Duke criticized for drought protocol

By Knight Ridder Tribune


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Catawba Riverkeeper Donna Lisenby gives two reasons why the severe drought all but crippled the Catawba River basin in 2007.

The first, naturally, is a shortage of rainfall. The second, she said, is the system in place to prevent such problems did not work. "The Low Inflow Protocol didn't really work," said Lisenby as part of her public presentation "How Low Can We Go? Enduring the Drought of 2007-2008" at a recent CovekeepersÂ’ meeting at Red Fez Club in Steele Creek.

Duke Energy introduced the system, known as the Low Inflow Protocol, of checks and responses for water storage throughout the Catawba basin as part of its federal hydroelectric relicensing effort for 2008. The system was used voluntarily in 2007 by municipalities drawing Catawba water, increasing from a drought watch to mandatory- use restrictions by fall.

Now, looking back on the first trial for the LIP system, Lisenby says it needs to be reevaluated as dry weather looms in 2008.

"That minimum lake level for Lake Wylie does not work," Lisenby said. "Even if it did work, it was too little, too late."

The LIP system sets minimum lake levels for each of the 11 reservoirs along the Catawba, including Lake Wylie. As Lake Wylie dipped within two inches of its minimum level in the fall, the local boating economy and lake structures were damaged, Lisenby said. Access areas were closed and the impact on wildlife may not be fully known until the drought ends, she added.

Duke, however, considers the LIP model a success in that even record high temperatures in the summer and record low rainfall for several months could not push lakes below minimum levels, which are set based on the highest water intake.

"Clearly, the Low Inflow Protocol has worked and continues to be effective as water remains available for vital public safety and health needs," said Marilyn Lineberger, Duke spokeswoman.

Lisenby presented statistics showing seven basin water users actually increased overall water consumption in May through September 2007 compared to the same time in 2006. "We used more water in 2007 with mandatory restrictions on water use," she said.

Charlotte Mecklenburg Utilities showed an increase of more than 700 million gallons take out in May and June 2007 during the drought-watch stage.

During Stage 1 restrictions in July, use was up 141 million gallons compared to July 2006. By Stage 2 restrictions in August, water use was up 724 million gallons from August 2006.

By September 2007, which introduced Stage 3 mandatory restrictions, use increased 235 million gallons from the previous year.

Lisenby added factors including area growth could have contributed to the increases. Duke did not want to discuss data from other utilities. However, Lineberger said, by working with 24 water providers, water use in 2007 was lower than it would have been without the LIP system.

"By following the Low Inflow Protocol, individuals, businesses, cities and towns have conserved water and bought more time until normal rainfall patterns can return to our region," she said. Lisenby also said the LIP system does not provide enough in terms of limiting water use by the region's largest water user - Duke.

The 18 power plants along the Catawba use significantly more water than residential or commercial customers, with some plants requiring up to 30 gallons of cooling water to produce one kilowatt hour of electricity. Recent studies from Georgia show similar power plants requiring homes, on average, to use 27,000 gallons of water a month just in electricity production.

"Duke reduced its hydroelectric generation by more than 60 percent in order to save water during this period of drought," Lineberger said. "It's important to note that the basin supports power plants that generate vital electricity for a million or more customers."

Lisenby and Lineberger agree power is necessary, but Lisenby says more can be done to recycle water used to cool power plants. The two also agree that regardless of how well the LIP performs, the continuing drought is the biggest factor for low water levels.

"The biggest reason we dropped so low is the weather," Lisenby said. "We just didn't have the rainfall."

Duke will wait until the drought ends before deciding whether to make changes to the LIP system, which could require a federal application if changes are needed with its hydroelectric license.

"Once the drought is over, lessons learned will be reviewed and recommendations made to Duke Energy for future improvements in the interest of continuously improving the Low Inflow Protocol," Lineberger said.

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Ottawa won't oppose halt to Site C work pending treaty rights challenge

Site C Dam Injunction signals Ottawa's neutrality while B.C. reviews a hydroelectric dam project on the Peace River, amid First Nations treaty rights claims, federal approval defenses, and scrutiny of environmental assessment and Crown consultation.

