Electric truck fleets will need a lot of power, but utilities aren't planning for it


tesla truck

Arc Flash Training - CSA Z462 Electrical Safety

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

As more electric buses and trucks enter the market, future fleets will require a lot of electricity for charging. While some utilities in California and elsewhere are planning for an increase in power demand, many have yet to do so and need to get started.

This issue is critical, because freight trucks emit more than one-quarter of all vehicle emissions. Recent product developments offer growing opportunities to electrify trucks and buses and slash their emissions (see our recent white paper). And just last week, a group of 15 states plus D.C. announced plans to fully electrify truck sales by 2050. Utilities will need to be ready to power electric fleets.

Electric truck fleets need substantial power
Power for trucks and buses is generally more of an issue than for cars because trucks typically have larger batteries and because trucks and buses are often parts of fleets with many vehicles that charge at the same location. For example, a Tesla Model 3 battery stores 54-75 kWh; a Proterra transit bus battery stores 220-660 kWh. In Amsterdam, a 100-bus transit fleet is powered by a set of slow and fast chargers that together have a peak load of 13 MW (megawatts). This is equivalent to the power used by a typical large factory. And they are thinking of expanding the fleet to 250 buses.

California utilities are finding that grid capacity is often adequate in the short term, but that upgrade needs likely will grow in the medium term.
Many other fleets also will need a lot of "juice." For example, a rough estimate of the power needed to serve a fleet of 200 delivery vans at an Amazon fulfillment center is about 4 MW. And for electric 18-wheelers, chargers may need up to 2 MW of power each; a recent proposal calls for charging stations every 100 miles along the U.S. West Coast’s I-5 corridor, each with a peak load of 23.5 MW.

Utilities need distribution planning
These examples show the need for more power at a given site than most utilities can provide without planning and investment. Meeting these needs often will require changes to primary and secondary power distribution systems (feeders that deliver power to distribution transformers and to end customers) and substation upgrades. For large loads, a new substation may be needed. A paper recently released by the California Electric Transportation Coalition estimates that for loads over 5 MW, distribution system and substation upgrades will be needed most of the time. According to the paper, typical utility costs are $1 million to $9 million for substation upgrades, $150,000 to $6 million for primary distribution upgrades, and $5,000 to $100,000 for secondary distribution upgrades. Similarly, Black and Veatch, in a paper on Electric Fleets, also provides some general guidance, shown in the table below, while recognizing that each site is unique.

California policy pushes utilities toward planning
In California, state agencies and a statewide effort called CALSTART have been funding demonstration projects and vehicle and charger purchases for several years. The California Air Resources Board voted in June to phase in zero-emission requirements for truck sales, mandating that, beginning in 2024, manufacturers must increase their zero-emission truck sales to 30-50 percent by 2030 and 40-75 percent by 2035. By 2035, more than 300,000 trucks will be zero-emission vehicles.

California utilities operate programs that work with fleet owners to install the necessary infrastructure for electric vehicle fleets. For example, Southern California Edison operates the Charge Ready Transport program for medium- and heavy-duty fleets. Normally, when customers request new or upgraded service from the utility, there are fees associated with the new upgrade. With Charge Ready, the utility generally pays these costs, and it will sometimes pay half the cost of chargers; the customer is responsible for the other half and for charger installation costs. Sites with at least two electric vehicles are eligible, but program managers report that at least five vehicles are often needed for the economics to make sense for the utility.

One way to do this is to develop and implement a phased plan, with some components sized for future planned growth and other components added as needed. Southern California Edison, for example, has 24 commitments so far, and has a five-year goal of 870 sites, with an average of 10 chargers per site. The utility notes that one charger usually can serve several vehicles and that cycling of charging, some storage, and other load management techniques can reduce capacity needs (a nominal 10 MW load often can be reduced below 5 MW).

