This Thin-Film Turns Heat Waste From Electronics Into Electricity


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Pyroelectric Energy Harvesting captures low-grade heat via thin-film materials, converting temperature fluctuations into power for waste heat recovery in electronics, vehicles, and industrial machinery, offering a thermoelectric alternative for microelectronics and exascale systems.

 

Key Points

Thin-film pyroelectric harvesting turns temperature changes into electricity, enabling low-grade waste heat recovery.

✅ Converts low-grade heat fluctuations into usable power

✅ Thin-film design suits microelectronics and edge devices

✅ Alternative to thermoelectrics for waste heat recovery

 

The electronic device you are reading this on is currently producing a modest to significant amount of waste heat that emerging thermoelectric materials could help recover in principle. In fact, nearly 70% of the energy produced annually in the US is ultimately wasted as heat, much of it less than 100 degrees Celsius. The main culprits are computers and other electronic devices, vehicles, as well as industrial machinery. Heat waste is also a big problem for supercomputers, because as more circuitry is condensed into smaller and smaller areas, the hotter those microcircuits get.

It’s also been estimated that a single next-generation exascale supercomputer could feasibly use up to 10% of the energy output of just one coal-fired power station, and that nearly all of that energy would ultimately be wasted as heat.

What if it were possible to convert that heat energy into a useable energy source, and even to generate electricity at night from temperature differences as well?

#google#

It’s not a new idea, of course. In fact the possibility of thermoelectric energy generation, where thermal energy is turned into electricity was recognised as early as 1821, around the same time that Michael Faraday developed the electric motor.

Unfortunately, when the heat source is ‘low grade’, aka less than 100 degrees Celsius, a number of limitations arise, and related approaches for nighttime renewable generation face similar challenges as well. For it to work well, you need materials that have quite high electrical conductivity, but low thermal conductivity. It’s not an easy combination to come by.

Taking a different approach, researchers at the University of California, Berkeley, have developed thin-film that uses pyroelectric harvesting to capture heat-waste and convert heat to electricity in prototype demonstrations. The findings were published today in Nature Materials.

 

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California's Looming Green New Car Wreck

California Gas Car Ban 2035 signals a shift to electric vehicles, raising grid reliability concerns, charging demand, and renewable energy challenges across solar, wind, and storage, amid rolling blackouts and carbon-free power mandates.

 

Key Points

An order ending new gasoline car sales by 2035 in California, accelerating EV adoption and pressuring the power grid.

✅ 25% EV fleet could add 232.5 GWh/day charging demand by 2040

✅ Solar and wind intermittency strains nighttime home charging

✅ Grid upgrades, storage, and load management become critical

 

On September 23, California Gov. Gavin Newsom issued an executive order that will ban the sale of gasoline-powered cars in the Golden State by 2035. Ignoring the hard lessons of this past summer, when California’s solar- and wind-reliant electric grid underwent rolling blackouts, Newsom now adds a huge new burden to the grid in the form of electric vehicle charging, underscoring the need for a much bigger grid to meet demand. If California officials follow through and enforce Newsom’s order, the result will be a green new car version of a train wreck.

In parallel, the state is moving on fleet transitions, allowing electric school buses only from 2035, which further adds to charging demand.

Let’s run some numbers. According to Statista, there are more than 15 million vehicles registered in California. Per the U.S. Department of Energy, there are only 256,000 electric vehicles registered in the state—just 1.7 percent of all vehicles, a share that will challenge state power grids as adoption grows.

Using the Tesla Model3 mid-range model as a baseline for an electric car, you’ll need to use about 62 kilowatt-hours (KWh) of power to charge a standard range Model 3 battery to full capacity. It will take about eight hours to fully charge it at home using the standard Tesla NEMA 14-50 charger, a routine that has prompted questions about whether EVs could crash the grid by households statewide.

Now, let’s assume that by 2040, five years after the mandate takes effect, also assuming no major increase in the number of total vehicles, California manages to increase the number of electric vehicles to 25 percent of the total vehicles in the state. If each vehicle needs an average of 62 kilowatt-hours for a full charge, then the total charging power required daily would be 3,750,000 x 62 KWh, which equals 232,500,000 KWh, or 232.5 gigawatt-hours (GWh) daily.

