US Moving Towards 30% Electricity From Wind & Solar


EIA graph

CSA Z463 Electrical Maintenance

Our customized live online or in‑person group training can be delivered to your staff at your location.

  • Live Online
  • 6 hours Instructor-led
  • Group Training Available
Regular Price:
$249
Coupon Price:
$199
Reserve Your Seat Today

US Wind and Solar Outlook 2026 projects cheap renewables displacing coal and gas, with utility-scale additions, rooftop solar growth, improved grid reliability, and EV V2G integration accelerating decarbonization across the electricity market.

 

Key Points

An analysis forecasting wind and solar growth, displacing coal and gas as utility-scale and rooftop solar expand.

✅ Utility-scale solar installs avg 21 GW/yr through 2026.

✅ 37.7 GW wind in pipeline; 127.8 GW already online.

✅ Small-scale solar could near 100 TWh in 2026.

 

A recent report from the Institute for Energy Economics and Financial Analysis (IEEFA) predicts that cheap renewables in the form of wind and solar will push coal and gas out of the energy market space. Already at 9% of US generation, the report predicts that wind and solar will supply almost 30% of US electricity demand by 2026, consistent with renewables nearing one-fourth of U.S. generation projections for the near term.

“The Solar Energy Industries Association now expects utility-scale installations to average more than 21,000MW a year through 2026, following a year when U.S. solar generation rose 25% and with a peak of 25,000MW in 2023,” IEEFA writes. “Continued growth is also expected in U.S. wind generation, mirroring global trends where China's solar PV expansion outpaced all other fuels in 2016, with 37.7GW of new capacity already under construction or in advanced development, which would be added to 127.8GW in existing installed capacity.”

Meanwhile, with wind and solar growth booming, fossil fuels are declining, as renewables surpassed coal in 2022 nationwide. “Coal and natural gas are now locked into an essentially zero-sum game where increases in one fuel’s generation comes at the expense of the other. Together, they are not gaining market share, rather they are trading it back and forth, and the rapid growth in renewable generation will cut even deeper into the market share of both.”

And what of rooftop solar? Some states in Australia now have periods where the entire state grid is powered just by solar on the roofs of private citizens. As this revolution progresses in the USA, especially if a tenfold national solar push moves forward, what impact will it make on fossil fuel generators — which are expensive to build, expensive to maintain, expensive to fuel, and rely on an expensive distribution network.

“EIA estimates that this ‘small-scale solar’ produced 41.7 million MWh of power in 2020, when solar accounted for about 3% of U.S. electricity, a 19 percent increase from 2019. This growth will likely continue in the years ahead as costs continue to fall and concerns about grid reliability rise. Assuming a conservative 15 percent annual increase in small-scale solar going forward would push the sector’s generation to almost 100 million MWh in 2026.”

The Joker in the story might be the impact from electric vehicle adoption. Sales are set to surge and there’s more and more interest in V2G technology, even as wind and solar could provide 50% by 2050 in broader forecasts.

 

Related News

Related News

Unprecedented Growth in Solar and Storage Anticipated with Record Installations and Investments

U.S. Clean Energy Transition accelerates with IRA and BIL, boosting renewable energy, solar PV, battery storage, EV adoption, manufacturing, grid resilience, and jobs while targeting carbon-free electricity by 2035 and net-zero emissions by 2050.

 

Key Points

U.S. shift to renewables under IRA and BIL scales solar, storage, and EVs toward carbon-free power by 2035.

✅ Renewables reached ~22% of U.S. electricity generation in 2022.

✅ Nearly $13b in PV manufacturing; 94 plants; 25k jobs announced.

✅ Battery storage grew from 3% in 2017 to 36% by H1 2023.

 

In recent years, the United States has made remarkable strides in embracing renewable energy, with notable solar and wind growth helping to position itself for a more sustainable future. This transition has been driven by a combination of factors, including environmental concerns, economic opportunities, and technological advancements.