Through this program, utility representatives are regularly talking with fleet operators, and they can use these discussions to help identify needed upgrades to the utility grid. For example, California transit agencies are doing the planning to meet a California Air Resources Board mandate for 100 percent electric or fuel cell buses by 2040; utilities are talking with the agencies and their consultants as part of this process. California utilities are finding that grid capacity is often adequate in the short term, but that upgrade needs likely will grow in the medium term (seven to 10 years out). They can manage grid needs with good planning (school buses generally can be charged overnight and don’t need fast chargers), load management techniques and some battery storage to address peak needs.

Customer conversations drive planning elsewhere
We also spoke with a northeastern utility (wishing to be unnamed) that has been talking with customers about many issues, including fleets. It has used these discussions to identify a few areas where grid upgrades might be needed if fleets electrify. It is factoring these findings into a broader grid-planning effort underway that is driven by multiple needs, including fleets. Even within an integrated planning effort, this utility is struggling with the question of when to take action to prepare the electric system for fleet electrification: Should it act on state or federal policy? Should it act when the specific customer request is submitted, or is there something in between? Recognizing that any option has scheduling and cost allocation implications, it notes that there are no easy answers.

Many utilities need to start paying attention
As part of our research, we also talked with several other utilities and found that they have not yet looked at how fleets might relate to grid planning. However, several of these companies are developing plans to look into these issues in the next year. We also talked with a major truck manufacturer, also wishing to remain unnamed, that views grid limitations as a key obstacle to truck electrification. 

Based on these cases, it appears that fleet electrification can have a substantial impact on electric grids and that, while these impacts are small at present, they likely will grow over time. Fleet owners, electric utilities, and utility regulators need to start planning for these impacts now, so that grid improvements can be made steadily as electric fleets grow. Fleet and grid planning should happen in parallel, so that grid upgrades do not happen sooner or later than needed but are in place when needed. These grid impacts can be managed and planned for, but the time to begin this planning is now.

Related News

Low-emissions sources are set to cover almost all the growth in global electricity demand in the next three years

The world’s electricity demand growth slowed only slightly in 2022, despite headwinds from the energy crisis, and is expected to accelerate in the years ahead

Renewables are set to dominate the growth of the world’s electricity supply over the next three years as together with nuclear power they meet the vast majority of the increase in global demand through to 2025, making significant rises in the power sector’s carbon emissions unlikely, according to a new IEA report.

After slowing slightly last year to 2% amid the turmoil of the global energy crisis and exceptional weather conditions in some regions, the growth in world electricity demand is expected to accelerate to an average of 3% over the next three years, the IEA’s Electricity Market Report 2023 finds. Emerging and developing economies in Asia are the driving forces behind this faster pace, which is a step up from average growth of 2.4% during the years before the pandemic.

More than 70% of the increase in global electricity demand over the next three years is expected to come from China, India and Southeast Asia, although considerable uncertainties remain over trends in China as its economy emerges from strict Covid restrictions. China’s share of global electricity consumption is currently forecast to rise to a new record of one-third by 2025, up from one-quarter in 2015. At the same time, advanced economies are seeking to expand electricity use to displace fossil fuels in sectors such as transport, heating and industry.

“The world’s growing demand for electricity is set to accelerate, adding more than double Japan’s current electricity consumption over the next three years,” said IEA Executive Director Fatih Birol. “The good news is that renewables and nuclear power are growing quickly enough to meet almost all this additional appetite, suggesting we are close to a tipping point for power sector emissions. Governments now need to enable low-emissions sources to grow even faster and drive down emissions so that the world can ensure secure electricity supplies while reaching climate goals.”

While natural gas-fired power generation in the European Union is forecast to fall in the coming years, based on current trends, significant growth in the Middle East is set to partly offset this decrease. Sharp spikes in natural gas prices amid the energy crisis have in turn fuelled soaring electricity prices in some markets, particularly in Europe, prompting debate in policy circles over reforms to power market design.

Meanwhile, expected declines in coal-fired generation in Europe and the Americas are likely to be matched by a rise in the Asia-Pacific region, despite increases in nuclear power deployment and restarts of plants in some countries such as Japan. This means that after reaching an all-time high in 2022, carbon dioxide (CO2) emissions from global power generation are set to remain around the same level through 2025.

