BESS: A Clean Energy Solution NY Needs


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New York BESS advance renewable energy storage, boosting grid reliability and resilience with utility-scale projects, strict safety oversight, and NYPA leadership to meet 6,000 MW by 2030 and 1,500 MW by 2035 targets.

 

Key Points

New York BESS are battery storage projects that balance the grid, enable renewables, and meet strict safety rules.

✅ State targets: 6,000 MW by 2030; 1,500 MW by 2035.

✅ NYPA 20-MW project eases congestion, boosts reliability.

✅ FDNY, NYC DOB, and state agencies enforce stringent safety rules.

 

In the evolving landscape of renewable energy, New York State is making significant advancements through the deployment of Battery Energy Storage Systems (BESS), a trend mirrored by Ontario's plan to rely on battery storage to meet rising demand today. These systems are becoming a crucial component in the shift towards a more sustainable and clean energy future, by providing a solution to one of renewable energy's most significant challenges: storage.

BESS plays a critical role in bridging the gap between energy generation and consumption, and many utilities see benefits in energy storage across their systems today, too. During periods of surplus generation, such as sunny or windy conditions conducive to solar and wind power production, BESS captures and stores excess electricity. This stored energy can then be released back into the grid during times of high demand or when generation is low, ensuring a consistent and reliable energy supply.

Governor Kathy Hochul's administration has been proactive in harnessing this technology. In a landmark move, the state inaugurated its first state-owned, utility-scale BESS facility in Franklin County's Chateaugay, and similar utility procurements, such as SDG&E's Emerald Storage solution, underscore market momentum, signifying a major step towards bolstering New York's BESS infrastructure. This facility, featuring five large enclosures each housing over 19,500 batteries, signifies the beginning of New York's ambitious journey towards expanding its BESS capabilities.

Environmental advocates, including the New York League of Conservation Voters, have lauded these developments, viewing them as essential to meeting New York's climate goals, and they point to community-scale deployments such as a Brooklyn low-income housing microgrid as tangible examples of equitable resilience, too. Currently, New York's BESS capacity stands at approximately 291 megawatts. However, Governor Hochul has set forth bold targets to escalate this capacity to 1,500 megawatts by 2035 and even more ambitiously, to 6,000 megawatts by 2030. Achieving these targets would enable the powering of 1.2 million homes with clean, renewable energy.

"Battery storage is pivotal for the reliability of our electric grid and for the phasing out of pollutive power plants that harm our communities," remarked Pat McClellan, NYLCV’s Policy Director. The implementation of BESS is deemed vital for New York to attain its statutory climate mandates, including achieving 70 percent renewable energy by 2030 and 100 percent clean energy by 2040.

Safety and regulatory oversight are paramount in the proliferation of BESS facilities, especially in densely populated areas like New York City. The state has introduced stringent regulations, overseen by both the NYC Fire Department and the NYC Buildings Department, with state and federal governments also playing a crucial role in ensuring the safe deployment of these technologies, and best practices from jurisdictions focused on enabling storage in Ontario's electricity system can inform ongoing refinements as well.

In a significant announcement last August, Governor Hochul underscored the necessity of state oversight on BESS safety issues. She announced the formation of a new Inter-Agency Fire Safety Working Group tasked with examining energy storage facility fires and safety standards. This group, comprising six state agencies, recently unveiled its findings and recommendations, which will undergo public review.

Governor Hochul emphasized, "The battery energy storage industry is pivotal for communities across New York to transition to a clean energy future, and comprehensive safety standards are critical." The state's proactive stance on adopting these recommendations aims to safeguard New York’s transition to clean energy.

The completion of the Northern New York Energy Storage Project, a 20-MW facility operated by the New York Power Authority, marks a significant milestone in New York's clean energy journey. This project, aimed at alleviating transmission congestion and enhancing grid reliability, serves as a model for integrating clean energy, especially during peak demand periods, as other regions, such as Ontario, are plunging into energy storage to address looming supply crunches.