With the introduction of the Inflation Reduction Act (IRA) and the Bipartisan Infrastructure Law (BIL), the United States is rapidly advancing its journey towards clean energy solutions.

To underscore the extent of this progress, consider the following vital statistics: In 2022, renewable energy sources (including hydroelectric power) accounted for approximately 22% of the nation's electricity generation, and renewables surpassed coal in the mix that year, while the share of renewables in total electricity generation capacity had risen to around 30% and the nation is moving toward 30% electricity from wind and solar as well.

Notably, in the transportation sector, consumers are increasingly embracing zero-emission fuels, such as electric vehicles. In 2022, battery electric vehicles (BEVs) represented 5.6% of new vehicle registrations, surging to 7.1% by the first half of 2023, according to estimates from EUPD Research.

The United States has set ambitious targets, including achieving 100% carbon pollution-free electricity by 2035 and aiming for economy-wide net-zero greenhouse gas emissions by no later than 2050, and policy proposals such as Biden's solar plan reinforce these goals for the power sector. These targets are poised to provide a significant boost to the clean energy sector in the country, reaffirming its commitment to a sustainable and environmentally responsible future.

 

IRA and BIL: Catalysts for Growth

The IRA and BIL represent a transformative shift in the landscape of clean energy policy, heralding a new era for the solar and energy storage sectors in the United States. The IRA allocates substantial resources to address the climate crisis, fortify domestic clean energy production, and solidify the U.S. as a global leader in clean energy manufacturing.

According to the U.S. Department of Energy (DOE), an impressive investment exceeding $120 billion has been announced for the U.S. battery manufacturing and supply chain sector since the introduction of IRA and BIL. Additionally, plans have been unveiled for over 200 new or expanded facilities dedicated to minerals, materials processing, and manufacturing. This move is expected to create more than 75,000 potential job opportunities, strengthening the nation's workforce.

Following the introduction of IRA and BIL, solar photovoltaic (PV) manufacturing in the U.S. has also witnessed a substantial surge in planned investments, totaling nearly $13 billion, as reported by the DOE. Furthermore, a total of 94 new and expanded PV manufacturing plants have been announced, potentially generating over 25,000 jobs in the country.

 

Booming Solar Sector

In recent years, the U.S. solar sector has outpaced other energy sources, including a surging wind sector and natural gas, in terms of capacity growth. EUPD Research estimates reveal a notable upward trend in the contribution of solar capacity to annual power capacity additions, as 82% of the 2023 pipeline consists of wind, solar, and batteries across utility-scale projects. This trajectory has risen from 37% in 2019 to 38% in 2020, further increasing to 44% in 2021 and an impressive 45% in 2022.

Although the country experienced a temporary setback in 2022 due to pandemic-related delays, trade law enforcement, supply chain disruptions, and rising costs, it is now on track to make a historic addition to its PV capacity in 2023. According to EUPD Research's 2023 forecast, the U.S. is poised to achieve its largest-ever expansion in PV capacity, estimated at 32 to 35 GWdc, assuming the installation of all planned utility-scale capacity, and solar generation rose 25% in 2022 as a supportive indicator. Additionally, from 2023 to 2028, the U.S. is projected to add approximately 233 GWdc of PV capacity.

In terms of cumulative installed PV capacity (including utility-scale, commercial and industrial, and residential) on a state-by-state basis, California holds the top position, followed by Texas, Florida, North Carolina, and Arizona. Remarkably, Texas is rapidly expanding its utility-scale PV capacity and may potentially surpass California in the next two years.

 

Rapid Growth in Battery Storage

Battery energy storage has emerged as the dominant and rapidly expanding source of energy storage in the U.S. in recent years. The proportion of battery storage in the country's energy storage capacity has surged dramatically, increasing from a mere 3% in 2017 to a substantial 36% in the first half of 2023.

 

Related News

View more

California introduces new net metering regime

California NEM-3 Tariff ushers a successor Net Energy Metering framework, revising export compensation, TOU rates, and non-bypassable charges to balance ratepayer impacts, rooftop solar growth, and energy storage adoption across diverse communities.

