TVA energy audit may open eyes

By Knoxville News Sentinel


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Well, we flipped the green power switch at our house this month - and I'm not talking about TVA's renewable energy program. We turned off our air conditioner.

Here's why. Our 1950s-era home is poorly insulated upstairs, has lots of large single-paned windows and frankly gets a lot of outside air coming in anyway with the constant indoor/outdoor shuffle of my various children.

So, in lieu of energy efficiency improvements that aren't currently in our budget - and thanks to a kick in the seat of the pants by last month's nearly $500 utility bill - we've decided to go without AC. There are exceptions, of course, such as a visit from the in-laws or during some of the most recent hot and sticky nights.

In the process, I have discovered that one's body temperature can indeed adjust to that of nature (although it is best to sit as still as possible and relegate high-intensity cleaning and cooking jobs for morning and late evening hours). And, indeed, the electric fan is a wonderful invention.

TVA's announcement last week of a 20 percent increase in electricity rates provides consumers even more motivation to cut back kilowatts.

So, as several sources have been urging me to do, I took TVA's free online Home Energy Audit, available at www.energydepot.com/energyright.

For the best results, you'll need your utility bill information for the last 12 months. Questions follow regarding square footage, windows, insulation, when the home was built and how many people reside there. The audit also asks about lighting and appliances, hot water systems and peripherals such as TVs, computers and supplemental heating and air conditioning units.

Most helpful was the electricity usage breakdown for our home. To my surprise, heating, not AC, is our primary power-guzzler, by more than $2 to $1. And I learned our gas-powered hot water heater eats up 21 percent of our overall energy usage.

The audit provided suggestions for energy savings, offering numbers for equivalent dollar savings for specific improvements. Insulating our floors and attic, for example, offers the most potential savings, approximately $636 per year, according to the audit.

But the audit also has its shortcomings. Under each category of improvement are blanks for what the installed cost would be, the savings and the payback period for each measure. In my audit, both the cost of installation and the payback improvement were blank, and a link for more information sent me to an empty link.

Even though such estimates would be general, probably the most important information the audit could provide is: Where will I get the most bang for my buck?

As for me, the to-do list now includes insulating the water heater, biting the bullet on blowing more insulation in our attic and checking out the duct work for leaks.

I'll also be keeping my eyes peeled for sales on wool socks and sweaters. Come this winter, we'll be needing some.

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Tories 'taking the heart out of Manitoba Hydro' by promoting subsidiaries, scrapping low-cost pledges: NDP

Manitoba Hydro Privatization Debate centers on subsidiaries, Crown corporation governance, clean energy priorities, and electricity rates, as board terms shift oversight and transparency, sparking concerns about sell-offs and government control.

 

Key Points

A dispute over Hydro's governance, subsidiaries, electricity rates, and clean energy amid fears of partial privatization.

✅ Rewritten terms allow subsidiaries and shift board duties.

✅ Low rates and clean energy mandates softened in guidance.

✅ Govt cites Hydro Act; NDP warns of sell-off risks.

 

The board of Manitoba Hydro is being reminded it can divvy up some of the utility's work to subsidiaries — which the NDP is decrying as a step toward privatization. 

A sentence seemingly granting the board permission to create subsidiaries was included in the board's new terms of reference, which the NDP raised during question period Wednesday. 

The document also eliminated references asking Manitoba Hydro to keep electricity rates low, even as rate hike hearings proceed, and supply power in an environmentally-friendly fashion.

NDP raises spectre of Manitoba Hydro's privatization with new CEO
"They're essentially taking the heart out of Manitoba Hydro," NDP leader Wab Kinew said.

Cheap, clean energy is the basis by which the Crown corporation was formed, even as scaled-back rate increases are planned for next year, he said. 

"That's the whole reason we created this utility in the first place."

Another addition to the board's guidelines include stating the corporation is responsible to the government minister, who must be "proactively informed" when significant issues arise. 

The provincial government, however, says the rewritten terms of reference was the directive of the Manitoba Hydro board and not itself.

CBC's requests to the government for an interview were directed to Manitoba Hydro.

