EU share of electric cars grew during virus lockdown months


EU electric cars

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European Electric Car Market Share rose as EV adoption accelerated during lockdowns, driven by CO2 emissions limits, subsidies, battery-electric and plug-in hybrids, fast-charging networks, and launches like Volkswagen ID.3, despite overall auto sales plunging.

 

Key Points

European Electric Car Market Share is the EV share of auto sales, showing policy, price, and charging network impacts.

✅ Driven by CO2 limits, subsidies, and falling battery costs

✅ Includes battery-electric and plug-in hybrid registrations

✅ Gains despite pandemic slump in diesel and gasoline sales

 

The market share of electric cars in Europe increased during and immediately after the worst of the pandemic lockdowns, industry figures showed Thursday, even as overall sales of vehicles of all types plunged during the second quarter. The new figures come as automakers ramp up electric car production, suggesting the age of electric cars is arriving ahead of schedule, under pressure to meet tough new emissions limits next year.

The share of chargeable cars rose to 7.2% per cent in the April-June quarter from 6.8% in the first quarter, according to figures from the European Automobile Manufacturers Association, while the global market went from zero to 2 million in five years. The figures include both battery-only vehicles and plug-in hybrids, which combine a battery that can be charged from a wall plug with an internal combustion engine, to extend range.

Chargeable vehicles sales fell, to 129,000 from 167,000, but the overall car market shrank even more, by more than 50 per cent for both diesel and gasoline-engine cars. The April-June quarter included the worst of the lockdowns that limited movements and gatherings.

Market share is important because carmakers will be judged by their fleet average under tough new limits on carbon dioxide emissions that come fully into force next year. The new limits, aimed at combating global warming, mean that carmakers must make and sell more low-emission cars, amid concerns that an EV slump in Europe could jeopardize climate goals. Carbon dioxide is the main greenhouse gas blamed by scientists for global warming.

The second half of the year will see Europe's largest carmaker, Volkswagen, launch sales of its battery-only ID.3, intended as a mass-market electric option starting at less than 30,000 euros ($35,500). Uptake of electric cars had been slow until this year due to concerns about range, places to charge and higher prices, but forecasts suggest that within a decade many drivers will be in electric vehicles. Battery prices have been falling, however, and a carmaker consortium is building a network of highway fast-charging stations. Governments have also increased subsidies for electric vehicle sales as part of economic stimulus programs aimed at cushioning the pandemic recession.

Uptake of electrics has been heavily tilted toward the 27-country EU's wealthier western members, with France recently hitting record market share levels. For instance, there were 8,137 chargeable vehicles registered in the Netherlands in the second quarter compared to 328 in Romania.

The share of sales that went to diesel cars fell to 29.4% from 31.3% in the same period a year ago. Diesel sales have plummeted in the wake of Volkswagen's 2015 scandal over diesel cars manipulated to cheat on emissions standards in the United States.

Lucien Mathieu, e-mobility analyst with environmental lobby Transport & Environment, said that “despite the pandemic, electric car sales are growing at an unprecedented rate" and that electric vehicles and hybrids are taking market share from diesel and gasoline models, which emit greenhouse gases and pollutants that harm people's health. “2020 is the year of the electric car in Europe,” he said.

The U.S., with cheap gasoline and a federal government that wants to roll back fuel economy requirements, is moving more slowly in adopting electric vehicles, even as EV sales soar into 2024 and market share dips in Q1 2024. In China, a reduction in subsidies led to a slowdown in electric sales late last year, but the government is moving ahead with requirements for more low-emission vehicles over the long term.

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Will the next wave of Ontario's electric vehicles run on clean power?

Ontario EV Clean Electricity Plan aligns EV adoption with clean power, natural gas phaseout, and grid decarbonization, cutting greenhouse gas emissions. Parties propose net-zero by 2030 as IESO warns rising gas use undermines climate gains.

 

Key Points

A plan to link EV growth to a cleaner grid by phasing out gas, boosting renewables, and targeting net-zero power.

