Kentucky power bills increasing

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Customers of rural electric co-ops will immediately notice a difference in the amount due on their monthly bills.

The Kentucky Public Service Commission (PSC) accepted a settlement that permits East Kentucky Power Cooperative, Inc. to raise the company's wholesale rates to increase its annual revenue by nearly 7 percent, or $59.5 million.

Rowan County customers who get power from EKPC include those of Fleming-Mason Energy, Grayson Rural Electric Corp. and Clark Energy. These customers will pay close to an additional $5.60 per month. The rate increase took effect April 1.

"We understand that certainly in these times, with the economy in the shape that it's in, nobody likes to see increases in cost," EKPC Spokesman Nick Comer said. "We're doing everything we can to try to keep those costs low for our members."

Comer said the rate increase will actually save energy customers money in the long run. EKPC has been purchasing power from outside sources because of a shortage of generating capacity and unscheduled shutdowns at its generating facilities.

EKPC requested the rate increase to help pay for a new unit at its H.L. Spurlock Station power plant in Maysville.

"This unit is important to East Kentucky Power in meeting the demand for power in Kentucky," Comer said. "Members served by East Kentucky Power use double the national rate of energy. We've been looking at all our options in meeting that demand and managing that demand as well."

Comer said the 278 megawatt unit is one of America's cleanest coal-generating units online. The unit uses a technology called the Circulating Fluidized Bed process. CFB feeds limestone boilers, which results in low emission levels.

The new unit also is capable of burning renewable fuels. EKPC is working on a four-year study with the University of Kentucky to determine if switchgrass would be a good alternative source. Switchgrass is native to Kentucky.

EKPC asked the PSC for $15 million more in additional revenue on Oct. 31, 2008. The company negotiated with the Office of the Attorney General and the Kentucky Industrial Utility Customers and applied for the rate increase on Oct. 31, 2008. EKPC submitted the settlement to the PSC for review on March 13. A public hearing on the proposed settlement was held March 27.

Comer said he was not present but he heard that not many people from the public attended the public hearing.

EKPC provides electricity to and is owned by 16 not-for-profit distribution cooperatives, serving about 500,000 customers in 89 Kentucky counties.

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BC Ferries celebrates addition of hybrid ships

BC Ferries Island Class hybrid ferries deliver quiet, battery-electric travel with shore power readiness, lower emissions, and larger capacity on northern routes, protecting marine wildlife while replacing older vessels on Powell River and Texada services.

 

Key Points

Hybrid-electric ferries using batteries and diesel for quiet, low-emission service, ready for shore power upgrades.

✅ Operate 20% electric at launch; future full-electric via shore power

✅ 300 passengers, 47 vehicles; replacing older, smaller vessels

✅ Quieter transits help protect West Coast whales and marine habitat

 

In a champagne celebration, BC Ferries welcomed two new, hybrid-electric ships into its fleet Wednesday. The ships arrived in Victoria last month, and are expected to be in service on northern routes by the summer.

The Island Aurora and Island Discovery have the ability to run on either diesel or electricity.

"The pressure on whales on the West Coast is very intense right now," said BC Ferries CEO Mark Collins. "Quiet operation is very important. These ships will be gliding out of the harbor quietly and electrically with no engines running, that will be really great for marine space."

BC Ferries says the ships will be running on electricity 20 per cent of the time when they enter service, but the company hopes they can run on electricity full-time in the future. That would require the installation of shoreline power, which the company hopes to have in place in the next five to 10 years. Each ship costs around $40-million, a price tag that the federal government partially subsidized through CIB support as part of the electrification push.

When the two ships begin running on the Powell River to Texada, and Port McNeill, Alert Bay, and Sointula routes, two older vessels will be retired.

On Kootenay Lake, an electric-ready ferry is slated to begin operations in 2023, reflecting the province's wider shift.

"They are replacing a 47-car ferry, but on some routes they will be replacing a 25-car ferry, so those routes will see a considerable increase in service," said Collins.

Although the ships will not be servicing Colwood, the municipality's mayor is hoping that one day, they will.

"We can look at an electric ferry when we look at a West Shore ferry that would move Colwood residents to Victoria," said Mayor Rob Martin, noting that across the province electric school buses are hitting the road as well. "Here is a great example of what BC Ferries can do for us."

BC Ferries says it will be adding four more hybrid ships to its fleet by 2022, and is working on adding hybrid ships that could run from Victoria to Tsawwassen, similar to Washington State Ferries' hybrid upgrade underway in the region. 