In an interview, Manitoba Hydro spokesperson Scott Powell said the energy utility has undergone no legislative changes, and is still governed by the Manitoba Hydro Act. 

The terms of reference were altered to align the board's duties with the new act overseeing Crown corporations, Powell said.

"Whether you have one or two words different in the terms of reference, the essence of the company hasn't changed."

While the new terms of reference no longer instructs the corporation to ensure an "environmentally responsible supply of energy for Manitobans," it encourages the board to "promote economy and efficiency in all phases of power generation and distribution."

On the cost to ratepayers, the updated directions asks the utility to deliver "safe, reliable energy services at a fair price," a standard clarified by a recent appeal court ruling on First Nations rates, but the board is not specifically instructed with keeping electricity rates low. 

Kinew contends the added sentence on subsidiaries permits Hydro to be broken off and sold for parts, although the terms of reference does not specify if any subsidiary would be wholly owned by Hydro or contracted to a private company.

Powell said Manitoba Hydro has been permitted to create subsidiaries since 1997, and nothing has changed since.

Kinew warned about Hydro's privatization last week when Jay Grewal was announced as Hydro's incoming CEO and president.

She was employed with B.C. Hydro when then-premier Gordon Campbell — hired by the Manitoba government to investigate costly overruns on two electricity megaprojects — sold off segments of the utility.

She then became managing director of Accenture, a global management consulting firm, which acquired several B.C. Hydro departments.

During question period Wednesday, Pallister disputed that Manitoba Hydro is bound to be sold.

He slammed the NDP's "Americanization strategy" of producing more electricity than it is capable of selling, which has saddled ratepayers with billions in debt and prompted proposed 2.5% annual increases in coming years. 

The makeup of the Hydro board has undergone a complete turnover in under a year, a contrast to Ontario's Hydro One shakeup vow during that period.

Nine of the 10 members resigned en masse this March over an impasse with the Pallister government. The lone holdover, Cliff Graydon, was dismissed from his post last month after the Progressive Conservatives removed him from caucus. 

 

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Texas Weighs Electricity Market Reforms To Avoid Blackouts

Texas PUC Electricity Market Reforms aim to boost grid reliability, support ERCOT resilience, pay standby generators, require capacity procurement, and mitigate blackout risk, though analysts warn higher consumer bills and winter reserve margin deficits.

 

Key Points

PUC proposals to bolster ERCOT reliability via standby capacity, capacity procurement, and measures to reduce blackout risk.

✅ Pays generators for standby capacity during grid stress

✅ Requires capacity procurement to meet forecast demand

✅ Could raise consumer bills despite reliability gains

 

The Public Utility Commission of Texas is discussing major reforms to the state’s electricity market with the purpose to avoid a repeat of the power failures and blackouts during the February 2021 winter storm, which led to the death of more than 100 people and left over 11 million residents without electricity for days.

The regulator is discussing at a meeting on Thursday around a dozen proposals to make the grid more stable and reliable in case of emergencies. Proposals include paying power generators that are on standby when the grid needs backup, and requiring companies to pre-emptively buy capacity to meet future demand.

It is not clear yet how many and which of the proposals for electricity market reforms PUC will endorse today, while Texans vote on funding to modernize electricity generation later this year.

Analysts and consumer protection bodies warn that the measures will raise the energy bills for consumers, as some electricity market bailout ideas shift costs to ratepayers as well.

“Customers will be paying for more, but will they be getting more reliability?” Michael Jewell, an attorney with Jewell & Associates PLLC who represents clients at PUC proceedings, told Bloomberg.

“This is going to take us further down a path that’s going to increase cost to consumers, we better be darn sure these are the right choices,” Tim Morstad, Associate State Director, AARP Texas, told FOX 4 NEWS.

Last month, a report by the North American Electric Reliability Corp warned that the Texas power grid remained vulnerable to blackouts in case of a repeat of this year’s February Freeze.

Beyond Texas, electricity blackout risks have been identified across the U.S., underscoring the stakes for grid planning.

According to the 2021-2022 Winter Reliability Assessment report, Texas risks a 37-percent reserve margin deficit in case of a harsh winter, with ERCOT moving to procure capacity to address winter concerns, NERC said.

