Electrocution risk from illegal grow ops

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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Muskrat Falls funding deal delivers federal relief to Newfoundland and Labrador: Justin Trudeau outlines loan guarantees, transmission investment, Hibernia royalties, and $10-a-day child care to stabilize hydroelectric costs and curb electricity rate hikes.

Key Points

A $5.2b federal plan aiding NL hydro via loan guarantees, transmission funds, and Hibernia royalties to curb power rates.

✅ $1b for transmission and $1b in federal loan guarantees

✅ $3.2b via Hibernia royalty transfers through 2047

✅ Limits power rate hikes; adds $10-a-day child care in NL

Prime Minister Justin Trudeau was in Newfoundland and Labrador Wednesday to announce a $5.2-billion ratepayer protection plan to help the province cover the costs of a troubled hydroelectric project ahead of an expected federal election call.

Trudeau's visit to St. John's, N.L., wrapped up a two-day tour of Atlantic Canada that featured several major funding commitments, and he concluded his day in Newfoundland and Labrador by announcing the province will become the fourth to strike a deal with Ottawa for a $10-a-day child-care program.

As he addressed reporters, the prime minister was flanked by the six Liberal members of Parliament from the province. He alluded to the mismanagement that led the over-budget Muskrat Falls hydroelectric project to become what Liberal Premier Andrew Furey has called an "anchor around the collective souls" of the province.

"The pressures and challenges faced by Newfoundlanders and Labradorians for mistakes made in the past is something that Canadians all needed to step up on, and that's exactly what we did," Trudeau said.

Furey, who joined Trudeau for the two announcements and was effusive in his praise for the federal government, said the federal funding will help Newfoundland and Labrador avoid a spike in electricity rates as customers start paying for Muskrat Falls ahead of when the project begins generating power this November.

"Muskrat Falls has been the No. 1 issue facing Newfoundlanders and Labradorians now for well over a decade," Furey said, adding that he is regularly asked by people whether their electricity rates are going to double, a concern other provinces address through rate legislation in Ontario as well.

"We landed on a deal today that I think -- I know -- is a big deal for Newfoundland and Labrador and will finally get the muskrat off our back," he said.

The agreement-in-principle between the two governments includes a $1-billion investment from Ottawa in a transmission through Quebec portion of the project, as well as $1 billion in loan guarantees. The rest will come from annual transfers from Ottawa equivalent to its annual royalty gains from its share in the Hibernia offshore oilfield, which sits off the coast of St. John's. Those transfers are expected to add up to about $3.2 billion between now and 2047, when the oilfield is expected to run dry.

The money will help cover costs set to come due when the Labrador project comes online, preventing rate increases that would have been needed to pay the bills, and officials have discussed a lump-sum bill credit to help households. Though electricity rates in the province will still rise, to 14.7 cents per kilowatt hour from the current 12.5 cents, that's well below the projected 23 cents that officials had said would be needed to cover the project's costs.

Muskrat Falls was commissioned in 2012 at a cost of $7.4 billion, but its price tag has since ballooned to $13.1 billion. Ottawa previously backed the project with billions of dollars in loan guarantees, and in December, Trudeau announced he had appointed Serge Dupont, former deputy clerk of the Privy Council, to oversee rate mitigation talks with the province about financially restructuring the project.

Its looming impact on the provincial budget is set against an already grim financial situation: the province projected an $826-million deficit in its latest budget, and a recent financial update from the provincial energy corporation reflected pandemic impacts, coupled with $17.2 billion in net debt.

After visiting with children from a daycare centre in the College of the North Atlantic, Trudeau and Furey announced that in 2023, the average cost of regulated child care in the province for children under six would be cut to $10 a day from $25 a day. Trudeau said that within five years, almost 6,000 new daycare spaces would be created in the province.

"As part of the agreement, a new full-day, year-round pre-kindergarten program for four-year-olds will also start rolling out in 2023," the prime minister told reporters. "For parents, this agreement is huge."

Newfoundland and Labrador is the fourth province, after Prince Edward Island, Nova Scotia and British Columbia, to sign on to the federal government's child-care program.

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Washington EV Rebate Program drives EV adoption with incentives, funding, and clean energy goals, cutting greenhouse gas emissions. Residents embrace electric vehicles as charging infrastructure expands, supporting sustainable transportation and state climate targets.

