Ontario Making it Easier to Build Electric Vehicle Charging Stations


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Ontario EV Charger Streamlining accelerates public charging connections with OEB-led standardized forms, firm timelines, and utility coordination, leveraging Ontario’s clean electricity grid to expand reliable infrastructure across urban, rural, and northern communities.

 

Key Points

An OEB-led, provincewide procedure that standardizes EV charger connections and accelerates public charging.

✅ Standardized forms, data, and responsibilities across 58 utilities

✅ Firm timelines for studies, approvals, and grid connection upgrades

✅ Supports rural, northern, highway, and community charging expansion

 

The Ontario government is making it easier to build and connect new public electric vehicle (EV) chargers to the province’s world-class clean electricity grid. Starting May 27, 2024, all local utilities will follow a streamlined process for EV charging connections that will make it easier to set up new charging stations and, as network progress to date shows, support the adoption of electric vehicles in Ontario.

“As the number of EV owners in Ontario continues to grow, our government is making it easier to put shovels in the ground to build the critical infrastructure needed for drivers to charge their vehicles where and when they need to,” said Todd Smith, Minister of Energy. “This is just another step we are taking to reduce red tape, increase EV adoption, and use our clean electricity supply to support the electrification of Ontario’s transportation sector.”

Today, each of Ontario’s 58 local electricity utilities have different procedures for connecting new public EV charging stations, with different timelines, information requirements and responsibilities for customers.

In response to Minister Smith’s Letter of Direction, which called on the Ontario Energy Board (OEB) to take steps to facilitate the efficient integration of EV’s into the provincial electricity system, including vehicle-to-building charging applications, the OEB issued provincewide, streamlined procedures that all local utilities must follow for installing and connecting new EV charging infrastructure. This new procedure includes the implementation of standardized forms, timelines, and information requirements which will make it easier for EV charging providers to deploy chargers in all regions of the province.

“Our government is paving the way to an electric future by building the EV charging infrastructure drivers need, where they need it,” said Prabmeet Sarkaria, Minister of Transportation. “By increasing the accessibility of public EV charging stations across the province, including for rural and northern communities, we are providing more sustainable and convenient travel options for drivers.”

“Having attracted over $28 billion in automotive investments in the last three years, our province is a leading jurisdiction in the global production and development of EVs,” said Vic Fedeli, Minister of Economic Development, Job Creation and Trade. “By making it easier to build public charging infrastructure, our government is supporting Ontario’s growing end-to-end EV supply chain and ensuring EV drivers can confidently and conveniently power their journeys.”

This initiative is part of the government’s larger plan to support the adoption of electric vehicles and make EV charging infrastructure more accessible, which includes:

  • The EV ChargeON program – a $91 million investment to support the installation of public EV chargers, including emerging V1G chargers to support grid-friendly deployment, outside of Ontario’s large urban centres, including at community hubs, Ontario’s highway rest areas, carpool parking lots, and Ontario Parks.
  • The new Ultra-Low Overnight price plan which allows customers who use more electricity at night, including those charging their EV, to save up to $90 per year by shifting demand to the ultra-low overnight rate period when provincewide electricity demand is lower and to participate in programs that let them sell electricity back to the grid when appropriate.
  • Making it more convenient for electric vehicle (EV) owners to travel the province with EV fast chargers now installed at all 20 renovated ONroute stations along the province’s busiest highways, the 400 and 401.

The initiative also builds on the government’s Driving Prosperity: The Future of Ontario’s Automotive Sector plan which aims to create a domestic EV battery ecosystem in the province, expand energy storage capacity, and position Ontario as a North American automotive innovation hub by working to support the continued transition to electric, low carbon, connected and autonomous vehicles.

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Nova Scotia EV Charging Infrastructure Faces Urgent Upgrade Needs

Nova Scotia EV charging infrastructure remains limited, with only 14 fast chargers across the province. As electric vehicle adoption grows, urgent upgrades are needed to support long-distance travel and public charging convenience.

 

Nova Scotia EV charging infrastructure

Nova Scotia EV charging infrastructure refers to the province’s public and private network of stations that power electric vehicles (EVs).

