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


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U.S. 2023 Utility-Scale Capacity Additions highlight surging solar power, expanding battery storage, wind projects, natural gas plants, and new nuclear reactors, boosting grid reliability in Texas and California with record planned installations.

 

Key Points

Planned grid expansions led by solar and battery storage, with wind, natural gas, and nuclear increasing U.S. capacity.

✅ 29.1 GW solar planned; Texas and California lead installations.

✅ 9.4 GW battery storage to more than double current capacity.

✅ Natural gas, wind, and 2.2 GW nuclear round out additions.

 

Developers plan to add 54.5 gigawatts (GW) of new utility-scale electric-generating capacity to the U.S. power grid in 2023, according to our Preliminary Monthly Electric Generator Inventory. More than half of this capacity will be solar power (54%), even as coal generation increase has been reported, followed by battery storage (17%).

 

Solar

U.S. utility-scale solar capacity has been rising rapidly EIA summer outlook since 2010. Despite its upward trend over the past decade 2018 milestone, additions of utility-scale solar capacity declined by 23% in 2022 compared with 2021. This drop in solar capacity additions was the result of supply chain disruptions and other pandemic-related challenges. We expect that some of those delayed 2022 projects will begin operating in 2023, when developers plan to install 29.1 GW of solar power in the United States. If all of this capacity comes online as planned, 2023 will have the most new utility-scale solar capacity added in a single year, more than doubling the current record (13.4 GW in 2021).

In 2023, the most new solar capacity, by far, will be in Texas (7.7 GW) and California (4.2 GW), together accounting for 41% of planned new solar capacity.

 

Battery storage

U.S. battery storage capacity has grown rapidly January generation jump over the past couple of years. In 2023, U.S. battery capacity will likely more than double. Developers have reported plans to add 9.4 GW of battery storage to the existing 8.8 GW of battery storage capacity.

Battery storage systems are increasingly installed with wind and solar power projects. Wind and solar are intermittent sources of generation; they only produce electricity when the wind is blowing or the sun is shining. Batteries can store excess electricity from wind and solar generators for later use. In 2023, we expect 71% of the new battery storage capacity will be in California and Texas, states with significant solar and wind capacity.

 

Natural gas

Developers plan to build 7.5 GW of new natural-gas fired capacity record natural gas output in 2023, 83% of which is from combined-cycle plants. The two largest natural gas plants expected to come online in 2023 are the 1,836 megawatt (MW) Guernsey Power Station in Ohio and the 1,214 MW CPV Three Rivers Energy Center in Illinois.

 

Wind

In 2023, developers plan to add 6.0 GW of utility-scale wind capacity, as renewables poised to eclipse coal in global power generation. Annual U.S. wind capacity additions have begun to slow, following record additions of more than 14 GW in both 2020 and 2021.

The most wind capacity will be added in Texas in 2023, at 2.0 GW. The only offshore wind capacity expected to come online this year is a 130.0 MW offshore windfarm in New York called South Fork Wind.

 

Nuclear

Two new nuclear reactors at the Vogtle nuclear power plant in Georgia nuclear and net-zero are scheduled to come online in 2023, several years later than originally planned. The reactors, with a combined 2.2 GW of capacity, are the first new nuclear units built in the United States in more than 30 years.

Developers and power plant owners report planned additions to us in our annual and monthly electric generator surveys. In the annual survey, we ask respondents to provide planned online dates for generators coming online in the next five years. The monthly survey tracks the status of generators coming online based on reported in-service dates.

 

 

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DOE Issues Two LNG Export Authorizations

DOE LNG Export Approvals expand flexibility for Cheniere's Sabine Pass and Corpus Christi to ship to non-FTA countries, boosting U.S. supply to Europe while advancing methane emissions reductions and strengthening global energy security.

 

Key Points

DOE LNG export approvals authorize Sabine Pass and Corpus Christi to sell full-capacity LNG to non-FTA markets.

✅ Exports allowed to any non-FTA country, including Europe

✅ Capacity covers Sabine Pass and Corpus Christi terminals

✅ DOE targets methane reductions across oil and gas

 

The U.S. Department of Energy (DOE) today issued two long-term orders authorizing liquefied natural gas (LNG) exports from two current operating LNG export projects, Cheniere Energy Inc.’s Sabine Pass in Louisiana and Corpus Christi in Texas, following a recent deep freeze that slammed the American energy sector.