Key Points

Washington EV Rebate Program provides incentives to cut EV costs, accelerate adoption, and support clean energy targets.

✅ Over half of allocated funding already utilized statewide.

✅ Incentives lower upfront costs and spur EV demand.

✅ Charging infrastructure expansion remains a key priority.

Washington State has reached a significant milestone in its electric vehicle (EV) rebate program, with more than half of the allocated funding already utilized. This rapid uptake highlights the growing interest in electric vehicles as residents seek more sustainable transportation options. As the state continues to prioritize environmental initiatives, this development showcases both the successes and challenges of promoting electric vehicle adoption.

A Growing Demand for Electric Vehicles

The substantial drawdown of rebate funds indicates a robust demand for electric vehicles in Washington. As consumers become increasingly aware of the environmental benefits associated with EVs—such as reduced greenhouse gas emissions and improved air quality—more individuals are making the switch from traditional gasoline-powered vehicles. Additionally, rising fuel prices and advancements in EV technology, alongside zero-emission incentives are further incentivizing this shift.

Washington's rebate program, which offers financial incentives to residents who purchase or lease eligible electric vehicles, plays a critical role in making EVs more accessible. The program helps to lower the upfront costs associated with purchasing electric vehicles, and similar approaches like New Brunswick EV rebates illustrate how regional incentives can boost adoption, thus encouraging more drivers to consider these greener alternatives. As the state moves toward its goal of a more sustainable transportation system, the popularity of the rebate program is a promising sign.

The Impact of Funding Utilization

With over half of the rebate funding already used, the program's popularity raises questions about the sustainability of its financial support and the readiness of state power grids to accommodate rising EV demand. Originally designed to spur adoption and reduce barriers to entry for potential EV buyers, the rapid depletion of funds could lead to future challenges in maintaining the program’s momentum.

The Washington State Department of Ecology, which oversees the rebate program, will need to assess the current funding levels and consider future allocations to meet the ongoing demand. If the funds run dry, it could slow down the adoption of electric vehicles, potentially impacting the state’s broader climate goals. Ensuring a consistent flow of funding will be essential for keeping the program viable and continuing to promote EV usage.

Environmental Benefits and Climate Goals

The increasing adoption of electric vehicles aligns with Washington’s ambitious climate goals, including a commitment to reduce carbon emissions significantly by 2030. The state aims to transition to a clean energy economy and has set a target for all new vehicles sold by 2035 to be electric, and initiatives such as the hybrid-electric ferry upgrade demonstrate progress across the transportation sector. The success of the rebate program is a crucial step in achieving these objectives.

As more residents switch to EVs, the overall impact on air quality and carbon emissions can be profound. Electric vehicles produce zero tailpipe emissions, which contributes to improved air quality, particularly in urban areas that struggle with pollution. The transition to electric vehicles can also help to reduce dependence on fossil fuels, further enhancing the state’s sustainability efforts.

Challenges Ahead

While the current uptake of the rebate program is encouraging, there are challenges that need to be addressed. One significant issue is the availability of EV models. Although the market is expanding, not all consumers have equal access to a variety of electric vehicle options. Affordability remains a barrier for many potential buyers, especially in lower-income communities, but targeted supports like EV charger rebates in B.C. can ease costs for households. Ensuring that all residents can access EVs and the associated incentives is vital for equitable participation in the transition to electric mobility.

Additionally, there are concerns about charging infrastructure. For many potential EV owners, the lack of accessible charging stations can deter them from making the switch. Expanding charging networks, particularly in underserved areas, is essential for supporting the growing number of electric vehicles on the road, and B.C. EV charging expansion offers a regional model for scaling access.

Looking to the Future

As Washington continues to advance its electric vehicle initiatives, the success of the rebate program is a promising indication of changing consumer attitudes toward sustainable transportation. With more than half of the funding already used, the focus will need to shift to sustaining the program and ensuring that it meets the needs of all residents, while complementary incentives like home and workplace charging rebates can amplify its impact.

Ultimately, Washington’s commitment to electric vehicles is not just about rebates; it’s about fostering a comprehensive ecosystem that supports clean energy, infrastructure, and equitable access. By addressing these challenges head-on, the state can continue to lead the way in the transition to electric mobility, benefiting both the environment and its residents in the long run.

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UK Market Stability Outlook remains febrile as the Bank of England, Treasury, and OBR forecasts shape fiscal policy, interest rates, gilt yields, inflation, energy bills, and pound sterling, with Oct. 31 guidance to reassure investors.

