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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California Blackouts reveal lapses in power supply

California Electricity Reliability covers grid resilience amid heat waves, rolling blackouts, renewable energy integration, resource adequacy, battery storage, natural gas peakers, ISO oversight, and peak demand management to keep homes, businesses, and industry powered.

 

Key Points

Dependable California power delivery despite heat waves, peak demand, and challenges integrating renewables into grid.

✅ Rolling blackouts revealed gaps in resource adequacy.

✅ Early evening solar drop requires fast ramping and storage.

✅ Agencies pledge planning reforms and flexible backup supply.

 

One hallmark of an advanced society is a reliable supply of electrical energy for residential, commercial and industrial consumers. Uncertainty that California electricity will be there when we need it it undermines social cohesion and economic progress, as demonstrated by the travails of poor nations with erratic energy supplies.

California got a small dose of that syndrome in mid-August when a record heat wave struck the state and utilities were ordered to impose rolling blackouts to protect the grid from melting down under heavy air conditioning demands.

Gov. Gavin Newsom quickly demanded that the three overseers of electrical service to most of the state - the Public Utilities Commission, the Energy Commission and the California Independent Service Operator – explain what went wrong.

"These blackouts, which occurred without prior warning or enough time for preparation, are unacceptable and unbefitting of the nation's largest and most innovative state," Newsom wrote. "This cannot stand. California residents and businesses deserve better from their government."

Initially, there was some fingerpointing among the three entities. The blackouts had been ordered by the California Independent System Operator, which manages the grid and its president, Steve Berberich, said he had warned the Public Utilities Commission about the potential supply shortfall facing the state.

"We have indicated in filing after filing after filing that the resource adequacy program was broken and needed to be fixed," he said. "The situation we are in could have been avoided."

However, as political heat increased, the three agencies hung together and produced a joint report that admitted to lapses of supply planning and grid management and promised steps to avoid a repeat next summer.

"The existing resource planning processes are not designed to fully address an extreme heat storm like the one experienced in mid August," their report said. "In transitioning to a reliable, clean and affordable resource mix, resource planning targets have not kept pace to lead to sufficient resources that can be relied upon to meet demand in the early evening hours. This makes balancing demand and supply more challenging."

Although California's grid had experienced greater heat-related demands in previous years, most notably 2006, managers then could draw standby power from natural gas-fired plants and import juice from other Western states when necessary.

Since then, the state has shut down a number of gas-fired plants and become more reliant on renewable but less reliable sources such as windmills and solar panels.

August's air conditioning demand peaked just as output from solar panels was declining with the setting of the sun and grid managers couldn't tap enough electrons from other sources to close the gap.

While the shift to renewables didn't, unto itself, cause the blackouts, they proved the need for a bigger cushion of backup generation or power storage in batteries or some other technology. The Public Utilities Commission, as Beberich suggested, has been somewhat lax in ordering development of backup supply.

In the aftermath of the blackouts, the state Water Resources Control Board, no doubt with direction from Newsom's office, postponed planned shutdowns of more coastal plants, which would have reduced supply flexibility even more.

Shifting to 100% renewable electricity, the state's eventual goal, while maintaining reliability will not get any easier. The state's last nuclear plant, Diablo Canyon, is ticketed for closure and demand will increase as California eliminates gasoline- and diesel-powered vehicles in favor of "zero emission vehicles" as part of its climate policies push and phases out natural gas in homes and businesses.

Politicians such as Newsom and legislators in last week's blackout hearing may endorse a carbon-free future in theory, but they know that they'll pay the price as electricity prices climb if nothing happens when Californians flip the switch.

 

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Fuel Cell Electric Buses Coming to Mississauga

Mississauga Fuel Cell Electric Buses advance zero-emission public transit, leveraging hydrogen fuel cells, green hydrogen supply, rapid refueling, and extended range to cut GHGs, improve air quality, and modernize sustainable urban mobility.

 

Key Points

Hydrogen fuel cell buses power electric drivetrains for zero-emission service, long range, and quick refueling.

✅ Zero tailpipe emissions improve urban air quality

✅ Longer route range than battery-electric buses

✅ Hydrogen fueling is rapid, enabling high uptime

 

Mississauga, Ontario, is gearing up for a significant shift in its public transportation landscape with the introduction of fuel cell electric buses (FCEBs). This initiative marks a pivotal step toward reducing greenhouse gas emissions and enhancing the sustainability of public transport in the region. The city, known for its vibrant urban environment and bustling economy, is making strides to ensure that its transit system evolves in harmony with environmental goals.

