More than half of new U.S. electric-generating capacity in 2023 will be solar

Vehicle-to-Grid V2G unlocks EV charging flexibility and grid services, integrating renewable energy, demand response, and peak shaving to displace stationary storage and firm generation while lowering system costs and enhancing reliability.

Key Points

Vehicle-to-Grid V2G lets EV batteries discharge to grid, balancing renewables and cutting storage and firm generation.

✅ Displaces costly stationary storage and firm generation

✅ Enables demand response and peak shaving at scale

✅ Supports renewable integration and grid reliability

Owners of electric vehicles (EVs) are accustomed to plugging into charging stations at home and at work and filling up their batteries with electricity from the power grid. But someday soon, when these drivers plug in, their cars will also have the capacity to reverse the flow and send electrons back to the grid. As the number of EVs climbs, the fleet’s batteries could serve as a cost-effective, large-scale energy source, with potentially dramatic impacts on the energy transition, according to a new paper published by an MIT team in the journal Energy Advances.

“At scale, vehicle-to-grid (V2G) can boost renewable energy growth, displacing the need for stationary energy storage and decreasing reliance on firm [always-on] generators, such as natural gas, that are traditionally used to balance wind and solar intermittency,” says Jim Owens, lead author and a doctoral student in the MIT Department of Chemical Engineering. Additional authors include Emre Gençer, a principal research scientist at the MIT Energy Initiative (MITEI), and Ian Miller, a research specialist for MITEI at the time of the study.

The group’s work is the first comprehensive, systems-based analysis of future power systems, drawing on a novel mix of computational models integrating such factors as carbon emission goals, variable renewable energy (VRE) generation, and costs of building energy storage, production, and transmission infrastructure.

“We explored not just how EVs could provide service back to the grid — thinking of these vehicles almost like energy storage on wheels providing flexibility — but also the value of V2G applications to the entire energy system and if EVs could reduce the cost of decarbonizing the power system,” says Gençer. “The results were surprising; I personally didn’t believe we’d have so much potential here.”

Displacing new infrastructure

As the United States and other nations pursue stringent goals to limit carbon emissions, electrification of transportation has taken off, with the rate of EV adoption rapidly accelerating. (Some projections show EVs supplanting internal combustion vehicles over the next 30 years.) With the rise of emission-free driving, though, there will be increased demand for energy on already stressed state power grids nationwide. “The challenge is ensuring both that there’s enough electricity to charge the vehicles and that this electricity is coming from renewable sources,” says Gençer.

But solar and wind energy is intermittent. Without adequate backup for these sources, such as stationary energy storage facilities using lithium-ion batteries, for instance, or large-scale, natural gas- or hydrogen-fueled power plants, achieving clean energy goals will prove elusive. More vexing, costs for building the necessary new energy infrastructure runs to the hundreds of billions.

This is precisely where V2G can play a critical, and welcome, role, the researchers reported. In their case study of a theoretical New England power system meeting strict carbon constraints, for instance, the team found that participation from just 13.9 percent of the region’s 8 million light-duty (passenger) EVs displaced 14.7 gigawatts of stationary energy storage. This added up to $700 million in savings — the anticipated costs of building new storage capacity.

Their paper also described the role EV batteries could play at times of peak demand, such as hot summer days. “With proper grid coordination practices in place, V2G technology has the ability to inject electricity back into the system to cover these episodes, so we don’t need to install or invest in additional natural gas turbines,” says Owens. “The way that EVs and V2G can influence the future of our power systems is one of the most exciting and novel aspects of our study.”

Modeling power

To investigate the impacts of V2G on their hypothetical New England power system, the researchers integrated their EV travel and V2G service models with two of MITEI’s existing modeling tools: the Sustainable Energy System Analysis Modeling Environment (SESAME) to project vehicle fleet and electricity demand growth, and GenX, which models the investment and operation costs of electricity generation, storage, and transmission systems. They incorporated such inputs as different EV participation rates, costs of generation for conventional and renewable power suppliers, charging infrastructure upgrades, travel demand for vehicles, changes in electricity demand, and EV battery costs.