A reserve margin is the reserve of power generation capacity comparative to demand. The expected reserve margin for Texas for this winter, according to NERC, is 41.9 percent. Yet if another cold spell hits the state, it would affect this spare capacity, pushing the margin deeply into negative territory.

 

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Study: US Power Grid Has More Blackouts Than ENTIRE Developed World

US Power Grid Blackouts highlight aging infrastructure, rising outages, and declining reliability per DOE and NERC data, with weather-driven failures, cyberattack risk, and underinvestment stressing utilities, transmission lines, and modernization efforts.

 

Key Points

US power grid blackouts are outages caused by aging grid assets, severe weather, and cyber threats reducing reliability.

✅ DOE and NERC data show rising outage frequency and duration.

✅ Weather now drives 68-73% of major failures since 2008.

✅ Modernization, hardening, and cybersecurity investments are critical.

 

The United States power grid has more blackouts than any other country in the developed world, according to new data and U.S. blackout warnings that spotlight the country’s aging and unreliable electric system.

The data by the Department of Energy (DOE) and the North American Electric Reliability Corporation (NERC) shows that Americans face more power grid failures lasting at least an hour than residents of other developed nations.

And it’s getting worse.

Going back three decades, the US grid loses power 285 percent more often than it did in 1984, when record keeping began, International Business Times reported. The power outages cost businesses in the United States as much as $150 billion per year, according to the Department of Energy.

Customers in Japan lose power for an average of 4 minutes per year, as compared to customers in the US upper Midwest (92 minutes) and upper Northwest (214), University of Minnesota Professor Massoud Amin told the Times. Amin is director of the Technological Leadership Institute at the school.

#google#

The grid is becoming less dependable each year, he said.

“Each one of these blackouts costs tens of hundreds of millions, up to billions, of dollars in economic losses per event,” Amin said. “… We used to have two to five major weather events per year [that knocked out power], from the ‘50s to the ‘80s. Between 2008 and 2012, major outages caused by weather, reflecting extreme weather trends, increased to 70 to 130 outages per year. Weather used to account for about 17 to 21 percent of all root causes. Now, in the last five years, it’s accounting for 68 to 73 percent of all major outages.”

As previously reported by Off The Grid News, the power grid received a “D+” grade on its power grid report card from the American Society of Civil Engineers (ASCE) in 2013. The power grid grade card rating means the energy infrastructure is in “poor to fair condition and mostly below standard, with many elements approaching the end of their service life.” It further means a “large portion of the system exhibits significant deterioration” with a “strong risk of failure.”

“America relies on an aging electrical grid and pipeline distribution systems, some of which originated in the 1880s,” the 2013 ASCE report read. “Investment in power transmission has increased since 2005, but ongoing permitting issues, weather events, and limited maintenance have contributed to an increasing number of failures and power interruptions.”

As The Times noted, the US power grid as it exists today was built shortly after World War II, with the design dating back to Thomas Edison. While Edison was a genius, he and his contemporaries could not have envisioned all the strains the modern world would place upon the grid and the multitude of tech gadgets many Americans treat as an extension of their body. While the drain on the grid has advanced substantially, the infrastructure itself has not.

There are approximately 5 million miles of electrical transmission lines throughout the United States, and thousands of power generating plants dot the landscape. The electrical grid is managed by a group of 3,300 different utilities and serve about 150 million customers, The Times said. The entire power grid system is currently valued at $876 billion.

Many believe the grid is vulnerable to an attack on substations and other threats.

Former Department of Homeland Security Secretary Janet Napolitano once said that a power grid cyber attack is a matter of “when” not “if,” as Russians hacked utilities incidents have shown.

 

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New England Is Burning the Most Oil for Electricity Since 2018

New England oil-fired generation surges as ISO New England manages a cold snap, dual-fuel switching, and a natural gas price spike, highlighting winter reliability challenges, LNG and pipeline limits, and rising CO2 emissions.

 

Key Points

Reliance on oil-burning power plants during winter demand spikes when natural gas is costly or constrained.

