Going tankless to save energy

By Toronto Star


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Don Drury is on a mission to reduce the amount of energy Canadians use to heat water in their homes, starting with his own neighbours. His methods may be primitive, but they're proving quite effective.

The 78-year-old Torontonian has whipped up a hand-written flyer and has been distributing it in mailboxes throughout his neighbourhood.

"Do you want to help the environment and save money?" the flyer asks. "It is possible, and I can prove it!"

Drury purchased a tankless hot water heater about a year ago. Unlike conventional hot water tanks, which store a large volume of water (between 40 to 60 gallons) and use natural gas or electricity to keep it constantly heated, a tankless system doesn't store water. Instead, it rapidly heats the water as it flows, on demand, when you need it.

We work, we travel, we shop and go to school, and all this time the conventional hot water tank in most of our homes is working, turning on and off, keeping the water in the tank heated even when nobody is around to use it. A huge amount of energy is being used in the process, for no good reason.

Even when we are at home, we're not always using the hot water. "But you are paying for that," Drury's flyer emphasizes.

There are major advantages to using tankless systems. For one, they take up far less space and zero floor space. They also last twice as long – up to 20 years. And while more expensive than a tank system, the added cost of a tankless unit is recovered through energy savings over its operational life.

Home Depot carries a number of Bosch tankless systems that cost anywhere from $628 to $1,248 when purchased online. Price depends on the volume of hot water flow you require.

The smaller systems handle 3.5 gallons per minute, usually enough to handle one shower or some other water application, like a dishwasher, at a time. The larger systems handle nearly double the volume, meaning constant hot water even during two simultaneous showers.

Energy savings depend on how much hot water you use in a given day. That is, the more you use, the more you save. I've seen companies promote energy savings ranging from 20 to 50 per cent. If we assume 25 per cent, and consider that the average home in Ontario spends about $400 on water heating, we see savings in the order of $100 a year.

But tankless systems aren't for everybody. Installation isn't a simple task. Complaints about water pressure and temperature do occasionally surface, and there's a contingent of folks out there who challenge the true cost-savings being claimed by manufacturers. The savings for electric-powered systems are also considered lower.

What's required is a case-by-case analysis. Homeowners need to assess their own hot water needs and patterns of use to get a true sense of the benefits.

So far, three of Drury's neighbours have dropped by his house to see the system, and one even went ahead and bought one. Drury, in a letter sent to Clean Break, says he's eager to see the technology go mainstream.

"I am hoping some federal or provincial politician will mandate that all new homes constructed must have one of these installed," he writes. "Think of the savings of greenhouse gases, natural gas, and money for the homeowner multiplied by tens of thousands countrywide."

The economics are better when you consider that the province and federal government each offer a $200 grant – or $400 in total – for the purchase and installation of a tankless hot water system.

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This kite could harness more of the world's wind energy

Autonomous Energy Kites harness offshore wind on floating platforms, using carbon fiber wings, tethers, and rotors to generate grid electricity; an airborne wind energy solution backed by Alphabet's Makani to cut turbine costs.

 

Key Points

Autonomous Energy Kites are tethered craft that capture winds with rotors, generating grid power from floating platforms.

✅ Flies circles on tethers; rotors drive generators to feed the grid.

✅ Operates over deep-sea winds where fixed turbines are impractical.

✅ Lighter, less visual impact, and lower installation costs offshore.

 

One company's self-flying energy kite may be the answer to increasing wind power around the world, alongside emerging wave power solutions as well.

California-based Makani -- which is owned by Google's parent company, Alphabet -- is using power from the strongest winds found out in the middle of the ocean, where the offshore wind sector has huge potential, typically in spots where it's a challenge to install traditional wind turbines. Makani hopes to create electricity to power communities across the world.

Despite a growing number of wind farms in the United States and the potential of this energy source, lessons from the U.K. underscore how to scale, yet only 6% of the world's electricity comes from wind due to the the difficulty of setting up and maintaining turbines, according to the World Wind Energy Association.

When the company's co-founders, who were fond of kiteboarding, realized deep-sea winds were largely untapped, they sought to make that energy more accessible. So they built an autonomous kite, which looks like an airplane tethered to a base, to install on a floating platform in water, as part of broader efforts to harness oceans and rivers for power across regions. Tests are currently underway off the coast of Norway.