Utility-scale California solar electric generation according to the energy.ca.gov puts utility-scale solar generation at about 30,000 GWh per year currently. Divide that by 365 days and we get 80 GWh/day, predicted to double, to 160 GWh /day. Even if we add homeowner rooftop solar, and falling prices for solar and home batteries in the wake of blackouts, about half the utility-scale, at 40 GWh/day we come up to 200 GW/h per day, still 32 GWh short of the charging demand for a 25% electric car fleet in California. Even if rooftop solar doubles by 2040, we are at break-even, with 240GWh of production during the day.

Bottom-line, under the most optimistic best-case scenario, where solar operates at 100% of rated capacity (it seldom does), it would take every single bit of the 2040 utility-scale solar and rooftop capacity just to charge the cars during the day. That leaves nothing left for air conditioning, appliances, lighting, etc. It would all go to charging the cars, and that’s during the day when solar production peaks.

But there’s a much bigger problem. Even a grade-schooler can figure out that solar energy doesn’t work at night, when most electric vehicles will be charging at homes, even as some officials look to EVs for grid stability through vehicle-to-grid strategies. So, where does Newsom think all this extra electric power is going to come from?

The wind? Wind power lags even further behind solar power. According to energy.gov, as of 2019, California had installed just 5.9 gigawatts of wind power generating capacity. This is because you need large amounts of land for wind farms, and not every place is suitable for high-return wind power.

In 2040, to keep the lights on with 25 percent of all vehicles in California being electric, while maintaining the state mandate requiring all the state’s electricity to come from carbon-free resources by 2045, California would have to blanket the entire state with solar and wind farms. It’s an impossible scenario. And the problem of intermittent power and rolling blackouts would become much worse.

And it isn’t just me saying this. The U.S. Environmental Protection Agency (EPA) agrees. In a letter sent by EPA Administrator Andrew Wheeler to Gavin Newsom on September 28, Wheeler wrote:

“[It] begs the question of how you expect to run an electric car fleet that will come with significant increases in electricity demand, when you can’t even keep the lights on today.

“The truth is that if the state were driving 100 percent electric vehicles today, the state would be dealing with even worse power shortages than the ones that have already caused a series of otherwise preventable environmental and public health consequences.”


California’s green new car wreck looms large on the horizon. Worse, can you imagine electric car owners’ nightmares when California power companies shut off the power for safety reasons during fire season? Try evacuating in your electric car when it has a dead battery.

Gavin Newsom’s “no more gasoline cars sold by 2035” edict isn’t practical, sustainable, or sensible, much like the 2035 EV mandate in Canada has been criticized by some observers. But isn’t that what we’ve come to expect with any and all of these Green New Deal-lite schemes?

 

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Translation: Wind energy at sea in Europe

Nature-friendly offshore wind energy supports climate neutrality by reducing greenhouse gases while safeguarding marine biodiversity through EU marine spatial planning, ecosystem-based approaches, cross-border coordination, and zero-use zones for resilient seas.

 

Key Points

An approach to offshore wind that cuts emissions while respecting ecological limits and protecting marine biodiversity.

✅ Aligns buildout with ecological limits and marine spatial plans

✅ Minimizes noise, collision, and habitat loss for sensitive species

✅ Coordinates EU-wide monitoring, data, and cross-border siting

 

Offshore wind power can help reduce greenhouse gas emissions, but it poses risks for the seas. Germany will hold the EU Council Presidency and the North Sea Energy Cooperation Presidency in 2020. What must be done to contain the climate and species crises, as it were?

Offshore wind power is an important regenerative energy source with a $1 trillion market outlook in the coming decades. However, the construction, operation and maintenance of the systems put marine mammals, birds and fish at considerable risk. Photo: Siemens AG

In order to achieve the German and EU climate and energy goals by 2030 and climate neutrality by 2050, we need a nature-friendly energy transition. At present, the European energy system is largely based on fossil fuels. This is changing, as renewables surge across Europe for end consumers and industry and the large-scale electrification of the energy consumption sectors. Offshore wind energy is an element for future power generation.

