Wind farm opponents fear sweeping legislation

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Ontario's new Green Energy Act has residents who are fighting wind farm developments worried the sweeping legislation will allow the province to ignore local concerns as it pursues some of the most ambitious renewable energy goals in the country.

George Smitherman, the province's Minister of Energy and Infrastructure, unveiled the legislation on February 23, drawing international attention along with endorsements from environmental groups and developers. The comprehensive Act would set a fixed price for electricity generated from renewable sources, establish efficiency standards for appliances and require homeowners to conduct energy audits before selling their houses.

Most provinces have moved to add more "green" energy to their power supply, but the $5-billion Ontario plan sets a new standard. The proposed legislation also sets province-wide guidelines for the location of energy projects and kills municipalities' power to block them.

Wind farm opponents worry the new approval process will make it possible to push projects forward without the support of the surrounding community.

"We are very concerned that the provincial government is simply going to pay lip service to our concerns," said Beth Harrington, a spokeswoman for Wind Concerns Ontario, an organization representing more than a dozen community groups across the province.

"This is a new technology and the wind turbines are getting bigger and bigger and bigger. The turbines are going to have a greater impact as time moves on and we need some clear guidelines."

The proposed legislation does not indicate how close wind turbines will be allowed near homes, roads or environmentally sensitive areas. These details and the final approval process will be established through consultation with municipalities, according to Amy Tang, a spokeswoman for Mr. Smitherman.

"As part of developing the approval process, we will be outlining what would be involved in community consultation or outreach," Ms. Tang said, adding later, "We're going to be establishing provincial standards for setbacks [from residences], but that is not to say we will not be allowing public consultation."

It is worrisome that the province's legislation has the potential to override local bylaws meant to curtail the effects of noise, low frequency vibrations and outdoor light sources on residents, said Gary Mooney, president of Concerned Citizens for Prince Edward County, another group contending with wind farms.

"Noise and flashing lights are the kinds of things that will be of concern to people living close to these turbines," Mr. Mooney said. "So really, this is a major uploading of the responsibilities for the rules relating to wind turbines and I would expect some municipalities are not going to be very happy."

The Association of Municipalities of Ontario has endorsed the new legislation, but said in a statement that it expects "proposals to change municipal planning authority will be offset by processes that provide for municipal input and public consultation on energy issues."

The Ontario plan will also require homeowners to conduct an energy audit on a home they choose to sell, a move that drew considerable criticism.

The audit, which costs around $300, will point out where a home can be improved in order to increase its energy efficiency. Premier Dalton McGuinty said the audit is a simple matter that lets a homebuyer know what, if anything, can be done to improve the home's energy efficiency.

He suggested sellers negotiate with their buyer and try to build the additional cost of the audit and any improvements into the home's sale price.

However, the Ontario Real Estate Association said there is nothing simple about the new audit. President Gerry Weir warned audits could end up costing home sellers thousands.

"It's not the initial cost of these audits that concerns us," Mr. Weir said in a release. "These audits will be used by home buyers as bargaining chips to significantly reduce the final selling price."

The audit could see trivial matters, such as improperly insulated windows, give a home buyer the opportunity to request $10,000 or more off the asking price of a home by claiming they need to install new windows before they move in.

"Today's economic downturn is a terrible time to introduce this measure. Home sellers are already worried about lost equity in their homes," said Mr. Weir. "A move like this, which will reduce their value even further, will not help them in any way."

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Ukraine Prepares for Winter Amid Energy Challenges

Ukraine Winter Energy Resilience focuses on energy security, grid repairs, renewable power, EU support, heating reliability, electricity imports, and conservation measures to stabilize infrastructure and protect households amid conflict and severe cold.

 

Key Points

A strategy to secure heat and power via repairs, renewables, imports, and conservation during wartime winter.

✅ Grid repairs and hardening of power plants and transmission lines

✅ Diversified supply: renewables, electricity imports, fuel reserves

✅ Public conservation to cut peak demand and safeguard essential services

 

As winter approaches, Ukraine is bracing for a challenging season, especially in the energy sector amid global energy instability and price pressures, which has been heavily impacted by the ongoing conflict with Russia. With the weather forecast predicting colder temperatures, the Ukrainian government is ramping up efforts to secure energy supplies and bolster infrastructure, aiming to ensure that citizens have access to heating and electricity during the harsh months ahead.

