Solar and wind power curtailments are rising in California

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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Canada Renewable Energy Partnerships advance wind power and clean electricity in Alberta and Saskatchewan, cutting emissions and supporting net-zero goals through Capital Power and SaskPower agreements with Indigenous participation and 25-year supply contracts.

Key Points

Government-backed deals with Capital Power and SaskPower to deliver clean electricity and reduce emissions.

✅ 25-year renewable supply for federal facilities

✅ New Halkirk 2 Wind project in Alberta

✅ Emissions cuts with Indigenous participation

The Government of Canada has partnered with two major energy providers in Western Canada (Prairie provinces) on renewable energy projects.

Tourism Minister Randy Boissonnault appeared in Edmonton on Friday to announce a new Alberta wind-generation facility in partnership with Capital Power.

It's one of two new energy partnerships in Western Canada as part of the 2030 emissions reduction plan by Public Services and Procurement Canada.

On Jan. 1, the federal government awarded a contract worth up to $500 million to Capital Power to provide all federal facilities in Alberta with renewable electricity as part of Alberta's renewable energy surge for 25 years.

"We're proud to partner with the government of Canada to help them reach their 100 per cent clean electricity by 2025 goal," said Jason Comandante, Capital Power vice president of commercial services.

The agreement also includes opportunities for Indigenous participation, including facility development partnerships and employment and training opportunities.

"At Capital Power, we are committed to net-zero by 2045, and are proud to take action against climate change. Collaborative agreements like this help support our net-zero goals, provide us opportunities to meaningfully engage Indigenous communities, and help decarbonize Alberta's power grid," Comandante said.

Capital Power will provide around 250,000 megawatt-hours of electricity each year through existing renewable energy credits while the new Capital Power Halkirk 2 Wind facility is being developed.

Located near Paintearth, Alta., the proposed wind farm will have up to 35 turbines and generate enough power for the average yearly electricity needs of more than 70,000 Alberta homes.

The project is currently awaiting regulatory approval, within Alberta's energy landscape, with construction projected to begin this summer. When complete, it will supply 49 per cent of its output to the federal government.

"Through the agreement, the federal government is supporting the ongoing development of renewable energy infrastructure development within the province," Boissonnault said.

The new partnership will join another in Saskatchewan and complement Alberta solar facilities that have been contracted at lower cost than natural gas.

In 2022, the federal government signed an agreement with SaskPower to supply clean electricity to the approximately 600 federal facilities in Saskatchewan. That wind project is expected to come online by 2024.

Boissonnault said the two initiatives combined will reduce carbon dioxide emissions in Alberta and Saskatchewan by about 166 kilotonnes.

"That is the equivalent of the emissions from more than 50,000 cars driven for one year. So, if you think about that, that's a great reduction right here in Alberta and Saskatchewan," he said.

"These are concrete steps to ensuring that Canada remains a leader of renewable energy on the global stage and grid modernization projects to help the fight against climate change." 

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EV Carpocalypse signals potential mismatch between electric vehicle production and demand, as charging infrastructure, utility coordination, and plug-in hybrid strategies lag forecasts, while state mandates and market-share plays drive cautious, data-informed scaling.

Key Points

EV Carpocalypse describes overbuilt EV supply versus demand amid charging rollout, mandates, and risk-managed scaling.

✅ Forecasts vs actual EV demand may diverge in near term

✅ Charging infrastructure and utilities lag vehicle output

✅ Mandates and PHEVs cushion adoption while data guides scaling

According to Forbes contributor David Kiley, and Wards Automotive columnist John McElroy, there may be an impending “carpocalypse” of electric vehicles on the way. Sounds very damning and it’s certainly not the upbeat tone I’ve taken on nearly every piece of EV demand content I’ve authored but the author, Kiley does bring up some interesting points worth considering. EV Adoption is happening, and it’s certainly doing so at ever faster rates as the market nears an EV inflection point today. The infrastructure (charging stations, utility cooperation) is being built out more slowly than vehicle manufacturers are producing cars but, as the GM president on EV hurdles has noted, the issue seems to be just that, maybe even the short and medium term plans for EV manufacturing are too aggressive.