Located in a region where over 80% of electricity is generated from renewable sources, this project not only supports the state's clean energy grid but also accelerates New York's energy storage and climate objectives. Governor Hochul expressed, “Deploying energy storage technologies enhances our power supply's reliability and resilience, further enabling New York to construct a robust clean energy grid.”

As New York State advances towards its ambitious energy storage and climate goals, the development and deployment of BESS are critical. These systems not only enhance grid reliability and resilience but also support the broader transition to renewable energy sources, including emerging long-duration storage projects that expand flexibility, marking an essential step in New York's commitment to a sustainable and clean energy future.

 

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Alberta Leads Canada’s Renewable Surge

Alberta Leads Canada’s Renewable Surge showcases how the province is transforming its power grid with wind, solar, and hydrogen energy projects that reduce carbon emissions, create sustainable jobs, and drive Canada’s clean electricity future.

 

Key Points: Alberta Leads Canada’s Renewable Surge

It is a national clean energy initiative showcasing Alberta’s leadership in renewable electricity generation, grid modernization, and sustainable economic growth.

✅ Expands solar, wind, and hydrogen projects across Alberta

✅ Reduces emissions while strengthening grid reliability

✅ Creates thousands of clean energy jobs and investments

Alberta is rapidly emerging as a national leader in clean electricity, driving Canada’s transition to a low-carbon energy future. A federal overview highlights how the province has become the powerhouse behind the country’s renewable energy growth across the Prairies, phasing out coal ahead of schedule and attracting billions in clean-energy investment.

In 2023, Alberta accounted for an astonishing 92 percent of Canada’s increase in renewable electricity generation, reflecting a renewable energy surge across the province. Solar and wind developments have expanded dramatically, as new lower-cost solar contracts are signed, reducing the province’s reliance on natural gas and cutting emissions from the power sector. Alberta’s vast land area and strong wind and solar resources have made it an ideal location for large-scale renewable projects that are transforming its energy landscape.

Federal programs are helping fuel this momentum. Through the Smart Renewables and Electrification Pathways program, 49 Alberta projects have already received over $660 million in funding, with an additional $152 million announced in the 2024 federal budget. Flagship developments include the Forty Mile Wind Farm and the Big Sky Solar Power Project, each backed by $25 million in federal support. These investments are creating jobs, strengthening grid reliability, and positioning Alberta at the forefront of Canada’s clean energy transition.

Although fossil fuels still dominate Alberta’s electricity mix, a major change is underway. In 2022, coal and natural gas accounted for 81 percent of electricity generation, while renewables and other sources contributed 18 percent, and the province’s hydroelectric capacity remained comparatively small. However, Alberta has successfully phased out coal generation ahead of the federal deadline, marking a milestone achievement in the province’s decarbonization journey.

Alberta’s renewable expansion features some of the country’s most significant projects. The Travers Solar Project in Vulcan County generates up to 465 megawatts — enough to power about 150,000 homes. Indigenous-led solar initiatives are also expanding, underscoring the province’s solar power growth, supported by $160 million in federal funding that has already created more than 1,500 jobs. On the wind side, the 494-megawatt Buffalo Plains Wind Farm, Canada’s largest onshore installation, began operating in 2024, followed by the 190-megawatt Paintearth Wind facility, which signed a 15-year power purchase agreement with Microsoft.

Beyond wind and solar, Alberta is exploring new technologies to maintain a stable, low-carbon grid while addressing solar expansion challenges related to grid integration. The province is collaborating with Saskatchewan on the development of small modular reactors (SMRs) to provide reliable baseload power and support the long-term shift toward net-zero electricity by 2050. Projects integrating carbon capture and storage are also moving forward, such as the proposed Moraine Power Generating Project — a 465-megawatt natural gas plant that is expected to create more than 700 jobs during construction.