B.C’s first hybrid-electric ferries arrived in Victoria on Saturday morning ushering in a new era of travel for BC Ferries passengers, as electric seaplane flights are also on the horizon for the region.

“It’s a really exciting day for us,” said Tessa Humphries, spokesperson for BC Ferries.

It took the ferries 60 days to arrive at the Breakwater District at Ogden Point. They came all the way from Constanta, Romania.

“These are battery-equipped ships that are designed for fully electric operation; they are outfitted with hybrid technology that bridges the gap until the EV charging infrastructure and funding is available in British Columbia,” said Humphries.

The two new "Island Class" vessels arrived at about 9 a.m. to a handful of people eagerly wanting to witness history.

Sometime in the next few days, the transport ship that brought the new ferries to B.C. will go out into the harbor and partially submerge to allow them to be offloaded, Humphries said.

The transfer process could happen in four to five days from now. After the final preparations are finished at the Breakwater District, the ships will be re-commissioned in Point Hope Maritime and then BC Ferries will officially take ownership.

“We know a lot of people are interested in this so we will put out advisory once we have more information as to a viewing area to see the whole process,” said Humphries.

Both Island Class ferries can carry 300 passengers and 47 vehicles. They won’t be sailing until later this year, but Humphries tells CTV News they will be named by the end of February. 

 

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Putting Africa on the path to universal electricity access

West and Central Africa Electricity Access hinges on utility reform, renewable energy, off-grid solar, mini-grids, battery storage, and regional grid integration, lowering costs, curbing energy poverty, and advancing SDG7 with sustainable, reliable power solutions.

 

Key Points

Expanding reliable power via renewables, grid trade, and off-grid systems to cut energy poverty and unlock inclusive growth.

✅ Utility reform lowers costs and improves service reliability

✅ Regional grid integration enables clean, least-cost power trade

✅ Off-grid solar and mini-grids electrify remote communities

 

As commodity prices soar and leaders around the world worry about energy shortages and prices of gasoline at the pump, millions of people in Africa still lack access to electricity.  One-half of the people on the continent cannot turn on a fan when temperatures go up, can’t keep food cool, or simply turn the lights on. This energy access crisis must be addressed urgently.

In West and Central Africa, only three countries are on track to give every one of their people access to electricity by 2030. At this slow pace, 263 million people in the region will be left without electricity in ten years.  West Africa has one of the lowest rates of electricity access in the world; only about 42% of the total population, and 8% of rural residents, have access to electricity.

These numbers, some far too big, others far too small, have grave consequences. Electricity is an important step toward enhancing people’s opportunities and choices. Access is key to boosting economic activity and contributes to improving human capital, which, in turn, is an investment in a country’s potential.  

Without electricity, children can’t do their schoolwork at night. Businesspeople can’t get information on markets or trade with each other. Worse, as the COVID-19 pandemic has shown so starkly, limited access to energy constrains hospital and emergency services, further endangering patients and spoiling precious medicine.  

What will it take to power West and Central Africa?  
As the African continent recovers from COVID-19 impacts, now is the critical time to accelerate progress towards universal energy access to drive the region’s economic transformation, promote socio-economic inclusion, and unlock human capital growth. Without reliable access to electricity, the holes in a country’s social fabric can grow bigger, those without access growing disenchanted with inequality.  

Tackling the Africa region’s energy access crisis requires four bold approaches. 

First, this involves making utilities financially viable. Many power providers in the region are cash-strapped, operate dilapidated and aging generation fleet and infrastructure. Therefore, they can’t deliver reliable and affordable electricity to their customers, let alone deliver electricity to those that currently must rely on inadequate alternatives to electricity. Overall, fewer than half of the utilities in Sub-Saharan Africa recover their operating costs, resulting in GDP losses as high as four percent in some countries.

Improving the performance of national utilities and greening their power generation mix is a prerequisite to lowering the costs of supply, thus expanding electricity access to those currently unelectrified, usually lower-income and often remote households. 

In that effort — and this a critical second point — West and Central African countries need to look beyond their borders and further integrate their national utilities and grids to other systems in the region. The region has an abundance of affordable clean energy sources — hydropower in Guinea, Mali, and Cote d’Ivoire; high solar irradiation in the Sahel — but the regional energy market is fragmented. 

Without efficient regional trade, many countries are highly dependent on one or two energy resources and heavily reliant on inefficient, polluting generation sources, requiring fuel imports linked to volatile international oil prices.