Key Points

A view of investor confidence as BOE policy, fiscal plans, and energy aid shape inflation and interest rates.

✅ Markets await Oct. 31 fiscal statement and OBR projections

✅ Energy support design drives inflation and disposable income

✅ Pound weakness adds imported inflation; rates seen up 75 bps

Bank of England Deputy Governor Dave Ramsden said financial markets are still unsettled about the outlook for the UK and that a Treasury statement due on Oct. 31 may provide some reassurance.

Speaking to the Treasury Committee in Parliament, Ramsden said officials in government and the central bank are dealing with huge economic shocks, notably the surge in energy prices that came with Russia’s attack on Ukraine. Investors are reassessing where interest rates and the fiscal stance are headed.

“Markets remain quite febrile,” Ramsden told members of Parliament in London on Monday. “Things have not settled down yet.”

He described the events following Prime Minister Liz Truss’s ill-fated fiscal statement on Sept. 23, which set out a series of tax cuts funded by borrowing that spooked investors and triggered a rout in UK assets. Ramsden said those events damaged the UK’s credibility among investors, but reversing that program and Truss’s decision to step aside have helped the nation regain confidence.

“Credibility is hard won and easily lost,” Ramsden said. “That credibility is being recovered. That has to be followed through. A return to the kind of stability around policy making and around the framing of fiscal events will be really important.”

He said the issue with the Sept. 23 statement was that “it had one side of the fiscal arithmetic in it” and that the decision to include forecasts from the Office for Budget Responsibility will help underpin the confidence investors have in assessing the UK budget due out next week, including potential moves to end the link between gas and electricity prices for consumers.

“What we are going to get on Oct. 31 will be very important,” Ramsden said, “as it will address measures such as the price cap on household energy bills and other fiscal choices.”

“My sense is that will take account of all the statements on both the revenue and on the spending side.”

The central bank already was getting some information from Chancellor of the Exchequer Jeremy Hunt’s team about the fiscal statement due. Hunt said last week he’d curtail government plans to subsidize household fuel bills in April, when a 16% decrease in energy bills is anticipated, instead of letting it run as long as planned and replace it with a more targeted program. 

“To the extent possible, we will obviously have a little bit of time to take account of that before we make our decisions later next week,” Ramsden said.

With Truss stepping down in the next day and handing power to Rishi Sunak, it isn’t certain the Oct. 31 statement will go ahead as planned. Ramsden’s remarks confirm reports that Hunt is preparing to make the statement, amid a free electricity debate in the industry, even before Sunak names his team.

Any hint about what sort of package Hunt will offer on energy is crucial to the BOE’s forecasts. Without aid for energy, consumers will be exposed to high winter heating and electricity costs and to the full force of whatever happens in natural gas and electricity markets, and that will have a big impact on how much disposable income is available to households.

The energy plan, alongside the energy security bill, “will be a key element, as obviously it will have a bearing on the path for inflation, which is critical, but also how much additional support relative to what we were assuming at the time of the September MPC there will be for households at different points in the income distribution,” Ramsden added.

Investors currently expect the BOE to hike rates by 75 basis points next week.

Ramsden also said the BOE is watching the pound’s decline to assess how that changes the outlook for inflation.

“We have to take account of it,” Ramsden said. “When sterling deprreciaties that feeds through to imported inflation. It’s fallen quite significantly. The overall trend is down.”

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BC Hydro COVID-19 Bill Relief offers pandemic support with bill credits, rate cuts, and deferred payments for residential, small business, and industrial customers across B.C., easing utilities costs during COVID-19 economic hardship.

Key Points

COVID-19 bill credits, a rate cut, and deferred payments for eligible B.C. homes, small businesses, and industrial customers.

✅ Non-repayable credits equal to 3 months of average bills.

✅ Small businesses closed can skip bills for three months.

✅ Large industry may defer 50% of electricity costs.

B.C. residents who have lost their jobs or had their wages cut will get a three-month break on BC Hydro bills, while small businesses, amid commercial consumption plummets during COVID-19, are also eligible to apply for similar relief.

Premier John Horgan said Wednesday the credit for residential customers will be three times a household’s average monthly bill over the past year and does not have to be repaid as part of the government’s support package during the COVID-19 pandemic, as BC Hydro demand down 10% highlights the wider market pressures.