✅ Parties back EVs; most pledge gas phaseout by 2030

✅ IESO projects quadrupled grid emissions under more gas

✅ Clean power needed to maximize EV climate benefits

 

Ontario’s political leaders are unanimously promoting electric vehicles (EVs) in their election platforms, even as Ontario's EV charging network remains only partially complete by a recent deadline. But if the electricity that powers those vehicles continues to come from burning fossil fuels, the province won’t reap the full environmental benefit of EVs, the Ontario Clean Air Alliance says.

“If we’re going to get the maximum benefit of electric vehicles, we’ve got to have a clean electricity supply,” said Jack Gibbons, chair of the alliance.

The environmental advocacy group surveyed the province’s Progressive Conservative, Liberal, NDP and Green parties about where they stand on generating electricity from natural gas, a fossil fuel. Only three committed to phasing out Ontario’s gas plants, a step seen as essential for supporting Canada's EV goals over time.

The NDP promised an electricity grid with net-zero emissions by 2030, while federal targets like the 2035 EV sales mandate shape transport electrification as well. The Liberals pledged to bring electricity emissions "as close to zero as possible by 2030.” The Green Party plans to make Ontario’s electricity “emission-free as quickly as possible,” aiming for a gas phaseout by 2030. The Progressive Conservatives did not answer the survey and did not respond to requests for comment from Canada’s National Observer.

Affordability and reliability were the top concerns for all three parties that responded, including the cost of expanding EV charging stations across the province.

Ontario used to get 25 per cent of its electricity from coal-fired power plants, even as 2019 fossil-fuel electricity share remained significant nationwide. However, in 1997, Gibbons formed the alliance to campaign against coal, and the province’s last coal-fired plant closed in 2014, leaving Ontario with one of North America’s cleanest electricity systems. At the time, Gibbons said, transitioning to gas-fired electricity made sense.

Now, Doug Ford’s Progressive Conservatives plan to double-down on gas-fired electricity generation to meet future demand, despite a looming energy storage supply crunch that is reshaping planning. As a result, planet-warming greenhouse gas emissions from electricity generation will more than quadruple by 2030, according to Ontario’s Independent Electricity System Operator (IESO).

If that happens, Ontario will lose 30 per cent of the progress it made by phasing out coal.

“If you have an increasing percentage of your electricity generated with fossil fuels, that undermines the activities of a variety of sectors in the society,” said Peter Tabuns, NDP candidate for Toronto-Danforth and former NDP energy and climate critic. “Ford's position of not committing to greening the system undermines the goals.”

In 2020, the alliance spearheaded a campaign calling on the Ford government to phase out the province’s gas plants. Thirty-two municipalities supported the campaign, and in Northern Ontario, Sudbury eco groups say sustainability is key to the grid's future. Many cities have said they will not be able to meet their own goals to fight climate change unless Ontario stops using fossil fuels for electricity.

 

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Wind Turbine Operations and Maintenance Industry Detailed Analysis and Forecast by 2025

Wind Turbine Operations and Maintenance Market is expanding as offshore and onshore renewables scale, driven by aging turbines, investment, UAV inspections, and predictive O&M services, despite skills shortages and rising logistics costs.

 

Key Points

Sector delivering inspection, repair, and predictive services to keep wind assets reliable onshore and offshore.

✅ Aging turbines and investor funding drive service demand

✅ UAV inspections and predictive analytics cut downtime

✅ Offshore growth offsets skills and logistics constraints

 

Wind turbines are capable of producing vast amounts of electricity at competitive prices, provided they are efficiently maintained and operated. Being a cleaner, greener source of energy, wind energy is also more reliable than other sources of power generation, with growth despite COVID-19 recorded across markets. Therefore, the demand for wind energy is slated to soar over the next few years, fuelling the growth of the global market for wind turbine operations and maintenance. By application, offshore and onshore wind turbine operations and maintenance are the two major segments of the market.

 

Global Wind Turbine Operations and Maintenance Market: Key Trends

The rising number of aging wind turbines emerges as a considerable potential for the growth of the market. The increasing downpour of funds from financial institutions and public and private investors has also been playing a significant role in the expansion of the market, with interest also flowing toward wave and tidal energy technologies that inform O&M practices. On the other hand, insufficient number of skilled personnel, coupled with increasing costs of logistics, remains a key concern restricting the growth of the market. However, the growing demand for offshore wind turbines across the globe is likely to materialize into fresh opportunities.