"There are many areas around the world that really don't have a good resource for renewable power but do have offshore wind resources," Makani CEO Fort Felker told Rachel Crane, CNN's innovation correspondent. "Our lightweight kites create the possibility that we could tap that resource very economically and bring renewable power to hundreds of millions of people."

This technology is more cost-efficient than a traditional wind turbine, which is a lot more labor intensive and would require lots of machinery and installation.

The lightweight kite, which is made of carbon fiber, has an 85-foot wingspan. The kite launches from a base station and is constrained by a 1,400-foot tether as it flies autonomously in circles with guidance from computers. Crosswinds spin the kite's eight rotors to move a generator that produces electricity that's sent back to the grid through the tether.

The kites are still in the prototype phase and aren't flown constantly right now as researchers continue to develop the technology. But Makani hopes the kites will one day fly 24/7 all year round. When the wind is down, the kite will return to the platform and automatically pick back up when it resumes.

Chief engineer Dr. Paula Echeverri said the computer system is key for understanding the state of the kite in real time, from collecting data about how fast it's moving to charting its trajectory.

Echeverri said tests have been helpful in establishing what some of the challenges of the system are, and the team has made adjustments to get it ready for commercial use. Earlier this year, the team successfully completed a first round of autonomous flights.

Working in deeper water provides an additional benefit over traditional wind turbines, according to Felker. By being farther offshore, the technology is less visible from land, and the growth of offshore wind in the U.K. shows how coastal communities can adapt. Wind turbines can be obtrusive and impact natural life in the surrounding area. These kites may be more attractive to areas that wish to preserve their scenic coastlines and views.

It's also desirable for regions that face constraints related to installing conventional turbines -- such as island nations, where World Bank support is helping developing countries accelerate wind adoption, which have extremely high prices for electricity because they have to import expensive fossil fuels that they then burn to generate electricity.

Makani isn't alone in trying to bring novelty to wind energy. Several others companies such as Altaeros Energies and Vortex Bladeless are experimenting with kites of their own or other types of wind-capture methods, such as underwater kites that generate electricity, a huge oscillating pole that generates energy and a blimp tethered to the ground that gathers winds at higher altitudes.

 

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N.L., Ottawa agree to shield ratepayers from Muskrat Falls cost overruns

Muskrat Falls Financing Restructuring redirects megadam benefits to ratepayers, stabilizes electricity rates, and overhauls federal provincial loan guarantees for the hydro project, addressing cost overruns flagged by the Public Utilities Board in Newfoundland and Labrador.

 

Key Points

A revised funding model shifting benefits to ratepayers to curb rate hikes linked to Muskrat Falls cost overruns.

✅ Shields ratepayers from megadam cost overruns

✅ Revises federal provincial loan guarantees

✅ Targets stable electricity rates by 2021 and beyond

 

Ottawa and Newfoundland and Labrador say they will rewrite the financial structure of the Muskrat Falls hydro project to shield ratepayers from paying for the megadam's cost overruns.

Federal Natural Resources Minister Seamus O'Regan and Premier Dwight Ball announced Monday that their two governments would scrap the financial structure agreed upon in past federal-provincial loan agreements, moving to a model that redirects benefits, such as a lump sum credit, to ratepayers.

Both politicians called the announcement, which was light on dollar figures, a major milestone in easing residents' fears that electricity rates will spike sharply, as seen with Nova Scotia's debated 14% hike, when the over-budget dam comes fully online next year.
"We are in a far better place today thanks to this comprehensive plan," Ball said.

Ball has said the issue of electricity rates is a top priority for his government, and he has pledged to keep rates near existing levels, but rate mitigation talks with Ottawa have dragged on since April.

A report by the province's Public Utilities Board released Friday forecast an "unprecedented" 75 per cent increase in average domestic rates for island residents in 2021, while Nova Scotia's regulator approved a 14% hike, and reported concerns from industrial customers about their ability to remain competitive.

Costs of the Muskrat Falls megadam on Labrador's Lower Churchill River have ballooned to more than $12.7 billion since the project was approved in 2012, according to the latest estimate of Crown corporation Nalcor Energy.