The recent announcement highlights the commitment of Mississauga to embrace clean energy solutions. The integration of FCEBs is part of a broader strategy to modernize the transit fleet while tackling climate change. As cities around the world seek to reduce their carbon footprints, Mississauga’s initiative aligns with global trends toward greener urban transport, where projects like the TTC battery-electric buses demonstrate practical pathways.

What are Fuel Cell Electric Buses?

Fuel cell electric buses utilize hydrogen fuel cells to generate electricity, which powers the vehicle's electric motor. Unlike traditional buses that run on diesel or gasoline, FCEBs produce zero tailpipe emissions, making them an environmentally friendly alternative. The only byproducts of their operation are water and heat, significantly reducing air pollution in urban areas.

The technology behind FCEBs is becoming increasingly viable as hydrogen production becomes more sustainable. With the advancement of green hydrogen production methods, which use renewable energy sources to create hydrogen, and because some electricity in Canada still comes from fossil fuels, the environmental benefits of fuel cell technology are further amplified. Mississauga’s investment in these buses is not only a commitment to cleaner air but also a boost for innovative technology in the transportation sector.

Benefits for Mississauga

The introduction of FCEBs is poised to offer numerous benefits to the residents of Mississauga. Firstly, the reduction in greenhouse gas emissions aligns with the city’s climate action goals and complements Canada’s EV goals at the national level. By investing in cleaner public transit options, Mississauga is taking significant steps to improve air quality and combat climate change.

Moreover, FCEBs are known for their efficiency and longer range compared to battery electric buses, such as the Metro Vancouver fleet now operating across the region, commonly used in Canadian cities. This means they can operate longer routes without the need for frequent recharging, making them ideal for busy transit systems. The use of hydrogen fuel can also result in shorter fueling times compared to electric charging, enhancing operational efficiency.

In addition to environmental and operational advantages, the introduction of these buses presents economic opportunities. The deployment of FCEBs can create jobs in the local economy, from maintenance to hydrogen production facilities, similar to how St. Albert’s electric buses supported local capabilities. This aligns with broader trends of sustainable economic development that prioritize green jobs.

Challenges Ahead

While the potential benefits of FCEBs are clear, the transition to this technology is not without its challenges. One of the main hurdles is the establishment of a robust hydrogen infrastructure. To support the operation of fuel cell buses, Mississauga will need to invest in hydrogen production, storage, and fueling stations, much as Edmonton’s first electric bus required dedicated charging infrastructure. Collaboration with regional and provincial partners will be crucial to develop this infrastructure effectively.

Additionally, public acceptance and awareness of hydrogen technology will be essential. As with any new technology, there may be skepticism regarding safety and efficiency. Educational campaigns will be necessary to inform the public about the advantages of FCEBs and how they contribute to a more sustainable future, and recent TTC’s battery-electric rollout offers a useful reference for outreach efforts.

Looking Forward

As Mississauga embarks on this innovative journey, the introduction of fuel cell electric buses signifies a forward-thinking approach to public transportation. The city’s commitment to sustainability not only enhances its transit system but also sets a precedent for other municipalities to follow.

In conclusion, the shift towards fuel cell electric buses in Mississauga exemplifies a significant leap toward greener public transport. With ongoing efforts to tackle climate change and improve urban air quality, Mississauga is positioning itself as a leader in sustainable transit solutions. The future looks promising for both the city and its residents as they embrace cleaner, more efficient transportation options. As this initiative unfolds, it will be closely watched by other cities looking to implement similar sustainable practices in their own transit systems.

 

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Japan's power demand hit by coronavirus outbreak: industry head

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

 

Key Points

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

✅ Industrial slowdown cuts electricity consumption

✅ Utilities monitor grid stability and demand trends

✅ Pandemic-linked economic risks weigh on power sector

 

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

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

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

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

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

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

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

 

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Fire in manhole leaves thousands of Hydro-Québec customers without power

Montreal Power Outage linked to Hydro-Que9bec infrastructure after an underground explosion and manhole fire in Rosemont–La Petite–Patrie, disrupting the STM Blue Line and forcing strategic, cold-weather grid restoration on Be9langer Street.

 

Key Points

Outage from an underground blast and manhole fire disrupted STM service; Hydro-Que9bec restored the grid in cold weather.

✅ Peak impact: 41,000 customers; 10,981 still without power by 7:00 p.m.

✅ STM Blue Line restored after afternoon shutdown; Be9langer Street reopened.

✅ Hydro-Que9bec pacing restoration to avoid grid overload in cold weather.

 

Hydro-Québec says a power outage affecting Montreal is connected to an underground explosion and a fire in a manhole in Rosemont—La Petite–Patrie. 