 

Global Wind Turbine Operations and Maintenance Market: Market Potential

A number of market players have been offering diverse services with a view to make a mark in the global market for wind turbine operations and maintenance. For instance, Scotland-based SgurrEnergy announced the provision of unmanned aerial vehicles (UAVs), commonly known as drones, as a part of its inspection services. Detailed and accurate assessments of wind turbines can be obtained through these drones, which are fitted with cameras, with four times quicker inspections than traditional methods, claims the company. This new approach has not only reduced downtime, but also has prevented the risks faced by inspection personnel.

The increasing number of approvals and new projects is preparing the ground for a rising demand for wind turbine operations and maintenance. In March 2017, for example, the Scottish government approved the installation of eight 6-megawatt wind turbines off the coast of Aberdeen, towards the northeast. The state of Maryland in the U.S. will witness the installation of a new offshore wind plant, encouraging greater adoption of wind energy in the country. The U.K., a leader in UK offshore wind deployment, has also been keeping pace with the developments, with the installation of a 400-MW offshore wind farm, off the Sussex coast throughout 2017. The Rampion project will be developed by E.on, who has partnered with Canada-based Enbridge Inc. and the UK Green Investment Bank plc.

 

Global Wind Turbine Operations and Maintenance Market: Regional Outlook

Based on geography, the global market for wind turbine operations and maintenance has been segmented into Asia Pacific, Europe, North America, and Rest of the World (RoW). Countries such as India, China, Spain, France, Germany, Scotland, and Brazil are some of the prominent users of wind energy and are therefore likely to account for a considerable share in the market. In the U.S., favorable government policies are backing the growth of the market, though analyses note that a prolonged solar ITC extension could pressure wind competitiveness. For instance, in 2013, a legislation that permits energy companies to transfer the costs of offshore wind credits to ratepayers was approved. Asia Pacific is a market with vast potential, with India and China being major contributors aiding the expansion of the market.

 

Global Wind Turbine Operations and Maintenance Market: Competitive Analysis

Some of the major companies operating in the global market for wind turbine operations and maintenance are Gamesa Corporacion Tecnologica, Xinjiang Goldwind Science & Technologies, Vestas Wind Systems A/S, Upwind Solutions, Inc, GE Wind Turbine, Guodian United Power Technology Company Ltd., Nordex SE, Enercon GmbH, Siemens Wind Power GmbH, and Suzlon Group. A number of firms have been focusing on mergers and acquisitions to extend their presence across new regions.

 

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Road to electric vehicle targets in Manitoba not smooth, experts say

Manitoba ZEV Roadblocks highlight EV charging station gaps, rural infrastructure limits, dealership supply shortages, and ZEV mandate timelines, pushing mode shift to transit, cycling, and walking while hampering zero-emission vehicle adoption across the province.

 

Key Points

EV charging gaps, rural access limits, and supply constraints slow Manitoba's progress toward ZEV targets.

✅ Sparse Level 3 fast chargers outside Winnipeg

✅ Rural infrastructure limits long-distance confidence

✅ Dealership supply lags; long pre-order wait times

 

The federal government’s push toward zero-emission vehicles (ZEVs), including forthcoming EV sales regulations, is hitting some roadblocks in Manitoba.

Earlier this year, Ottawa set a sales target to encourage Canadians to choose ZEVs. By 2026, their goal is to have ZEVs make up 20 per cent of new vehicle purchases. By 2035, they want all new vehicles sold to be ZEVs, a target that has sparked 2035 EV mandate debate among industry observers.

READ MORE: Ottawa sets 2026 target for mandating electric vehicle sales

Connie Blixhavn with the Manitoba Electric Vehicle Association (MEVA) doesn’t think Manitoba is on track.

“We’re not, not at all,” she said.

Blixhavn lives in Killarney, Man., and bought an electric vehicle last year. She plans her trips to Brandon and Winkler around the life of her car’s battery, but finds the charging infrastructure to be lacking and unreliable, a challenge echoed by Labrador's lagging infrastructure in Newfoundland and Labrador.

“Brandon is my closest place to get a level three charge, and when they’re not working, it limits where you can go,” she said.