The Energy Landscape in Ukraine

The conflict has severely disrupted Ukraine’s energy infrastructure, leading to widespread damage and inefficiencies. Key facilities, including power plants and transmission lines, have been targeted amid energy ceasefire violations reported by both sides, resulting in significant energy shortages. As a response, the government has implemented a series of measures aimed at stabilizing the energy sector, ensuring that the nation can withstand the winter months.

One of the primary strategies has been the repair and reinforcement of energy infrastructure. Officials have prioritized critical facilities that are essential for electricity generation and distribution. Emergency repairs and upgrades are being carried out to restore functionality and improve resilience against potential attacks.

In addition to repairing existing infrastructure, Ukraine is actively seeking to diversify its energy sources. This includes increasing reliance on renewable energy, such as wind and solar, which can be less susceptible to disruption. The shift toward renewables not only enhances energy security and supports moving away from fossil fuels in line with Ukraine's long-term environmental goals.

International Support and Collaboration

Ukraine's challenges have not gone unnoticed on the international stage. Countries and organizations around the world have pledged energy security support to help Ukraine fortify its energy sector. This assistance includes financial aid, technical expertise, and the provision of materials needed for infrastructure repairs.

The European Union, in particular, has been a key ally, providing both immediate and long-term support to Ukraine's energy efforts. The EU's commitment to helping Ukraine transition to a more sustainable energy model, including steps toward ENTSO-E synchronization to bolster grid stability, is reflected in various initiatives aimed at increasing energy efficiency and integrating renewable sources.

Furthermore, international organizations have mobilized resources to assist in the restoration of damaged infrastructure. This collaboration not only enhances Ukraine's energy capabilities but also strengthens ties with global partners, fostering a sense of solidarity amidst the ongoing conflict.

Preparing for Winter Challenges

As temperatures drop, the demand for heating will surge, putting additional pressure on an already strained energy system. To address this, the Ukrainian government is urging citizens to prepare for potential shortages. Officials are promoting energy conservation measures, encouraging households to reduce consumption and use energy more efficiently.

Public awareness campaigns are being launched to educate citizens about the importance of energy saving and the steps they can take to minimize their energy use and prevent outages during peak demand. These initiatives aim to foster a collective sense of responsibility as the nation braces for the winter ahead.

In addition to conservation efforts, the government is exploring alternative energy supplies. This includes negotiating with neighboring countries for electricity imports and enhancing domestic production where feasible. By securing a diverse range of energy sources, Ukraine aims to mitigate the risk of shortages and ensure that essential services remain operational.

The Role of Resilience and Innovation

Despite the challenges, the resilience of the Ukrainian people and their commitment to overcoming adversity shine through. Communities are coming together to support one another, sharing resources and information to help navigate the difficulties of winter.

Innovative solutions are also emerging as part of the response to the energy crisis. Local initiatives aimed at promoting energy efficiency and the use of alternative energy sources are gaining traction. From community-led solar projects to energy-efficient building practices, Ukrainians are finding ways to adapt and thrive even in the face of uncertainty.

Looking Ahead

As Ukraine prepares for the winter months, the focus remains on ensuring energy security and maintaining the functionality of critical infrastructure. While challenges loom, the collective efforts of the government, international partners, and citizens demonstrate a strong commitment to resilience and adaptation.

In conclusion, the upcoming winter presents significant challenges for Ukraine's energy sector, yet the nation's determination to secure its energy future remains unwavering. With ongoing repairs, international support, and community innovation, Ukraine is working diligently to navigate the complexities of this winter, aiming to emerge stronger and more resilient in the face of adversity. The resilience shown today will be crucial as the country continues to confront the ongoing impacts of conflict and seeks to build a sustainable future.

 

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Cheaper electricity rate for customers on First Nations not allowed, Manitoba appeal court rules

Manitoba Hydro Court Ruling affirms the Public Utilities Board exceeded its jurisdiction by ordering a First Nations rate class, overturning an electricity rates appeal tied to geography, poverty, and regulatory authority in Manitoba.