The fire started in underground pipes belonging to Hydro-Québec on Bélanger Street between Boyer and Saint-André streets, according to Montreal firefighters, who arrived on the scene at 12:18 p.m.

The electricity had to be cut so that firefighters could get into the manhole where the equipment was located.

At the peak of the shutdown, nearly 41,000 customers were without power across Montreal.  As of 7:00 p.m., 10,981 clients still had no power.

In similar storms, Toronto power outages have persisted for hundreds, underscoring restoration challenges.

Hydro-Québec spokesperson Louis-Olivier Batty said the utility is being strategic about how it restores power across the grid. 

Because of the cold, and patterns seen during freezing rain outages, it anticipates that people will crank up the heat as soon as they get their electricity back, and that could trigger an overload somewhere else on the network, Batty said.

The Metro's Blue line was down much of the afternoon, but the STM announced the line was back up and running just after 4:30 p.m.

Bélanger Street was blocked to traffic much of the afternoon, however, it has now been reopened.

Batty said once the smoke clears, Hydro-Québec workers will take a look at the equipment to see what failed. 

 

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Nuclear plant workers cite lack of precautions around virus

Millstone COVID-19 safety concerns center on a nuclear refueling outage in Connecticut, temporary workers, OSHA complaints, PPE shortages, and disinfecting protocols, as Dominion Energy addresses virus precautions, staffing, and cybersecurity for safe voting infrastructure.

 

Key Points

Employee and union claims about PPE, cleaning, and OSHA compliance during a refueling outage at the nuclear plant.

✅ 10 positive cases; 750 temporary workers during refueling outage

✅ Union cites PPE gaps, partitions, and disinfectant effectiveness

✅ Dominion Energy notes increased cleaning, communication, staffing

 

Workers at Connecticut's only nuclear power plant worry that managers are not taking enough precautions against the coronavirus, as some utilities weigh on-site staffing measures to maintain operations, after 750 temporary employees were brought in to help refuel one of the two active reactors.

Ten employees at the Millstone Power Station in Waterford have tested positive for the virus, and, amid a U.S. grid pandemic warning, the arrival of the temporary workers alarms some of the permanent employees, The Day newspaper reported Sunday.

"Speaking specifically for the guard force, there's a lot of frustration, there's a lot of concern, and I would say there's anger," said Millstone security officer Jim Foley.

Foley, vice president of the local chapter of the United Government Security Officers of America, noted broader labor concerns such as unpaid wages for Kentucky miners while saying security personnel have had to fight for personal protective equipment and for partitions at access points to separate staff from security.

Foley also has filed a complaint with the Occupational Safety and Health Administration saying Millstone staff are using ineffective cleaning materials and citing a lack of cleaning and sanitizing, as telework limits at the EPA drew scrutiny during the pandemic, he said.

Officials at Millstone, owned by Dominion Energy, have not heard internal criticism about the plant's virus precautions, Millstone spokesman Kenneth Holt said.

"We've actually gotten a lot of compliments from employees on the steps we've taken," he said. "We've stepped up communications with employees to let them know what's going on."

As another example of communication efforts, COVID-19 updates at Site C have been published to keep workers informed.

Millstone recently increased cleaning staff on the weekends, Holt said, and there is regular disinfecting at the plant.

Separately, utility resilience remains a concern, as extended outages for tornado survivors in Kentucky may last weeks, affecting essential services.

Responding to the complaint about ineffective cleaning materials, Holt said staff members early in the pandemic went to a Home Depot and got a bottle of disinfectant that wasn't approved by the federal government as effective against the coronavirus. An approved disinfectant was brought in the next day, he said.

The deaths of nearly 2,500 Connecticut residents have been linked to COVID-19, the disease caused by the virus. More than 29,000 state residents have tested positive. As of Sunday, hospitalizations had declined for 11 consecutive days, to over 1,480.

With more people working remotely, utilities have reported higher residential electricity use during the pandemic, affecting household bills.

For most people, the coronavirus causes mild or moderate symptoms, such as fever and cough, that clear up in two to three weeks. For some, especially older adults and people with existing health problems, it can cause more severe illness, including pneumonia, and death.

In other developments related to the coronavirus:

SAFE VOTING

Secretary of the State Denise Merrill released a plan Monday aimed at making voting safe during the Aug. 11 primary and Nov. 3 general election.

Merrill said her office is requiring all cities and towns in the state to submit plans for the two elections that include a list of cleaning and safety products to be used, a list of polling locations, staffing levels at each polling location, and the names of polling workers and moderators.

Municipalities will be eligible for grants to cover the extra costs of holding elections during a pandemic, including expenses for cleaning products and increased staffing.