Level three is the fastest type of EV charger, taking about 15-45 minutes to fully charge a vehicle’s batteries.

According to CAA, 68 of the province’s 94 EV charging stations are in Winnipeg. Blixhavn says it limits options for rural people to confidently adopt EVs, even as jurisdictions like the N.W.T. encourage EV adoption through targeted programs.

“I know we’re a big area, but they need to strategically plan where they put these so we all have access,” she said.

ZEVs are often not found on dealership lots – they have to be pre-ordered. One dealership employee told Global News demand far outweighs supply, amid EV shortages and wait times reported nationally, with some customers waiting one to two years for their new vehicle to arrive.

Mel Marginet with the Green Action Centre’s Sustainable Transporation Team is also wary of Manitoba’s ability to meet the 2026 goal, noting that even as experts question Quebec's EV push there are broader challenges. She believes the only way to come close is to change how much Manitobans use personal vehicles altogether.

“If we’re really concerned about the environment, we need to double and triple down on just reducing personal vehicle trips by and large,” she said.

Marginet points to transit, walking and cycling as ways to reduce reliance on driving.

“We depend on personal vehicles a lot in this province, and far more than we should have to,” she said. “My biggest worry is that we’ll take resources away from what we need to build to get people to use personal vehicles less.”

For Blixhavn, the lack of charging stations in her area has caused her to reduce her vehicle use. While she says she’s fine with the extra planning it takes to travel, she believes the lack of infrastructure is preventing Manitobans, especially those in rural areas, from catching up with other provinces, as Atlantic Canada EV interest lags the rest of the country, when it comes to choosing electric vehicles.

 

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Bus depot bid to be UK's largest electric vehicle charging hub

First Glasgow Electric Buses will transform the Caledonia depot with 160 charging points, zero-emission operations, grid upgrades, and rapid charging, supported by Transport Scotland funding and Alexander Dennis manufacturing for cleaner urban routes by 2023.

 

Key Points

Electric single-deckers at Caledonia depot with 160 chargers and upgrades, delivering zero-emission service by 2023

✅ 160 charging points; 4-hour rapid recharge capability

✅ Grid upgrades to power a fleet equal to a 10,000-person town

✅ Supported by Transport Scotland; built by Alexander Dennis

 

First Bus will install 160 charging points and replace half its fleet with electric buses at its Caledonia depot in Glasgow.

The programme is expected to be completed in 2023, similar to Metro Vancouver's battery-electric rollout milestones, with the first 22 buses arriving by autumn.

Charging the full fleet will use the same electricity as it takes to power a town of 10,000 people.

The scale of the project means changes are needed to the power grid, a challenge highlighted in global e-bus adoption analysis, to accommodate the extra demand.

First Glasgow managing director Andrew Jarvis told BBC Scotland: "We've got to play our part in society in changing how we all live and work. A big part of that is emissions from vehicles.

"Transport is stubbornly high in terms of emissions and bus companies need to play their part, and are playing their part, in that zero emission journey."

First Bus currently operates 337 buses out of its largest depot with another four sites across Glasgow.

The new buses will be built by Alexander Dennis at its manufacturing sites in Falkirk and Scarborough.

The transition requires a £35.6m investment by First with electric buses costing almost double the £225,000 bill for a single decker running on diesel.

But the company says maintenance and running costs, as seen in St. Albert's electric fleet results, are then much lower.

The buses can run on urban routes for 16 hours, similar to Edmonton's first e-bus performance, and be rapidly recharged in just four hours.

This is a big investment which the company wouldn't be able to achieve on its own.

Government grants only cover 75% of the difference between the price of a diesel and an electric bus, similar to support for B.C. electric school buses programmes, so it's still a good bit more expensive for them.

But they know they have to do it as a social responsibility, and large-scale initiatives like US school bus conversions show the direction of travel, and because the requirements for using Low Emissions Zones are likely to become stricter.

The SNP manifesto committed to electrifying half of Scotland's 4,000 or so buses within two years.

Some are questioning whether that's even achievable in the timescale, though TTC's large e-bus fleet offers lessons, given the electricity grid changes that would be necessary for charging.

But it's a commitment that environmental groups will certainly hold them to.