 

Key Points

A decision holding the PUB lacked authority to create a First Nations rate class, restoring uniform electricity pricing.

✅ Court says PUB exceeded jurisdiction creating on-reserve rate

✅ Equalized electricity pricing reaffirmed across Manitoba

✅ Geography, not poverty, found decisive in unlawful rate class

 

Manitoba Hydro was wrongly forced to create a new rate class for electricity customers living on First Nations, the Manitoba Court of Appeal has ruled. 

The court decided the Public Utilities Board "exceeded its jurisdiction" by mandating Indigenous customers on First Nations could have a different electricity rate from other Manitobans. 

The board made the order in 2018, which exempted those customers from the general rate increase that year of 3.6 per cent.

"The directive constituted the creation and implementation of general social policy, an area outside of the PUB's jurisdiction and encroaching into areas that are better suited to the federal and provincial government," says the decision, which was released Tuesday.

Hydro's appeal of the PUB's decision went to court earlier this year.

At the time, the Crown corporation acknowledged many Indigenous people on First Nations live in poverty, but it argued the Public Utilities Board was overstepping its authority in trying to address the issue by creating a new rate class.

It also argued it was against provincial law to charge different rates in different areas of the province.

The PUB, however, insisted that legislation gives it the right to decide which factors are relevant when considering electricity prices, such as social issues. 

Special Manitoba Hydro rate class needed to offset challenges of living on First Nations, appeal court hears
Manitoba Hydro can appeal order to create special First Nation rate
The board had heard evidence that some customers were making "unacceptable" sacrifices to keep the lights on each month.

Decision 'heavy-handed': AMC
The Assembly of Manitoba Chiefs, an intervener in the appeal, had backed the utility board's position. It said on-reserve customers are disproportionately vulnerable to rate hikes over time.

Grand Chief Arlen Dumas said Wednesday he was surprised by the court's ruling. 

He argued Indigenous people are unduly excluded in the setting of electricity rates in Manitoba.

"I will be speaking with my federal and provincial counterparts on how we deal with this issue, because I think it's the wrong [decision]. It's heavy-handed and we need to address it."

The appeal court judges said there is past precedent for setting equal electricity rates, regardless of where customers live. Legislation to that effect was made in the early 2000s and a few years ago, the PUB recognized that geographical limitations should not be imposed on a class of customers.

Since the board's new order didn't extend the same savings to First Nations members who don't live on reserve but face similar financial circumstances, it is clear the deciding factor was geography, rather than poverty or treaty status, the judges said.

Manitoba Hydro temporarily cutting 200 jobs, many of them front-line workers
"In my view, the PUB erred in law when it created an on-reserve class based solely on a geographic region of the province in which customers are located," the decision read.

While Manitoba Hydro objected to the PUB's order in 2018, it still devoted money to create the new customer class.

Spokesperson Bruce Owen said the utility is still studying the impact of the court's decision, but it appreciates the ruling.  

"We all recognize that many people on First Nations have challenges, but our argument was solely on whether or not the PUB had the authority to create a special rate class based on where people live."

Owen added that Hydro recognizes electricity rates can be a hardship on individuals facing poverty. He said those considerations are part of the discussions the corporation has with the utilities board.

 

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Germany’s renewable energy dreams derailed by cheap Russian gas, electricity grid expansion woes

Germany Energy Transition faces offshore wind expansion, grid bottlenecks, and North-South transmission delays, while Nord Stream 2 boosts Russian gas reliance and lignite coal persists amid a nuclear phaseout and rising re-dispatch costs.

 

Key Points

Germanys shift to renewables faces grid delays, boosting gas via Nord Stream 2 and extending lignite coal use.

✅ Offshore wind grows, but grid congestion curtails turbines.

✅ Nord Stream 2 expands Russian gas supply to German industry.

✅ Lignite coal persists, raising emissions amid nuclear exit.

 

On a blazing hot August day on Germany’s Baltic Sea coast, a few hundred tourists skip the beach to visit the “Fascination Offshore Wind” exhibition, held in the port of Mukran at the Arkona wind park. They stand facing the sea, gawking at white fiberglass blades, which at 250 feet are longer than the wingspan of a 747 aircraft. Those blades, they’re told, will soon be spinning atop 60 wind-turbine towers bolted to concrete pilings driven deep into the seabed 20 miles offshore. By early 2019, Arkona is expected to generate 385 megawatts, enough electricity to power 400,000 homes.

