is the cost of not doing what is in line with what the science is saying. I would say that cost is much more substantial.”

“The forecast, if we don’t act – it’s astronomical.”

 

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How Bitcoin's vast energy use could burst its bubble

Bitcoin Energy Consumption drives debate on blockchain mining, proof-of-work, carbon footprint, and emissions, with CCAF estimates in terawatt hours highlighting electricity demand, fossil fuel reliance, and sustainability concerns for data centers and cryptocurrency networks.

 

Key Points

Electricity used by Bitcoin proof-of-work mining, often fossil-fueled, estimated by CCAF in terawatt hours.

✅ CCAF: 40-445 TWh, central estimate ~130 TWh

✅ ~66% of mining electricity sourced from fossil fuels

✅ Proof-of-work increases hash rate, energy, and emissions

 

The University of Cambridge Centre for Alternative Finance (CCAF) studies the burgeoning business of cryptocurrencies.

It calculates that Bitcoin's total energy consumption is somewhere between 40 and 445 annualised terawatt hours (TWh), with a central estimate of about 130 terawatt hours.

The UK's electricity consumption is a little over 300 TWh a year, while Argentina uses around the same amount of power as the CCAF's best guess for Bitcoin, as countries like New Zealand's electricity future are debated to balance demand.

And the electricity the Bitcoin miners use overwhelmingly comes from polluting sources, with the U.S. grid not 100% renewable underscoring broader energy mix challenges worldwide.

The CCAF team surveys the people who manage the Bitcoin network around the world on their energy use and found that about two-thirds of it is from fossil fuels, and some regions are weighing curbs like Russia's proposed mining ban amid electricity deficits.

Huge computing power - and therefore energy use - is built into the way the blockchain technology that underpins the cryptocurrency has been designed.

It relies on a vast decentralised network of computers.

These are the so-called Bitcoin "miners" who enable new Bitcoins to be created, but also independently verify and record every transaction made in the currency.

In fact, the Bitcoins are the reward miners get for maintaining this record accurately.

It works like a lottery that runs every 10 minutes, explains Gina Pieters, an economics professor at the University of Chicago and a research fellow with the CCAF team.

Data processing centres around the world, including hotspots such as Iceland's mining strain, race to compile and submit this record of transactions in a way that is acceptable to the system.

They also have to guess a random number.

The first to submit the record and the correct number wins the prize - this becomes the next block in the blockchain.

Estimates for bitcoin's electricity consumption
At the moment, they are rewarded with six-and-a-quarter Bitcoins, valued at about $50,000 each.

As soon as one lottery is over, a new number is generated, and the whole process starts again.

The higher the price, says Prof Pieters, the more miners want to get into the game, and utilities like BC Hydro suspending new crypto connections highlight grid pressures.

"They want to get that revenue," she tells me, "and that's what's going to encourage them to introduce more and more powerful machines in order to guess this random number, and therefore you will see an increase in energy consumption," she says.

And there is another factor that drives Bitcoin's increasing energy consumption.

The software ensures it always takes 10 minutes for the puzzle to be solved, so if the number of miners is increasing, the puzzle gets harder and the more computing power needs to be thrown at it.

Bitcoin is therefore actually designed to encourage increased computing effort.

The idea is that the more computers that compete to maintain the blockchain, the safer it becomes, because anyone who might want to try and undermine the currency must control and operate at least as much computing power as the rest of the miners put together.

What this means is that, as Bitcoin gets more valuable, the computing effort expended on creating and maintaining it - and therefore the energy consumed - inevitably increases.

We can track how much effort miners are making to create the currency.

They are currently reckoned to be making 160 quintillion calculations every second - that's 160,000,000,000,000,000,000, in case you were wondering.

And this vast computational effort is the cryptocurrency's Achilles heel, says Alex de Vries, the founder of the Digiconomist website and an expert on Bitcoin.