A nature-friendly energy transition is only possible if energy consumption is reduced and energy efficiency is maximized in all applications and sectors. Emissions reductions through offshore wind energy In 2019, Europe had an installed offshore wind energy capacity of around 22 gigawatts from 5,047 grid-connected wind turbines in twelve countries. In Germany, the nominal output of the offshore wind turbines feeding into the German power grid was around 7.5 gigawatts, with clean energy accounting for about 50% of electricity nationwide. The wind blows much stronger and more steadily at sea than on land.

The power capacity of the turbines has also almost doubled in the last five years, which has led to a higher energy yield. Offshore wind energy is a building block for replacing fossil fuels, and markets like the U.S. offshore sector are about to soar as well. Wind turbines at sea provide electricity almost every hour of the year and have operating hours that are as high as conventional power plants. They can contribute to significant reductions in CO2 emissions and to mitigate the climate crisis.

It must be ensured that offshore wind turbines and parks as well as the grid infrastructure make a positive contribution to climate protection through their expansion and that the overall condition of marine ecosystems improves. The expansion of offshore wind energy is necessary from the point of view of climate science and must take place within the framework of the ecological load limits and under nature conservation aspects.

Seas and marine ecosystems suffer from years of overfishing, pollution and industrial use. The conservation status of sea birds, marine mammals and fish stocks is poor. Ecosystem services and productivity of the oceans are decreasing as a result of massive species extinction and unfavorable habitats. Changes in sea temperature, oxygen levels and acidification of the oceans reduce their resilience to the climate crisis.

The latest reports from the European Environment Agency show in black and white that the good environmental status and other goals of the Marine Strategy Framework Directive are not being achieved. The primary goal must therefore be to meet the obligations of the Marine Strategy Framework Directive and the EU nature conservation directives.

With the expansion of offshore wind energy, the pressure on the already polluted marine ecosystems is increasing. Offshore wind turbines also harbor risks for marine ecosystems, especially if they are built in unfavorable locations. Studies show harmful effects on marine mammals, birds, fish and the ocean floor. In Europe, where wind power investments hit $29.4 billion last year, a regulatory framework must be created for the expansion of offshore wind energy within the ecological limits and taking into account zero-use zones. The European Union urgently needs to take coherent measures for healthy and resilient seas.

New strategy of the European Commission The EU Commission plans to present a strategy for the expansion of renewable energies at sea on November 18, 2020.

The strategy will address the opportunities and challenges associated with the expansion of renewable energies at sea, such as effects on energy networks and markets, management of the maritime space, the technological transfer of research projects, regional and international cooperation and industrial policy dimensions, as well as political headwinds in some countries that can affect project pipelines. NABU welcomes the strategy, but worries about insufficient consideration of marine protection, ecological load-bearing capacity and the marine spatial planning that regulates interests in the use of the sea. All EU member states have to submit their marine spatial planning plans by March 2021.

Conclusions of the European Council Shortly before the end of 2020, the European Council plans to adopt conclusions for cooperation among European member states on the subject of offshore wind energy and other renewable energy sources at sea. It is important that the planning and development of offshore wind energy is coordinated across national borders, including alignment with the UK's offshore wind growth, also to protect marine ecosystems.

However, the ecosystem approach must not be left out. It must be ensured that the Council conclusions focus on the implementation of EU marine and nature conservation directives for the expansion of offshore wind energy within the load limits. EU-wide monitoring systems can help protect marine species and ecosystems. Germany holds the EU Council Presidency and the North Sea Energy Cooperation Presidency for 2020 and can make a decisive contribution.

NABU demands on offshore wind energy in Europe Expansion targets for offshore wind energy across Europe should be based on the ecological load limits of the seas. Development of concrete concepts for the ecological upgrading of areas in marine spatial planning and operationalization of the ecosystem-based approach.