 

Key Points

The CPUC's successor NEM policy redefining export credits and rates to sustain customer-sited solar and storage.

✅ Sets export compensation methodology beyond NEM 2.0

✅ Aligns TOU rates and non-bypassable charges with costs

✅ Encourages solar-plus-storage adoption and equity access

 

The California Public Utilities Commission (CPUC) has officially commenced its “NEM-3” proceeding, which will establish the successor Net Energy Metering (NEM) tariff to the “NEM 2.0” program in California. This is a highly anticipated, high-stakes proceeding that will effectively modify the rules for the NEM tariff in California, amid ongoing electricity pricing changes that affect residential rooftop solar – arguably the single most important policy mechanism for customer-sited solar over the last decade.

The CPUC’s recent order instituting rule-making (OIR) filing stated that “the major focus of this proceeding will be on the development of a successor to existing NEM 2.0 tariffs. This successor will be a mechanism for providing customer-generators with credit or compensation for electricity generated by their renewable facilities that a) balances the costs and benefits of the renewable electrical generation facility and b) allows customer-sited renewable generation to grow sustainably among different types of customers and throughout California’s diverse communities.”

This successor tariff proceeding was initiated by Assembly Bill 327, which was signed into law in October of 2013. AB 327 is best known as the legislation that directed the CPUC to create the “NEM 2.0” successor tariff, which was adopted by the CPUC in January of 2016.

The original Net Energy Metering program in California (“NEM 1.0”) effectively enabled full-retail value net metering “allowing NEM customers to be compensated for the electricity generated by an eligible customer-sited renewable resource and fed back to the utility over an entire billing period.” Under the NEM 2.0 tariff, customers were required to pay charges that aligned them more closely with non-NEM customer costs than under the original structure. The main changes adopted when the NEM 2.0 was implemented were that NEM 2.0 customer-generators must: (i) pay a one-time interconnection fee; (ii) pay non-bypassable charges on each kilowatt-hour of electricity they consume from the grid; and (iii) customers were required to transfer to a time-of-use (TOU) rate, with potential changes to electric bills for many customers.

NEM 2.0

The commencement of the NEM-3 OIR was preceded by the publishing of a 318-page Net Energy Metering 2.0 Lookback Study, which was published by Itron, Verdant Associates, and Energy and Environmental Economics. The CPUC-commissioned study had been widely anticipated and was expected to act as the starting reference point for the successor tariff proceeding. Verdant also hosted a webinar, which summarized the study’s inputs, assumptions, draft findings and results.

The study utilized several different tests to study the impact of NEM 2.0. The cost effectiveness analysis tests, which estimate costs and benefits attributed to NEM 2.0 include: (i) total resource cost test, (ii) participant cost test, (iii) ratepayer impact measure test, and (iv) program administrator test. The evaluation also included a cost of service analysis, which estimates the marginal cost borne by the utility to serve a NEM 2.0 customer.

The opening paragraph of the report’s executive summary stated that “overall, we found that NEM 2.0 participants benefit from the structure, while ratepayers see increased rates.” In every test that the author’s conducted the results generally supported this conclusion for residential customers. There were some exceptions in their findings. For example, in the cost of service analysis the report stated that “residential customers that install customer-sited renewable resources on average pay lower bills than the utility’s cost to serve them. On the other hand, nonresidential customers pay bills that are slightly higher than their cost of service after installing customer-sited renewable resources. This is largely due to nonresidential customer rates having demand charges (and other fixed fees), and the lower ratio of PV system size to customer load when compared to residential customers.”

Similar debates over solar rate design, including Massachusetts solar demand charges, highlight how demand charges and TOU decisions can affect customer economics.

NEM-3 timeline

Popular content
The preliminary schedule that the CPUC laid out in its OIR estimates that the proceeding will take roughly 15 months in total, starting with a November 2020 pre-hearing conference.