✅ Limited availability of fast-charging stations for long-distance travel

✅ Growing demand as EV adoption increases province-wide

✅ Key factor in reducing range anxiety and promoting clean transportation

 

Nova Scotia’s EV charging network is struggling to keep pace with a growing fleet of electric vehicles. As of today, only 14 public DC fast chargers are operational across the province, a significant shortfall for drivers navigating long distances. This creates not only logistical hurdles but also growing consumer hesitation — particularly as EV sales continue to surge across Canada.

In response, the Canadian government has announced a $1.1 million (US$0.88 million) investment into a new smart-charging pilot program. Led by Nova Scotia Power, this initiative will explore how electric vehicles can better integrate with the local grid using a centralized, utility-managed control system. Up to 200 participants are expected to join the program, which aims to test both smart charging and vehicle-to-grid (V2G) technologies.

These systems allow EVs to act as distributed energy storage, helping to manage electricity demand and improve renewable energy integration — a strategy already being tested in other jurisdictions. For example, Ontario’s charging network expansion has provided a model for scaling fast-charging accessibility. Similarly, British Columbia has recently accelerated its rollout of faster charging stations to support mass EV adoption.

The Nova Scotia pilot will assess local EV charging behaviors, including drivers’ willingness to participate in V2G services based on incentives, driving patterns, and access to clean power. “We know customers want clean, affordable, reliable energy for their homes and businesses,” says Dave Landrigan, VP Commercial at Nova Scotia Power. “Through our electric vehicle smart charging pilot, we will test these technologies to learn how they can benefit all customers, creating clean, smarter options without changing a person’s driving habits.”

The funding comes through Natural Resources Canada’s Electric Vehicle Infrastructure Demonstration program, which supports the development of cutting-edge charging and hydrogen refueling solutions across the country. To date, the federal government has invested over $600 million to support EV affordability and infrastructure deployment, with a particular focus on a coast-to-coast fast-charging network.

At the same time, other provinces are stepping up their leadership roles. In Québec, Hydro-Québec is expanding its EV ecosystem through a strategic partnership with Propulsion Québec, a key industry cluster for sustainable mobility. Their focus includes reliable public charging, clean grid integration, and stakeholder collaboration — all essential factors for scalable transportation electrification.

“In Québec, we are fortunate to be able to make transportation electrification possible by easily replacing gas imported from outside with our clean energy,” said France Lampron, Director – Transportation Electrification at Hydro-Québec. “To do this, we need to develop synergies between various stakeholders in the sustainable mobility sector.”

While Nova Scotia’s current fast-charging availability is limited, the province now has an opportunity to follow a similar trajectory. With funding in place, stakeholder alignment, and public interest growing, the expansion of Nova Scotia EV charging infrastructure could soon match the pace of rising EV demand. As governments and utilities nationwide focus on electrification, Nova Scotia’s pilot may lay the groundwork for a more connected, cleaner transportation future.

 

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France's new EV incentive rules toughen market for Chinese cars

France EV Incentive Rules prioritize EU-made electric vehicles, tying subsidies to manufacturing emissions and carbon footprint, making Stellantis, Renault, and Tesla Model Y eligible while excluding many China-built models under a new eligibility list.

 

Key Points

Links EV subsidies to manufacturing emissions, favoring EU-made models and restricting many China-built cars.

✅ Subsidies tied to lifecycle manufacturing emissions.

✅ EU production favored; many China-built EVs excluded.

✅ Eligible: Stellantis, Renault, Tesla Model Y; not Model 3.

 

France's revamped new EV rules on consumer cash incentives for electric car purchases favour vehicles made in France and Europe over models manufactured in China, a government list of eligible car types published recently has showed.

Some 65% of electric cars sold in France will be eligible for the scheme, which from Friday will include new criteria covering the amount of carbon emitted in the manufacturing of an electric vehicle (EV).

The list of eligible models includes 24 produced by Franco-Italian group Stellantis (STLAM.MI) and five by French carmaker Renault (RENA.PA). Elon Musk's Tesla (TSLA.O) Model Y will be eligible but not its Model 3.

Electric vehicle brand MG Motors, owned by China's SAIC, said it expects the new rules to weigh on the French EV market, despite the global surge in EV sales seen in recent years.

"There are cars that will entirely lose their competitiveness", an MG spokesperson told Reuters, adding that the brand had decided not to apply for the bonus scheme for its MG4 model because it was "designed to exclude us".