He said small businesses that are closed will not have to pay their power bills for three months, and in Ontario an Ontario COVID-19 hydro rebate complemented similar relief, and large industrial customers, including those operating mines and pulp mills, can opt to have 50 per cent of their electricity costs deferred, though a deferred costs report warned of long-term liabilities.

BC Hydro rates will be cut for all customers by one per cent as of April 1, a move similar to Ontario 2021 rate reductions that manufacturers supported lower rates at the time, after the B.C. Utilities Commission provided interim approval of an application the utility submitted last August.

Eligible residential customers can apply for bill relief starting next week and small business applications will be accepted as of April 14, while staying alert to BC Hydro scam attempts during this period, with the deadline for both categories set at June 30.

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Germany Hydrogen Import Strategy outlines reliance on green hydrogen imports, expanded electrolysis capacity, IPCEI-funded pipelines, and industrial decarbonization for steel and chemicals to reach climate-neutral goals by 2045, meeting 2030 demand of 95-130 TWh.

Key Points

A plan to import 50-70% of hydrogen by 2030, backing green hydrogen, electrolysis, pipelines, and decarbonization.

✅ Imports cover 50-70% of 2030 hydrogen demand

✅ 10 GW electrolysis target with state aid and IPCEI

✅ 1,800 km H2 pipelines to link hubs by 2030

Germany will have to import up to 70% of its hydrogen demand in the future as Europe's largest economy aims to become climate-neutral by 2045, an updated government strategy published on Wednesday showed.

The German cabinet approved a new hydrogen strategy, setting guidelines for hydrogen production, transport infrastructure and market plans.

Germany is seeking to expand reliance on hydrogen as a future energy source to bolster energy resilience and cut greenhouse emissions for highly polluting industrial sectors that cannot be electrified such as steel and chemicals and cut dependency on imported fossil fuel.

Produced using solar and wind power, green hydrogen is a pillar of Berlin's plan to build a sustainable electric planet and transition away from fossil fuels.

But even with doubling the country's domestic electrolysis capacity target for 2030 to at least 10 gigawatts (GW), Germany will need to import around 50% to 70% of its hydrogen demand, forecast at 95 to 130 TWh in 2030, the strategy showed.

"A domestic supply that fully covers demand does not make economic sense or serve the transformation processes resulting from the energy transition and the broader global energy transition overall," the document said.

The strategy underscores the importance of diversifying future hydrogen sources, including potential partners such as Canada's clean hydrogen sector, but the government is working on a separate strategy for hydrogen imports whose exact date is not clear, a spokesperson for the economy ministry said.

"Instead of relying on domestic potential for the production of green hydrogen, the federal government's strategy is primarily aimed at imports by ship," Simone Peter, the head of Germany's renewable energy association, said.

Under the strategy, state aid is expected to be approved for around 2.5 GW of electrolysis projects in Germany this year and the government will earmark 700 million euros ($775 million) for hydrogen research to optimise production methods, research minister Bettina Stark-Watzinger said.

But Germany's limited renewable energy space will make it heavily dependent on imported hydrogen from emerging export hubs such as Abu Dhabi hydrogen exports gaining scale, experts say.

"Germany is a densely populated country. We simply need space for wind and photovoltaic to be able to produce the hydrogen," Philipp Heilmaier, an energy transition researcher at Germany energy agency, told Reuters.

The strategy allows the usage of hydrogen produced through fossil energy sources preferably if the carbon is split off, but said direct government subsidies would be limited to green hydrogen.

Funds for launching a hydrogen network with more than 1,800 km of pipelines in Germany are expected to flow by 2027/2028 through the bloc's Important Projects of Common European Interest (IPCEI) financing scheme, as the EU plans to double electricity use by 2050 could raise future demand, with the goal of connecting all major generation, import and storage centres to customers by 2030.

Transport Minister Volker Wissing said his ministry was working on plans for a network of hydrogen filling stations and for renewable fuel subsidies.

Environmental groups said the strategy lacked binding sustainability criteria and restriction on using hydrogen for sectors that cannot be electrified instead of using it for private heating or in cars, calling for a plan to eventually phase-out blue hydrogen which is produced from natural gas.

Germany has already signed several hydrogen cooperation agreements with countries such as clean energy partnership with Canada and Norway, United Arab Emirates and Australia.

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