 

Key Points

A legal request to pause Site C while courts weigh First Nations treaty rights, environmental review, and approvals.

✅ Ottawa neutral on injunction; still defends federal approvals

✅ First Nations cite treaty rights over Peace River territory

✅ B.C. jurisdiction, environmental assessment and Crown consultation at issue

 

The federal government is not going to argue against halting construction of the controversial Site C hydroelectric dam in British Columbia while a B.C. court decides if the project violates constitutionally protected treaty rights.

 

Work on Site C suspended prior to First Nations lawsuit

However a spokeswoman for Environment Minister Catherine McKenna said Monday the government will continue to defend the federal approval given for the project in December 2014, even though that approval was given using an environmental review process McKenna herself has said is fundamentally flawed.

The Site C project is an 1,100-megawatt dam and generating station on the Peace River in northern B.C. that will flood parts of the traditional territory of the West Moberly and Prophet River First Nations.

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In January, they filed a civil court case against the provincial government, B.C. Hydro and the federal government asking a judge to decide if their rights were being violated by the dam. A few weeks later, West Moberly asked the court for an injunction to halt construction pending the outcome of the rights case, similar to other contested transmission projects like the Maine electricity corridor debate in New England.

On May 11, lawyers for Attorney General Jody Wilson-Raybould filed a notice that Canada would remain neutral on the question of the injunction, meaning Canada won't argue against the idea of postponing construction for months, if not years, while the rights case winds through the court.

Wilson-Raybould has been silent on Site C since being named Canada's minister of justice in 2015, but in 2012, when she was the B.C. regional chief for the Assembly of First Nations, she said the project was "running roughshod" over treaty rights. The Justice Department on Monday directed questions to Environment and Climate Change Canada.

 

Defence of environmental assessment

McKenna's spokeswoman, Caroline Theriault, said the injunction request is just a procedural step regarding construction and that it is B.C. jurisdiction not federal.

However, she said Canada will defend the environmental assessment and Crown consultation processes and the federally issued permits required for construction.

 

B.C. auditor general set to scrutinize Site C dam project

McKenna has legislation before the House of Commons to overhaul the process for environmental assessment of major projects like hydro dams and pipelines, arguing the former government's procedures had skewed too far towards proponents. The overhaul includes requiring traditional Indigenous knowledge be taken into account, a consideration also central to the Columbia River Treaty talks underway on both sides of the border.

However, Theriault said the commitment to overhaul the process also included a promise not to revisit projects that had already been approved, such as Site C.

"The federal environmental assessment process for the Site C project has already been upheld in other court actions," said Theriault.

 

'It feels kind of odd'

West Moberly Chief Roland Wilson said he was both excited and yet concerned by Canada's decision last week not to oppose the injunction.

"It feels kind of odd and makes me wonder what they're up to," Wilson said.

However he said all he has ever wanted was for the project to be stopped until the question of rights can be answered. Wilson said two previous dams on the Peace River already flooded 80 per cent of the functional land within West Moberly's territory and that Site C will flood half of what's left. That land is used for fishing and hunting and there is also concern the dam will allow mercury to leak into Moberly Lake, he said.

 

Retiree undaunted by steep odds against his petition to stop Site C dam

Construction began in 2015 and more than $2.4 billion has already been spent on a project that will at the earliest, not be completed until 2024 and will cost an estimated $10 billion total, with cost overrun risks underscored by the Muskrat Falls ratepayer agreement in Atlantic Canada.

The province continues to argue against the injunction and will also fight the rights case, even as Alberta suspends power purchase talks with B.C. over energy disputes. Premier John Horgan campaigned on a promise to review the Site C approval. A B.C. Utilities Commission report in November found there are alternatives to building it and that it will go over budget. Nevertheless Horgan in December said he had to let construction continue because cancelling the project would be too costly both for the province and its electricity consumers, despite the B.C. rate freeze announced around the same period.

 

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Wasteful air conditioning adds $200 to summer energy bills, reveals BC Hydro

BC Hydro Air Conditioning Efficiency Tips help cut energy bills as HVAC use rises. Avoid inefficient portable AC units, set thermostats near 25 C, use fans and window shading, and turn systems off when unoccupied.