The dam is set to produce more power than the province can sell. Its existing financial structure would have left electricity ratepayers paying for Muskrat Falls to make up the difference starting in 2021, an issue both governments said Monday has been resolved with the relaunch of financing talks.

"Essentially, you won't pay this on your monthly light bills," Ball said.

But details of how the project will meet financing requirements in coming decades to make up the gap in funds are still to be worked out.

Both Ball and O'Regan criticized previous governments for sanctioning the poorly planned development and again pledged their commitment to easing the burden on residents.

"We promised we would be there to help, and we will be," O'Regan said before announcing a "relaunch" of negotiations around the project's financial structure.

He did not say how much the new setup might cost the federal government, despite earlier federal funding commitments, stressing that the new focus will be on the project's long-term sustainability. "There's no single piece of policy ... that can resolve such a large and complicated mess," O'Regan said.

The two governments also said they will work towards electrifying federal buildings to reduce an anticipated power surplus in the province.

In the short term, the federal government said it would allow for "flexibility" in upcoming cash requirements related to debt servicing, allowing deferral of payments if necessary.

Ball said that flexibility was built in to ensure the plan would still be applicable if costs continue to rise before Muskrat Falls is commissioned.

Political opponents criticized Monday's plan as lacking detail.

"What I heard talked about was an agreement that in the future, there's going to be an agreement," said Progressive Conservative Leader Ches Crosbie. "This was an occasion to reassure people that there's a plan in place to make life here affordable, and I didn't see that happen today."

Others addressed the lingering questions about the project's final cost.

Nalcor's latest financial update has remained unchanged since 2017, though the Muskrat Falls project has seen additional delays related to staffing and software issues.

Dennis Browne, the province's consumer advocate, said the switch to a cost of service model is a significant move that will benefit ratepayers, but he said it's impossible to truly restructure the project while it's a work in progress. "We need to know what the figures are, and we don't have them," he said.

 

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Calgary's electricity use soars in frigid February, Enmax says

Calgary Winter Energy Usage Surge highlights soaring electricity demand, added megawatt-hours, and grid reliability challenges driven by extreme cold, heating loads, and climate change, with summer air conditioning also shifting seasonal peaks.

 

Key Points

A spike in Calgary's power use from extreme cold, adding 22k MWh and testing reliability as heating demand rises.

✅ +22,000 MWh vs Feb 2018 amid fourth-coldest February

✅ Heating loads spike; summer A/C now drives peak demand

✅ Grid reliability monitored; more solar and green resources ahead

 

February was so cold in Calgary that the city used enough extra energy to power 3,400 homes for a whole year, echoing record-breaking demand in B.C. in 2021 during severe cold.

Enmax Power Corporation, the primary electricity utility in the city, says the city 's energy consumption was up 22,000 megawatt hours last month compared with Februray 2018.

"We've seen through this cold period our system has held up very well. It's been very reliable," Enmax vice-president Andre van Dijk told the Calgary Eyeopener on Friday. "You know, in the absence of a windstorm combined with cold temperatures and that sort of thing, the system has actually held up pretty well."

The past month was the fourth coldest in Calgary's history, and similar conditions have pushed all-time high demand in B.C. in recent years across the West. The average temperature for last month was –18.1 C. The long-term average for February is –5.4 C.

 

Watching use, predicting issues

The electricity company monitors demand and load on a daily basis, always trying to predict issues before they happen, van Dijk said, and utilities have introduced winter payment plans to help customers manage bills during prolonged cold.

One of the issues they're watching is climate change, and how extreme temperatures and weather affect both the grid's reliability, as seen when Quebec shattered consumption records during cold snaps, and the public's energy use.

The colder it gets, the higher you turn up the heat. The hotter it is, the more you use air conditioning.

He also noted that using fuels then contributes to climate change, creating a cycle.

​"We are seeing variations in temperature and we've seen large weather events across the continent, across the world, in fact, that impact electrical systems, whether that's flooding, as we've experienced here, or high winds, tornadoes," van Dijk said.

"Climate change and changing weather patterns have definitely had had an impact on us as an electrical industry."

In 2012, he said, Calgary switched from using the most power during winter to using the most during summer, in large part due to air conditioning, he said.

"Temperature is a strong influencer of energy consumption and of our demand," van Dijk said.

Christmas tree lights have also become primarily LED, van Dijk said, which cuts down on a big energy draw in the winter.