✅ Driven by dual-fuel switching amid high natural gas prices

✅ ISO-NE winter reliability rules encourage oil stockpiles

✅ Raises CO2 emissions despite coal retirements and renewables growth

 

New England is relying on oil-fired generators for the most electricity since 2018 as a frigid blast boosts demand for power and natural gas prices soar across markets. 

Oil generators were producing more than 4,200 megawatts early Thursday, accounting for about a quarter of the grid’s power supply, according to ISO New England. That was the most since Jan. 6, 2018, when oil plants produced as much as 6.4 gigawatts, or 32% of the grid’s output, said Wood Mackenzie analyst Margaret Cashman.  

Oil is typically used only when demand spikes, because of higher costs and emissions concerns. Consumption has been consistently high over the past three weeks as some generators switch from gas, which has surged in price in recent months. New England generators are producing power from oil at an average rate of almost 1.8 gigawatts so far this month, the highest for January in at least five years. 

Oil’s share declined to 16% Friday morning ahead of an expected snowstorm, which was “a surprise,” Cashman said. 

“It makes me wonder if some of those generators are aiming to reserve their fuel for this weekend,” she said.

During the recent cold snap, more than a tenth of the electricity generated in New England has been produced by power plants that haven’t happened for at least 15 years.

Burning oil for electricity was standard practice throughout the region for decades. It was once our most common fuel for power and as recently as 2000, fully 19% of the six-state region’s electricity came from burning oil, according to ISO-New England, more than any other source except nuclear power at the time.

Since then, however, natural gas has gotten so cheap that most oil-fired plants have been shut or converted to burn gas, to the point that just 1% of New England’s electricity came from oil in 2018, whereas about half our power came from natural gas generation regionally during that period. This is good because natural gas produces less pollution, both particulates and greenhouse gasses, although exactly how much less is a matter of debate.

But as you probably know, there’s a problem: Natural gas is also used for heating, which gets first dibs. Prolonged cold snaps require so much gas to keep us warm, a challenge echoed in Ontario’s electricity system as supply tightens, that there might not be enough for power plants – at least, not at prices they’re willing to pay.

After we came close to rolling brownouts during the polar vortex in the 2017-18 winter because gas-fired power plants cut back so much, ISO-NE, which has oversight of the power grid, established “winter reliability” rules. The most important change was to pay power plants to become dual-fuel, meaning they can switch quickly between natural gas and oil, and to stockpile oil for winter cold snaps.

We’re seeing that practice in action right now, as many dual-fuel plants have switched away from gas to oil, just as was intended.

That switch is part of the reason EPA says the region’s carbon emissions have gone up in the pandemic, from 22 million tons of CO2 in 2019 to 24 million tons in 2021. That reverses a long trend caused partly by closing of coal plants and partly by growing solar and offshore wind capacity: New England power generation produced 36 million tons of CO2 a decade ago.

So if we admit that a return to oil burning is bad, and it is, what can we do in future winters? There are many possibilities, including tapping more clean imports such as Canadian hydropower to diversify supply.

The most obvious solution is to import more natural gas, especially from fracked fields in New York state and Pennsylvania. But efforts to build pipelines to do that have been shot down a couple of times and seem unlikely to go forward and importing more gas via ocean tanker in the form of liquefied natural gas (LNG) is also an option, but hits limits in terms of port facilities.

Aside from NIMBY concerns, the problem with building pipelines or ports to import more gas is that pipelines and ports are very expensive. Once they’re built they create a financial incentive to keep using natural gas for decades to justify the expense, similar to moves such as Ontario’s new gas plants that lock in generation. That makes it much harder for New England to decarbonize and potentially leaves ratepayers on the hook for a boatload of stranded costs.

 

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Sustainable Marine now delivering electricity to Nova Scotia grid from tidal energy

Sustainable Marine tidal energy delivers in-stream power to Nova Scotia's grid from Grand Passage, proving low-impact, renewable generation and advancing a floating tidal array at FORCE and Minas Passage in the Bay of Fundy.

 

Key Points

The first in-stream tidal project supplying clean power to Nova Scotia's grid, proven at Grand Passage.