 

Key Points

BC Hydro's guidelines to lower summer power bills by optimizing A/C settings, fans, shading, and usage habits at home.

✅ Set thermostats to 25 C; switch off A/C when away

✅ Prefer fans and window shading; close doors/windows in heat

✅ Avoid multiple portable A/C units; choose efficient HVAC

 

BC Hydro is scolding British Columbians for their ineffective, wasteful and costly use of home air conditioners.

In what the electric utility calls “not-so-savvy” behaviour, it says many people are over-spending on air conditioning units that are poorly installed or used incorrectly.

"The majority of British Columbians will spend more time at home this summer because of the COVID-19 pandemic," BC Hydro says in a news release about an August survey of customers.

"With A/C use on the rise, there is evidence British Columbians are not cooling down efficiently, leading to higher summer electricity bills, as extreme heat boosts U.S. bills too this summer."

BC Hydro estimates some customers are shelling out $200 more on their summer energy bills than they need to during a record-breaking 2021 demand year for electricity.

The pandemic is compounding the demand for cool, comfortable air at home. Roughly two in five British Columbians between the ages of 25 and 50 are working from home five days a week.

However, it’s not just COVID-19 that is putting a strain on energy consumption and monthly bills, with drought affecting generation as well today.

About 90 per cent of people who use an air conditioner set it to a temperature below the recommended 25 Celsius, according to BC Hydro.

In fact, one in three people have set their A/C to the determinedly unseasonable temperature of 19 C.

Another 30 per cent are using more than one portable air conditioning unit, which the utility says is considered the most inefficient model on the market, and questions remain about crypto mining electricity use in B.C. today.

The use of air conditioners is steadily increasing in B.C. and has more than tripled since 2001, according to BC Hydro, with all-time high demand also reported in B.C. during recent heat waves. The demand for climate control is particularly high among condo-dwellers since apartments tend to trap heat and stay warmer.

This may explain why one in 10 residents of the Lower Mainland has three portable air conditioning units, and elsewhere Calgary's frigid February surge according to Enmax.

In addition, 30 per cent of people keep the air conditioning on for the sake of their pets while no one is home.

BC Hydro makes these recommendations to save energy and money on monthly bills while still keeping homes cooled during summer’s hottest days, and it also offers a winter payment plan to help manage costs:

Cool homes to 25 C in summer months when home; air conditioning should be turned off when homes are unoccupied.
In place of air conditioning, running a fan for nine hours a day over the summer costs $7.
Shading windows with drapes and blinds can help insulate a home by keeping out 65 per cent of the heat.
If the temperature outside a home is warmer than inside, keep doors and windows closed to keep cooler air inside.
Use a microwave, crockpot or toaster oven to avoid the extra heat produced by larger appliances, such as an oven, when cooking. Hang clothes to dry instead of using a dryer on hot days.

 

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Cheap material converts heat to electricity

Polycrystalline Tin Selenide Thermoelectrics enable waste heat recovery with ZT 3.1, matching single crystals while cutting costs, powering greener car engines, industrial furnaces, and thermoelectric generators via p-type and emerging n-type designs.

 

Key Points

Low-cost tin selenide devices that turn waste heat into power, achieving ZT 3.1 and enabling p-type and n-type modules.

✅ Oxygen removal prevents heat-leaking tin oxide grain skins.

✅ Polycrystalline ingots match single-crystal ZT 3.1 at lower cost.

✅ N-type tin selenide in development to pair with p-type.

 

So-called thermoelectric generators turn waste heat into electricity without producing greenhouse gas emissions, providing what seems like a free lunch. But despite helping power the Mars rovers, the high cost of these devices has prevented their widespread use. Now, researchers have found a way to make cheap thermoelectrics that work just as well as the pricey kind. The work could pave the way for a new generation of greener car engines, industrial furnaces, and other energy-generating devices.

“This looks like a very smart way to realize high performance,” says Li-Dong Zhao, a materials scientist at Beihang University who was not involved with the work. He notes there are still a few more steps to take before these materials can become high-performing thermoelectric generators. However, he says, “I think this will be used in the not too far future.”