The economic potential of Alberta’s clean energy transformation is substantial. Clean Energy Canada estimates that between 2025 and 2050, the province could gain more than 400,000 new jobs in the clean energy sector — triple the number currently employed in the upstream oil and gas industry. These positions will span renewable generation, hydrogen production, grid modernization, and energy storage.

With strong federal backing, aggressive private investment, and rapid deployment of renewable energy, Alberta is redefining its energy identity. Once known for its fossil fuel resources, the province is now positioning itself as a powerhouse for both green energy and fossil fuels in Canada, demonstrating that economic growth and environmental responsibility can go hand in hand.

 

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Solar Power Becomes EU’s Top Electricity Source

Solar has become the EU’s main source of electricity, marking a historic turning point in Europe’s energy mix as solar power surpasses nuclear and wind, accelerates renewable expansion, lowers carbon emissions, and strengthens the EU’s clean energy transition.

 

Why has Solar Become the EU’s Main Source of Electricity?

Solar has become the EU’s primary source of electricity due to rapid solar expansion, lower installation costs, and robust clean energy policies, which have boosted generation, reduced fossil fuel dependence, and accelerated Europe’s transition toward sustainability.

✅ Surging solar capacity and falling costs

✅ Policy support for renewable energy growth

✅ Reduced reliance on oil, gas, and coal

 

For the first time in history, solar energy became the leading source of electricity generation in the European Union in June 2025, marking a major milestone in the continent’s transition toward renewable energy, as renewables surpassed fossil fuels across the bloc this year. According to new data from Eurostat, more than half of the EU's net electricity production in the second quarter of the year came from renewable sources, with solar power leading the way.

Between April and June 2025, renewables accounted for 54 percent of the EU’s electricity generation, a 1.3 percent increase compared to the same period in 2024. The rise was driven primarily by solar energy, with countries like Germany seeing a solar boost amid the energy crisis, which generated 122,317 gigawatt-hours (GWh) in the second quarter—enough, in theory, to power around three million homes.

Rob Stait, a spokesperson for Alight, one of Europe’s leading solar developers, described the achievement as “heartening.” He said, “Solar’s boom is because it can generate huge energy cost savings, and it's easy and quick to install and scale. A solar farm can be developed in a year, compared to at least five years for wind and at least ten for nuclear. But most importantly, it provides clean, renewable power, and its increased adoption drastically reduces the reliance of Europe on Russian oil and gas supplies.”

Eurostat’s data shows that June 2025 was the first month ever when solar overtook all other energy sources, accounting for 22 percent of the EU’s energy mix, reflecting a broader renewables surge across the region. Nuclear power followed closely at 21.6 percent, wind at 15.8 percent, hydro at 14.1 percent, and natural gas at 13.8 percent.

The shift comes at a critical time as Europe continues to navigate the economic and energy challenges brought on by Russia’s ongoing war in Ukraine. With fossil fuel markets remaining volatile, countries have increasingly viewed investment in renewables as both an environmental and strategic imperative. As Stait noted, energy resilience and renewable infrastructure have now become a “strategic necessity.”

Denmark led the EU in renewable energy generation during the second quarter, producing 94.7% of its electricity from renewable sources. It was followed by Latvia (93.4%), Austria (91.8%), Croatia (89.5%), and Portugal (85.6%). Luxembourg recorded the largest year-on-year increase, up 13.5 percent, largely due to a surge in solar production. Belgium also saw strong growth, with a 9.1 percent rise in renewable generation compared to 2024, while Ireland targets over one-third green electricity within four years.

At the other end of the spectrum, Slovakia, Malta, and the Czech Republic lagged behind, producing just 19.9%, 21.2%, and 22.1% of their electricity from renewable sources, respectively.

Stait believes the continued expansion of renewables will help stabilize and eventually lower electricity prices across Europe. “The accelerated buildout of renewables will ultimately lower bills for both businesses and other users—but slower buildouts mean sky-high prices may linger,” he said.