✅ First to deliver in-stream tidal power to Canada's grid

✅ Demonstration at Grand Passage informs FORCE deployments

✅ Low-impact design and environmental monitoring validated

 

Sustainable Marine has officially powered up its tidal energy operation in Canada and is delivering clean electricity to the power system in Nova Scotia, on the country’s Atlantic coast, as the province moves to increase wind and solar projects in the years ahead. The company’s system in Grand Passage is the first to deliver in-stream tidal power to the grid in Canada, following provincial approval to harness Bay of Fundy tides that is spurring further development.

The system start-up is the culmination of more than a decade of research, development and testing, including lessons from Scottish tidal projects in recent years and a powerful tidal turbine feeding onshore grids, managing the technical challenges associated with operating in highly energetic environments and proving the ultra-low environmental impact of the tidal technology.

Sustainable Marine is striving to deliver the world’s first floating tidal array at FORCE (Fundy Ocean Research Centre for Energy). This project will be delivered in phases, drawing upon the knowledge gained and lessons learned in Grand Passage, and insights from offshore wind pilots like France’s first offshore wind turbine in Europe. In the coming months the company will continue to operate the platform at its demonstration site at Grand Passage, gradually building up power production, while New York and New England clean energy demand continues to rise, to further prove the technology and environmental monitoring systems, before commencing deployments in the Minas Passage – renowned as the Everest of tidal energy.

The Bay of Fundy’s huge tidal energy resource contains more than four times the combined flow of every freshwater river in the world, with the potential to generate approximately 2,500 MW of green energy, underscoring why independent electricity planning will be important for integrating marine renewables.

 

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France and Germany arm wrestle over EU electricity reform

EU Electricity Market Reform CFDs seek stable prices via contracts for difference, balancing renewables and nuclear, shielding consumers, and boosting competitiveness as France and Germany clash over scope, grid expansion, and hydrogen production.

 

Key Points

EU framework using contracts for difference to stabilize power prices, support renewables and nuclear, and protect users.

✅ Guarantees strike prices for new low-carbon generation

✅ Balances consumer protection with industrial competitiveness

✅ Disputed scope: nuclear inclusion, grids, hydrogen eligibility

 

Despite record temperatures this October, Europe is slowly shifting towards winter - its second since the Ukraine war started and prompted Russia to cut gas supplies to the continent amid an energy crisis that has reshaped policy.

After prices surged last winter, when gas and electricity bills “nearly doubled in all EU capitals”, the EU decided to take emergency measures to limit prices.

In March, the European Commission proposed a reform to revamp the electricity market “to boost renewables, better protect consumers and enhance industrial competitiveness”.

However, France and Germany are struggling to find a compromise as rolling back prices is tougher than it appears and the clock is ticking as European energy ministers prepare to meet on 17 October in Luxembourg.


The controversy around CFDs
At the heart of the issue are contracts for difference (CFDs).

By providing a guaranteed price for electricity, CFDs aim to support investment in renewable energy projects.

France - having 56 nuclear reactors - is lobbying for nuclear energy to be included in the CFDs, but this has caught the withering eye of Germany.

Berlin suspects Paris of wanting an exception that would give its industry a competitive advantage and plead that it should only apply to new investments.


France wants ‘to regain control of the price’
The disagreement is at the heart of the bilateral talks in Hamburg, which started on Monday, between the French and German governments.

French President Emmanuel Macron promised “to regain control of the price of electricity, at the French and European level” and outlined a new pricing scheme in a speech at the end of September.

As gas electricity is much more expensive than nuclear electricity, France might be tempted to switch to a national system rather than a European one after a deal with EDF on prices to be more competitive economically.

However, France is "confident" that it will reach an agreement with Germany on electricity market reforms, Macron said on Friday.

Siding with France are other pro-nuclear countries such as Hungary, the Czech Republic and Poland, while Germany can count on the support of Austria, Luxembourg, Belgium and Italy amid opposition from nine EU countries to treating market reforms as a price fix.

But even if a last-minute agreement is reached, the two countries’ struggles over energy are creeping into all current European negotiations on the subject.

Germany wants a massive extension of electricity grids on the continent so that it can import energy; France is banking on energy sovereignty and national production.

France wants to be able to use nuclear energy to produce clean hydrogen, while Germany is reluctant, and so on.

 

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