All the millions of trillions of calculations it takes to keep the system running aren't really doing any useful work.

"They're computations that serve no other purpose," says de Vries, "they're just immediately discarded again. Right now we're using a whole lot of energy to produce those calculations, but also the majority of that is sourced from fossil energy, and clean energy's 'dirty secret' complicates substitution."

The vast effort it requires also makes Bitcoin inherently difficult to scale, he argues.

"If Bitcoin were to be adopted as a global reserve currency," he speculates, "the Bitcoin price will probably be in the millions, and those miners will have more money than the entire [US] Federal budget to spend on electricity."

"We'd have to double our global energy production," he says with a laugh, even as some argue cheap abundant electricity is getting closer to reality today. "For Bitcoin."

He says it also limits the number of transactions the system can process to about five per second.

This doesn't make for a useful currency, he argues.

Rising price of bitcoin graphic
And that view is echoed by many eminent figures in finance and economics.

The two essential features of a successful currency are that it is an effective form of exchange and a stable store of value, says Ken Rogoff, a professor of economics at Harvard University in Cambridge, Massachusetts, and a former chief economist at the International Monetary Fund (IMF).

He says Bitcoin is neither.

"The fact is, it's not really used much in the legal economy now. Yes, one rich person sells it to another, but that's not a final use. And without that it really doesn't have a long-term future."

What he is saying is that Bitcoin exists almost exclusively as a vehicle for speculation.

So, I want to know: is the bubble about to burst?

"That's my guess," says Prof Rogoff and pauses.

"But I really couldn't tell you when."

 

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California Skirts Blackouts With Heat Wave to Test Grid Again

California Heatwave Power Crisis strains CAISO as record demand triggers emergency alerts, demand response, and rolling blackout warnings. PG&E prepares outages while solar fades at peak, drought cuts hydropower, and reliability hinges on conservation.

 

Key Points

Extreme heat driving record demand in California, straining CAISO and prompting conservation to avert rolling blackouts.

✅ CAISO hit a record 52 GW peak load amid triple-digit heat

✅ Emergency alerts spurred demand response, cutting load spikes

✅ Solar drop and drought-weakened hydro worsened evening shortfall

 

California narrowly avoided blackouts for a second successive day even as blistering temperatures pushed electricity demand to a record and stretched the state’s power grid close to its limits.

The state imposed its highest level of energy emergency for several hours late Tuesday and urged consumers to turn off lights, curb air conditioners and shut off power-hungry appliances after a day of extraordinary stress on electricity infrastructure as temperatures in many regions topped 110 degrees Fahrenheit (43 Celsius).

Electricity use had reached 52 gigawatts Tuesday, easily breaking a record that stood since 2006, according to the California Independent System Operator. The state issued emergency alerts direct to cell phones in several counties asking for immediate power conservation, and grid data show that demand plunged in response. Emergency measures were finally lifted at about 9 p.m. local time.

Much of California remains under an excessive heat warning through Friday, with authorities already preparing for more severe pressure on the power system on Wednesday amid a looming supply shortage across the grid. “We aren’t out of the woods yet,” Governor Gavin Newsom said in a message posted on his office’s Twitter account. “We will see continued extreme temps this week and if we rallied today, we can do it again.”

The state’s largest power company, PG&E Corp. said earlier Tuesday that it had notified about 525,000 homes and businesses that they could lose power for up to two hours. That warning came as temperatures in downtown Sacramento hit 116 degrees Fahrenheit, topping a previous 1925 record.

Newsom earlier signed an executive order extending until Friday emergency measures to free up additional power supplies, rather than allowing them to expire as planned on Wednesday. Many state buildings were ordered to power down lights and air conditioning at 4 p.m., and he urged residents and businesses to conserve the equivalent of 3 gigawatts of power in order to stave off blackouts. 