French Finance Minister Bruno Le Maire hailed what he called the new rules' incentive for automakers to reduce their carbon footprint.

"We will no longer be subsidising car production that emits too much CO2," he said in a statement.

President Emmanuel Macron's government has wanted to make French and European-made EVs more affordable for domestic consumers relative to cheaper vehicles produced in China, amid a record EV market share in the country.

The average retail price of an EV in Europe, even as the EU EV share grew during lockdown months, was more than 65,000 euros ($71,000) in the first half of 2023, compared with just over 31,000 euros in China, according to research by Jato Dynamics.

The French government already offered buyers a cash incentive of between 5,000 and 7,000 euros to get more electric cars on the road, at a total cost of 1 billion euros ($1.1 billion) per year.

However, in the absence of cheap European-made EVs, a third of all incentives are going to consumers buying EVs made in China, French finance ministry officials say. The trend has helped spur a surge in imports and a growing competitive gap with domestic producers.

China's auto industry relies heavily on coal-generated electricity, meaning many Chinese-made EVs will henceforth not qualify.

The Ademe agency overseeing the process studied the eligibility of almost 500 EV models and their variants to include in the scheme.

Dacia, the low-cost Renault brand, saw its Spring model imported from China excluded from the list.

Tesla's Model 3 is made in China. The Model Y, which is larger and more expensive, is made mainly in Berlin and was the top selling EV in France over the first 11 months of the year, amid forecasts that EVs could dominate within a decade in many markets.

 

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Requests for Proposal launched for purchase of clean electricity in Alberta

Canada Clean Electricity Procurement advances federal operations with renewable energy in Alberta, leveraging RECs, competitive sourcing, Indigenous participation, and grid decarbonization to cut greenhouse gas emissions and stimulate new clean power infrastructure.

 

Key Points

A plan to procure clean power and RECs, cutting emissions in Alberta and attributing use where renewables are absent.

✅ RFPs to source new clean electricity in Alberta

✅ RECs from net new Canadian renewable generation

✅ Mandatory Indigenous participation via equity or set-asides

 

Public Services and Procurement Canada (PSPC) is taking concrete steps to meet the Government of Canada's commitment in the Greening Government Strategy to reduce greenhouse gas emissions from federal government buildings, vehicle fleets and other operations, aligning with broader vehicle electrification trends across Canada.

The Honourable Anita Anand, Minister of Public Services and Procurement, announced the Government of Canada has launched Requests for Proposal to buy new clean electricity in the province of Alberta, which is moving ahead with the retirement of coal power to clean its grid, to power federal operations there.

As well, Canada will purchase Renewable Energy Certificates (REC) from new clean energy generation in Canada. This will enable Canada to attribute its energy consumption as clean in regions where new clean renewable sources are not yet available. The Government of Canada is excited about this opportunity to stimulate net new Canadian clean electricity generation through the procurement of RECs and complementary power purchase agreements that secure long-term supply for federal demand.

Together, these contracts will help to ensure Canada is reducing its greenhouse gas footprint by approximately 133 kilotonnes or 56% of total real property emissions in Alberta. Additionally, the contracts will displace approximately 41 kilotonnes of greenhouse gas emissions from electricity use in the rest of Canada, supporting progress toward 2035 clean electricity goals even as challenges remain.

Through these open, fair and transparent competitive procurement processes, PSPC will be a key purchaser of clean electricity and will support the growth of new clean electricity and renewable power infrastructure, such as recent turbine investments in Manitoba that expand capacity.

The Government of Canada's Clean Electricity Initiative plans to use 100% clean electricity by 2022, where available, in alignment with evolving net-zero electricity regulations that shape supply choices, to reduce greenhouse gas emissions and stimulate growth in clean renewable power infrastructure. PSPC has applied the goals of the Government of Canada's Clean Electricity Initiative to its specific requirement for net new clean electricity generation to power federal operations in Alberta.  

These procurements will support economic opportunities for Indigenous businesses by encouraging participation in the move towards clean energy, seen in provincial shifts toward clean power in Ontario that broaden markets. Each Request for Proposal incorporates mandatory requirements for Indigenous participation through equity holdings or set-asides under the Procurement Strategy for Aboriginal Business.

 

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

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

 

Key Points

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

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

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

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

 

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

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

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

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

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

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

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

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

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

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

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

 

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Is residential solar worth it?