Merrill also announced her office and the Connecticut National Guard will perform a high-level cybersecurity assessment of the election infrastructure of all 169 towns in the state to guard against malicious actors.

Merrill's office also will provide network upgrades to the election infrastructures of 20 towns that have had chronic problems with connecting to the elections system.

 

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China power cuts: What is causing the country's blackouts?

China Energy Crisis drives electricity shortages, power cuts, and blackouts as coal prices surge, carbon-neutrality rules tighten, and manufacturing hubs ration energy, disrupting supply chains and industrial output ahead of winter demand peaks.

 

Key Points

A power shortfall from costly coal, price caps, and emissions targets, causing blackouts and industrial rationing.

✅ Coal prices soar while electricity tariffs are capped

✅ Factories in northeast hubs face rationing and downtime

✅ Supply chains risk delays ahead of winter demand

 

China is struggling with a severe shortage of electricity which has left millions of homes and businesses hit by power cuts.

Blackouts are not that unusual in the country but this year a number of factors have contributed to a perfect storm for electricity suppliers, including surging electricity demand globally.

The problem is particularly serious in China's north eastern industrial hubs as winter approaches - and is something that could have implications for the rest of the world.

Why has China been hit by power shortages?
The country has in the past struggled to balance electricity supplies with demand, which has often left many of China's provinces at risk of power outages.

During times of peak power consumption in the summer and winter the problem becomes particularly acute.

But this year a number of factors have come together to make the issue especially serious.

As the world starts to reopen after the pandemic, demand for Chinese goods is surging and the factories making them need a lot more power, highlighting China's electricity appetite in recent months.

Rules imposed by Beijing as it attempts to make the country carbon neutral by 2060 have seen coal production slow, even as the country still relies on coal for more than half of its power and as low-emissions generation is set to cover most global demand growth.

And as electricity demand has risen, the price of coal has been pushed up.

But with the government strictly controlling electricity prices, coal-fired power plants are unwilling to operate at a loss, with many drastically reducing their output instead.

Who is being affected by the blackouts?
Homes and businesses have been affected by power cuts as electricity has been rationed in several provinces and regions.

A coal-burning power plant can be seen behind a factory in China"s Inner Mongolia Autonomous Region

The state-run Global Times newspaper said there had been outages in four provinces - Guangdong in the south and Heilongjiang, Jilin and Liaoning in the north east. There are also reports of power cuts in other parts of the country.

Companies in major manufacturing areas have been called on to reduce energy usage during periods of peak demand or limit the number of days that they operate.

Energy-intensive industries such as steel-making, aluminium smelting, cement manufacturing and fertiliser production are among the businesses hardest hit by the outages.

What has the impact been on China's economy?
Official figures have shown that in September 2021, Chinese factory activity shrunk to the lowest it had been since February 2020, when power demand dropped as coronavirus lockdowns crippled the economy.

Concerns over the power cuts have contributed to global investment banks cutting their forecasts for the country's economic growth.

Goldman Sachs has estimated that as much as 44% of the country's industrial activity has been affected by power shortages. It now expects the world's second largest economy to expand by 7.8% this year, down from its previous prediction of 8.2%.

Globally, the outages could affect supply chains, including solar supply chains as the end-of-the-year shopping season approaches.

Since economies have reopened, retailers around the world have already been facing widespread disruption amid a surge in demand for imports.

China's economic planner, the National Development and Reform Commission (NDRC), has outlined a number of measures to resolve the problem, with energy supplies in the northeast of the country as its main priority this winter.

The measures include working closely with generating firms to increase output, ensuring full supplies of coal and promoting the rationing of electricity.

The China Electricity Council, which represents generating firms, has also said that coal-fired power companies were now "expanding their procurement channels at any cost" in order to guarantee winter heat and electricity supplies.

However, finding new sources of coal imports may not be straightforward.

Russia is already focused on its customers in Europe, Indonesian output has been hit by heavy rains and nearby Mongolia is facing a shortage of road haulage capacity,

Are energy shortages around the world connected?
Power cuts in China, UK petrol stations running out of fuel, energy bills jumping in Europe, near-blackouts in Japan and soaring crude oil, natural gas and coal prices on wholesale markets - it would be tempting to assume the world is suddenly in the grip of a global energy drought.

However, it is not quite as simple as that - there are some distinctly different issues around the world.

For example, in the UK petrol stations have run dry as motorists rushed to fill up their vehicles over concerns that a shortage of tanker drivers would mean fuel would soon become scarce.

Meanwhile, mainland Europe's rising energy bills and record electricity prices are due to a number of local factors, including low stockpiles of natural gas, weak output from the region's windmills and solar farms and maintenance work that has put generating operations out of action.
 

 

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