For the nature-friendly expansion of offshore – Wind energy systems must take into account avoidance distances from seabirds to turbines, habitat loss, collision risks and cumulative effects. Implementation / obligation to sensitivity analyzes – they allow targeted conclusions about the best possible locations for offshore wind energy without conflicts with marine protection.

Targeted keeping of areas free for species and their Habitats of anthropogenic use – this increases planning security and can lower investment thresholds for EU funding programs. Ensuring regional cooperation between the European member states for nature Protection and with the involvement of nature conservation authorities – after all, the marine ecosystem does not stop at borders.

Adjustment of priorities: If offshore wind energy is prioritized over other renewable energy sources across Europe, other industrial forms of use of the seas must be given a lower priority.

 

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More Electricity From Wind & Solar Than Nuclear For 1st Time In USA

U.S. Renewable Energy Share 2022 leads electricity generation trends, as wind and solar outpace nuclear and coal, per EIA data, with hydropower gains and grid growth highlighting rapid, sustainable capacity expansion nationwide.

 

Key Points

Renewables supplied over 25% of U.S. electricity in 2022, as wind and solar outpaced nuclear with double-digit growth.

✅ Renewables provided 25.52% of U.S. power Jan-Apr 2022.

✅ Wind and solar beat nuclear by 17.96% in April.

✅ Solar up 28.93%, wind up 24.25%; hydropower up 9.99%.

 

During the first four months of 2022, electrical generation by renewable energy sources accounted for over 25% of the nation’s electricity, projected to soon be about one-fourth as growth continues. In April alone, renewables hit a record April share of 29.3% — an all-time high.

And for the first time ever, the combination of just wind power and solar produce more electricity in April than the nation’s nuclear power plants — 17.96% more.

This is according to a SUN DAY Campaign analysis of data in EIA’s Electric Power Monthly report. The report also reveals that during the first third of this year, solar (including residential) generation climbed by 28.93%, while wind increased by 24.25%. Combined, solar and wind grew by 25.46% and accounted for more than one-sixth (16.67%) of U.S. electrical generation (wind: 12.24%, solar: 4.43%).

Hydropower also increased by 9.99% during the first four months of 2022. However, wind alone provided 70.89% more electricity than did hydropower. Together with contributions from geothermal and biomass, the mix of renewable energy sources expanded by 18.49%, and building on its second-most U.S. source in 2020 status helped underscore momentum as it provided about 25.5% of U.S. electricity during the first four months of 2022.

For the first third of the year, renewables surpassed coal and nuclear power by 26.13% and 37.80% respectively. In fact, electrical generation by coal declined by 3.94% compared to the same period in 2021 while nuclear dropped by 1.80%.

“Notwithstanding headwinds such as the COVID pandemic, grid access problems, and disruptions in global supply chains, solar and wind remain on a roll,” noted the SUN DAY Campaign’s executive director Ken Bossong. “Moreover, by surpassing nuclear power by ever greater margins, they illustrate the foolishness of trying to revive the soon-to-retire Diablo Canyon nuclear plant in California and the just-retired Palisades reactor in Michigan rather than focusing on accelerating renewables’ growth.”

 

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BWE - Wind power potential even higher than expected

German Wind Power 2030 Outlook highlights onshore and offshore growth, repowering, higher full-load hours, and efficiency gains. Deutsche WindGuard, BWE, and LEE NRW project 200+ TWh, potentially 500 TWh, covering rising electricity demand.

 

Key Points

Forecast: efficiency and full-load gains could double onshore wind to 200+ TWh; added land could lift output to 500 TWh.

✅ Modern turbines and repowering boost full-load hours and yields

✅ Onshore generation could hit 200+ TWh on existing areas by 2030

✅ Expanding land to 2% may enable 500 TWh; offshore adds more

 

Wind turbines have become more and more efficient over the past two decades, a trend reflected in Denmark's new green record for wind-powered generation.

A new study by Deutsche WindGuard calculates the effect on the actual generation volumes for the first time, underscoring Germany's energy transition balancing act as targets scale. Conclusion of the analysis: The technical progress enables a doubling of the wind power generation by 2030.