Transport Scotland is providing £28.1m of funding to First Bus as part of the Scottish government's commitment to electrify half of Scotland's buses in the first two years of the parliamentary term.

Net Zero Secretary Michael Matheson said: "It's absolute critical that we decarbonise our transport system and what we have set out are very ambitious plans of how we go about doing that.

"We've set out a target to make sure that we decarbonise as many of the bus fleets across Scotland as possible, at least half of it over the course of the next couple of years, and we'll set out our plans later on this year of how we'll drive that forward."

Transport is the single biggest source of greenhouse gas emissions in Scotland which are responsible for accelerating climate change.

In 2018 the sector was responsible for 31% of the country's net emissions.

Electric bus
First Glasgow has been trialling two electric buses since January 2020.

Driver Sally Smillie said they had gone down well with passengers because they were much quieter than diesel buses.

She added: "In the beginning it was strange for them not hearing them coming but they adapt very easily and they check now.

"It's a lot more comfortable. You're not feeling a gear change and the braking's smoother. I think they're great buses to drive."

 

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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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Solar and wind power curtailments are rising in California

CAISO Renewable Curtailments reflect grid balancing under transmission congestion and oversupply, reducing solar and wind output while leveraging WEIM trading, battery storage, and transmission expansion to integrate renewables and stabilize demand-supply.

 

Key Points

CAISO renewable curtailments are reductions in wind and solar output to balance grid amid congestion or oversupply.

✅ Driven mainly by transmission congestion, less by oversupply.

✅ Peaks in spring when demand is low and solar output is high.

✅ Mitigated by WEIM trades, new lines, and battery storage growth.

 

The California Independent System Operator (CAISO), the grid operator for most of the state, is increasingly curtailing solar- and wind-powered electricity generation, as reported in rising curtailments, as it balances supply and demand during the rapid growth of wind and solar power in California.

Grid operators must balance supply and demand to maintain a stable electric system as advances in solar and wind continue to scale. The output of wind and solar generators are reduced either through price signals or rarely, through an order to reduce output, during periods of:

Congestion, when power lines don’t have enough capacity to deliver available energy
Oversupply, when generation exceeds customer electricity demand

In CAISO, curtailment is largely a result of congestion. Congestion-related curtailments have increased significantly since 2019 because California's solar boom has been outpacing upgrades in transmission capacity.

In 2022, CAISO curtailed 2.4 million megawatthours (MWh) of utility-scale wind and solar output, a 63% increase from the amount of electricity curtailed in 2021. As of September, CAISO has curtailed more than 2.3 million MWh of wind and solar output so far this year, even as the US project pipeline is dominated by wind, solar, and batteries.

Solar accounts for almost all of the energy curtailed in CAISO—95% in 2022 and 94% in the first seven months of 2023. CAISO tends to curtail the most solar in the spring when electricity demand is relatively low (because moderate spring temperatures mean less demand for space heating or air conditioning) and solar output is relatively high, although wildfire smoke impacts can reduce available generation during fire season as well.

CAISO has increasingly curtailed renewable generation as renewable capacity has grown in California, and the state has even experienced a near-100% renewables moment on the grid in recent years. In 2014, a combined 9.0 gigawatts (GW) of wind and solar capacity had been built in California. As of July 2023, that number had grown to 17.6 GW. Developers plan to add another 3.0 GW by the end of 2024.

CAISO is exploring and implementing various solutions to its increasing curtailment of renewables, including:

The Western Energy Imbalance Market (WEIM) is a real-time market that allows participants outside of CAISO to buy and sell energy to balance demand and supply. In 2022, more than 10% of total possible curtailments were avoided by trading within the WEIM. A day ahead market is expected to be operational in Spring 2025.

CAISO is expanding transmission capacity to reduce congestion. CAISO’s 2022–23 Transmission Planning Process includes 45 transmission projects to accommodate load growth and a larger share of generation from renewable energy sources.

CAISO is promoting the development of flexible resources that can quickly respond to sudden increases and decreases in demand such as battery storage technologies that are rapidly becoming more affordable. California has 4.9 GW of battery storage, and developers plan to add another 7.6 GW by the end of 2024, according to our survey of recent and planned capacity changes. Renewable generators can charge these batteries with electricity that would otherwise have been curtailed.

 

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