“We really would like to give the public an idea of what we are going to do here,” says Silke Steen, a manager at Arkona. “To let them say, ‘Wow, impressive!’”

Had the tourists turned their backs to the sea and faced inland, they would have taken in an equally monumental sight, though this one isn’t on the day’s agenda: giant steel pipes coated in gray concrete, stacked five high and laid out in long rows on a stretch of dirt. The port manager tells me that the rows of 40-foot-long, 4-foot-thick pipes are so big that they can be seen from outer space. They are destined for the Nord Stream 2 pipeline, a colossus that, when completed next year, will extend nearly 800 miles from Russia to Germany, bringing twice the amount of gas that a current pipeline carries.

The two projects, whose cargo yards are within a few hundred feet of each other, provide a contrast between Germany’s dream of renewable energy and the political realities of cheap Russian gas. In 2010, Germany announced an ambitious goal of generating 80 percent of its electricity from renewable sources by 2050. In 2011, it doubled down on the commitment by deciding to shut down every last nuclear power plant in the country by 2022, as part of a broader coal and nuclear phaseout strategy embraced by policymakers. The German government has paid more than $600 billion to citizens and companies that generate solar and wind power. As a result, the generating capacity from renewable sources has soared: In 2017, a third of the nation’s electricity came from wind, solar, hydropower and biogas, up from 3.6 percent in 1990.

But Germany’s lofty vision has run into a gritty reality: Replacing fossil fuels and nuclear power in one of the largest industrial nations in the world is politically more difficult and expensive than planners thought. It has forced Germany to put the brakes on its ambitious renewables program, ramp up its investments in fossil fuels, amid a renewed nuclear option debate over climate strategy, and, to some extent, put its leadership role in the fight against climate change on hold.

The trouble lies with Germany’s electricity grid. Solar and wind power call for more complex and expensive distribution networks than conventional large power plants do. “What the Germans were good at was getting new technology into the market, like wind and solar power,” said Arne Jungjohann, author of Energy Democracy: Germany’s ENERGIEWENDE to Renewables. To achieve its goals, “Germany needs to overhaul its whole grid.”

 

The North-South Conundrum

The boom in wind power has created an unanticipated mismatch between supply and demand. Big wind turbines, especially offshore plants such as Arkona, produce powerful, concentrated gusts of energy. That’s good when the factory that needs that energy is nearby and the wind kicks up during working hours. It’s another matter when factories are hundreds of miles away. In Germany, wind farms tend to be located in the blustery north. Many of the nation’s big factories lie in the south, which also happens to be where most of the country’s nuclear plants are being mothballed.

Getting that power from north to south is problematic. On windy days, northern wind farms generate too much energy for the grid to handle. Power lines get overloaded. To cope, grid operators ask wind farms to disconnect their turbines from the grid—those elegant blades that tourists so admired sit idle. To ensure a supply of power, operators employ backup generators at great expense. These so-called re-dispatching costs ran to 1.4 billion euros ($1.6 billion) last year.

The solution is to build more power transmission lines to take the excess wind from northern wind farms to southern factories. A grid expansion project is underway to do exactly that. Nearly 5,000 miles of new transmission lines, at a cost of billions of euros, will be paid for by utility customers. So far, less than a fifth of the lines have been built.

The grid expansion is “catastrophically behind schedule,” Energy Minister Peter Altmaier told the Handelsblatt business newspaper in August. Among the setbacks: citizens living along the route of four high-voltage power lines have demanded the cables be buried underground, which has added to the time and expense. The lines won’t be finished before 2025—three years after Germany’s nuclear shutdown is due to be completed.

With this backlog, the government has put the brakes on wind power, reducing the number of new contracts for farms and curtailing the amount it pays for renewable energy. “In the past, we have focused too much on the mere expansion of renewable energy capacity,” Joachim Pfeiffer, a spokesman for the Christian Democratic Union, wrote to Newsweek. “We failed to synchronize this expansion of generation with grid expansion.”