Progressive technological developments make wind turbines more powerful and also enable more and more full-load hours, with wind leading the power mix in many markets today. This means that more electricity can be generated continuously than previously assumed. This is shown by a new study by Deutsche WindGuard, which was commissioned by the Federal Wind Energy Association (BWE) and the State Association of Renewable Energies NRW (LEE NRW).

The study 'Full load hours of wind turbines on land - development, influences, effects' describes in detail for the first time the effects of advances in wind energy technology on the actual generation volumes. It can thus serve as the basis for further calculations and potential assessments, reflecting milestones like UK wind surpassing coal in 2016 in broader analyses.

The results of the investigation show that the use of modern wind turbines with higher full load hours alone on the previously designated areas could double wind power generation to over 200 terawatt hours (TWh) by 2030. With an additional area designation, generation could even be increased to 500 TWh. If the electricity from offshore wind energy is added, the entire German electricity consumption from wind energy could theoretically be covered, and renewables recently outdelivered coal and nuclear in Germany as a sign of momentum: The current electricity consumption in Germany is currently a good 530 TWh, but will increase in the future.

Christian Mildenberger, Managing Director of LEE NRW: 'Wind can do much more: In the past 20 years, technology has made great leaps and bounds. Modern wind turbines produce around ten times as much electricity today as those built at the turn of the millennium. This must also be better reflected in potential studies by the federal and state governments. '

Wolfram Axthelm, BWE Managing Director: 'We need a new look at the existing areas and the repowering. Today in Germany not even one percent of the area is designated for wind energy inland. But even with this we could cover almost 40 percent of the electricity demand by 2030. If this area share were increased to only 2 percent of the federal area, it would be almost 100 percent of the electricity demand! Wind energy is indispensable for a CO2-neutral future. This requires a clever provision of space in all federal states. '

Dr. Dennis Kruse, Managing Director of Deutsche WindGuard: 'It turns out that the potential of onshore wind energy in Germany is still significantly underestimated. Modern wind turbines achieve a significantly higher number of full load hours than previously assumed. That means: The wind can be used more and more efficiently and deliver more income. '

On the areas already designated today, numerous older systems will be replaced by modern ones by 2030 (repowering). However, many old systems will still be in operation. According to Windguard's calculations, the remaining existing systems, together with around 12,500 new, modern wind systems, could generate 212 TWh in 2030. If the area backdrop were expanded from 0.9 percent today to 2 percent of the land area, around 500 TWh would be generated by inland wind, despite grid expansion challenges in Europe that shape deployment.

The ongoing technological development must also be taken into account. The manufacturers of wind turbines are currently working on a new class of turbines with an output of over seven megawatts that will be available in three to five years. According to calculations by the LEE NRW, by 2040 the same number of wind turbines as today could produce over 700 TWh of electricity inland. The electricity demand, which will increase in the future due to electromobility, heat pumps and the production of green hydrogen, can thus be completely covered by a combination of onshore wind, offshore wind, solar power, bioenergy, hydropower and geothermal energy, and a net-zero roadmap for Germany points to significant cost reductions.

 

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Prairie Provinces to lead Canada in renewable energy growth

Canada Renewable Power sees Prairie Provinces surge as Canada Energy Regulator projects rising wind, solar, and hydro capacity in Alberta, Saskatchewan, and Manitoba, replacing coal, expanding the grid, and lowering emissions through 2023.

 

Key Points

A CER outlook on Canada's grid: Prairie wind, solar, and hydro growth replacing coal and cutting emissions by 2023.

✅ Prairie wind, solar capacity surge by 2023

✅ Alberta, Saskatchewan shift from coal to renewables, gas

✅ Manitoba strengthens hydro leadership, low-carbon grid

 

Canada's Prairie Provinces will lead the country's growth in renewable energy capacity over the next three years, says a new report by the Canada Energy Regulator (CER).

The online report, titled Canada's Renewable Power, says decreased reliance on coal and substantial increases in wind and solar capacity will increase the amount of renewable energy added to the grid in Alberta and Saskatchewan. Meanwhile, Manitoba will strengthen its position as a prominent hydro producer in Canada. The pace of overall renewable energy growth is expected to slow at the national level between 2021 and 2023, in part due to lagging solar demand in some markets, but with strong growth in provinces with a large reliance on fossil fuel generation.