California's Early Brush With Blackouts Bodes Ill For Days Ahead
The downtown skyline during a heatwave in Los Angeles.Photographer: Eric Thayer/Bloomberg
California faced a similar energy emergency Monday, which was alleviated in part by activating temporary gas-fired power plants operated by the California Department of Water Resources. The current heat wave, which began in the last week of August, is remarkable in both its ferocity and duration, according to officials. 

The prospect of outages underscores how grids have become vulnerable in the face of extreme weather as California transitions from fossil fuels to renewable energy, an approach it is increasingly exporting to Western states as well. California's climate policies have aggressively closed natural-gas power plants in recent years, leaving the state increasingly dependent on solar farms that go dark late in the day just as electricity demand peaks. At the same time, the state is enduring the Southwest’s worst drought in 1,200 years, sapping hydropower production.

The average 15-minute wholesale power price in Caiso surged to $1,806 a megawatt-hour at 4:45 p.m. local time, according to the grid operator’s website.

Average day-ahead prices top $300 a megawatt-hour in Southern California
  
A break from the heat will come across Southern California later this week, thanks to Tropical Storm Kay in the Pacific Ocean, according to weather officials. Kay is forecast to edge up the coastline of Mexico’s Baja California peninsula. As it moves north, the storm will pump moisture and clouds into Southern California and Arizona, taking an edge off the heat.

 

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Cape Town to Build Own Power Plants, Buy Additional Electricity

Cape Town Renewable Energy Plan targets 450+ MW via solar, wind, and battery storage, cutting Eskom reliance, lowering greenhouse gas emissions, stabilizing electricity prices, and boosting grid resilience through municipal procurement, PPAs, and city-owned plants.

 

Key Points

A municipal plan to procure over 450 MW, cut Eskom reliance, stabilize prices, and reduce Cape Town emissions.

✅ Up to 150 MW from private plants within the city

✅ 300 MW to be purchased from outside Cape Town later

✅ City financing 100-200 MW of its own generation

 

Cape Town is seeking to secure more than 450 megawatts of power from renewable sources to cut reliance on state power utility Eskom Holdings SOC Ltd., where wind procurement cuts were considered during lockdown, and reduce greenhouse gas emissions.

South Africa’s second-biggest city is looking at a range of options, including geothermal exploration in comparable markets, and expects the bulk of the electricity to be generated from solar plants, Kadri Nassiep, the city’s executive director of energy and climate change, said in an interview.

On July 14 the city of 4.6 million people released a request for information to seek funding to build its own plants. This month or next it will seek proposals for the provision of as much as 150 megawatts from privately owned plants, largely solar additions, to be built and operated within the city, he said. As much as 300 megawatts may also be purchased at a later stage from plants outside of Cape Town, according to Nassiep.

The city could secure finance to build 100 to 200 megawatts of its own generation capacity, Nassiep said. “We realized that it is important for the city to be more in control around the pricing of the power,” he added.

Power Outages

Cape Town’s foray into the securing of power from sources other than Eskom comes after more than a decade of intermittent electricity outages, while elsewhere in Africa coal projects face scrutiny from lenders, because the utility can’t meet national demand. The government last year said municipalities could find alternative suppliers.

Earlier this month Ethekwini, the municipal area that includes the city of Durban, issued a request for information for the provision of 400 megawatts of power, similar to BC Hydro’s call for power driven by EV uptake.

The City of Johannesburg will in September seek information and proposals for the construction of a 150-megawatt solar plant, reflecting moves like Ontario’s new wind and solar procurements to tackle supply gaps, 50 megawatts of rooftop solar panels and the refurbishment of an idle gas-fired plant that could generate 20 megawatts, it said in June. It will also seek information for the installation of 100 megawatts of battery storage.

Cape Town, which uses a peak of 1,800 megawatts of electricity in winter, hopes to start generating some of its own power next year, aligning with SaskPower’s 2030 renewables plan seen in Canada, according to a statement that accompanied its request for financing proposals.
 