The vision of an integrated regional power market in countries of the Economic Community of West African States (ECOWAS) is coming a step closer to reality thanks to an ambitious program of cross-border interconnection projects. If countries take full advantage of this grid, the share of the region’s electricity consumption traded across borders would more than double from 8 percent today to about 17 percent by 2030. Overall, regional power trade could lower the lifecycle cost of West Africa’s power generation system by about 10 percent and provide greener energy by 2030. 

Third, electrification efforts need to be open to private sector investments and innovations, such as renewables like solar energy and battery storage, which have made a tremendous impact in enabling access for millions of poor and underserved households.  Specifically, off-grid solar systems and mini-grids have become a proven reliable way to provide affordable modern electricity services, powering homes in rural communities, healthcare facilities, and schools.

Burkina Faso, which enjoys one of the best solar radiation conditions in the region, is a successful example of leveraging the transformative impact of solar energy and battery storage. With support from the World Bank, the country is deploying solar energy to power its national grid, as well as mini-grids and individual household systems. Solar power with battery storage is competitive in Burkina Faso compared to other technologies and its government was successful in attracting private sector investments to support this technology.

Last, achieving universal electricity access will involve significant commitment from political leaders, especially developing policies and regulations that can attract high-quality investments.  

A significant step in that direction was achieved at the World Bank’s 2020 Annual Meetings with a commitment to set up the Powering Transformation Platform in each African country. Through the platform, each government will set their country-specific vision, goals and metrics, track progress, and explore and exchange innovative ideas and emerging best practices according to their own national energy needs and plans. 

This platform will bring together the elements needed to bring electricity to all in West and Central Africa and help attract new financing.

Over the last 3 years, the World Bank has doubled its investments to increase electricity access rates in Central and West Africa.  We have committed more than $7.8 billion to support 40 electricity access programs, of which more than half directly support new electricity connections. These operations are expected to provide access to 16 million people. The aim is to increase electricity access rates in West and Central Africa from 50 percent today to 64 percent by 2026.

However, World Bank’s financing alone is not enough. Our estimates show that nearly $20 billion are required for universal electrification across Sub-Saharan Africa, aligning with calls to quadruple power investment to meet demand, with about $10 billion annually needed for West and Central Africa. 

Closing the funding gap will require mobilizing traditional and new partners, especially the private sector, which is willing to invest if enabling conditions are in place, as well as philanthropic capital, that can fill in the space in areas not yet commercially attractive. The World Bank is ready to play a catalytical role in leveraging new investments. 

This is vital as less than a decade remains to reach the 2030 SDG7 goal of ensuring electricity for all through affordable, reliable, and modern energy services. As headlines worldwide focus on soaring energy prices in the developed world, we cannot lose sight of the vast populations in Africa that still cannot access basic energy services. This is the true global energy crisis.  

 

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When paying $1 for a coal power plant is still paying too much

San Juan Generating Station eyed for $1 coal-plant sale, as Farmington and Acme propose CCS retrofit, meeting emissions caps and renewable mandates by selling captured CO2 for enhanced oil recovery via a nearby pipeline.

 

Key Points

A New Mexico coal plant eyed for $1 and a CCS retrofit to cut emissions and sell CO2 for enhanced oil recovery.

✅ $400M-$800M CCS retrofit; 90% CO2 capture target

✅ CO2 sales for enhanced oil recovery; 20-mile pipeline gap

✅ PNM projects shutdown savings; renewable and emissions mandates

 

One dollar. That’s how much an aging New Mexico coal plant is worth. And by some estimates, even that may be too much.

Acme Equities LLC, a New York-based holding company, is in talks to buy the 847-megawatt San Juan Generating Station for $1, after four of its five owners decided to shut it down. The fifth owner, the nearby city of Farmington, says it’s pursuing the bargain-basement deal with Acme to avoid losing about 1,600 direct and indirect jobs in the area amid a broader just transition debate for energy workers.

 

We respectfully disagree with the notion that the plant is not economical

Acme’s interest comes as others are looking to exit a coal industry that’s been plagued by costly anti-pollution regulations. Acme’s plan: Buy the plant "at a very low cost," invest in carbon capture technology that will lower emissions, and then sell the captured CO2 to oil companies, said Larry Heller, a principal at the holding group.

By doing this, Acme “believes we can generate an acceptable rate of return,” Heller said in an email.