The strong growth of renewables means their share of the global power generation mix is forecast to rise from 29% in 2022 to 35% in 2025, with the shares of coal- and gas-fired generation falling. As a result, the CO2 intensity of global power generation will continue to decrease in the coming years. Europe bucked this global trend last year, however. The CO2 intensity of Europe’s power generation increased as a result of higher use of coal and gas amid steep drops in output from both hydropower, due to drought, and nuclear power, due to plant closures and maintenance. This setback will be temporary, though, as Europe’s power generation emissions are expected to decrease on average by about 10% a year through 2025.

Electricity demand trends varied widely by region in 2022. India’s electricity consumption rose strongly, while China’s growth was more subdued due to its zero-Covid policy weighing heavily on economic activity. The United States recorded a robust increase in demand, driven by economic activity and higher residential use amid hotter summer weather and a colder-than-normal winter.

Demand in the European Union contracted due to unusually mild winter weather and a decline in electricity consumption in the industrial sector, which significantly scaled back production because of high energy prices and supply disruptions caused by Russia’s invasion of Ukraine. The 3.5% decrease in EU demand was its second largest percentage decline since the global financial crisis in 2009, with the largest being the exceptional contraction due to the Covid shock in 2020.

The new IEA report notes that electricity demand and supply worldwide are becoming increasingly weather dependent, with extreme conditions a recurring theme in 2022. In addition to the drought in Europe, there were heatwaves in India, resulting in the country’s highest ever peak in power demand. Similarly, central and eastern regions of China were hit by heatwaves and drought, which caused demand for air conditioning to surge amid reduced hydropower generation in Sichuan province. The United States also saw severe winter storms in December, triggering massive power outages.

These highlight the need for faster decarbonisation and accelerated deployment of clean energy technologies, the report says. At the same time, as the clean energy transition gathers pace, the impact of weather events on electricity demand will intensify due to the increased electrification of heating, while the share of weather-dependent renewables will continue to grow in the generation mix. In such a world, increasing the flexibility of power systems while ensuring security of supply and resilience of networks will be crucial.

View more

Centrica acquires battery storage project that could "unlock North Sea wind energy potential"

CENTRICA Business Solutions has secured the development rights for a fully consented 30MW 2hr battery storage plant in Aberdeenshire that will help maximise the use of renewable energy in the Scottish North Sea.

The site in Dyce, near Aberdeen is located near a connection for North Sea offshore wind farms and will contribute towards managing network constraints – by storing electricity when it is abundant for times when it is not, helping improve the energy independence of the UK and reduce our reliance on fossil fuels. 

Last year, the National Grid paid £244million to wind farm operators to shut down turbines, as they risked overloading the network, a process known as curtailment. Battery storage is one method of helping to utilise that wasted energy resource, ensuring fewer green electrons are curtailed. 

Once built, the 30MW 2hr Dyce battery storage plant will store enough energy to power 70,000 homes for an hour. This discharge happens up to four hours per day.

The project was developed by Cragside Energy Limited, backed by Omni Partners LLP, and obtained planning consent in November 2021. The go-live date for the project is mid-2024, construction should last eight months and will be aligned with the grid connection date.

“Battery storage can play a strategic role in helping to transition away from fossil fuels, by smoothing out the peaks and troughs associated with renewable energy generation,” said Bill Rees, Director of Centrica Energy Assets. “We should treat renewable energy like a precious resource and projects like this can help to maximise its efficacy.” 

The project forms part of Centrica Energy Assets’ plan to deliver 900MW of solar and battery storage assets by 2026. Centrica already owns and operates the 49MW fast response battery at Roosecote, Cumbria. 

Centrica Business Solutions Managing Director Greg McKenna, said: “Improving the energy independence of the UK is essential to help manage energy costs and move away from fossil fuels. The Government has set a target of a green electricity grid by 2035 – that’s only achievable if we build out the level of flexibility in the system, to help manage supply and demand.”