 

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DBRS Confirms Ontario Power Generation Inc. at A (low)/R-1 (low), Stable Trends

OPG Credit Rating affirmed by DBRS at A (low) issuer and unsecured debt, R-1 (low) CP, Stable trends, backed by a supportive regulatory regime, strong leverage metrics, and provincial support; monitor Darlington Refurbishment costs.

 

Key Points

It is DBRS's confirmation of OPG at A (low) issuer and unsecured, R-1 (low) CP, with Stable outlooks.

✅ Stable trends; strong cash flow-to-debt and capital ratios

✅ Provincial financing via OEFC; Fair Hydro Trust ring-fenced

✅ Darlington Refurbishment on budget; cost overruns remain risk

 

DBRS Limited (DBRS) confirmed the Issuer Rating and the Unsecured Debt rating of Ontario Power Generation Inc. (OPG or the Company) at A (low) and the Commercial Paper (CP) rating at R-1 (low), amid sector developments such as Hydro One leadership efforts to repair government relations and measures like staff lockdowns at critical sites.

All trends are Stable. The ratings of OPG continue to be supported by (1) the reasonable regulatory regime in place for the Company's regulated generation facilities, including stable pricing signals for large users, (2) strong cash flow-to-debt and debt-to-capital ratios and (3) continuing financial support from its shareholder, the Province of Ontario (the Province; rated AA (low) with a Stable trend by DBRS). The Province, through its agent, the Ontario Electricity Financial Corporation (rated AA (low) with a Stable trend by DBRS), provides most of OPG's financing (approximately 43% of consolidated debt). The Company's remaining debt includes project financing (31%), including projects such as a battery energy storage system proposed near Woodstock, non-recourse debt issued by Fair Hydro Trust (Senior Notes rated AAA (sf), Under Review with Negative Implications by DBRS; 11%), CP (2%) and Senior Notes issued under the Medium Term Note Program (12%).

In March 2019, the Province introduced 'Bill 87, Fixing the Hydro Mess Act, 2019' which includes winding down the Fair Hydro Plan, and later introduced electricity relief to mitigate customer bills during the COVID-19 pandemic. OPG will remain as the Financial Services Manager for the outstanding Fair Hydro Trust debt, which will become obligations of the Province. DBRS does not expect this development to have a material impact on the Company as (1) the Fair Hydro Trust debt will continue to be bankruptcy-remote and ring-fenced from OPG (all debt is non-recourse to the Company) and (2) the credit rating on the Company's investment in the Subordinated Notes (rated AA (sf), Under Review with Negative Implications by DBRS) will likely remain investment grade while the Junior Subordinated Notes (rated A (sf), Under Review with Developing Implications by DBRS) will not necessarily be negatively affected by this change (see the DBRS press release, 'DBRS Maintains Fair Hydro Trust, Series 2018-1 and Series 2018-2 Notes Under Review,' dated March 26, 2019, for more details).

OPG's key credit metrics improved in 2018, following the approval of its 2017-2021 rates application by the Ontario Energy Board in December 2017, alongside the Province's energy-efficiency programs that shape demand. The Company's profitability strengthened significantly, with corporate return on equity (ROE) of 7.8% (adjusted for a $205 million gain on sale of property; 5.1% in 2017) closer to the regulatory allowed ROE of 8.78%. However, DBRS continues to view a positive rating action as unlikely in the short term because of the ongoing large capital expenditures program, including the $12.8 billion Darlington Refurbishment project, amid ongoing oversight following the nuclear alert investigation in Ontario. However, a downgrade could occur should there be significant cost overruns with the Darlington Refurbishment project that result in stranded costs. DBRS notes that the Darlington Refurbishment project is currently on budget and on schedule.

 

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Rising Solar and Wind Curtailments in California

California Renewable Energy Curtailment highlights grid congestion, midday solar peaks, limited battery storage, and market constraints, with WEIM participation and demand response programs proposed to balance supply-demand and reduce wasted solar and wind generation.