The real meat of the proceeding, where parties will present their proposals for what they believe the successor tariff should be, as the state considers revamping electricity rates to clean the grid, and really show their hand will not begin until the Spring of 2021. So we’re still a little ways away from seeing the proposals that the key parties to this proceeding, like the Investor Owned Utilities (PG&E, SCE, SDG&E), solar and storage advocates such as SEIA, CALSSA, Vote Solar, and ratepayer advocates like TURN) will submit.

While the outcome for the new successor NEM tariff is anyone’s guess at this point, some industry policy folks are starting to speculate. We think it is safe to assume that the value of exported energy will get reduced, with debates over income-based utility charges also influencing rate design. How much and the mechanism for how exports get valued remains to be seen. Based on the findings from the lookback study, it seems like the reduction in export value will be more severe than what happened when NEM 2.0 got implemented. In NEM 2.0, non-bypassable charges, which are volumetric charges that must be paid on all imported energy and cannot be netted-out by exports, only equated to roughly $0.02 to $0.03/kWh.

Given that the value of exports will almost certainly get reduced, we expect that to be bullish for energy storage as America goes electric and load shapes evolve. Energy storage attachment rates with solar are already steadily rising in California. By the time NEM-3 starts getting implemented, likely in 2022, we think storage attachment rates will likely escalate further.

We would not be surprised to see future storage attachment rates in California look like the Hawaiian market today, which are upwards of 80% for certain types of customers and applications. Two big questions on our mind are: (i) will the NEM 3.0 rules be different for different customer class: residential, CARE (e.g., low-income or disadvantaged communities), and commercial & industrial; (ii) will the CPUC introduce some sort of glidepath or phased in implementation approach?

The outcome of this proceeding will have far reaching implications on the future of customer-sited solar and energy storage in California. The NEM-3 outcome in California may likely serve as precedent for other states, as California exports its energy policies across the West, and utility territories that are expected to redesign their Net Energy Metering tariffs in the coming years.

 

Related News

View more

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.

 

Related News

View more

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.
 

 

Related News

View more

B.C. Hydro predicts 'bottleneck' as electric-vehicle demand ramps-up

B.C. EV Bottleneck signals a post-pandemic demand surge for electric vehicles amid semiconductor and lithium-ion battery shortages, driving waitlists, record sales, rebates, charging infrastructure needs, and savings on fuel and maintenance across British Columbia.

 

Key Points

B.C. EV bottleneck is rising demand outpacing supply from chip and battery shortages, creating waitlists.

✅ 85% delayed EV purchase; demand rebounds with reopening.

✅ Supply chain limits: chips and lithium-ion batteries.

✅ Plan ahead: join waitlists, consider used EVs, claim rebates.

 

B.C. Hydro is warning of a post-pandemic “EV bottleneck” as it predicts pent-up demand and EV shortages will lead to record-breaking sales for electric vehicles in 2021.

A new survey by B.C. Hydro found 85 per cent of British Columbians put off buying an electric vehicle during the pandemic, but as the province reopens, the number of people on the road commuting to-and-from work and school is expected to rise 15 per cent compared with before the pandemic.

It found about two-thirds of British Columbians are considering buying an EV over the next five years, with 60 per cent saying they would go with an EV if they can get one sooner.

“The EV market is at a potential tipping point, as demand is on the rise and will likely continue to grow long-term, with one study projecting doubling power output to meet full road electrification,” said a report about the findings released Wednesday.

The demand for EVs is prompted by rising gas prices, environmental concerns and to save money on maintenance costs like oil changes and engine repairs, said the report. At the same time, a shortage of semiconductor chips and lithium ion batteries needed for auto production is squeezing supply.

For people wanting to make the switch to electric, B.C. Hydro recommended they plan ahead and get on several waiting lists and explore networks offering faster charging options. Used EVs are also a cheaper option.

B.C. Hydro said an electric vehicle can save 80 per cent in gas expenses over a year and about $100 a month in maintenance costs compared with a gas-powered vehicle. There are also provincial and federal rebates of up to $8,000 for EV purchases in B.C., and additional charger rebates can help with installation costs.