Advocates of renewables are up in arms, accusing the government of suffocating their industry and making planning impossible. Thousands of people lost their jobs in the wind industry, according to Wolfram Axthelm, CEO of the German Wind Energy Association. “For 2019 and 2020, we see a highly problematic situation for the industry,” he wrote in an email.

 

Fueling the Gap

Nord Stream 2, by contrast, is proceeding according to schedule. A beige and black barge, Castoro 10, hauls dozens of lengths of giant pipe off Germany’s Baltic Sea coast, where a welding machine connects them for lowering onto the seabed. The $11 billion project is funded by Russian state gas monopoly Gazprom and five European investors, at no direct cost to the German taxpayer. It is slated to cross the territorial waters of five countries—Germany, Russia, Finland, Sweden and Denmark. All but Denmark have approved the route. “We have good reason to believe that after four governments said yes, that Denmark will also approve the pipeline,” says Nord Stream 2 spokesman Jens Mueller.

Construction of the pipeline off Finland began in September, and the gas is expected to start flowing in late 2019, giving Russia leverage to increase its share of the European gas market. It already provides a third of the gas used in the EU and will likely provide more after the Netherlands stops its gas production in 2030. President Donald Trump has called the pipeline “a very bad thing for NATO” and said that “Germany is totally controlled by Russia.” U.S. senators have threatened sanctions against companies involved in the project. Ukraine and Poland are concerned the new pipeline will make older pipelines in their territories irrelevant.

German leaders are also wary of dependence on Russia but are under considerable pressure to deliver energy to industry. Indeed, among the pipeline’s investors are German companies that want to run their factories, like BASF’s Wintershall subsidiary and Uniper, the German utility. “It’s not that Germany is naive,” says Kirsten Westphal, an energy expert at the German Institute for International and Security Affairs. It’s just pragmatic. “Economically, the judgment is that yes, this gas will be needed, we have an import gap to fill.”

The electricity transmission problem has also opened an opportunity for lignite coal, as coal generation in Germany remains significant, the most carbon-intensive fuel available and the source for nearly a quarter of Germany’s power. Mining companies are expanding their operations in coal-rich regions to strip out the fuel while it is still relevant. In the village of Pödelwitz, 155 miles south of Berlin, most houses feature a white sign with the logo of Mibrag, the German mining giant, which has paid nearly all the 130 residents to relocate. The company plans to level the village and scrape lignite that lies below the soil.

A resurgence in coal helped raise carbon emissions in 2015 and 2016 (2017 saw a slight decline), maintaining Germany’s place as Europe’s largest carbon emitter. Chancellor Angela Merkel has scrapped her pledge to slash carbon emissions to 40 percent of 1990 levels by the year 2020. Several members have threatened to resign from her policy commission on coal if the government allows utility company RWE to mine for lignite in Hambach Forest.

Only a few years ago, during the Paris climate talks, Germany led the EU in pushing for ambitious plans to curb emissions. Now, it seems to be having second thoughts. Recently, the European Union’s climate chief, Miguel Arias Cañete, suggested EU nations step up their commitment to reduce carbon emissions by 45 percent of 1990 levels instead of 40 percent by 2030. “I think we should first stick to the goals we have already set ourselves,” Merkel replied, even as a possible nuclear phaseout U-turn is debated, “I don’t think permanently setting ourselves new goals makes any sense.”

 

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U.S. Launches $250 Million Program To Strengthen Energy Security For Rural Communities

DOE RMUC Cybersecurity Program supports rural, municipal, and small investor-owned utilities with grants, technical assistance, grid resilience, incident response, workforce training, and threat intelligence sharing to harden energy systems and protect critical infrastructure.

 

Key Points

A $250M DOE program providing grants to boost rural and municipal utilities' cybersecurity and incident response.

✅ Grants and technical assistance for grid security

✅ Enhances incident response and threat intel sharing

✅ Builds cybersecurity workforce in rural utilities

 

The U.S. Department of Energy (DOE) today issued a Request for Information (RFI) seeking public input on a new $250 million program to strengthen the cybersecurity posture of rural, municipal, and small investor-owned electric utilities.