 

Key Points

It is the deliberate reduction of solar and wind output when grid limits or low demand prevent full integration.

✅ Grid congestion restricts transmission capacity

✅ Midday solar peaks exceed demand, causing surplus

✅ Storage, WEIM, and demand response mitigate curtailment

 

California has long been a leader in renewable energy adoption, achieving a near-100% renewable milestone in recent years, particularly in solar and wind power. However, as the state continues to expand its renewable energy capacity, it faces a growing challenge: the curtailment of excess solar and wind energy. Curtailment refers to the deliberate reduction of power output from renewable sources when the supply exceeds demand or when the grid cannot accommodate the additional electricity.

Increasing Curtailment Trends

Recent data from the U.S. Energy Information Administration (EIA) highlights a concerning upward trend in curtailments in California. In 2024, the state curtailed a total of 3,102 gigawatt-hours (GWh) of electricity generated from solar and wind sources, surpassing the 2023 total of 2,660 GWh. This represents a 32.4% increase from the previous year. Specifically, 2,892 GWh were from solar, and 210 GWh were from wind, marking increases of 31.2% and 51.1%, respectively, compared to the first nine months of 2023.

Causes of Increased Curtailment

Several factors contribute to the rising levels of curtailment:

  1. Grid Congestion: California's transmission infrastructure has struggled to keep pace with the rapid growth of renewable energy sources. This congestion limits the ability to transport electricity from generation sites to demand centers, leading to curtailment.

  2. Midday Solar Peaks: Amid California's solar boom, solar energy production typically peaks during the midday when electricity demand is lower. This mismatch between supply and demand results in excess energy that cannot be utilized, necessitating curtailment.

  3. Limited Energy Storage: While battery storage technologies are advancing, California's current storage capacity is insufficient to absorb and store excess renewable energy for later use. This limitation exacerbates curtailment issues.

  4. Regulatory and Market Constraints: Existing market structures and regulatory frameworks may not fully accommodate the rapid influx of renewable energy, leading to inefficiencies and increased curtailment.

Economic and Environmental Implications

Curtailment has significant economic and environmental consequences. For renewable energy producers, curtailed energy represents lost revenue and undermines the economic viability of new projects. Environmentally, curtailment means that clean, renewable energy is wasted, and the grid may rely more heavily on fossil fuels to meet demand, counteracting the benefits of renewable energy adoption.

Mitigation Strategies

To address the rising curtailment levels, California is exploring several strategies aligned with broader decarbonization goals across the U.S.:

  • Grid Modernization: Investing in and upgrading transmission infrastructure to alleviate congestion and improve the integration of renewable energy sources.

  • Energy Storage Expansion: Increasing the deployment of battery storage systems to store excess energy during peak production times and release it during periods of high demand.

  • Market Reforms: Participating in the Western Energy Imbalance Market (WEIM), a real-time energy market that allows for the balancing of supply and demand across a broader region, helping to reduce curtailment.

  • Demand Response Programs: Implementing programs that encourage consumers to adjust their energy usage patterns, such as shifting electricity use to times when renewable energy is abundant.

Looking Ahead

As California continues to expand its renewable energy capacity, addressing curtailment will be crucial to ensuring the effectiveness and sustainability of its energy transition. By investing in grid infrastructure, energy storage, and market reforms, the state can reduce curtailment levels and make better use of its renewable energy resources, while managing challenges like wildfire smoke impacts on solar output. These efforts will not only enhance the economic viability of renewable energy projects but also contribute to California's 100% clean energy targets by maximizing the use of clean energy and reducing reliance on fossil fuels.

While California's renewable energy sector faces challenges related to curtailment, proactive measures and strategic investments can mitigate these issues, as scientists continue to improve solar and wind power through innovation, paving the way for a more sustainable and efficient energy future.

 

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