Thermoelectrics are semiconductor devices placed on a hot surface, like a gas-powered car engine or on heat-generating electronics using thin-film converters to capture waste heat. That gives them a hot side and a cool side, away from the hot surface. They work by using the heat to push electrical charges from one to the other, a process of turning thermal energy into electricity that depends on the temperature gradient. If a device allows the hot side to warm up the cool side, the electricity stops flowing. A device’s success at preventing this, as well as its ability to conduct electrons, feeds into a score known as the figure of merit, or ZT.

 Over the past 2 decades, researchers have produced thermoelectric materials with increasing ZTs, while related advances such as nighttime solar cells have broadened thermal-to-electric concepts. The record came in 2014 when Mercouri Kanatzidis, a materials scientist at Northwestern University, and his colleagues came up with a single crystal of tin selenide with a ZT of 3.1. Yet the material was difficult to make and too fragile to work with. “For practical applications, it’s a non-starter,” Kanatzidis says.

So, his team decided to make its thermoelectrics from readily available tin and selenium powders, an approach that, once processed, makes grains of polycrystalline tin selenide instead of the single crystals. The polycrystalline grains are cheap and can be heated and compressed into ingots that are 3 to 5 centimeters long, which can be made into devices. The polycrystalline ingots are also more robust, and Kanatzidis expected the boundaries between the individual grains to slow the passage of heat. But when his team tested the polycrystalline materials, the thermal conductivity shot up, dropping their ZT scores as low as 1.2.

In 2016, the Northwestern team discovered the source of the problem: an ultrathin skin of tin oxide was forming around individual grains of polycrystalline tin selenide before they were pressed into ingots. And that skin acted as an express lane for the heat to travel from grain to grain through the material. So, in their current study, Kanatzidis and his colleagues came up with a way to use heat to drive any oxygen away from the powdery precursors, leaving pristine polycrystalline tin selenide, whereas other devices can generate electricity from thin air using ambient moisture.

The result, which they report today in Nature Materials, was not only a thermal conductivity below that of single-crystal tin selenide but also a ZT of 3.1, a development that echoes nighttime renewable devices showing electricity from cold conditions. “This opens the door for new devices to be built from polycrystalline tin selenide pellets and their applications to be explored,” Kanatzidis says.

Getting through that door will still take some time. The polycrystalline tin selenide the team makes is spiked with sodium atoms, creating what is known as a “p-type” material that conducts positive charges. To make working devices, researchers also need an “n-type” version to conduct negative charges.

Zhao’s team recently reported making an n-type single-crystal tin selenide by spiking it with bromine atoms. And Kanatzidis says his team is now working on making an n-type polycrystalline version. Once n-type and p-type tin selenide devices are paired, researchers should have a clear path to making a new generation of ultra-efficient thermoelectric generators. Those could be installed everywhere from automobile exhaust pipes to water heaters and industrial furnaces to scavenge energy from some of the 65% of fossil fuel energy that winds up as waste heat. 

 

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Clean energy jobs energize Pennsylvania: Clean Energy Employment Report

Pennsylvania Clean Energy Employment surges, highlighting workforce growth in energy efficiency, solar, wind, grid and storage, and alternative transportation, supporting COVID-19 recovery, high-wage jobs, manufacturing, construction, and statewide economic resilience.

 

Key Points

Jobs across clean power, efficiency, grid, storage, and advanced transport fueling Pennsylvania's workforce growth.

✅ 8.7% job growth from 2017-2019, outpacing statewide average

✅ 97,000+ employed across efficiency, solar, wind, grid, and fuels

✅ 75% earn above median; strong full-time opportunities

 

The 2020 Pennsylvania Clean Energy Employment Report has been released, and Gov. Tom Wolf is energized by it.

This "comes at an opportune time, as government and industry leaders look to strengthen Pennsylvania's workforce and economy in response to the challenges of the COVID-19 pandemic," Wolf said Monday in a prepared statement. "This detailed analysis of data and trends in clean energy employment ... demonstrates the sector was a top job generator statewide, and shows which industries were hiring and looking for trained workers."