He said he expects more solar and other green resources will be added into the electrical system in the future to mitigate how much the increasingly levels of energy use impact climate change, and to help moderate electricity costs in Alberta over time.

 

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Texas utility companies waiving fees; city has yet to act

Texas Utility COVID-19 Relief suspends disconnections, waives late fees, extends payment plans, and supports broadband access as electric, gas, and internet providers help customers during the statewide emergency with speed upgrades and student WiFi initiatives.

 

Key Points

Texas utilities pause disconnections, waive fees, expand access, and offer flexible payment plans during COVID-19.

✅ Disconnections and late fees suspended by gas, power, internet.

✅ Payment plans and deferred balances after emergency.

✅ Bandwidth caps lifted; student WiFi access for remote learning.

 

In response to the COVID-19 pandemic, Texas utility companies have taken unprecedented steps to keep customers' lights on, gas flowing, and online connections stable -- even if they can't pay, amid concerns over pandemic electricity shutoffs nationwide.

Meantime, Palestine City Council members plan to discuss hardship measures Monday, as some states such as New Jersey and New York implement moratoriums on shut-offs, but have no plans yet to ease the burden of paying two other essential services during the statewide emergency -- trash collection and water. Those services are billed through the city.

For many residents, money will be tight after the statewide emergency declaration. Businesses are cutting back or closing. Workers are staying home to avoid the coronavirus.

"We are putting our customers first," Larry Ball, spokesman for Atmos Energy, a Dallas-based natural gas company, told the Herald-Press Friday. "The safety of all of our customers has always been our first priority."

While the declared emergency remains in effect, Atmos has suspended all late fees and customer disconnections, a step similar to PG&E's shutoff moratorium in California.

"Atmos Energy's commitment to safety, paired with our culture, have led us during unique times," Kevin Akers, Atmos President and CEO said. "This will be no different."

Internet Service Providers SuddenLink and Centurylink have similarly suspended all disconnections and late fees. Additionally, Centurylink, a global company serving 36 states, has promised to scrap bandwidth limits, while ensuring the highest speeds possible.

SuddenLink, a division of Altice Business, is also partnering with school districts in their service area to offer its Student WiFi product free for 60 days. That will allow students who have school-issued devices, but no dedicated home Internet access, the ability to use the Optimum WiFi Hot Spot Network to access their school's network and resources.

Electric companies such as TXU and Houston-based Gexa Energy also are working to keep customers safe and connected, and Entergy's relief fund highlights additional support for customers.

During the declared emergency, Gexa is waiving all disconnection and reconnection fees, as well as late fees, a policy focus that later intersected with debates over a proposed electricity market bailout in Texas. Payment plans will be set up for customers, after the crisis ends, Gexa Energy officials said.

"Everyone needs their power on," a Gexa spokesman said. "That is our number one priority."

TXU, based in Irving, is waiving late fees, extending payment due dates with no down-payment required, and deferring customer balances over multiple installments, while some retailers like Griddy underscored the risks of variable-rate plans.

If customers still can't pay, TXU officials said, the company will keep their lights on, a commitment underscored after the Texas winter storm outages exposed vulnerabilities. Customers in need should call 800-242-9113.

"The coronavirus is causing uncertainty and many hardships," Scott Hudson, president of TXU energy, said. "We are committed to serving our communities."

 

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Georgia Power warns customers of scams during pandemic

Georgia Power Scam Alert cautions customers about phone scams, phishing, and fraud during COVID-19, urging identity verification, refusal of prepaid card payments, use of Authorized Payment Locations, and customer service contact to avoid disconnection threats.

 

Key Points

A warning initiative on fraud, phone scams, and safe payments to protect Georgia Power customers during COVID-19.

✅ Never pay by phone with prepaid cards or credit card numbers.

✅ Verify employee ID, badge, and marked vehicle before opening.

✅ Call 888-660-5890 or use Authorized Payment Locations only.

 

With continued reports of attempted scams and fraud, including holiday scam warnings in other regions, by criminals posing as Georgia Power employees during the COVID-19 pandemic, the company reminds customers to be aware and follow simple tips to avoid becoming a victim.

Customers should beware of phone calls demanding payment via phone to avoid pandemic-related electricity shut-offs and penalties.