He added a call for decisive action: “My advice to European nations would be to keep going further and faster. There needs to be political action to solve grid congestion, and to create opportunities for innovation and manufacturing in Europe will be critical to keep momentum.”

With solar energy now taking the lead for the first time, Europe’s clean energy transformation appears to be entering a new phase, as global renewables set new records and momentum builds—one that combines environmental sustainability with energy security and economic opportunity.

 

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Wind is main source of UK electricity for first time

UK Renewable Energy Milestones: wind outpacing gas, record solar output, offshore wind growth, National Grid data, and a net-zero grid by 2035, despite planning reforms, connection queues, and grid capacity constraints.

 

Key Points

Key UK advances where wind beat gas, solar set records, and policies target a 2035 net-zero electricity grid.

✅ Wind generated one-third of electricity, outpacing gas

✅ Record solar output reported by National Grid in April

✅ Onshore wind easing via planning reforms; grid delays persist

 

In the first three months of this year a third of the country's electricity came from wind farms, with the UK leading the G20 for wind power according to research from Imperial College London has shown.

National Grid has also confirmed that April saw a record period of solar energy generation, and wind generation set new records earlier in the year.

By 2035 the UK aims for all of its electricity to have net zero emissions, though progress stalled in 2019 in some areas.

"There are still many hurdles to reaching a completely fossil fuel-free grid, but wind out-supplying gas for the first time, a sign of wind leading the power mix, is a genuine milestone event," said Iain Staffell, energy researcher at Imperial College and lead author of the report.

The research was commissioned by Drax Electrical Insights, which is funded by Drax energy company.

The majority of the UK's wind power has come from offshore wind farms, and wind generated more electricity than coal in 2016 marking an early shift. Installing new onshore wind turbines has effectively been banned since 2015 in England.

Under current planning rules, companies can only apply to build onshore wind turbines on land specifically identified for development in the land-use plans drawn up by local councils. Prime Minister Rishi Sunak agreed in December to relax these planning restrictions to speed up development.

Scientists say switching to renewable power is crucial to curb the impacts of climate change, with milestones like wind and solar topping nuclear underscoring the shift, which are already being felt, including in the UK, which last year recorded its hottest year since records began.

Solar and wind have seen significant growth in the UK. In the first quarter of 2023, 42% of the UK's electricity came from renewable energy, with 33% coming from fossil fuels like gas and record-low coal shares.

Some new solar and wind sites are waiting up to 10 to 15 years to be connected because of a lack of capacity in the electricity system.

And electricity only accounts for 18% of the UK's total power needs. There are many demands for energy which electricity is not meeting, such as heating our homes, manufacturing and transport.

Currently the majority of UK homes use gas for their heating - the government is seeking to move households away from gas boilers and on to heat pumps which use electricity.

 

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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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Electric Cars 101: How EV Motors Work, Tech Differences, and More

Electric Car Motors convert electricity to torque via rotor-stator magnetic fields, using AC/DC inverters, permanent magnets or induction designs; they power EV powertrains efficiently and enable regenerative braking for energy recovery and control.

 

Key Points

Electric car motors turn electrical energy into wheel torque using rotor-stator fields, inverters, and AC or DC control.

✅ AC induction, PMSM, BLDC, and reluctance architectures explained

✅ Inverters manage AC/DC, voltage, and motor speed via frequency

✅ Regenerative braking recovers energy and reduces wear

 

When was the last time you stopped to think about how electric cars actually work, especially if you're wondering whether to buy an electric car today? We superfans of the car biz have mostly developed a reasonable understanding of how combustion powertrains work. Most of us can visualize fuel and air entering a combustion chamber, exploding, pushing a piston down, and rotating a crankshaft that ultimately turns the wheels. We generally understand the differences between inline, flat, vee-shaped, and maybe even Wankel rotary combustion engines.