Foremost among the findings, released Monday, is that the clean energy sector was responsible for adding 7,794 jobs from 2017 through 2019. That is an 8.7% average job growth rate, well above the 1.9% overall average in the state, according to a news release from Wolf's office.

This report lists employment data in five industries: energy efficiency; clean energy generation; alternative transportation; clean grid and storage; and clean fuels, while some cleaner states still import dirty electricity in regional markets.

The energy efficiency industry was the biggest clean energy employer in the state last year, with more than 71,400 state residents working in construction, technology and manufacturing jobs related to energy-efficient systems.

Solar energy workers comprised the largest share of the clean energy generation workforce – 35.4%, or 5,173 individuals. Solar employment increased 8.3% from 2017 to 2019, while there was a slight decline nationwide amid clean energy job losses reported in May.

Wind energy firms employed 2,937, and policy moves such as Ontario's clean electricity regulations signal broader market shifts, with more than 21% of those roles in manufacturing.

Job losses, though, were recorded in nuclear generation (minus 4.5%) and coal generation (minus 8.6%) over the two-year period, as electricity deregulation remains a point of debate in the sector. This mirrors national declines in both categories.

Federal efforts to support coal community revitalization are channeling clean energy projects to hard-hit regions.

Natural gas electric generation capacity doubled across Pennsylvania over the past decade; even as residents could face winter electricity price increases according to recent reports, employment still grew 13.4% from 2017 through 2019. But increasing output from unconventional wells has outpaced demand, sparking reductions in siting and drilling for new wells.

The Clean Energy Employment Report was released along with – and as part of – the 2020 Pennsylvania Energy Employment Report, which asserts that energy remains a large employer in the state, and new clean energy funding announcements underscore the sector's momentum. As of the last quarter of 2019, according to the larger report, energy accounted for 269,031 jobs, or 4.5% of the overall statewide workforce.

Wolf, in summary, said: "This report shows that workforce training investment decisions can benefit Pennsylvanians right now and position the state going forward to grow and improve livelihoods, the economy and our environment."

 

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Minister approves 30-megawatt wind farm expansion in Eastern Kings

Eastern Kings Wind Farm Expansion advances P.E.I. renewable energy with seven new wind turbines, environmental assessment, wildlife monitoring of birds and bats, and community consultation to double output to 30 MW for domestic consumption.

 

Key Points

A P.E.I. project adding seven turbines for 30 MW, under 17 conditions, with wildlife monitoring and community oversight.

✅ Seven new turbines, larger than existing units

✅ 17 conditions, monthly compliance reporting

✅ Two-year wildlife study for birds and bats

 

A proposal to expand an existing wind farm in eastern P.E.I. has been given the go-ahead, according to P.E.I.’s Department of Environment, Water and Climate Change, as related grid work like a new transmission line progresses in the region.

Minister Natalie Jameson approved the P.E.I. Energy Corporation’s Eastern Kings Wind Farm expansion project, the province announced in a release Wednesday afternoon, as Atlantic Canada advances other renewable initiatives like tidal power to diversify supply.

The project will be subject to 17 conditions, which were drawn from a review of the 80 responses the province received from the public on the proposed Eastern Kings Wind Farm expansion.

The corporation must provide a summary on the status of each condition to the department on a monthly basis.

“This decision balances the needs of people, communities, wellness and the environment,” Jameson said in the release.

“It allows this renewable energy project to proceed and reduce greenhouse [gas] emissions that cause climate change while mitigating the project’s impact to the Island’s ecosystem.”

The P.E.I. Energy Corporation wants to double the output of its Eastern Kings Wind Farm with the installation of seven wind turbines between the communities of Elmira and East Point to develop 30 megawatts of wind power for domestic consumption, according to the minister’s impact assessment, aligning with regional moves to expand wind and solar projects across Atlantic Canada.

The new turbines are expected to be larger than the existing 10 at the site, even as regional utilities study major grid changes to integrate more renewables.