Centrica Energy Assets will work with Cragside Energy to identify new opportunities in the energy storage space. Cragside Energy’s growing pipeline exceeds 200MW, and focuses on low carbon and flexible assets, including energy storage, solar and peaking plant schemes.

Ben Coulston, Director of Cragside Energy, added: “Targeted investment into a complementary mix of technology and infrastructure is crucial if the UK is to fully harness its renewable energy potential. Battery storage, such as the project in Dyce, will contribute to the upkeep of a stable and resilient network and we have enjoyed partnering with Centrica as the project transitions into the next phase”.

View more

Ottawa to release promised EV sales regulations

Canadian Automobile manufacturers are on the brink of significant changes as Ottawa prepares to introduce its long-awaited electric vehicle regulations. A reliable source within the government says final regulations are aimed at ensuring that all new passenger vehicles sold in Canada by 2035 are zero-emission vehicles.

These regulations, known as the Electric Vehicle Availability Standard, are designed to encourage automakers to produce more affordable zero-emission vehicles to meet the increasing demand. One of the key concerns for Canada is the potential dominance of zero-emission vehicle supply by other countries, particularly the United States, where several states have already implemented sales targets for such vehicles.

It's important to note that these regulations will apply primarily to automakers, rather than dealerships. Under this legislation, manufacturers will be required to accumulate sufficient credits to demonstrate their compliance with the established targets.

Automakers will be able to earn credits based on their sales of low- and no-emissions vehicles. The number of credits earned will depend on how close these vehicles come to meeting a zero-emissions standard. Additionally, manufacturers could earn early credits, amounting to a maximum of 10 percent of their total compliance requirements for 2026, by introducing more electric vehicles to the market ahead of schedule.

Automakers can also increase their credit balance by contributing to the development of electric vehicle charging infrastructure. In cases where companies exceed or fall short of their compliance targets, they will have the option to buy or sell credits to other manufacturers or use previously accumulated credits.

Further details regarding these regulations, which will be enacted under the Canadian Environmental Protection Act, are set to be unveiled soon.

These regulations will become effective starting with the model year 2026, and sales targets will progressively rise each year until 2035. The federal government's ambitious goal is to have 20 percent of all vehicles sold in Canada be zero-emission vehicles by 2026, with that figure increasing to 60 percent by 2030 and reaching 100 percent by 2035.

According to a government analysis conducted in 2022, the anticipated total cost to consumers for zero-emission vehicles and chargers over 25 years is estimated at $24.5 billion. However, it is projected that Canadians will save approximately $33.9 billion in net energy costs over the same period. Please note that these estimates are part of a draft and may be subject to change upon the government's release of its final analysis.

In terms of environmental impact, these regulations are expected to prevent the release of an estimated 430 million tonnes of greenhouse gas emissions, according to regulatory analysis. Environmental Defence, a Canadian environmental think-tank, has estimated that the policy would also result in a substantial reduction in gasoline consumption, equivalent to filling approximately 73,000 Olympic-sized swimming pools with gasoline.

Nate Wallace, the program manager for clean transportation at Environmental Defence, emphasized the significance of these regulations, stating, "2035 really needs to be the last year that we are selling gasoline cars in Canada brand new if we're going to have any chance of actually, by 2050, reaching net-zero carbon emissions."

View more

Opinion | Why Electric Mail Trucks Are the Way of the Future

The U.S. Postal Service faces serious challenges, with billions of dollars in annual losses and total mail volume continuing to decline. Meanwhile, Congress is constantly hamstringing the agency.

But now lawmakers have an opportunity to invest in the Postal Service in a way that would pay dividends for years to come: By electrifying the postal fleet.

Tucked inside the massive social spending and climate package lumbering through the Senate is money for new, cleaner postal delivery trucks. There’s a lot to like about electric postal trucks. They’d significantly improve Americans’ health while also slowing climate change. And it just makes sense for taxpayers over the long term; the Postal Service’s private sector competitors have already made similar investments. As Democrats weigh potential areas to cut in President Joe Biden’s Build Back Better plan, this is one provision that should escape the knife.