#google#

With new EV and plug-in hybrid vehicle sales representing a mere .6% of new car cales in the US, a sign that EV sales remain behind gas cars even as new models proliferate, car makers are are going to be spending more than $100 billion to come out with more than a hundred models of battery electric vheicles which also includes PHEVs and the fear is these vehicles aren’t going to sell in the numbers that automakers and industry analysts may have expected. But forecasts are just that, forecasts, even as U.S. EV sales surge into 2024 suggest momentum. So there’s a valid argument to be made that they’ll either overshoot the true mark or come in way below the actual amount. With nine U.S. states mandating that 15% of new cars sold be EVs by 2025, you could say that at least automakers have supporters in state government helping to push the new technology into the hands of more drivers.

Still, it’s anyone’s guess as to what true adoption will be, and a brief Q1 2024 market share dip underscores lingering volatility. The use of big data and just in time manufacturing will ensure that manufacturers will miss the mark on EVs by less than they have in the past, and will able to cope with breaking even on these vehicles for the sake of gobbling up precious early stage market share. After all, many vendors have up to this point been very willing to break even or make a loss on their lease-only EVs or on EV or hybrid financing in order to gain that share and build out their brand awareness and technical prowess. With some stops and starts, demand will meet supply or supply may need to meet demand but either way, the EV adoption wave is coming to a driveway near you. 

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

Key Points

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

✅ 160 charging points; 4-hour rapid recharge capability

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

✅ Supported by Transport Scotland; built by Alexander Dennis

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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Texas Battery Storage Investment Boom draws BlackRock, SK, and UBS, leveraging ERCOT price volatility, renewable energy growth, and utility-scale energy storage arbitrage to enhance grid reliability, resilience, and double-digit returns across high-demand nodes.

Key Points

Texas sees a rush into battery storage, using ERCOT price spreads to bolster grid reliability and earn about 20% returns.

✅ Investors exploit price volatility, peak-demand spreads.

✅ Utility-scale storage enhances ERCOT reliability.

✅ Top players: BlackRock, SK E&S, UBS; 700 MW deals.

BlackRock, Korea's SK, Switzerland's UBS and other companies are chasing an investment boom in battery storage plants in Texas, lured by the prospect of earning double-digit returns from the power grid problems plaguing the state, according to project owners, developers and suppliers.

Projects coming online are generating returns of around 20%, compared with single digit returns for solar and wind projects, according to Rhett Bennett, CEO of Black Mountain Energy Storage, one of the top developers in the state.

"Resolving grid issues with utility-scale energy storage is probably the hottest thing out there,” he said.

The rapid expansion of battery storage could help, through efforts like a virtual power plant initiative in Texas, prevent a repeat of the February 2021 ice storm and grid collapse which killed 246 people and left millions of Texans without power for days.

The battery rush also puts the Republican-controlled state at the forefront of President Joe Biden's push to expand renewable energy use.

Power prices in Texas can swing from highs of about $90 per megawatt hour (MWh) on a normal summer day to nearly $3,000 per MWh when demand surges on a day with less wind power, a dynamic tied to wind curtailment on the Texas grid according to a simulation by the federal government's U.S. Energy Information Administration.

That volatility, a product of demand and higher reliance on intermittent wind and solar energy, has fueled a rush to install battery plants, aided by falling battery costs, that store electricity when it is cheap and abundant and sell when supplies tighten and prices soar.

Texas last year accounted for 31% of new U.S. grid-scale energy storage, with much of it pairing storage with solar, according to energy research firm Wood Mackenzie, second only to California which has had a state mandate for battery development for a decade.

And Texas is expected to account for nearly a quarter of the U.S. grid-scale storage market over the next five years, a trajectory consistent with record U.S. solar-plus-storage growth noted by analysts, according to Wood Mackenzie projections shared with Reuters.

Developers and energy traders said locations offering the highest returns -- in strapped areas of the grid -- will become increasingly scarce as more storage comes online and, as diversifying resources for better projects suggests, electricity prices stabilize.

Texas lawmakers this week voted to provide new subsidies for natural gas power plants in a bid to shore up reliability. But the legislation also contains provisions that industry groups said could encourage investment in battery storage by supporting 'unlayering' peak demand approaches.

Amid the battery rush, BlackRock acquired developer Jupiter Power from private equity firm EnCap Investments late last year. Korea's SK E&S acquired Key Capture Energy from Vision Ridge Partners in 2021 and UBS bought five Texas projects from Black Mountain last year for a combined 700 megawatts (MW) of energy storage. None of the sales' prices were disclosed.

SK E&S said its acquisition of Key Capture was part of a strategy to invest in U.S. grid resiliency.