Meanwhile, San Juan’s majority owner, PNM Resources Inc., offers a distinctly different view, echoing declining coal returns reported by other utilities. A 2022 shutdown will push ratepayers to other energy alternatives now being planned, saving them about $3 to $4 a month on average, PNM has said.

“We could not identify a solution that would make running San Juan Generating Station economical,” said Tom Fallgren, a PNM vice president, in an email.

The potential sale comes as a new clean-energy bill, supported by Governor Lujan Grisham, is working its way through the state legislature. It would require the state to get half of its power from renewable sources by 2030, and 100 percent by 2045, even as other jurisdictions explore small modular reactor strategies to meet future demand. At the same time, the legislation imposes an emissions cap that’s about 60 percent lower than San Juan’s current levels.

In response, Acme is planning to spend $400 million to $800 million to retrofit the facility with carbon capture and sequestration technology that would collect carbon dioxide before it’s released into the atmosphere, Heller said. That would put the facility into compliance with the pending legislation and, at the same time, help generate revenue for the plant.

The company estimates the system would cut emissions by as much as 90 percent, and the captured gas could be sold to oil companies, which uses it to enhance well recovery. The bottom line, according to Heller: “A winning financial formula.”

It’s a tricky formula at best. Carbon-capture technology has been controversial, even as new coal plant openings remain rare, expensive to install and unproven at scale. Additionally, to make it work at the San Juan plant, the company would need to figure out how to deliver the CO2 to customers since the nearest pipeline is about 20 miles (32 kilometers) away.

 

Reducing costs

Acme is also evaluating ways to reduce costs at San Juan, Heller said, including approaches seen at operators extending the life of coal plants under regulatory scrutiny, such as negotiating a cheaper coal-supply contract and qualifying for subsidies.

Farmington’s stake in the plant is less than 10 percent. But under terms of the partnership, the city — population 45,000 — can assume full control of San Juan should the other partners decide to pull out, mirroring policy debates over saving struggling nuclear plants in other regions. That’s given Farmington the legal authority to pursue the plant’s sale to Acme.

 

At the end of the day, nobody wants the energy

“We respectfully disagree with the notion that the plant is not economical,” Farmington Mayor Nate Duckett said by email. Ducket said he’s in better position than the other owners to assess San Juan’s importance “because we sit at Ground Zero.”

The city’s economy would benefit from keeping open both the plant and a nearby coal mine that feeds it, according to Duckett, with operations that contribute about $170 million annually to the local area.

While the loss of those jobs would be painful to some, Camilla Feibelman, a Sierra Club chapter director, is hard pressed to see a business case for keeping San Juan open, pointing to sector closures such as the Three Mile Island shutdown as evidence of shifting economics. The plant isn’t economical now, and would almost certainly be less so after investing the capital to add carbon-capture systems.

 

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Ontario utilities team up to warn customers about ongoing scams

Ontario Utility Scam Alert: protect against phishing, spoofed calls, texts, and emails, disconnection threats, and demands for prepaid cards or bitcoin. Tips from Alectra, Elexicon, Hydro One, Hydro Ottawa, and Toronto Hydro.

 

Key Points

A joint warning by Ontario utilities on tactics and steps to prevent customer fraud, phishing, and spoofed contacts.

✅ Verify bills; call your utility using the official number.

✅ Ignore links; do not accept unexpected e-transfers.

✅ Never pay with gift cards, prepaid cards, or bitcoin.

 

Five of Ontario's largest utilities have joined forces to raise awareness about ongoing sophisticated utility scams targeting utility customers.

Some common tactics fraudsters use to target Ontarians include impersonation of the local utility or its employees; sending threatening phone calls, texts and emails; or showing up in-person at a customer's home or business and requesting personal information or payment. The requests can include pressure for immediate payment, threats to disconnect service the same day, and demands to purchase prepaid debit cards, gift cards or bitcoin.