B.C. has the highest electric vehicle uptake in North America, with zero-emission vehicles making up almost 10 per cent of all car sales in the province in 2020 as the province expands EV charging to support growth — more than double the four per cent in 2018.

According to a report by University of B.C. business Prof. Werner Antweiler on the state of EV adoption in B.C., electric vehicles are still concentrated in urban areas like Metro Vancouver and the Capital Regional District on Vancouver Island where public charging stations are more readily available.

He said electric vehicle purchases are still hampered by limited choice and a lack of charging stations, especially for people who park on the street or in condo parkades, which would require permission from strata councils to install a charging station, though rebates for home and workplace charging can ease installation.

The online survey was conducted by market researcher Majid Khoury of 800 British Columbians from May 17-19. It has a margin of error of plus-or-minus 3.5 per cent, 19 times out of 20.

 

Related News

View more

Renewable Electricity Is Coming on Strong

Cascadia electrification accelerates renewable energy with wind and solar, EVs, heat pumps, and grid upgrades across British Columbia, Washington, and Oregon to decarbonize power, buildings, and transport at lower cost while creating jobs.

 

Key Points

Cascadia electrification is the shift to renewable grids, EVs, and heat pumps replacing fossil fuels.

✅ Wind and solar scale fast; gas and coal phase down

✅ EVs and heat pumps cut fuel costs and emissions

✅ Requires grid upgrades, policy, and social acceptance

 

Fifty years ago, a gasoline company’s TV ads showed an aging wooden windmill. As the wind died, it slowed to stillness. The ad asked: “But what do you do when the wind stops?” For the next several decades, fossil fuel providers and big utilities continued to denigrate renewable energy. Even the U.S. Energy Department deemed renewables “too rare, too diffuse, too distant, too uncertain and too ill-timed” to meaningfully contribute, as a top agency analyst put it in 2005.

Today we know that’s not true, especially in British Columbia, Washington and Oregon.

New research shows we could be collectively poised to pioneer a climate-friendly energy future for the globe — that renewable electricity can not only move Cascadia off of fossil fuels, but do so at an affordable price while creating some jobs along the way.

After decades of disinformation, this may sound like a wishful vision. But building a cleaner and more equitable economy — and doing so in just a few decades to head off the worst effects of climate change — is backed by a growing body of regional and international research.

Getting off fossil fuels is “feasible, necessary… and not very expensive” when compared to the earnings of the overall economy, said Jeffrey Sachs, an economist and global development expert at Columbia University.

Much of the confidence about the price tag comes down to this: Innovation and mass production have made wind and solar power installations cheaper than most fossil-fuelled power plants and today’s fastest-growing source of energy worldwide. The key to moving Cascadia’s economies away from fossil fuels, according to the latest research, is building more, prompting power companies to invest in carbon-free electricity as our go-to “fuel.”

However, doing that in time to help head off a cascading climatic crisis by mid-century means the region must take major steps in the next decade to speed the transition, researchers say. And that will require social buy-in.

The new research highlights three mutually supporting strategies that squeeze out fossil fuels:

Chefs and foodies are well-known fans of natural gas. Why, “Cooking with gas” is an expression for a reason. But one trendy Seattle restaurant-bar is getting by just fine with a climate-friendly alternative: electric induction cooktops.

Induction “burners” are just as controllable as gas burners and even faster to heat and cool, but produce less excess heat and zero air pollution. That made a huge difference to chef Stuart Lane’s predecessors when they launched Seattle cocktail bar Artusi 10 years ago.

Using induction meant they could squeeze more tables into the tight space available next door to Cascina Spinasse — their popular Italian restaurant in Seattle’s vibrant Capitol Hill neighborhood — and lowered the cost of expanding.

Rather than igniting a fossil fuel to roast the surface of pots and pans, induction burners generate a magnetic field that heats metal cookware from inside. For people at home, forgoing gas eliminates combustion by-products, which means fewer asthma attacks and other health impacts.