Their analysis found benefits from V2G applications in power systems (in terms of displacing energy storage and firm generation) at all levels of carbon emission restrictions, including one with no emissions caps at all. However, their models suggest that V2G delivers the greatest value to the power system when carbon constraints are most aggressive — at 10 grams of carbon dioxide per kilowatt hour load. Total system savings from V2G ranged from $183 million to $1,326 million, reflecting EV participation rates between 5 percent and 80 percent.

“Our study has begun to uncover the inherent value V2G has for a future power system, demonstrating that there is a lot of money we can save that would otherwise be spent on storage and firm generation,” says Owens.

Harnessing V2G

For scientists seeking ways to decarbonize the economy, the vision of millions of EVs parked in garages or in office spaces and plugged into the grid via vehicle-to-building charging for 90 percent of their operating lives proves an irresistible provocation. “There is all this storage sitting right there, a huge available capacity that will only grow, and it is wasted unless we take full advantage of it,” says Gençer.

This is not a distant prospect. Startup companies are currently testing software that would allow two-way communication between EVs and grid operators or other entities. With the right algorithms, EVs would charge from and dispatch energy to the grid according to profiles tailored to each car owner’s needs, never depleting the battery and endangering a commute.

“We don’t assume all vehicles will be available to send energy back to the grid at the same time, at 6 p.m. for instance, when most commuters return home in the early evening,” says Gençer. He believes that the vastly varied schedules of EV drivers will make enough battery power available to cover spikes in electricity use over an average 24-hour period. And there are other potential sources of battery power down the road, such as electric school buses that are employed only for short stints during the day and then sit idle, with the potential to power buildings during peak hours.

The MIT team acknowledges the challenges of V2G consumer buy-in. While EV owners relish a clean, green drive, they may not be as enthusiastic handing over access to their car’s battery to a utility or an aggregator working with power system operators. Policies and incentives would help.

“Since you’re providing a service to the grid, much as solar panel users do, you could get paid to sell electricity back for your participation, and paid at a premium when electricity prices are very high,” says Gençer.

“People may not be willing to participate ’round the clock, but as states like California explore EVs for grid stability programs and incentives, if we have blackout scenarios like in Texas last year, or hot-day congestion on transmission lines, maybe we can turn on these vehicles for 24 to 48 hours, sending energy back to the system,” adds Owens. “If there’s a power outage and people wave a bunch of money at you, you might be willing to talk.”

“Basically, I think this comes back to all of us being in this together, right?” says Gençer. “As you contribute to society by giving this service to the grid, you will get the full benefit of reducing system costs, and also help to decarbonize the system faster and to a greater extent.”

Actionable insights

Owens, who is building his dissertation on V2G research, is now investigating the potential impact of heavy-duty electric vehicles in decarbonizing the power system. “The last-mile delivery trucks of companies like Amazon and FedEx are likely to be the earliest adopters of EVs,” Owen says. “They are appealing because they have regularly scheduled routes during the day and go back to the depot at night, which makes them very useful for providing electricity and balancing services in the power system.”

Owens is committed to “providing insights that are actionable by system planners, operators, and to a certain extent, investors,” he says. His work might come into play in determining what kind of charging infrastructure should be built, and where.

“Our analysis is really timely because the EV market has not yet been developed,” says Gençer. “This means we can share our insights with vehicle manufacturers and system operators — potentially influencing them to invest in V2G technologies, avoiding the costs of building utility-scale storage, and enabling the transition to a cleaner future. It’s a huge win, within our grasp.”

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Accelerate Kootenays EV charging stations expand along Highway 3, adding DC fast charging and Level 2 plugs to cut range anxiety for electric vehicles in B.C., linking communities like Castlegar, Greenwood, and the Alberta border.