Home Solar Cost vs Utility Bills compares electricity rates, ROI, incentives, and battery storage, explaining payback, financing, and grid fees while highlighting long-term savings, rate volatility, and backup power resilience for homeowners.

 

Key Points

Compares home solar pricing and financing to utility rates, outlining savings, incentives, ROI, and backup power value.

✅ Average retail rates rose 59% in 20 years; volatility persists

✅ Typical 7.15 kW system costs $18,950 before incentives

✅ Federal ITC and state rebates improve ROI and payback

 

When shopping for a home solar system, sometimes the quoted price can leave you wondering why someone would move forward with something that seems so expensive. 

When compared with the status quo, electricity delivered from the utility, the price may not seem so high after all. First, pv magazine will examine the status quo, and how much you can expect to pay for power if you don’t get solar panels. Then, we will examine the average cost of solar arrays today and introduce incentives that boost home solar value.

The cost of doing nothing

Generally, early adopters have financially benefited from going solar by securing price certainty and stemming the impact of steadily increasing utility-bill costs, particularly for energy-insecure households who pay more for electricity.

End-use residential electric customers pay an average of $0.138/kWh in the United States, according to the Energy Information Administration (EIA). In California, that rate is $0.256/kWh, it averages $0.246/kWh across New England, $0.126/kWh in the South Atlantic region, and $0.124/kWh in the Mountain West region.

EIA reports that the average home uses 893 kWh per month, so based on the average retail rate of $0.138/kWh, that’s an electric bill of about $123 monthly, or $229 monthly in California.

Over the last 20 years, EIA data show that retail electricity prices have increased 59% across the United States, with evidence indicating that renewables are not making electricity more expensive, suggesting other factors have driven costs higher, or 2.95% each year.

This means based on historical rates, the average US homeowner can expect to pay $39,460 over the next 20 years on electricity bills. On average, Californians could pay $73,465 over 20 years.

Recent global events show just how unstable prices can be for commodities, and energy is no exception here, with solar panel sales doubling in the UK as homeowners look to cut soaring bills. What will your utility bill cost in 20 years?

These estimated bills also assume that energy use in the home is constant over 20 years, but as the United States electrifies its homes, adds more devices, and adopts electric vehicles, it is fair to expect that many homeowners will use more electricity going forward.

Another factor that may exacerbate rate raising is the upgrade of the national transmission grid. The infrastructure that delivers power to our homes is aging and in need of critical upgrades, and it is estimated that a staggering $500 billion will be spent on transmission buildout by 2035. This half-trillion-dollar cost gets passed down to homeowners in the form of raised utility bill rates.

The benefit of backup power may increase as time goes on as well. Power outages are on the rise across the United States, and recent assessments of the risk of power outages underscore that outages related to severe weather events have doubled in the last 20 years. Climate change-fueled storms are expected to continue to rise, so the role of battery backup in providing reliable energy may increase significantly.

The truth is, we don’t know how much power will cost in 20 years. Though it has increased 59% across the nation in the last 20 years, there is no way to be certain what it will cost going forward. That is where solar has a benefit over the status quo. By purchasing solar, you are securing price certainty going forward, making it easier to budget and plan for the future.

So how do these costs compare to going solar?

Cost of solar

As a general trend, prices for solar have fallen. In 2010, it cost about $40,000 to install a residential solar system, and since then, prices have fallen by as much as 70%, and about 37% in the last five years. However, prices have increased slightly in 2022 due to shipping costs, materials costs, and possible tariffs being placed on imported solar goods, and these pressures aren’t expected to be alleviated in the near-term.

When comparing quotes, the best metric for an apples-to-apples comparison is the cost per watt. Price benchmarking by the National Renewable Energy Laboratory shows the average cost per watt for the nation was $2.65/W DC in 2021, and the average system size was 7.15 kW. So, an average system would cost about $18,950. With 12.5 kWh of battery energy storage, the average cost was $4.26/W, representing an average price tag of $30,460 with batteries included.

The prices above do not include any incentives. Currently, the federal government applies a 26% investment tax credit to the system, bringing down system costs for those who qualify to $14,023 without batteries, and $22,540 with batteries. Compared to the potential $39,460 in utility bills, buying a solar system outright in cash appears to show a clear financial benefit.