Mechanical engineering concepts such as these are comparatively easy to comprehend. But it's probably a fair bet to wager that only a minority of folks reading this can explain on a bar napkin exactly how invisible electrons turn a car's wheels or how a permanent-magnet motor differs from an AC induction one. Electrical engineering can seem like black magic and witchcraft to car nuts, so it's time to demystify this bold new world of electromobility, with the age of electric cars arriving ahead of schedule.

How Electric Cars Work: Motors
It has to do with magnetism and the natural interplay between electric fields and magnetic fields. When an electrical circuit closes allowing electrons to move along a wire, those moving electrons generate an electromagnetic field complete with a north and a south pole. When this happens in the presence of another magnetic field—either from a different batch of speeding electrons or from Wile E. Coyote's giant ACME horseshoe magnet, those opposite poles attract, and like poles repel each other.


 

Electric motors work by mounting one set of magnets or electromagnets to a shaft and another set to a housing surrounding that shaft. By periodically reversing the polarity (swapping the north and south poles) of one set of electromagnets, the motor leverages these attracting and repelling forces to rotate the shaft, thereby converting electricity into torque and ultimately turning the wheels, in a sector where the electric motor market is growing rapidly worldwide. Conversely—as in the case of regenerative braking—these magnetic/electromagnetic forces can transform motion back into electricity.

How Electric Cars Work: AC Or DC?
The electricity supplied to your home arrives as alternating current (AC), and bidirectional charging means EVs can power homes for days as needed, so-called because the north/south or plus/minus polarity of the power changes (alternates) 60 times per second. (That is, in the United States and other countries operating at 110 volts; countries with a 220-volt standard typically use 50-Hz AC.) Direct current (DC) is what goes into and comes out of the + and - poles of every battery. As noted above, motors require alternating current to spin. Without it, the electromagnetic force would simply lock their north and south poles together. It's the cycle of continually switching north and south that keeps a motor spinning.


 

Today's electric cars are designed to manage both AC and DC energy on board. The battery stores and dispenses DC current, but again, the motor needs AC. When recharging the battery, and with increasing grid coordination enabling flexibility, the energy comes into the onboard charger as AC current during Level 1 and Level 2 charging and as DC high-voltage current on Level 3 "fast chargers." Sophisticated power electronics (which we will not attempt to explain here) handle the multiple onboard AC/DC conversions while stepping the voltage up and down from 100 to 800 volts of charging power to battery/motor system voltages of 350-800 volts to the many vehicle lighting, infotainment, and chassis functions that require 12-48-volt DC electricity.

How Electric Cars Work: What Types Of Motors?
DC Motor (Brushed): Yes, we just said AC makes the motor go around, and these old-style motors that powered early EVs of the 1900s are no different. DC current from the battery is delivered to the rotor windings via spring-loaded "brushes" of carbon or lead that energize spinning contacts connected to wire windings. Every few degrees of rotation, the brushes energize a new set of contacts; this continually reverses the polarity of the electromagnet on the rotor as the motor shaft turns. (This ring of contacts is known as the commutator).

The housing surrounding the rotor's electromagnetic windings typically features permanent magnets. (A "series DC" or so-called "universal motor" may use an electromagnetic stator.) Advantages are low initial cost, high reliability, and ease of motor control. Varying the voltage regulates the motor's speed, while changing the current controls its torque. Disadvantages include a lower lifespan and the cost of maintaining the brushes and contacts. This motor is seldom used in transportation today, save for some Indian railway locomotives.

Brushless DC Motor (BLDC): The brushes and their maintenance are eliminated by moving the permanent magnets to the rotor, placing the electromagnets on the stator (housing), and using an external motor controller to alternately switch the various field windings from plus to minus, thereby generating the rotating magnetic field.