To call the U.S. Postal Service’s current vehicles “clunkers” would be an understatement. These often decades-old trucks are famous for having no airbags, no air conditioning and a nasty habit of catching fire. So the Postal Service’s recent decision to buy 165,000 replacement trucks is basically a no-brainer. But the main question is whether they will run on electricity or gasoline.

Electric vehicles are newer to the market and still carry a higher sticker price. But that higher price buys concrete benefits, like lower lifetime fuel and maintenance costs and huge reductions in pollution. Government demand for electric trucks will also push private markets to create better, cheaper vehicles, directly benefiting consumers. So while buying electric postal trucks may be somewhat more costly at first, over the long term, failing to do so could be far costlier.

At some level, this is a straightforward business decision that the Postal Service’s competitors have already made. For instance, Amazon has already deployed some of the 100,000 electric vans it recently ordered, and FedEx has promised a fully electric ground fleet by 2040. In a couple of decades, the Postal Service could be the only carrier still driving dirty gas guzzlers, buying expensive fuel and paying the higher maintenance costs that combustion engines routinely require. Consumers could flock to greener competitors.

Beyond these business advantages, zero-emission vehicles carry other big benefits for the public. The Postal Service recently calculated some of these benefits by estimating the climate harms that going all-electric would avoid. Its findings were telling: A fully electric fleet would prevent millions or tens of millions of dollars’ worth of climate-change-related harms to property and human health each year of the trucks’ lifetimes (and this is probably a considerable underestimate). The world leaders that recently gathered at the global climate summit in Glasgow encouraged exactly this type of transition toward low-carbon technologies.

A cleaner postal fleet would benefit Americans in many other important ways. In addition to warming the planet, tailpipe pollutants can have dire health consequences for the people who breathe in the fumes. Mail trucks traverse virtually every neighborhood in the country and often must idle in residential areas, so we all benefit when they stop emitting. And these localized harms are not distributed equally. Some parts of the country — too often, low-income communities of color — already have poor air quality. Removing pollution from dirty mail trucks will especially help these overburdened and underserved populations.

The government’s purchasing power also routinely inspires companies to devise better and cheaper ways to do business. Investments in aerospace technologies, for instance, have spilled over into consumer innovations, giving us GPS technologies and faster, more fuel-efficient passenger jets. Bulk demand for cleaner trucks could inspire similar innovations as companies clamor for government contracts, meaning we all could get cheaper and better green products like car batteries.

Additionally, because postal trucks are virtually everywhere in the country, if they go electric, that would mean more charging stations and grid updates everywhere too. Suddenly, that long road trip that discourages many would-be electric car buyers may be simpler, which could boost electric vehicle adoption.

White House climate adviser Gina McCarthy talks with EVgo CEO Cathy Zoi before the start of an event near an EVgo electric car charging station.
ENERGY

The case for electrifying the postal fleet is strong from both a business and a social standpoint. Indeed, even Postmaster General Louis DeJoy, who was appointed during the Trump administration, supports it. But getting there is not so simple. Most private businesses could just borrow the money they need for this investment and pay it back with the long-term savings they would enjoy. But not the Postal Service. Thanks to its byzantine funding structure, it cannot afford electric trucks’ upfront costs unless Congress either provides the money or lets it borrow more. This is the primary reason it has not committed to making more than 10 percent of its fleet electric.

And that returns us to the Build Back Better legislation. The version passed by the House sets aside $7 billion to help the Postal Service buy electric mail trucks — enough to electrify the vast majority of its fleet by the end of the decade.

Biden has made expanding the use of electric vehicles a top priority, setting an ambitious goal of 100 percent zero-emission federal vehicle acquisitions by 2035. But Sen. Joe Manchin has expressed resistance to some of the climate-related subsidies in the legislation and is also eager to keep costs down. This provision, however, is worthy of the West Virginia Democrat’s support.

Most Americans would see — and benefit from — these trucks on a daily basis. And for an operation that got its start under Benjamin Franklin, it’s a crucial way to keep the Postal Service relevant.