Many homeowners will need financing to buy a solar system. Shorter terms can achieve rates as low as 2.99% or less, but financing for a 20-year solar loan typically lands between 5% to 8% or more. Based on 20-year, 7% annual percentage rate terms, a $14,000 system would total about $26,000 in loan payments over 20 years, and the system with batteries included would total about $42,000 in loan payments.

Often when you adopt solar, the utility will still charge you a grid access fee even if your system produces 100% of your needs. These vary from utility to utility but are often around $10 a month. Over 20 years, that equates to about $2,400 that you’ll still need to pay to the utility, plus any costs for energy you use beyond what your system provides.

Based on these average figures, a homeowner could expect to see as much as $12,000 in savings with a 20-year financed system. Homeowners in regions whose retail energy price exceeds the national average could see savings in multiples of that figure.

Though in this example batteries appear to be marginally more expensive than the status quo over a 20-year term, they improve the home by adding the crucial service of backup power, and as battery costs continue to fall they are increasingly being approved to participate in grid services, potentially unlocking additional revenue streams for homeowners.

Another thing to note is most solar systems are warranted for 25 years rather than the 20 used in the status quo example. A panel can last a good 35 years, and though it will begin to produce less in old age, any power produced by a panel you own is money back in your pocket.

Incentives and home value

Many states have additional incentives to boost the value of solar, too, and federal proposals to increase solar generation tenfold could remake the U.S. electricity system. Checking the Database of State Incentives for Renewables (DSIRE) will show the incentives available in your state, and a solar representative should be able to walk you through these benefits when you receive a quote. State incentives change frequently and vary widely, and in some cases are quite rich, offering thousands of dollars in additional benefits.

Another factor to consider is home value. A study by Zillow found that solar arrays increase a home value by 4.1% on average. For a $375,000 home, that’s an increase of $15,375 in value. In most states home solar is exempt from property taxes, making it a great way to boost value without paying taxes for it.

Bottom line

We’ve shared a lot of data on national averages and the potential cost of power going forward, but is solar for you? In the past, early adopters have been rewarded for going solar, and celebrate when they see $0 electric bills paid to the utility company.

Each home is different, each utility is different, and each homeowner has different needs, so evaluating whether solar is right for your home will take a little time and analysis. Representatives from solar companies will walk you through this analysis, and it’s generally a good rule of thumb to get at least three quotes for comparison.

A great resource for starting your research is the Solar Calculator developed by informational site SolarReviews. The calculator offers a quote and savings estimate based on local rates and incentives available to your area. The website also features reviews of installers, equipment, and more.

Some people will save tens of thousands of dollars in the long run with solar, while others may witness more modest savings. Solar will also provide the home clean, local energy, and U.S. solar generation is projected to reach 20% by 2050 as capacity expands, making an impact both on mitigating climate change and in supporting local jobs.

One indisputable benefit of solar is that it will offer greater clarity into what your electricity bills will cost over the next couple of decades, rather than leaving you exposed to whatever rates the utility company decides to charge in the future.

 

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Here's why the U.S. electric grid isn't running on 100% renewable energy yet

US Renewable Energy Transition is the shift from fossil fuels to wind, solar, and nuclear, targeting net-zero emissions via grid modernization, battery storage, and new transmission to replace legacy plants and meet rising electrification.

 

Key Points

The move to decarbonize electricity by scaling wind, solar, and nuclear with storage and transmission upgrades.

✅ Falling LCOE makes wind and solar competitive with gas and coal.

✅ 4-hour lithium-ion storage shifts solar to evening peak demand.

✅ New high-voltage transmission links resource-rich regions to load.

 

Generating electricity to power homes and businesses is a significant contributor to climate change. In the United States, one quarter of greenhouse gas emissions come from electricity production, according to the Environmental Protection Agency.

Solar panels and wind farms can generate electricity without releasing any greenhouse gas emissions, and recent research suggests wind and solar could meet about 80% of U.S. demand with supportive infrastructure. Nuclear power plants can too, although today’s plants generate long-lasting radioactive waste, which has no permanent storage repository.

But the U.S. electrical sector is still dependent on fossil fuels. In 2021, 61 percent of electricity generation came from burning coal, natural gas, or petroleum. Only 20 percent of the electricity in the U.S. came from renewables, mostly wind energy, hydropower and solar energy, according to the U.S. Energy Information Administration, and in 2022 renewable electricity surpassed coal nationwide as portfolios shifted. Another 19 percent came from nuclear power.