Key Points

A regional network of DC fast and Level 2 chargers along B.C.'s Highway 3 to reduce range anxiety and boost EV adoption.

✅ 13 DC fast chargers plus 40 Level 2 stations across key hubs

✅ 20-minute charging stops reduce range anxiety on Highway 3

✅ Backed by BC Hydro, FortisBC, and regional districts

The Kootenays are B.C.'s electric powerhouse, and as part of B.C.'s EV push the region is making significant advances to put electric cars on the road.

The region's dams generate more than half of the province's electricity needs, but some say residents in the region have not taken to electric cars, for instance.

Trish Dehnel is a spokesperson for Accelerate Kootenays, a multi-million dollar coalition involving the regional districts of East Kootenay, Central Kootenay and Kootenay Boundary, along with a number of corporate partners including Fortis B.C. and BC Hydro.

She says one of the major problems in the region — in addition to the mountainous terrain and winter driving conditions — is "range anxiety."

That's when you're not sure your electric vehicle will be able to make it to your destination without running out of power, she explained.

Now, Accelerate Kootenays is hoping a set of new electric charging stations, part of the B.C. Electric Highway project expanding along Highway 3, will make a difference.

No more 'range anxiety'

The expansion includes 40 Level 2 stations and 13 DC Quick Charging stations, mirroring BC Hydro's expansion across southern B.C. strategically located within the region to give people more opportunities to charge up along their travel routes, Dehnel said.

"We will have DC fast-charging stations in all of the major communities along Highway 3 from Greenwood to the Alberta border. You will be able to stop at a fast-charging station and, thanks to faster EV charging technology, charge your vehicle within 20 minutes," she said.

Castlegar car salesman Terry Klapper — who sells the 2017 Chevy Bolt electric vehicle — says it's a great step for the region as sites like Nelson's new fast-charging station come online.

"I guarantee that you'll be seeing electric cars around the Kootenays," he said.

"The interest the public has shown … [I mean] as soon as people found out we had these Bolts on the lot, we've had people coming in every single day to take a look at them and say when can I finally purchase it."

The charging stations are set to open by the end of next year.

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Canada EV Incentives drive adoption toward the 2035 zero-emission target, with rebates, federal and provincial programs boosting affordability amid concerns over charging infrastructure, range anxiety, and battery life, according to a BNN Bloomberg-Leger survey.

Key Points

Canada EV incentives are rebates and tax credits reducing EV costs to accelerate zero-emission vehicle adoption nationwide.

✅ Federal and provincial rebates reduce EV purchase prices

✅ Incentives offset range, battery, and charging concerns

✅ Larger incentives correlate with higher adoption rates

If the federal government wants to meet its ambitious EV goals of having all cars and passenger trucks sold in Canada be zero emissions by 2035, it’s going to have to do something about the cost of these vehicles.

A new survey from BNN Bloomberg and RATESDOTCA has found that cost is the number one reason stopping Canadians from buying an electric car.

The survey, which was conducted by Leger Marketing earlier this month, asked 1,511 Canadians if they were planning to purchase a new electric vehicle in the near future. It found that just over one in four, or 26 per cent of Canadians, are planning to do so, with Atlantic Canada lagging other regions. On the other hand, 19 per cent of Canadians are planning to buy a gas/diesel/hybrid card for their next purchase. 

Those who aren’t planning on buying an EV were asked what the biggest reason for their decision was. By far, it was the price of these vehicles: 31 per cent of this group cited cost as the main reason for not electrifying their ride. Another 59 per cent of respondents cited it as a concern, but not the main one. Other reasons for not wanting to buy an electric vehicle included lack of infrastructure (18 per cent), range concerns (16 per cent), and battery life and replacement (13 per cent), and some report EV shortages and wait times too.

What’s interesting is that it’s clear that government incentives for EVs are the most powerful tool right now to drive adoption, though some argue subsidies are a bad idea for Canada. When asked if further government incentives would convince them to buy an electric vehicle, 78 per cent of those surveyed said yes.