For Artusi, it eliminated the need for a pricey hood and fans to continuously pump fumes and heat out and pull fresh air in. That made induction the cheaper way to go, even though induction cooktops cost more than conventional gas ranges.

Over the years, they’ve expanded the menu because even guests who come for the signature Amari cocktails often stay for the handmade pasta, meatballs and seasonal sauces. So the initial pair of induction burners has multiplied to nine. Yet Artusi retains a cleaner, quieter and more intimate atmosphere. Yet thanks largely to the smaller fans, “it’s not as chaotic,” said Lane.

And Lane adds, it feels good to be cooking on electricity — which in Seattle proper is about 90 per cent renewable — rather than on a fossil fuel that produces climate-warming greenhouse gases. “You feel like you’re doing something right,” he said.

Lane says he wouldn’t be surprised if induction is the new normal for chefs entering the trade 10 years from now. “They probably would cook with gas and say, ‘Damn it’s hot in here!’” — Peter Fairley

This story is supported in part by a grant from the Fund for Investigative Journalism.

increasing energy efficiency to trim the amount of power we need,

boosting renewable energy to make it possible to turn off climate-wrecking fossil-fuel plants, and

plugging as much stuff as possible into the electrical grid.
Recent studies in B.C. and Washington state, and underway for Oregon, point to efficiency and electrification as the most cost-effective route to slashing emissions while maintaining lifestyles and maximizing jobs. A recent National Academies of Science study reached the same conclusion, calling electrification the core strategy for an equitable and economically advantageous energy transition, while abroad New Zealand's electrification push is asking whether electricity can replace fossil fuels in time.

However, technologies don’t emerge in a vacuum. The social and economic adjustments required by the wholesale shift from fossil fuels that belch climate-warming carbon emissions to renewable power can still make or break decarbonization, according to Jim Williams, a University of San Francisco energy expert whose simulation software tools have guided many national and regional energy plans, including two new U.S.-wide studies, a December 2020 analysis for Washington state and another in process for Oregon.

Williams points to vital actions that are liable to rile up those who lose money in the deal. Steps like letting trees grow many decades older before they are cut down, so they can suck up more carbon dioxide — which means forgoing quicker profits from selling timber. Or convincing rural communities and conservationists that they should accept power-transmission lines crossing farms and forests.

“It’s those kinds of policy questions and social acceptance questions that are the big challenges,” said Williams.

Washington, Oregon and B.C. already mandate growing supplies of renewable power and help cover the added cost of some electric equipment, and across the border efforts at cleaning up Canada's electricity are critical to meeting climate pledges. These include battery-powered cars, SUVs and pickups on the road. Heat pumps — air conditioners that run in reverse to push heat into a building — can replace furnaces. And, at industrial sites, electric machines can take the place of older mechanical systems, cutting costs and boosting reliability.

As these options drop in price they are weakening reliance on fossil fuels — even among professional chefs who’ve long sworn by cooking with gas (see sidebar: Cooking quick, clean and carbon-free).

“For each of the things that we enjoy and we need, there’s a pathway to do that without producing any greenhouse gas emissions,” said Jotham Peters, managing partner for Vancouver-based energy analysis firm Navius Research, whose clients include the B.C. government.


What the modelling tells us

Key to decarbonization planning for Cascadia are computer simulations of future conditions known as models. These projections take electrification and other options and run with them. Researchers run dozens of simulated potential future energy scenarios for a given region, tinkering with different variables: How much will energy demand grow? What happens if we can get 80 per cent of people into electric cars? What if it’s only 50 per cent? And so on.

Accelerating the transition requires large investments, this modelling shows. Plugging in millions of vehicles and heat pumps demands both brawnier and more flexible power systems, including more power lines and other infrastructure such as bridging the Alberta-B.C. electricity gap that communities often oppose. That demands both stronger policies and public acceptance. It means training and apprenticeships for the trades that must retrofit homes, and ensuring that all communities benefit — especially those disproportionately suffering from energy-related pollution in the fossil fuel era.