The contribution from renewables has been increasing steadily since the 1990s, and the rate of increase has accelerated, with renewables projected to reach one-fourth of U.S. generation in the near term. For example, wind power provided only 2.8 billion kilowatt-hours of electricity in 1990, doubling to 5.6 billion in 2000. But from there, it skyrocketed, growing to 94.6 billion in 2010 and 379.8 billion in 2021.

That’s progress, as the U.S. moves toward 30% electricity from wind and solar this decade, but it’s not happening fast enough to eliminate the worst effects of climate change for our descendants.

“We need to eliminate global emissions of greenhouse gases by 2050,” philanthropist and technologist Bill Gates wrote in his 2023 annual letter. “Extreme weather is already causing more suffering, and if we don’t get to net-zero emissions, our grandchildren will grow up in a world that is dramatically worse off.”

And the problem is actually bigger than it looks, even as pathways to zero-emissions electricity by 2035 are being developed.

“We need not just to create as much electricity as we have now, but three times as much,” says Saul Griffith, an entrepreneur who’s sold companies to Google and Autodesk and has written books on mass electrification. To get to zero emissions, all the cars and heating systems and stoves will have to be powered with electricity, said Griffith. Electricity is not necessarily clean, but at least it it can be, unlike gas-powered stoves or gasoline-powered cars.

The technology to generate electricity with wind and solar has existed for decades. So why isn’t the electric grid already 100% powered by renewables? And what will it take to get there?

First of all, renewables have only recently become cost-competitive with fossil fuels for generating electricity. Even then, prices depend on the location, Paul Denholm of the National Renewable Energy Laboratory told CNBC.

In California and Arizona, where there is a lot of sun, solar energy is often the cheapest option, whereas in places like Maine, solar is just on the edge of being the cheapest energy source, Denholm said. In places with lots of wind like North Dakota, wind power is cost-competitive with fossil fuels, but in the Southeast, it’s still a close call.

Then there’s the cost of transitioning the current power generation infrastructure, which was built around burning fossil fuels, and policymakers are weighing ways to meet U.S. decarbonization goals as they plan grid investments.

“You’ve got an existing power plant, it’s paid off. Now you need renewables to be cheaper than running that plant to actually retire an old plant,” Denholm explained. “You need new renewables to be cheaper just in the variable costs, or the operating cost of that power plant.”

There are some places where that is true, but it’s not universally so.

“Primarily, it just takes a long time to turn over the capital stock of a multitrillion-dollar industry,” Denholm said. “We just have a huge amount of legacy equipment out there. And it just takes awhile for that all to be turned over.”

 

Intermittency and transmission
One of the biggest barriers to a 100% renewable grid is the intermittency of many renewable power sources, the dirty secret of clean energy that planners must manage. The wind doesn’t always blow and the sun doesn’t always shine — and the windiest and sunniest places are not close to all the country’s major population centers.

Wind resources in the United States, according to the the National Renewable Energy Laboratory, a national laboratory of the U.S. Department of Energy.
Wind resources in the United States, according to the the National Renewable Energy Laboratory, a national laboratory of the U.S. Department of Energy.
National Renewable Energy Laboratory, a national laboratory of the U.S. Department of Energy.
The solution is a combination of batteries to store excess power for times when generation is low, and transmission lines to take the power where it is needed.

Long-duration batteries are under development, but Denholm said a lot of progress can be made simply with utility-scale batteries that store energy for a few hours.

“One of the biggest problems right now is shifting a little bit of solar energy, for instance, from say, 11 a.m. and noon to the peak demand at 6 p.m. or 7 p.m. So you really only need a few hours of batteries,” Denholm told CNBC. “You can actually meet that with conventional lithium ion batteries. This is very close to the type of batteries that are being put in cars today. You can go really far with that.”

So far, battery usage has been low because wind and solar are primarily used to buffer the grid when energy sources are low, rather than as a primary source. For the first 20% to 40% of the electricity in a region to come from wind and solar, battery storage is not needed, Denholm said. When renewable penetration starts reaching closer to 50%, then battery storage becomes necessary. And building and deploying all those batteries will take time and money.
 

 

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