That’s right. If more governments increased the incentives offered for buying electric vehicles, reaching the goal of only selling zero emission vehicles in Canada by 2035 would no longer be a pipe dream, despite 2035 mandate skepticism from some.

At the moment, only Quebec and B.C. offer government incentives to buy an electric vehicle, even as B.C. charging bottlenecks are predicted. The federal government offers up to a $5,000 incentive, with restrictions including a limit on the total price of the vehicle, and has signaled EV sales regulations are forthcoming. Ontario previously offered a rebate of up to $14,000, however, the popular program was cancelled when the Progress Conservative government was elected in 2018.

The cancellation led to a plunge in new electric vehicle sales in Ontario, falling more than 55 per cent in the first six months of 2019 when compared to the same time period in the previous year, according to Electric Mobility Canada.

It’s no surprise that the larger the incentive, the more Canadians will be swayed to buy an electric car. Perhaps what’s surprising is that the incentive doesn’t even have to be as large as the previous Ontario rebate was. The survey found that seven per cent of Canadians would buy an electric vehicle if they got an incentive ranging anywhere from $5,001-$7,250. A full 35 per cent said a $12,500 or higher incentive would convince them.

The majority of Canadians surveyed said they use their vehicles for leisure or commuting to work. Leisure uses include running errands and seeing friends and family, of which 43 per cent of respondents said was the primary way they used their vehicle. Meanwhile, 36 per cent said they primarily used their car to commute to work.

The survey also found that incentives were more effective at convincing younger people to buy an electric vehicle. Eighty-three per cent of those under the age of 55 could be swayed by new incentives. But for those over 55, only 66 per cent said they would change their mind. 

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EV Battery Manufacturing Emissions debunk viral claims with lifecycle analysis, showing lithium-ion production CO2 depends on grid mix and is offset by zero tailpipe emissions and renewable-energy charging over typical vehicle miles.

Key Points

EV lithium-ion pack production varies by grid mix; ~1-2 years of driving, then offset by zero tailpipe emissions.

✅ Battery CO2 depends on electricity mix and factory efficiency.

✅ 75 kWh pack ~4.5-7.5 t CO2; not equal to 8 years of driving.

✅ Lifecycle analysis: EVs cut GHG vs gas, especially with renewables.

Electric vehicles are touted as an environmentally friendly alternative to gasoline powered cars, but one Facebook post claims that the benefits are overblown, despite fact-checks of charging math to the contrary, and the vehicles are much more harmful to the planet than people assume.

A cartoon posted to Facebook on April 29, amid signs the EV era is arriving in many markets, shows a car in one panel with "diesel" written on the side and the driver thinking "I feel so dirty." In another panel, a car has "electric" written on its side with the driver thinking "I feel so clean."

However, the electric vehicle is shown connected to what appears to be a factory that’s blowing dark smoke into the air.

Below the cartoon is a caption that claims "manufacturing the battery for one electric car produces the same amount of CO2 as running a petrol car for eight years."

This isn’t a new line of criticism against electric vehicles, and reflects ongoing opinion on the EV revolution in the media. Similar Facebook posts have taken aim at the carbon dioxide produced in the manufacturing of electric cars — specifically the batteries — to make the case that zero emissions vehicles aren’t necessarily clean.

Full electric vehicles require a large lithium-ion battery to store energy and power the motor that propels the car, according to Insider. The lithium-ion battery packs in an electric car are chemically similar to the ones found in cell phones and laptops.

Because they require a mix of metals that need to be extracted and refined, lithium-ion batteries take more energy to produce than the common lead-acid batteries used in gasoline cars to help start the engine.

How much CO2 is emitted in the production depends on where the lithium-ion battery is made — or specifically, how the electricity powering the factory is generated, and national electricity profiles such as Canada's 2019 mix help illustrate regional differences — according to Zeke Hausfather, a climate scientist and director of climate and energy at the Breakthrough Institute, an environmental research think tank.