Consensus is imperative, but the new studies are bound to spark controversy. Because, while affordable, decarbonization is not free.

The Meikle Wind Project in BC’s Peace River region, the province’s largest, with 61 turbines producing 184.6 MW of electricity, went online in 2017. Photo: Pattern Development.
Projections for British Columbia and Washington suggest that decarbonizing Cascadia will spur extra job-stimulating growth. But the benefits and relatively low net cost mask a large swing in spending that will create winners and losers, and without policies to protect disadvantaged communities from potential energy cost increases, could leave some behind.

By 2030, the path to decarbonization shows Washingtonians buying about $5 billion less worth of natural gas, coal and petroleum products, while putting even more dollars toward cleaner vehicles and homes. No surprise then that oil and gas interests are attacking the new research.

And the research shows a likely economic speed bump around 2030. Economic growth would slow due to increased energy costs as economies race to make a sharp turn toward pollution reductions after nearly a decade of rising greenhouse gas emissions.

“Meeting that 2030 target is tough and I think it took everybody a little bit by surprise,” said Nancy Hirsh, executive director of the Seattle-based NW Energy Coalition, and co-chair of a state panel that shaped Washington’s recent energy supply planning.

But that’s not cause to ease up. Wait longer, says Hirsh, and the price will only rise.


Charging up

What most drives Cascadia’s energy models toward electrification is the dropping cost of renewable electricity.

Take solar energy. In 2010, no large power system in the world got more than three per cent of its electricity from solar. But over the past decade, solar energy’s cost fell more than 80 per cent, and by last year it was delivering over nine per cent of Germany’s electricity and over 19 per cent of California’s.

Government mandates and incentives helped get the trend started, and Canada's electricity progress underscores how costs continue to fall. Once prohibitively expensive, solar’s price now beats nuclear, coal and gas-fired power, and it’s expected to keep getting cheaper. The same goes for wind power, whose jumbo jet-sized composite blades bear no resemblance to the rickety machines once mocked by Big Oil.

In contrast, cleaning up gas- or coal-fired power plants by equipping them to capture their carbon pollution remains expensive even after decades of research and development and government incentives. Cost overruns and mechanical failures recently shuttered the world’s largest “low-carbon” coal-fired power plant in Texas after less than four years of operation.

Retrofits enabled this coal-fired plant in Texas to capture some of its carbon dioxide pollution, which was then injected into aging oil wells to revive production. But problems made the plant’s coal-fired power — which is being priced out by renewable energy — even less competitive and it was shut down after three years in 2020. Photo by NRG Energy.
Innovation and incentives are also making equipment that plugs into the grid cheaper. Electric options are good and getting better with a push from governments and a self-reinforcing cycle of performance improvement, mass production and increased demand.

Battery advances and cost cuts over the past decade have made owning an electric car cheaper, fuel included, than conventional cars. Electric heat pumps may be the next electric wave. They’re three to four times more efficient than electric baseboard heaters, save money over natural gas in most new homes, and work in Cascadia’s coldest zones.

Merran Smith, executive director of the Vancouver-based non-profit Clean Energy Canada, says that — as with electric cars five years ago — people don’t realize how much heat pumps have improved. “Heat pumps used to be big huge noisy things,” said Smith. “Now they’re a fraction of the size, they’re quiet and efficient.”

Electrifying certain industrial processes can also cut greenhouse gases at low cost. Surprisingly, even oil and gas drilling rigs and pipeline compressors can be converted to electric. Provincial utility BC Hydro is building new transmission lines to meet anticipated power demand from electrification of the fracking fields in northeastern British Columbia that supply much of Cascadia’s natural gas.


Simulating low-carbon living

The computer simulation tools guiding energy and climate strategies, unlike previous models that looked at individual sectors, take an economy-wide view. Planners can repeatedly run scenarios through sophisticated software, tinkering with their assumptions each time to answer cross-cutting questions such as: Should the limited supply of waste wood from forestry that can be sustainably removed from forests be burned in power plants? Or is it more valuable converted to biofuel for airplanes that can’t plug into the grid?