The two orders allow Sabine Pass and Corpus Christi additional flexibility to export the equivalent of 0.72 billion cubic feet per day of natural gas as LNG to any country with which the U.S. does not have a free trade agreement, including all of Europe, such as the UK natural gas market as well.

While U.S. exporters are already exporting at or near their maximum capacity, with today's issuances, every operating U.S. LNG export project has approval from DOE to export its full capacity to any country where not prohibited by U.S. law or policy constraints in place.

The U.S. is now the top global exporter of LNG and exports are set to grow an additional 20% beyond current levels by the end of this year as additional capacity comes online, even as a domestic energy crisis influences electricity and gas markets.  In January 2022, U.S. LNG supplied more than half of the LNG imports into Europe for the month.

With the expected rise in LNG exports, DOE is particularly focused on driving down methane emissions in the oil and gas sector both domestically and abroad, leveraging the deep technical expertise of the Department, and supporting nuclear innovation as well.

U.S. LNG remains an important component to global energy security worldwide and DOE remains committed to finding ways to help our allies and trading partners, including support to Ukraine and others with the energy supplies they need while continuing to work to mitigate the impact of climate change.

 

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Climate change, not renewables, threaten grid

New Mexico Energy Transition Act advances renewable energy, battery storage, energy efficiency, and demand response to boost grid reliability during climate change-fueled heatwaves, reducing emissions while supporting solar and wind deployment.

 

Key Points

A state policy phasing out power emissions, scaling renewables and storage, bolstering grid reliability in extreme heat.

✅ Replaces coal generation with solar plus battery storage

✅ Enhances grid reliability during climate-driven heatwaves

✅ Promotes energy efficiency and demand response programs

 

While temperatures hit record highs across much of the West in recent weeks and California was forced to curb electricity service amid heat-driven grid strain that week, the power stayed on in New Mexico thanks to proactive energy efficiency and conservation measures.

Public Service Company of New Mexico on Aug. 19 did ask customers to cut back on power use during the peak demand time until 9 p.m., to offset energy supply issues due to the record-breaking heatwave that was one of the most severe to hit the West since 2006. But the Albuquerque Journal's Aug. 28 editorial, "PRC should see the light with record heat and blackouts," confuses the problem with the solution. Record temperatures fueled by climate change – not renewable energy – were to blame for the power challenges last month. And thanks to the Energy Transition Act, New Mexico is reducing climate change-causing pollution and better positioned to prevent the worst impacts of global warming.

During those August days, more than 80 million U.S. residents were under excessive heat warnings. As the Journal's editorial pointed out, California experienced blackouts on Aug. 14 and 15 as wildfires swept across the state and temperatures rose. In fact, a recent report by the University of Chicago's Climate Impact Lab found the world has experienced record heat this summer due to climate change, and heat-related deaths will continue to rise in the future.

As the recent California energy incidents show, climate change is a threat to a reliable electricity system and our health as soaring temperatures and heatwaves strain our grid, as seen in Texas grid challenges this year as well. Demand for electricity rises as people depend more on energy-intensive air conditioning. High temperatures also can decrease transmission line efficiency and cause power plant operators to scale back or even temporarily stop electricity generation.

Lobbyists for the fossil fuel industry may claim that the service interruptions and the conservation requests in New Mexico demonstrate the need for keeping fossil-fueled power generation for electricity reliability, echoing policy blame narratives in California that fault climate policies. But fossil fuel combustion still is subject to the factors that cause blackouts – while also driving climate change and making resulting heatwaves more common. After an investigation, California's own energy agencies found no substance to the claim that renewable energy use was a factor in the situation there, and it's not to blame in New Mexico, either.

New Mexico's Energy Transition Act is a bold, necessary step to limit the damage caused by climate change in the future. It creates a reasonable, cost-saving path to eliminating greenhouse gas emissions associated with generating electricity.

The New Mexico Public Regulation Commission properly applied this law when it recently voted unanimously to replace PNM's coal-fired generation at San Juan Generating Station with carbon-free solar energy and battery storage located in the Four Corners communities, a prudent step given California's looming electricity shortage warnings across the West. The development will create jobs and provide resources for the local school district and help ensure a stronger economy and a healthier future for the region.

As we expand solar and wind energy here in New Mexico, we can help ensure reliable electricity service by building out greater battery storage for renewable energy resources. Expanding regional energy markets that can dispatch the lowest-cost energy from across the region to places where it is needed most would make renewable energy more available and reduce costs, despite concerns over policy exports raised by some observers.