Producing a 75 kilowatt-hour battery for a Tesla Model 3, considered on the larger end of batteries for electric vehicles, would result in the emission of 4,500 kilograms of CO2 if it was made at Tesla's battery factory in Nevada. That’s the emissions equivalent to driving a gas-powered sedan for 1.4 years, at a yearly average distance of 12,000 miles, Hausfather said.

If the battery were made in Asia, manufacturing it would produce 7,500 kg of carbon dioxide, or the equivalent of driving a gasoline-powered sedan for 2.4 years — but still nowhere near the eight years claimed in the Facebook post. Hausfather said the larger emission amount in Asia can be attributed to its "higher carbon electricity mix." The continent relies more on coal for energy production, while Tesla’s Nevada factory uses some solar energy. 

"More than half the emissions associated with manufacturing the battery are associated with electricity use," Hausfather said in an email to PolitiFact. "So, as the electricity grid decarbonizes, emissions associated with battery production will decline. The same is not true for sedan tailpipe emissions."

The Facebook post does not mention the electricity needs and CO2 impact of factories that build gasoline or diesel cars and their components. 

Another thing the Facebook post omits is that the CO2 emitted in the production of the battery can be offset over a short time in an electric car by the lack of tailpipe emissions when it’s in operation. 

The Union of Concerned Scientists found in a 2015 report that taking into account electricity sources for charging, which have become greener in all states since then, an electric vehicle ends up reducing greenhouse gas emissions by about 50% compared with a similar size gas-powered car.

A midsize vehicle completely negates the carbon dioxide its production emits by the time it travels 4,900 miles, according to the report. For full size cars, it takes 19,000 miles of driving.

The U.S. Energy Department’s Office of Energy Efficiency and Renewable Energy also looked at the life cycle of electric vehicles — which includes a car’s production, use and disposal — and concluded they produce less greenhouse gases and smog than gasoline-powered vehicles, a conclusion consistent with independent analyses from consumer and energy groups.

The agency also found drivers could further lower CO2 emissions by charging with power generated by a renewable energy source, and drivers can also save money in the long run with EV ownership. 

Our ruling
A cartoon shared on Facebook claims the carbon dioxide emitted from the production of one electric car battery is the equivalent to driving a gas-powered vehicle for eight years.

The production of lithium-ion batteries for electric cars emits a significant amount of carbon dioxide, but nowhere near the level claimed in the cartoon. The emissions from battery production are equivalent to driving a gasoline car for one or two years, depending on where it’s produced, and those emissions are effectively offset over time by the lack of tailpipe emissions when the car is on the road. 

We rate this claim Mostly False.    

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Vehicle-to-Home (V2H) Power enables EVs to act as backup generators and home batteries, using bidirectional charging, inverters, and rooftop solar to cut energy costs, stabilize the grid, and provide resilient, outage-proof electricity.

Key Points

Vehicle-to-Home (V2H) Power lets EV batteries run household circuits via bidirectional charging and an inverter.

✅ Cuts energy bills using solar, time-of-use rates, and storage

✅ Provides resilient backup during outages, storms, and blackouts

✅ Enables grid services via V2G/V2H with smart chargers

When the power went out at Nate Graham’s New Mexico home last year, his family huddled around a fireplace in the cold and dark. Even the gas furnace was out, with no electricity for the fan. After failing to coax enough heat from the wood-burning fireplace, Graham’s wife and two children decamped for the comfort of a relative’s house until electricity returned two days later.

The next time the power failed, Graham was prepared. He had a power strip and a $150 inverter, a device that converts direct current from batteries into the alternating current needed to run appliances, hooked up to his new Chevy Bolt, an electric vehicle. The Bolt’s battery powered his refrigerator, lights and other crucial devices with ease. As the rest of his neighborhood outside Albuquerque languished in darkness, Graham’s family life continued virtually unchanged. “It was a complete game changer making power outages a nonissue,” says Graham, 35, a manager at a software company. “It lasted a day-and-a-half, but it could have gone much longer.”