Advantages are a long lifespan, low maintenance, and high efficiency. Disadvantages are higher initial cost and more complicated motor speed controllers that typically require three Hall-effect sensors to get the stator-winding current phased correctly. That switching of the stator windings can result in "torque ripple"—periodic increases and decreases in the delivered torque. This type of motor is popular for smaller vehicles like electric bikes and scooters, and it's used in some ancillary automotive applications like electric power steering assist.


 

Permanent-Magnet Synchronous Motor (PMSM): Physically, the BLDC and PMSM motors look nearly identical. Both feature permanent magnets on the rotor and field windings in the stator. The key difference is that instead of using DC current and switching various windings on and off periodically to spin the permanent magnets, the PMSM functions on continuous sinusoidal AC current. This means it suffers no torque ripple and needs only one Hall-effect sensor to determine rotor speed and position, so it's more efficient and quieter.

The word "synchronous" indicates the rotor spins at the same speed as the magnetic field in the windings. Its big advantages are its power density and strong starting torque. A main disadvantage of any motor with spinning permanent magnets is that it creates "back electromotive force" (EMF) when not powered at speed, which causes drag and heat that can demagnetize the motor. This motor type also sees some duty in power steering and brake systems, but it has become the motor design of choice in most of today's battery electric and hybrid vehicles.


 

Note that most permanent-magnet motors of all kinds orient their north-south axis perpendicular to the output shaft. This generates "radial (magnetic) flux." A new class of "axial flux" motors orients the magnets' N-S axes parallel to the shaft, usually on pairs of discs sandwiching stationary stator windings in between. The compact, high-torque axial flux orientation of these so-called "pancake motors" can be applied to either BLDC or PMSM type motors.


 

AC Induction: For this motor, we toss out the permanent magnets on the rotor (and their increasingly scarce rare earth materials) and keep the AC current flowing through stator windings as in the PMSM motor above.

Standing in for the magnets is a concept Nikola Tesla patented in 1888: As AC current flows through various windings in the stator, the windings generate a rotating field of magnetic flux. As these magnetic lines pass through perpendicular windings on a rotor, they induce an electric current. This then generates another magnetic force that induces the rotor to turn. Because this force is only induced when the magnetic field lines cross the rotor windings, the rotor will experience no torque or force if it rotates at the same (synchronous) speed as the rotating magnetic field.

This means AC induction motors are inherently asynchronous. Rotor speed is controlled by varying the alternating current's frequency. At light loads, the inverter controlling the motor can reduce voltage to reduce magnetic losses and improve efficiency. Depowering an induction motor during cruising when it isn't needed eliminates the drag created by a permanent-magnet motor, while dual-motor EVs using PMSM motors on both axles must always power all motors. Peak efficiency may be slightly greater for BLDC or PMSM designs, but AC induction motors often achieve higher average efficiency. Another small trade-off is slightly lower starting torque than PMSM. The GM EV1 of the mid-1990s and most Teslas have employed AC Induction motors, despite skepticism about an EV revolution in some quarters.


 

Reluctance Motor: Think of "reluctance" as magnetic resistance: the degree to which an object opposes magnetic flux. A reluctance motor's stator features multiple electromagnet poles—concentrated windings that form highly localized north or south poles. In a switched reluctance motor (SRM), the rotor is made of soft magnetic material such as laminated silicon steel, with multiple projections designed to interact with the stator's poles. The various electromagnet poles are turned on and off in much the same way the field windings in a BLDC motor are. Using an unequal number of stator and rotor poles ensures some poles are aligned (for minimum reluctance), while others are directly in between opposite poles (maximum reluctance). Switching the stator polarity then pulls the rotor around at an asynchronous speed.


 

A synchronous reluctance motor (SynRM) doesn't rely on this imbalance in the rotor and stator poles. Rather, SynRM motors feature a more distributed winding fed with a sinusoidal AC current as in a PMSM design, with speed regulated by a variable-frequency drive, and an elaborately shaped rotor with voids shaped like magnetic flux lines to optimize reluctance.