The utilities are encouraging all customers to protect themselves and are providing them with the following tips to stay safe, noting that customers want more choice and flexibility in how they manage accounts:

  • Never make a payment for a charge that isn't listed on your most recent bill
  • Ignore text messages or emails with suspicious links promising refunds
  • Don't call the number provided to you — instead, call your utility directly to check the status of your account
  • Only provide personal information or details about your account when you have initiated the contact with the utility representative  
  • Utility companies will never threaten immediate disconnection for non-payment, and many offer relief programs during hardship
  • If you feel threatened in any way, contact your local police
  • Steps you can take to protect yourself against fraud:

Take five minutes to ask additional questions and listen to your instincts — if something doesn't seem right, ask someone about it, and look for news of official utility support efforts that confirm legitimate outreach

  • Immediately hang up on suspicious phone calls
  • Don't click any links in emails/text messages asking you to accept electronic transfers
  • Avoid sharing personal information
  • Always compare bills to previous ones, including the dollar amount and account number, and stay informed about any official rate changes from your utility
  • Reporting suspicious behaviour, including suspected electricity theft, helps authorities

If you believe you may be a victim of fraud, please contact the Canadian Anti-Fraud Centre at 1-888-495-8501 and your local utility.

Customers can find more information at:

  • Alectra Utilities
  • Elexicon Energy
  • Hydro One
  • Hydro Ottawa 
  • Toronto Hydro

 

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Electricity Payouts on Biggest U.S. Grid Fall 64 Per Cent in Auction

PJM Capacity Auction Price Drop signals PJM Interconnection capacity market shifts, with $50/MW-day clearing, higher renewables and nuclear participation, declining coal, natural gas pressure, and zone impacts in ComEd and EMAAC, amid 21% reserve margins.

 

Key Points

A decline to $50 per MW-day in PJM capacity prices, shifting resource mix, zonal rates, and reserve margins.

✅ Clearing price fell to $50/MW-day from $140 in 2018

✅ Renewables and nuclear up; coal units down across PJM

✅ Zonal prices: ComEd $68.96, EMAAC $97.86; 21% reserves

 

Power-plant owners serving the biggest U.S. grid will be paid 64% less next year for being on standby to keep the lights on from New Jersey to Illinois.

Suppliers to PJM Interconnection LLC’s grid, which serves more than 65 million people, will get $50 a megawatt-day to provide capacity for the the year starting June 2022, according to the results of an auction released Wednesday. That’s down sharply from $140 in the previous auction, held in 2018. Analysts had expected the price would fall to about $85.

“Renewables, nuclear and new natural gas generators saw the greatest increases in cleared capacity, while coal units saw the largest decrease,” PJM said in a statement.

The PJM auction is the single most important event for power generators across the eastern U.S., including Calpine Corp., NRG Energy Inc. and Exelon Corp., because it dictates a big chunk of their future revenue. It also plays a pivotal role in shaping the region’s electricity mix, determining how much the region is willing to stick with coal and natural gas plants or replace them with wind and solar even as the aging grid complicates progress nationwide.

The results showed that the capacity price for the Chicago-area zone, known as ComEd, was $68.96 compared with $195.55 in the last auction. The price for the Pennsylvania and New Jersey zone, known as EMAAC, fell to $97.86 percent, from $165.73. All told, 144,477 megawatts cleared, representing a reserve margin of 21%.

Exelon shares fell 0.4% after the results were released. Vistra fell 1.5%. NRG was unchanged.

Blackouts triggered by extreme weather in Texas and California over the last year have reignited a debate over whether other regions should institute capacity systems similar to the one used by PJM, and whether to adopt measures like emergency fuel stock programs in New England as well. The market, which pays generators to be on standby in case extra power is needed, has long been a source of controversy. While it makes the grid more reliable, the system drives up costs for consumers. In the area around Chicago, for instance, these charges total more than $1.7 billion per year, accounting for 20% of customer bills, according to the Illinois Clean Jobs Coalition.

In the 2018 auction, PJM contracted supplies that were about 22% in excess of the peak demand projection at the time. This year, the grid is projected to start summer with a reserve margin of about 26%, as COVID-19 demand shifts persist, according to the market monitor -- far higher than the 16% most engineers say is needed to prevent major outages.

“This certainly doesn’t seem fair to ratepayers,” said Ari Peskoe, director of Harvard Law School’s Electricity Law Initiative.

Fossil-Fuel Advantage
Heading into the auction, analysts expected coal and gas plants to have the advantage. Nuclear reactors and renewables, they said, were poised to struggle amid coal and nuclear disruptions nationwide.

That’s because this is the first PJM auction run under a major pricing change imposed by federal regulators during the Trump administration. The new structure creates a price floor for some bidders, effectively hobbling nuclear and renewables that receive state subsidies while making it easier for fossil fuels to compete.

Those rules triggered contentious wrangling between power providers, PJM and federal regulators, delaying the auction for two years. The new system, however, may be short lived. The Biden administration is moving to overhaul the rules in time for the next auction in December.