The report explores electricity generation in Canada and provides a short-term outlook for renewable electricity capacity in each province and territory to 2023. It also features a series of interactive visuals that allow for comparison between regions and highlights the diversity of electricity sources across Canada.

Electricity generation from renewable sources is expected to continue increasing as demand for electricity grows and the country continues its transition to a lower-carbon economy. Canada will see gradual declines in overall carbon emissions from electricity generation largely due to Saskatchewan, Alberta, Nova Scotia and New Brunswick replacing coal with renewables and natural gas. The pace of growth beyond 2023 in renewable power will depend on technological developments; consumer preferences; and government policies and programs.

Canada is a world leader in renewable power, generating almost two-thirds of its electricity from renewables with hydro as the dominant source, and the country ranks in the top 10 for hydropower jobs worldwide. Canada also has one of the world's lowest carbon intensities for electricity.

The CER produces neutral and fact-based energy analysis to inform the energy conversation in Canada. This report is part of a portfolio of publications on energy supply, demand and infrastructure that the CER publishes regularly as part of its ongoing market monitoring.

Report highlights

  • Wind capacity in Saskatchewan is projected to triple and nearly double in Alberta between 2020 and 2023 as wind power becomes more competitive in the market. Significant solar capacity growth is also projected, with Alberta adding 1,200 MW by 2023, as Canada approaches a 5 GW solar milestone by that time.
  • In Alberta, the share of renewables in the capacity mix is expected to increase from 16% in 2017 to 26% by 2023, with a renewable energy surge supporting thousands of jobs. Similarly, Saskatchewan's renewable share of capacity is expected to increase from 25% in 2018 to 33% in 2023.
  • Renewable capacity growth slows most notably in Ontario, where policy changes have scaled back growth projections. Between 2010 and 2017, renewable capacity grew 6.8% per year. Between 2018 and 2023, growth in Ontario slows to 0.4% per year as capacity grows by 466 MW over this period.
  • New large-scale hydro, wind, and solar projects will push the share of renewables in Canada's electricity mix from 67% of installed capacity in 2017 to 71% in 2023.
  • Hydro is the dominant source of electricity in Canada accounting for 55% of total installed capacity and 59% of generation, though Alberta's limited hydro stands as a notable exception, with B.C., Manitoba, Quebec, Newfoundland and Labrador, and Yukon deriving more than 90% of their power from hydro.
  • The jurisdictions with the highest percentage of non-hydro renewable electricity generation are PEI (100%), Nova Scotia (15.8%), and Ontario (10.5%).
  • In 2010, 62.8% of Canada's total electricity generation (364 681 GW‧h) was from renewable sources. By 2018, 66.2% (425 722 GW‧h) was from renewable sources and projected to be 71.0% by 2023.

 

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The government's 2035 electric vehicle mandate is delusional

Canada 2035 Zero-Emission Vehicle Mandate sets EV sales targets, raising concerns over affordability, battery materials like lithium and copper, charging infrastructure, grid capacity, renewable energy mix, and policy impacts across provinces.

 

Key Points

Mandate makes all new light-duty vehicles zero-emission by 2035, affecting costs, charging, and electric grid planning.

✅ 100% ZEV sales target for cars, SUVs, light trucks by 2035

✅ Cost pressures from lithium, copper, nickel; EVs remain pricey

✅ Grid, charging build-out needed; impacts vary by provincial mix

 

Whether or not you want one, can afford one or think they will do essentially nothing to stop global warming, electric vehicles are coming to Canada en masse. This week, the Canadian government set 2035 as the “mandatory target” for the sale of zero-emission SUVs and light-duty trucks as part of ambitious EV goals announced by Ottawa.

That means the sale of gasoline and diesel cars has to stop by then. Transport Minister Omar Alghabra called the target “a must.” The previous target was 2040.