"SK E&S views energy storage solutions in Texas and across the U.S. as a core technology that supports a new energy infrastructure system to ensure American homes and businesses have affordable power," the company said in a statement.

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Inflation Reduction Act Clean Energy drives EV adoption and renewable power, but grid interconnection, permitting, and supply chain bottlenecks slow wind, solar, and offshore projects, risking emissions targets despite domestic manufacturing growth and tax incentives.

Key Points

An IRA push to scale EVs and renewables, meeting EV goals but lagging wind and solar amid grid and permitting delays.

✅ EV sales up 50%, 9.2% of 2023 new cars; growth may moderate.

✅ 32.3 GW added, below 46-79 GW/year needed for climate targets.

✅ Grid, permitting, and supply chain delays bottleneck wind and solar.

A year and a half following President Biden's enactment of an ambitious climate change bill, the landscape of the United States' clean energy transition, shaped by 2021 electricity lessons, presents a mix of successes and challenges. A recent study by a consortium of research organizations highlights that while electric vehicle (EV) sales have surged, aligning with the law's projections, the expansion of renewable energy sources like wind and solar has encountered significant hurdles.

The legislation, known as the Inflation Reduction Act, aimed for a dual thrust in America's climate strategy: boosting EV adoption, alongside EPA emission limits, and significantly increasing the generation of electricity from renewable resources. The Act, passed in 2022, was anticipated to propel the United States toward reducing its greenhouse gas emissions by approximately 40 percent from 2005 levels by the end of this decade, backed by extensive financial incentives for clean energy advancements.

Electric vehicle sales have indeed seen a remarkable uptick, with a more than 50 percent increase over the past year, as EV sales surge into 2024 across the market, culminating in EVs comprising 9.2 percent of all new car sales in the United States in 2023. This growth trajectory met the upper range of analysts' predictions post-law enactment, signaling a strong start toward achieving the Act's emission reduction targets.

However, the EV market faces uncertainties regarding the sustainability of this rapid growth. The initial surge in sales was largely driven by early adopters, and the market now confronts challenges such as high prices and limited charging infrastructure, while EVs still trail gas cars in overall market share. Despite these concerns, projections suggest that even a slowdown to 30-40 percent growth in EV sales for 2024 would align with the law's emission goals.

The renewable energy sector's progress is less straightforward. Despite achieving a record addition of 32.3 gigawatts of clean electricity capacity in the past year, the pace falls short of the projected 46 to 79 gigawatts needed annually to meet the United States' climate objectives. While there is potential for about 60 gigawatts of projects in the pipeline for this year, not all are expected to materialize on schedule, indicating a lag in the deployment of new renewable energy sources.

Logistical challenges are a significant barrier to scaling up renewable energy, especially as EV-driven electricity demand rises in the coming years. Lengthy grid connection processes, permitting delays, and local opposition hinder wind and solar project developments. Moreover, ambitious plans for offshore wind farms are hampered by supply chain issues and regulatory constraints.

To achieve the Inflation Reduction Act's ambitious targets, the United States needs to add 70 to 126 gigawatts of renewable capacity annually from 2025 to 2030—a formidable task given the current logistical and regulatory bottlenecks. The analysis underscores the urgency of addressing these non-cost barriers to unlock the full potential of the law's clean energy and emissions reduction ambitions.

In addition to promoting clean energy generation and EV adoption, the Inflation Reduction Act has spurred domestic manufacturing of clean energy technologies. With $44 billion invested in U.S. clean-energy manufacturing last year, this aspect of the law has seen considerable success, and permanent clean energy tax credits are being debated to sustain momentum, demonstrating the Act's capacity to drive economic and industrial transformation.

The law's impact extends to emerging clean energy technologies, offering tax incentives for advanced nuclear reactors, renewable hydrogen production, and carbon capture and storage projects. While these initiatives hold promise for further emissions reductions, their development and deployment are still in the early stages, with tangible outcomes expected in the longer term.

While the Inflation Reduction Act has catalyzed significant strides in certain areas of the United States' clean energy transition, including an EV inflection point in adoption trends, it faces substantial hurdles in fully realizing its objectives. Overcoming logistical, regulatory, and market challenges will be crucial for the nation to stay on course toward its ambitious climate goals, underscoring the need for continued innovation, investment, and policy refinement in the journey toward a sustainable energy future.

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