Funded by President Biden’s Bipartisan Infrastructure Law and broader clean energy funding initiatives, the Rural and Municipal Utility Advanced Cybersecurity Grant and Technical Assistance (RMUC) Program will help eligible utilities harden energy systems, processes, and assets; improve incident response capabilities; and increase cybersecurity skills in the utility workforce. Providing secure, reliable power to all Americans, with a focus on equity in electricity regulation across communities, will be a key focus on the pathway to achieving President Biden’s goal of a net-zero carbon economy by 2050. 

“Rural and municipal utilities provide power for a large portion of low- and moderate-income families across the nation and play a critical role in ensuring the economic security of our nation’s energy supply,” said U.S. Secretary of Energy Jennifer M. Granholm. “This new program reflects the Biden Administration's commitment to improving energy reliability and connecting our nation’s rural communities to resilient energy infrastructure and the transformative benefits that come with it.” 

Nearly one in six Americans live in a remote or rural community. Utilities in these communities face considerable obstacles, including difficulty recruiting top cybersecurity talent, inadequate infrastructure, as the aging U.S. power grid struggles to support new technologies, and lack of financial resources needed to modernize and harden their systems. 

The RMUC Program will provide financial and technical assistance to help rural, municipal, and small investor-owned electric utilities improve operational capabilities, increase access to cybersecurity services, deploy advanced cyber security technologies, and increase participation of eligible entities in cybersecurity threat information sharing programs and coordination with federal partners initiatives. Priority will be given to eligible utilities that have limited cybersecurity resources, are critical to the reliability of the bulk power system, or those that support our national defense infrastructure. 

The Office of Cybersecurity, Energy Security, and Emergency Response (CESER), which advances U.S. energy security objectives, will manage the RMUC Program, providing $250 million dollars in BIL funding over five years. To help inform Program implementation, DOE is seeking input from the cybersecurity community, including eligible utilities and representatives of third parties and organizations that support or interact with these utilities. The RFI seeks input on ways to improve cybersecurity incident preparedness, response, and threat information sharing; cybersecurity workforce challenges; risks associated with technologies deployed on the electric grid; national-scale initiatives to accelerate cybersecurity improvements in these utilities; opportunities to strengthen partnerships and energy security support efforts; the selection criteria and application process for funding awards; and more. 

 

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Turning thermal energy into electricity

Near-Field Thermophotovoltaics captures radiated energy across a nanoscale gap, using thin-film photovoltaic cells and indium gallium arsenide to boost power density and efficiency, enabling compact Army portable power from emitters via radiative heat transfer.

 

Key Points

A nanoscale TPV method capturing near-field photons for higher power density at lower emitter temperatures.

✅ Nanoscale gap boosts radiative transfer and usable photon flux

✅ Thin-film InGaAs cells recycle sub-band-gap photons via reflector

✅ Achieved ~5 kW/m2 power density with higher efficiency

 

With the addition of sensors and enhanced communication tools, providing lightweight, portable power has become even more challenging, with concepts such as power from falling snow illustrating how diverse new energy-harvesting approaches are. Army-funded research demonstrated a new approach to turning thermal energy into electricity that could provide compact and efficient power for Soldiers on future battlefields.

Hot objects radiate light in the form of photons into their surroundings. The emitted photons can be captured by a photovoltaic cell and converted to useful electric energy. This approach to energy conversion is called far-field thermophotovoltaics, or FF-TPVs, and has been under development for many years; however, it suffers from low power density and therefore requires high operating temperatures of the emitter.

The research, conducted at the University of Michigan and published in Nature Communications, demonstrates a new approach, where the separation between the emitter and the photovoltaic cell is reduced to the nanoscale, enabling much greater power output than what is possible with FF-TPVs for the same emitter temperature.

This approach, which enables capture of energy that is otherwise trapped in the near-field of the emitter is called near-field thermophotovoltaics or NF-TPV and uses custom-built photovoltaic cells and emitter designs ideal for near-field operating conditions, alongside emerging smart solar inverters that help manage conversion and delivery.

This technique exhibited a power density almost an order of magnitude higher than that for the best-reported near-field-TPV systems, while also operating at six-times higher efficiency, paving the way for future near-field-TPV applications, including remote microgrid deployments in extreme environments, according to Dr. Edgar Meyhofer, professor of mechanical engineering, University of Michigan.