In other regions, Texas utilities waived fees to support customers during the pandemic.

Last month, Georgia Power and the Georgia Public Service Commission extended the suspension of disconnections due to the impact of the pandemic on customers. In addition, the company will never ask for a credit card or pre-paid debit card number over the phone. The company will also never send employees into the field to collect payment in person or ask a customer to pay anywhere other than an Authorized Payment Location.

Similarly, Gulf Power offered a one-time bill decrease to ease customer costs.

If an account becomes past due, Georgia Power will contact the customer via a pre-recorded message to the primary account telephone number or by letter requesting that the customer call to discuss the account, including available June bill reductions where applicable.

If a customer receives a suspicious call from someone claiming to be from Georgia Power and demanding payment to avoid disconnection despite utility moratoriums on shutoffs, the customer should hang up and contact the company's customer service line at 888-660-5890.

If an employee needs to visit a customer's home or business for a service-related issue, they will be in uniform and present a badge with a photo, their name and the company's name and logo. They will also be in a vehicle marked with the company's logo.

During the pandemic, visiting a customer's home or business will be even less likely, so identity verification should be completed before opening the door to anyone.

Georgia Power continues to work with law enforcement agencies throughout the state to identify and prosecute criminals who pose as Georgia Power employees to defraud customers.

 

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NB Power signs three deals to bring more Quebec electricity into the province

NB Power and Hydro-Québec Electricity Agreements expand clean hydroelectric exports, support Mactaquac dam refurbishment, add grid interconnections, and advance decarbonization, climate goals, reliability, and transmission capacity across Atlantic Canada and U.S. markets through 2040.

 

Key Points

Deals for hydro exports, Mactaquac upgrades, and new interconnections to improve reliability and cut emissions.

✅ 47 TWh to NB by 2040 over existing transmission lines

✅ HQ expertise to address Mactaquac concrete swelling

✅ Talks on new interconnections for Atlantic and U.S. exports

 

NB Power and Hydro-Quebec have signed three deals that will see Quebec sell more electricity to New Brunswick and provide help with the refurbishment of the Mactaquac hydroelectric generating station.

Under the first agreement, Hydro-Quebec will export 47 terawatt hours of electricity to New Brunswick between now and 2040 over existing power lines — expanding on an agreement in place since 2012 and on related regional agreements such as the Churchill Falls deal in Newfoundland and Labrador.

The second deal will see Hydro-Quebec share expertise for part of the refurbishment of the Mactaquac dam to extend the useful life of the generating station until at least 2068, when the 670 megawatt facility on the St. John River will be 100 years old.

Since the 1980s, concrete portions of the facility have been affected by a chemical reaction that causes the concrete to swell and crack.

Hydro-Quebec has been dealing with the same problem, and has developed expertise in addressing the issue.

“This is why we have signed a technical collaboration agreement between Hydro-Quebec and us for part of the refurbishment of the Mactaquac generating station,” NB Power president Gaetan Thomas said Friday.

Eric Martel, CEO of Hydro-Quebec, said hydroelectric plants provide long-term clean power that’s important in the fight against climate change as the province has ruled out nuclear power for now.

“We understand how important it is to ensure the long term sustainability of these facilities and we are happy to share the expertise that Hydro-Quebec has acquired over the years,” Martel said.

The refurbishment of the Mactaquac generating station is expected to cost between $2.9 billion and $3.5 billion. Once the work begins, each of the facility’s six generators will have to be taken offline for months at a time, and Thomas said that’s where the increased power from Quebec, supported by Hydro-Quebec's capacity expansion in recent years, will come into use.

He expects the power could cost about $100 million per year but will be much cheaper than other sources.

The third agreement calls for talks to begin for the construction of additional power connections between Quebec and New Brunswick to increase exports to Atlantic Canada and the United States, where transmission constraints have limited incremental deliveries in recent years.

“Building new interconnections and allowing for increased power transfer between our systems could be mutually beneficial, even as historic tensions in Newfoundland and Labrador linger. More than ever, we are looking to the future,” Martel said.

“Partnering will permit us to seize new business opportunities together and pool our effort to support de-carbonization, including Hydro-Quebec's non-fossil strategy that is now underway, and fight against climate change, both here and in our neighbourhood market,” he said. 

 

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