Evolved Energy Research, a San Francisco-based firm, analyzed the situation in Washington. Its algorithms are tuned using data about energy production and use today — down to the number and types of furnaces, stovetops or vehicles. It has expert assessments of future costs for equipment and fuels. And it knows the state’s mandated emissions targets.

Researchers run the model myriad times, simulating decisions about equipment and fuel purchases — such as whether restaurants stick with gas or switch to electric induction “burners” as their gas stoves wear out. The model finds the most cost-effective choices by homes and businesses that meet the state’s climate goals.

For Seattle wine bar Artusi, going with electric induction cooktops meant they could squeeze more tables into a tight, comfortable space. Standard burners cost less but would have required noisy, pricey fume hoods and fans to suck out the pollutants. For more, see sidebar. Photo: InvestigateWest.
Rather than accepting that optimal scenario and calling it a day, modellers account for uncertainty in their estimates of future costs by throwing in various additional constraints and rerunning the model.

That probing shows that longer reliance on climate-warming natural gas and petroleum fuels increases costs. In fact, all of the climate-protecting scenarios achieve Washington’s goals at relatively low cost, compared to the state’s historic spending on energy.

The end result of these scenarios are net-zero carbon emissions in 2050, echoing Canada's race to net-zero and the growing role of renewable energy, in which a small amount of emissions remaining are offset by rebounding forests or equipment that scrubs CO2 from the air.

But the seeds of that transformation must be sown by 2030. The scenarios identify common strategies that the state can pursue with low risk of future regrets.

One no brainer is to rapidly add wind and solar power to wring out CO2 emissions from Washington’s power sector. The projections end coal-fired power by 2025, as required by law, but also show that, with grid upgrades, gas-fired power plants that produce greenhouse gas emissions can stay turned off most of the time. That delivers about 16.2 million of the 44.8 million metric tons of CO2 emissions cut required by 2030 under state law.

All of the Washington scenarios also jack up electricity consumption to power cars and heating. By 2050, Washington homes and businesses would draw more than twice as much power from the grid as they did last year, meaning climate-friendly electricity is displacing climate-unfriendly gasoline, diesel fuel and natural gas. In the optimal case, electricity meets 98 per cent of transport energy in 2050, and over 80 per cent of building energy use.

By 2050, the high-electrification scenarios would create over 60,000 extra jobs across the state, as replacing old and inefficient equipment and construction of renewable power plants stimulates economic growth, according to projections from Washington, D.C.-based FTI Consulting. Scenarios with less electrification require more low-carbon fuels that cut emissions at higher cost, and thus create 15,000 to 35,000 fewer jobs.

Much of the new employment comes in middle-class positions — including about half of the total in construction — leading to big boosts in employment income. Washingtonians earn over $7 billion more in 2050 under the high-electrification scenarios, compared to a little over $5 billion if buildings stick with gas heating through 2050 and less than $2 billion with extra transportation fuels.


Rocketing to 2030

Evolved Energy’s electrification-heavy decarbonization pathways for Washington dovetail with a growing body of international research, such as that National Academy of Sciences report and a major U.S. decarbonization study led by Princeton University, and in Canada debates like Elizabeth May's 2030 renewable grid goal are testing feasibility. (See Grist’s 100 per cent Clean Energy video for a popularized view of similar pathways to slash U.S. carbon emissions, informed by Princeton modeller Jesse Jenkins.)

 

Related News

View more

Sign Up for Electricity Forum’s Newsletter

Stay informed with our FREE Newsletter — get the latest news, breakthrough technologies, and expert insights, delivered straight to your inbox.

Electricity Today T&D Magazine Subscribe for FREE

Stay informed with the latest T&D policies and technologies.
  • Timely insights from industry experts
  • Practical solutions T&D engineers
  • Free access to every issue

Download the 2025 Electrical Training Catalog

Explore 50+ live, expert-led electrical training courses –

  • Interactive
  • Flexible
  • CEU-cerified