The latest trend is to place small permanent magnets (often simpler ferrite ones) in some of these voids to take advantage of both magnetic and reluctance torque while minimizing cost and the back EMF (or counter-electromotive force) high-speed inefficiencies that permanent-magnet motors suffer.

Advantages include lower cost, simplicity, and high efficiency. Disadvantages can include noise and torque ripple (especially for switched reluctance motors). Toyota introduced an internal permanent-magnet synchronous reluctance motor (IPM SynRM) on the Prius, and Tesla now pairs one such motor with an AC induction motor on its Dual Motor models. Tesla also uses IPM SynRM as the single motor for its rear-drive models.


 

Electric motors may never sing like a small-block or a flat-plane crank Ferrari. But maybe, a decade or so from now, we'll regard the Tesla Plaid powertrain as fondly as we do those engines, even as industry leaders note that mainstream adoption faces hurdles, and every car lover will be able to describe in intimate detail what kind of motors it uses.
 

 

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Zero-emissions electricity by 2035 is possible

Canada Net-Zero Electricity 2035 aligns policy and investments with renewables, wind, solar, hydro, storage, and transmission to power electrification of EVs and heat pumps, guided by a stringent clean electricity standard and carbon pricing.

 

Key Points

A 2035 plan for a zero-emissions grid using renewables, storage and transmission to electrify transport and homes.

✅ Wind, solar, and hydro backed by battery storage and reservoirs

✅ Interprovincial transmission expands reliability and lowers costs

✅ Stringent clean electricity standard and full carbon pricing

 

By Tom Green
Senior Climate Policy Advisor
David Suzuki Foundation

Electric vehicles are making inroads in some areas of Canada. But as their numbers grow, will there be enough electrical power for them, and for all the buildings and the industries that are also switching to electricity?

Canada – along with the United States, the European Union and the United Kingdom – is committed to a “net-zero electricity grid by 2035 policy goal”. This target is consistent with the Paris Agreement’s ambition of staying below 1.5 C of global warming, compared with pre-industrial levels.

This target also gives countries their best chance of energy security, as laid out in landmark reports over the past year from the International Energy Agency and the Intergovernmental Panel on Climate Change. A new federal regulation in the form of a clean electricity standard is being developed, but will it be stringent enough to set us up for climate success and avoid dead ends?

Canada starts this work from a relatively low emissions-intensity grid, powered largely by hydroelectricity. However, some provinces such as Alberta, Saskatchewan, Nova Scotia and New Brunswick still have predominantly fossil fuel-powered electricity. Plus, there is a risk of more natural gas generation of electricity in the coming years in most provinces without new federal and provincial regulations.

This means the transition of Canada’s electricity system must solve two problems at once. It must first clean up the existing electricity system, but it must also meet future electricity needs from zero-emissions sources while overall electricity capacity doubles or even triples by 2050.

Canada has enormous potential for renewable generation, even though it remains a solar power laggard in deployment to date. Wind, solar and energy storage are proven, affordable technologies that can be produced here in Canada, while avoiding the volatility of global fossil fuel markets.

As wind and solar have become the cheapest forms of electricity generation in history, we’re already seeing foreign governments and utilities ramp up renewable projects at the pace and scale that would be needed here in Canada, highlighting a significant global electricity market opportunity for Canadian firms at home. In 2020, 280 gigawatts of new capacity was added globally – a 45 per cent increase over the previous year. In Canada, since 2010, annual growth in renewables has so far averaged less than three per cent.

So why aren’t we moving full steam – or electron – ahead? With countries around the world bringing in wind and solar for new generation, why is there so much delay and doubt in Canada, even as analyses explore why the U.S. grid isn’t 100% renewable and remaining barriers?

The modelling team drew on a dataset that accounts for how wind and solar potential varies across the country, through the weeks of the year and the hours of each day. The models provide solutions for the most cost-effective new generation, storage and transmission to add to the grid while ensuring electricity generation meets demand reliably every hour of the year.