Project must comply with conditions

In February, the province said it would identify any specific questions or concerns it felt needed to be addressed in the submissions, according to Greg Wilson, manager of environmental land management for the province, while some advocate for independent electricity planning to guide such decisions.

Public feedback closed in January, after an earlier extension to wait for a supplemental report on birds and bats.

The corporation needs to comply with all conditions – such as monitoring environmental impact, setting up an environmental management plan and creating a committee to address concerns – listed in the release on Wednesday, amid calls from environmental advocates to reduce biomass use in electricity generation.

A condition in the release suggests representatives from L’nuey, the Souris and Area Wildlife Branch, the Rural Municipality of Eastern Kings and local residents to make up the committee.

The corporation will also need to conduct a study over two years after construction to look at the impact on bats and birds, and implement a protocol to report deaths of birds to federal and provincial authorities.

According to Canada Energy Regulator, roughly 98 per cent of power generated on P.E.I. comes from wind farms. It also said there were 203 megawatts installed on P.E.I. as of 2018, and the majority of energy consumed on the Island comes from New Brunswick from a mix of nuclear, fossil fuels and hydroelectricity, while in Nova Scotia, the utility has increased biomass generation as part of its supply mix.

 

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Tens of Thousands Left Without Power as 'Bomb Cyclone' Strikes B.C. Coast

British Columbia Bomb Cyclone disrupts coastal travel with severe wind gusts, heavy rainfall, widespread power outages, ferry cancellations, flooding, and landslides across Vancouver Island, straining emergency services and transport networks during the early holiday season.

 

Key Points

A rapidly intensifying storm hitting B.C.'s coast, causing damaging winds, heavy rain, power outages, and ferry delays.

✅ Wind gusts over 100 km/h and well above normal rainfall

✅ Power outages, flooded roads, and downed trees across the coast

✅ Ferry cancellations isolating communities and delaying supplies

 

A powerful storm, dubbed a "bomb cyclone," recently struck the British Columbia coast, wreaking havoc across the region. This intense weather system led to widespread disruptions, including power outages affecting tens of thousands of residents and the cancellation of ferry services, crucial for travel between coastal communities. The bomb cyclone is characterized by a rapid drop in pressure, resulting in extremely strong winds and heavy rainfall. These conditions caused significant damage, particularly along the coast and on Vancouver Island, where flooding and landslides led to fallen trees blocking roads, further complicating recovery efforts.

The storm's ferocity was especially felt in coastal areas, where wind gusts reached over 100 km/h, and rainfall totals were well above normal. The Vancouver region, already susceptible to storms during the winter months, faced dangerous conditions as power lines were downed, and transportation networks struggled to stay operational. Emergency services were stretched thin, responding to multiple weather-related incidents, including fallen trees, damaged infrastructure, and local flooding.

The ferry cancellations further isolated communities, especially those dependent on these services for essential supplies and travel. With many ferry routes out of service, residents had to rely on alternative transportation methods, which were often limited. The storm's timing, close to the start of the holiday season, also created additional challenges for those trying to make travel arrangements for family visits and other festive activities.

As cleanup efforts got underway, authorities warned that recovery would take time, particularly due to the volume of downed trees and debris. Crews worked to restore power and clear roads, while local governments urged people to stay indoors and avoid unnecessary travel, and BC Hydro's winter payment plan provided billing relief during outages. For those without power, the storm brought cold temperatures, and record electricity demand in 2021 showed how cold snaps strain the grid, making it crucial for families to find warmth and supplies.

In the aftermath of the bomb cyclone, experts highlighted the increasing frequency of such extreme weather events, driven in part by climate change and prolonged drought across the province. With the potential for more intense storms in the future, the region must be better prepared for these rapid weather shifts. Authorities are now focused on bolstering infrastructure to withstand such events, as all-time high demand has strained the grid recently, and improving early warning systems to give communities more time to prepare.

In the coming weeks, as British Columbia continues to recover, lessons learned from this storm will inform future responses to similar weather systems. For now, residents are advised to remain vigilant and prepared for any additional weather challenges, with recent blizzard and extreme cold in Alberta illustrating how conditions can deteriorate quickly.

 

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