Today, Graham primarily powers his home appliances with rooftop solar panels and, when the power goes out, his Chevy Bolt. He has cut his monthly energy bill from about $220 to $8 per month. “I’m not a rich person, but it was relatively easy,” says Graham “You wind up in a magical position with no [natural] gas, no oil and no gasoline bill.”

Graham is a preview of what some automakers are now promising anyone with an EV: An enormous home battery on wheels that can reverse the flow of electricity to power the entire home through the main electric panel.

Beyond serving as an emissions-free backup generator, the EV has the potential of revolutionizing the car’s role in American society, with California grid programs piloting vehicle-to-grid uses, transforming it from an enabler of a carbon-intensive existence into a key step in the nation’s transition into renewable energy.

Home solar panels had already been chipping away at the United States’ centralized power system, forcing utilities to make electricity transfer a two-way street. More recently, home batteries have allowed households with solar arrays to become energy traders, recharging when electricity prices are low, replacing grid power when prices are high, and then sell electricity back to the grid for a profit during peak hours.

But batteries are expensive. Using EVs makes this kind of home setup cheaper and a real possibility for more Americans as the American EV boom accelerates nationwide.

So there may be a time, perhaps soon, when your car not only gets you from point A to point B, but also serves as the hub of your personal power plant.

I looked into new vehicles and hardware to answer the most common questions about how to power your home (and the grid) with your car.

Why power your home with an EV battery

America’s grid is not in good shape. Prices are up and reliability is down, and many state power grids face new challenges from rising EV adoption. Since 2000, the number of major outages has risen from less than two dozen to more than 180 per year, based on federal data, the Wall Street Journal reports. The average utility customer in 2020 endured about eight hours of power interruptions, double the previous decade.

Utilities’ relationship with their customers is set to get even rockier. Residential electricity prices, which have risen 21 percent since 2008, are predicted to keep climbing as utilities spend more than $1 trillion upgrading infrastructure, erecting transmission lines for renewable energy and protecting against extreme weather, even though grids can handle EV loads with proper management and planning.

U.S. homeowners, increasingly, are opting out. About 8 percent of them have installed solar panels. An increasing number are adding home batteries from companies such as LG, Tesla and Panasonic. These are essentially banks of battery cells, similar to those in your laptop, capable of storing energy and discharging electricity.

EnergySage, a renewable energy marketplace, says two-thirds of its customers now request battery quotes when soliciting bids for home solar panels, and about 15 percent install them. This setup allows homeowners to declare (at least partial) independence from the grid by storing and consuming solar power overnight, as well as supplying electricity during outages.

But it doesn’t come cheap. The average home consumes about 20 kilowatt-hours per day, a measure of energy over time. That works out to about $15,000 for enough batteries on your wall to ensure a full day of backup power (although the net cost is lower after incentives and other potential savings).

How an EV battery can power your home

Ford changed how customers saw their trucks when it rolled out a hybrid version of the F-150, says Ryan O’Gorman of Ford’s energy services program. The truck doubles as a generator sporting as many as 11 outlets spread around the vehicle, including a 240-volt outlet typically used for appliances like clothes dryers. During disasters like the 2021 ice storm that left millions of Texans without electricity, Ford dealers lent out their hybrid F-150s as home generators, showing how mobile energy storage can bring new flexibility during outages.

The Lightning, the fully electric version of the F-150, takes the next step by offering home backup power. Under each Lightning sits a massive 98 kWh to 131 kWh battery pack. That’s enough energy, Ford estimates, to power a home for three days (10 days if rationing). “The vehicle has an immense amount of power to move that much metal down the road at 80 mph,” says O’Gorman.

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

Key Points

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

✅ Converts low-grade heat fluctuations into usable power

✅ Thin-film design suits microelectronics and edge devices

✅ Alternative to thermoelectrics for waste heat recovery

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

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

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

#google#

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

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

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

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