The David Suzuki Foundation partnered with the University of Victoria to model the electricity grid of the future.

To better understand future electricity demand, a second modelling team was asked to explore a future when homes and businesses are aggressively electrified; fossil fuel furnaces and boilers are retired and replaced with electric heat pumps; and gasoline and diesel cars are replaced by electric vehicles and public transit. It also dialed up investments in energy efficiency to further reduce the need for energy. These hourly electricity-demand projections were fed back to the models developed at the University of Victoria.

The results? It is possible to meet Canada’s needs for clean electricity reliably and affordably through a focus on expanding wind and solar generation capacity, complemented with new transmission connections between provinces, and other grid improvements.

How is it that such high levels of variable wind and solar can be added to the grid while keeping the lights on 24/7? The model took full advantage of the country’s existing hydroelectric reservoirs, using them as giant batteries, storing water behind the dams when wind and solar generation was high to be used later when renewable generation is low, or when demand is particularly high. The model also invested in more transmission to enable expanded electricity trade between provinces and energy storage in the form of batteries to smooth out the supply of electricity.

Not only is it possible, but the renewable pathway is the safe bet.

There’s no doubt it will take unprecedented effort and scale to transform Canada’s electricity systems. The high electrification pathway would require an 18-fold increase over today’s renewable electricity capacity, deploying an unprecedented amount of new wind, solar and energy storage projects every year from now to 2050. Although the scale seems daunting, countries such as Germany are demonstrating that this pace and scale is possible.

The modelling also showed that small modular nuclear reactors (SMRs) are neither necessary nor cost-effective, making them a poor candidate for continued government subsidies. Likewise, we presented pathways with no need for continued fossil fuel generation with carbon capture and storage (CCS) – an expensive technology with a global track record of burning through public funds while allowing fossil fuel use to expand and while capturing a smaller proportion of the smokestack carbon than promised. We believe that Canada should terminate the significant subsidies and supports it is giving to fossil fuel companies and redirect this support to renewable electricity, energy efficiency and energy affordability programming.

The transition to clean electricity would come with new employment for people living in Canada. Building tomorrow’s grid will support more than 75,000 full-time jobs each year in construction, operation and maintenance of wind, solar and transmission facilities alone.

Regardless of the path chosen, all energy projects in Canada take place on unceded Indigenous territories or treaty land. Decolonizing power structures with benefits to Indigenous communities is imperative. Upholding Indigenous rights and title, ensuring ownership opportunities and decision-making and direct support for Indigenous communities are all essential in how this transition takes place.

Wind, solar, storage and smart grid technologies are evolving rapidly, but our understanding of the possibilities they offer for a zero-emissions future, including debates over clean energy’s dirty secret in some supply chains, appears to be lagging behind reality. As the Institut de L’énergie Trottier observed, decarbonization costs have fallen faster than modellers anticipated.

The shape of tomorrow’s grid will largely depend on policy decisions made today. It’s now up to people living in Canada and their elected representatives to create the right conditions for a renewable revolution that could make the country electric, connected and clean in the years ahead.

To avoid a costly dash-to-gas that will strand assets and to secure early emissions reductions, the electricity sector needs to be fully exposed to the carbon price. The federal government’s announcement that it will move forward with a clean electricity standard – requiring net-zero emissions in the electricity sector by 2035 – will help if the standard is stringent.

Federal funding to encourage provinces to expand interprovincial transmission, including recent grid modernization investments now underway will also move us ahead. At the provincial level, electricity system governance – from utility commission mandates to electricity markets design – needs to be reformed quickly to encourage investments in renewable generation. As fossil fuels are swapped out across the economy, more and more of a household’s total energy bill will come from a local electric utility, so a national energy poverty strategy focused on low-income and equity-seeking households must be a priority.

The payoff from this policy package? Plentiful, reliable, affordable electricity that brings better outcomes for community health and resilience while helping to avoid the worst impacts of climate change.

 

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