It is a highly aspirational plan that verges on the delusional according to skeptics of an EV revolution who argue its scale is overstated, even if it earns Canada – a perennial laggard on the emission-reduction front – a few points at climate conferences. Herewith, a few reasons why the plan may be unworkable, unfair or less green than advertised.

Liberals say by 2035 all new cars, light-duty trucks sold in Canada will be electric, as Ottawa develops EV sales regulations to implement the mandate.

Parkland to roll out electric-vehicle charging network in B.C. and Alberta

Sticker shock: There is a reason why EVs remain niche products in almost every market in the world (the notable exception is in wealthy Norway): They are bloody expensive and often in short supply in many markets. Unless EV prices drop dramatically in the next decade, Ottawa’s announcement will price the poor out of the car market. Transportation costs are a big issue with the unrich. The 2018 gilets jaunes mass protests in France were triggered by rising fuel costs.

While some EVs are getting cheaper, even the least expensive ones are about double the price of a comparable product with an internal combustion engine. Most EVs are luxury items. The market leader in Canada and the United States is Tesla. In Canada the cheapest Tesla, the Model 3 (“standard range plus” version), costs $49,000 before adding options and subtracting any government purchase incentives. A high-end Model S can set you back $170,000.

To be sure, prices will come down as production volumes increase. But the price decline might be slow for the simple reason that the cost of all the materials needed to make an EV – copper, cobalt, lithium, nickel among them – is climbing sharply and may keep climbing as production increases, straining supply lines.

Lithium prices have doubled since November. Copper has almost doubled in the past year. An EV contains five times more copper than a regular car. Glencore, one of the biggest mining companies, estimated that copper production needs to increase by a million tonnes a year until 2050 to meet the rising demand for EVs and wind turbines, a daunting task given the dearth of new mining projects.

Will EVs be as cheap as gas cars in a decade or so? Impossible to say, but given the recent price trends for raw materials, probably not.

Not so green: There is no such thing as a zero-emission vehicle, even if that’s the label used by governments to describe battery-powered cars. So think twice if you are buying an EV purely to paint yourself green, as research finds they are not a silver bullet for climate change.

In regions in Canada and elsewhere in the world that produce a lot of electricity from fossil-fuel plants, driving an EV merely shifts the output of greenhouse gases and pollutants from the vehicle itself to the generating plant (according to recent estimates, about 18% of Canada’s electricity comes from coal, natural gas and oil; in the United States, 60 per cent).

An EV might make sense in Quebec, where almost all the electricity comes from renewable sources and policymakers push EV dominance across the market. An EV makes little sense in Saskatchewan, where only 17 per cent comes from renewables – the rest from fossil fuels. In Alberta, only 8 per cent comes from renewables.

The EV supply chain is also energy-intensive. And speaking of the environment, recycling or disposing of millions of toxic car batteries is bound to be a grubby process.

Where’s the juice?: Since the roofs of most homes in Canada and other parts of the world are not covered in solar panels, plugging in an EV to recharge the battery means plugging into the electrical grid. What if millions of cars get plugged in at once on a hot day, when everyone is running air conditioners?

The next few decades could emerge as an epic energy battle between power-hungry air conditioners, whose demand is rising as summer temperatures rise, and EVs. The strain of millions of AC units running at once in the summer of 2020 during California’s run of record-high temperatures pushed the state into rolling blackouts. A few days ago, Alberta’s electricity system operator asked Albertans not to plug in their EVs because air conditioner use was straining the electricity supply.

According to the MIT Technology Review, rising incomes, populations and temperatures will triple the number of air conditioners used worldwide, to six billion, by mid-century. How will any warm country have enough power to recharge EVs and run air conditioners at the same time? The Canadian government didn’t say in its news release on the 2035 EV mandate. Will it fund the construction of new fleets of power stations?

The wrong government policy: The government’s announcement made it clear that widespread EV use – more cars – is central to its climate policy. Why not fewer cars and more public transportation? Cities don’t need more cars, no matter the propulsion system. They need electrified buses, subways and trains powered by renewable energy. But the idea of making cities more livable while reducing emissions is apparently an alien concept to this government.

 

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