Also See: Biden Climate Goals to Take Backseat in Biggest U.S. Power Grid

Dominion Energy Inc., one of the biggest U.S. utility owners, pulled out of the market over the rules. The Virginia-based company, which has a goal to have net-zero carbon emissions by 2050, said the new PJM format will “make renewables more expensive” than delivering clean energy through alternative markets.

Illinois, New Jersey and Maryland have also threatened to leave the capacity market unless the new price floor is eliminated, and Connecticut is leading a market overhaul in New England as well. PJM has already launched a process to do it.

PJM is already one of the most fossil-fuel intensive grids, with 60% of its electricity coming from coal and gas. Power plants that bid into the auction rely on it for the bulk of their revenue. That means plants that win contracts have an incentive to continue operating for as long as they can, even amid a supply-chain crisis this summer.

 

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National Grid and SSE to use electrical transformers to heat homes

Grid Transformer Waste Heat Recovery turns substations into neighborhood boilers, supplying district heating via heat networks, helping National Grid and SSE cut emissions, boost energy efficiency, and advance low carbon, net zero decarbonization.

 

Key Points

Grid Transformer Waste Heat Recovery captures substation heat for district heating, cutting emissions and gas use.

✅ Captures waste heat from National Grid transformers

✅ Feeds SSE district heat networks for nearby homes

✅ Cuts carbon, improves efficiency, aligns with net zero

 

Thousands of homes could soon be warmed by the heat from giant electricity grid transformers for the first time as part of new plans to harness “waste heat” and cut carbon emissions from home heating.

Trials are due to begin on how to capture the heat generated by transmission network transformers, owned by National Grid, to provide home heating for households connected to district heating networks operated by SSE.

Currently, hot air is vented from the giant substations to help cool the transformers that help to control the electricity running through National Grid’s high-voltage transmission lines.

However, if the trial succeeds, about 1,300 National Grid substations could soon act as neighbourhood “boilers”, piping water heated by the substations into nearby heating networks, and on into the thousands of homes that use SSE’s services.

“Electric power transformers generate huge amounts of heat as a byproduct when electricity flows through them. At the moment, this heat is just vented directly into the atmosphere and wasted,” said Nathan Sanders, the managing director of SSE Energy Solutions.

“This groundbreaking project aims to capture that waste heat and effectively turn transformers into community ‘boilers’ that serve local heat networks with a low- or even zero-carbon alternative to fossil-fuel-powered heat sources such as gas boilers, a shift akin to a gas-for-electricity swap in heating markets,” Sanders added.

Alexander Yanushkevich, National Grid’s innovation manager, said the scheme was “essential to achieve net zero” and a “great example of how, taking a whole-system approach, including power-to-gas in Europe precedents, the UK can lead the way in helping accelerate decarbonisation”.

The energy companies believe the scheme could initially reduce heat network carbon emissions by more than 40% compared with fossil gas systems. Once the UK’s electricity system is zero carbon, and with recent milestones where wind was the main source of UK electricity on the grid, the heating solution could play a big role in helping the UK meet its climate targets.

The first trials have begun at National Grid’s specially designed testing site at Deeside in Wales to establish how the waste heat could be used in district heating networks. Once complete, the intellectual property will be shared with smaller regional electricity network owners, which may choose to roll out schemes in their areas.

Tim O’Reilly, the head of strategy at National Grid, said: “We have 1,300 transmission transformers, but there’s no reason why you couldn’t apply this technology to smaller electricity network transformers, too, echoing moves to use more electricity for heat in colder regions.”

Once the trials are complete, National Grid and SSE will have a better idea of how many homes could be warmed using the heat generated by electricity network substations, O’Reilly said, and how the heat can be used in ways that complement virtual power plants for grid resilience.

“The heavier the [electricity] load, which typically reaches a peak at around teatime, the more heat energy the transformer will be able to produce, aligning with times when wind leads the power mix nationally. So it fits quite nicely to when people require heat in the evenings,” he added.

Other projects designed to capture waste heat to use in district heating schemes include trapping the heat generated on the Northern line of London’s tube network to warm homes in Islington, and harnessing the geothermal heat from disused mines for district heating networks in Durham.

Only between 2% and 3% of the UK is connected to a district heating network, but more networks are expected to emerge in the years ahead as the UK tries to reduce the carbon emissions from homes, alongside its nuclear power plans in the wider energy strategy.

 

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