View more

"World?s Most Powerful? Tidal Turbine Starts Pumping Green Electricity To Onshore Grid

“The world’s most powerful” tidal turbine has been hooked up to the onshore electricity grid in Orkney, a northerly archipelago in Scotland, and is ready to provide homes with clean, green electricity. 

The tidal turbine, known as the O2, was developed by Scottish engineering firm Orbital Marine Power. On July 28, they announced O2 “commenced grid connected power generation” at the European Marine Energy Centre (EMEC) in Orkney, meaning it's all set up and providing energy to the local power grid. 

The 74-meter-long (242-foot) turbine is said to be “the world’s most powerful” tidal turbine. It will lay in the waters off Orkney for the next 15 years with the capacity to meet the annual electricity demand of around 2,000 UK homes. The 2MW turbine is also set to power the EMEC’s land-based electrolyzer that will generate green hydrogen (hydrogen made without fossil fuels) that can also be used as a clean energy source.

“Our vision is that this project is the trigger to the harnessing of tidal stream resources around the world to play a role in tackling climate change whilst creating a new, low-carbon industrial sector,” Orbital CEO, Andrew Scott, said in a press release.

Tidal energy is harnessed by converting energy from the natural rise and fall of ocean tides and currents. The O2 turbine consists of two submerged blades with a 20-meter (65-foot) diameter attached to a turbine that will move with the shifting currents of Orkney’s coast to generate electricity. Electricity is then transferred from the turbine along the seabed via cables towards the local onshore electricity network. 


This method of harnessing energy is not just desirable because it doesn't release carbon emissions, but it’s more predictable than other renewable energy sources, such as solar or wind energy, which can be influenced by weather conditions. Tidal energy production is still in its infancy and there are relatively few large-scale tidal power plants in the world, but many argue that some parts of the world could potentially draw huge benefits from this innovative form of hydropower, especially coastal regions with strong currents such as the northern stretches of the UK. 

The largest tidal power operation in the world is the Sihwa Lake project on the west coast of South Korea, which harnesses enough power to support the domestic needs of a city with a population of 500,000 people. However, once fully operational, the MeyGen tidal power project in northern Scotland hopes to snatch its title. 

View more

ABB claims its Terra 360 is the "world's fastest electric car charger"

Swiss company ABB, which supplies EV chargers to Ionity and Electrify America, has unveiled what it calls the "world's fastest electric car charger." As its name suggests, the Terra 360 has a 360 kW capacity, meaning it could fully charge a (theoretical) EV in 15 minutes. More realistically, it can charge four vehicles simultaneously, saving space at charging stations. 

The Terra 360 isn't the most powerful charger by much, as companies like Electrify America, Ionity and EVGo have been using 350 kW chargers manufactured by ABB and others since at least 2018. However, it's the "only charger designed explicitly to charge up to four vehicles at once," the company said. "This gives owners the flexibility to charge up to four vehicles overnight or to give a quick refill to their EVs in the day." They also have a relatively small footprint, allowing installation in small depots or parking lots. 

There aren't a lot of EVs that can handle that kind of charge. The only two approaching it are Porsche's Taycan, with 270 kW of charging capacity and the new Lucid Air, which allows for up to 300 kW fast-charging. Tesla's Model 3 and Model Y EVs can charge at up to 250 kW, while Hyundai's Ioniq 5 is rated for 232 kW DC fast charging. 

Such high charging levels aren't necessarily great for an EV's battery. Porsche, for instance, has a battery preservation setting on its Plug & Charge Taycan feature that lowers power to 200 kW from the maximum 270 kW allowed — so it's essentially acknowledging that faster charging degrades the battery. On top of that, extreme charging levels don't necessarily save you much time, as Car and Driver found. Tesla recently promised to upgrade its own Supercharger V3 network from 250kW to 300kW. 

ABB's new chargers will be able to add 100 km (62 miles) of range in less than three minutes. They'll arrive in Europe by the end of the year and start rolling out in the US and elsewhere in 2022.

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