"The Army uses large amounts of power during deployments and battlefield operations and must be carried by the Soldier or a weight constrained system," said Dr. Mike Waits, U.S. Army Combat Capabilities Development Command's Army Research Laboratory. "If successful, in the future near-field-TPVs could serve as more compact and higher efficiency power sources for Soldiers as these devices can function at lower operating temperatures than conventional TPVs."

The efficiency of a TPV device is characterized by how much of the total energy transfer between the emitter and the photovoltaic cell is used to excite the electron-hole pairs in the photovoltaic cell, where insights from near-light-speed conduction research help contextualize performance limits in semiconductors. While increasing the temperature of the emitter increases the number of photons above the band-gap of the cell, the number of sub band-gap photons that can heat up the photovoltaic cell need to be minimized.

"This was achieved by fabricating thin-film TPV cells with ultra-flat surfaces, and with a metal back reflector," said Dr. Stephen Forrest, professor of electrical and computer engineering, University of Michigan. "The photons above the band-gap of the cell are efficiently absorbed in the micron-thick semiconductor, while those below the band-gap are reflected back to the silicon emitter and recycled."

The team grew thin-film indium gallium arsenide photovoltaic cells on thick semiconductor substrates, and then peeled off the very thin semiconductor active region of the cell and transferred it to a silicon substrate, informing potential interfaces with home battery systems for distributed use.

All these innovations in device design and experimental approach resulted in a novel near-field TPV system that could complement distributed resources in virtual power plants for resilient operations.

"The team has achieved a record ~5 kW/m2 power output, which is an order of magnitude larger than systems previously reported in the literature," said Dr. Pramod Reddy, professor of mechanical engineering, University of Michigan.

Researchers also performed state-of-the-art theoretical calculations to estimate the performance of the photovoltaic cell at each temperature and gap size, informing hybrid designs with backup fuel cell solutions that extend battery life, and showed good agreement between the experiments and computational predictions.

"This current demonstration meets theoretical predictions of radiative heat transfer at the nanoscale, and directly shows the potential for developing future near-field TPV devices for Army applications in power and energy, communication and sensors," said Dr. Pani Varanasi, program manager, DEVCOM ARL that funded this work.

 

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Hydro Quebec to increase hydropower capacity to more than 37,000 MW in 2021

Hydro Quebec transmission expansion aims to move surplus hydroelectric capacity from record reservoirs to the US grid via new interties, increasing exports to New England and New York amid rising winter peak demand.

 

Key Points

A plan to add capacity and intertie links to export surplus hydro power from Quebec's reservoirs to the US grid.

✅ 245 MW added in 2021; portfolio reaches 37,012 MW

✅ Reservoirs at unprecedented levels; export potential high

✅ Lacks US transmission; working on new interties

 

Hydro Quebec plans to add an incremental 245 MW of hydro-electric generation capacity in 2021 to its expansive portfolio in the north of the province, while Quebec authorized nearly 1,000 MW for industrial projects across the region, bringing the total capacity to 37,012 MW, an official said Friday

Quebec`s highest peak demand of 39,240 MW occurred on January 22, 2014.

A little over 75% of Quebec`s population heat their homes with electricity, Sutherland said, aligning with Hydro Quebec's strategy to wean the province off fossil fuels over time.

The province-owned company produced 205.1 TWh of power in 2017 and its net exports were 34.4 TWh that year, while Ontario chose not to renew a power deal in a separate development.

Sutherland said Hydro Quebec`s reservoirs are currently at "unprecedented levels" and the company could export more of its electricity to New England and New York, but faces transmission constraints that limit its ability to do so.

Hydro Quebec is working with US transmission developers, electric distribution companies, independent system operators and state government agencies to expand that transmission capacity in order to delivery more power from its hydro system to the US, Sutherland said.

Separately, NB Power signed three deals to bring more Quebec electricity into the province, reflecting growing regional demand.

The last major intertie connection between Quebec and the US was completed close to 30 years ago. The roughly 2,000 MW capacity transmission line that connects into the Boston area was completed in the late 1990s, according to Hydro Quebec spokeswoman Lynn St-Laurent.

 

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