Energy efficiency and demand response are important when we are facing extraordinary conditions, and proven strategies to improve electricity reliability show how demand-side tools complement the grid, so it is unfortunate that the Albuquerque Journal made the unsubstantiated claim that a stray cloud will put out the lights. It was hot, supplies were tight on the electric grid, and in those moments, we should conserve. We should not use those moments to turn our back on progress.

 

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California Wants Cars to Run on Electricity. It’s Going to Need a Much Bigger Grid

California EV mandate will phase out new gas cars, raising power demand and requiring renewable energy, grid upgrades, fast chargers, time-of-use rates, and vehicle-to-grid to stabilize loads and reduce emissions statewide.

 

Key Points

California's order ends new gas-car sales by 2035, driving grid upgrades, charging infrastructure, and cleaner transport.

✅ 25% higher power demand requires new generation and storage

✅ Time-of-use pricing and midday charging reduce grid stress

✅ Vehicle-to-grid and falling battery costs enable reliability

 

Leaning on the hood of a shiny red electric Ford Mustang, California Gov. Gavin Newsom signed an executive order Wednesday to end the sale of new gas-burning cars in his state in 15 years, a move with looming challenges for regulators and industry.

Now comes the hard part.

Energy consultants and academics say converting all passenger cars and trucks to run on electricity in California could raise power demand by as much as 25%. That poses a major challenge to state power grids as California is already facing periodic rolling blackouts as it rapidly transitions to renewable energy.

California will need to boost power generation, scale up its network of fast charging stations, enhance its electric grid to handle the added load and hope that battery technology continues to improve enough that millions in America’s most populous state can handle long freeway commutes to schools and offices without problems.

“We’ve got 15 years to do the work,” said Pedro Pizarro, chief executive of Edison International, owner of Southern California Edison, a utility serving 15 million people in the state. “Frankly the state agencies are going to have to do their part. We’ve got to get to the permitting processes, the approvals; all of that work is going to have to get accelerated to meet [Wednesday’s] target.”

Switching from petroleum fuels to electricity to phase out the internal combustion engine won’t happen all at once—Mr. Newsom’s order applies to sales of new vehicles, so older gas-powered cars will be on the road in California for many years to come. But the mandate means the state will face a growing demand for megawatts.

California is already facing a shortfall of power supplies over the next couple of years. The problem was highlighted last month when a heat wave blanketed the western U.S. and the state’s grid operator instituted rolling blackouts on two occasions.

“It is too early to tell what kind of impact the order will have on our power grid, and we don’t have any specific analysis or projections,” said Anne Gonzalez, a spokeswoman for the California Independent System Operator, which runs the grid.

Currently, California faces a crunchtime in the early evening as solar power falls off and demand to power air conditioners remains relatively high. Car charging presents a new potential issue: what happens if surging demand threatens to crash the grid during peak hours?

Caroline Winn, the chief executive of San Diego Gas & Electric, a utility owned by Sempra Energy that serves 3.6 million people, said there will need to be rules and rates that encourage people to charge their cars at certain times of the day, amid broader control over charging debates.

“We need to get the rules right and the markets right, informed by lessons from 2021, in order to resolve this issue because certainly California is moving that way,” she said.

The grid will need to be upgraded to prepare for millions of new electric vehicles. The majority of people who own them usually charge them at home, which would mean changes to substations and distribution circuits to accommodate multiple homes in a neighborhood drawing power to fill up batteries. The state’s three main investor-owned utilities are spending billions of dollars to harden the grid to prevent power equipment from sparking catastrophic wildfires.


“We have a hell of a lot of work to do nationally. California is ahead of everybody and they have a hell of a lot of work to do,” said Chris Nelder, who studies EV-grid integration at the Rocky Mountain Institute, an energy and environment-policy organization that promotes clean-energy solutions.

Mr. Nelder believes the investment will be worth it, because internal combustion engines generate so much waste heat and emissions of uncombusted hydrocarbons that escape out of tailpipes. Improving energy efficiency by upgrading the electrical system could result in lower bills for customers. “We will eliminate a vast amount of waste from the energy system and make it way more efficient,” he said.

Some see the growth of electric vehicles as an opportunity more than a challenge. In the afternoon, when electricity demand is high but the sun is setting and solar power drops off quickly, batteries in passenger cars, buses and other vehicles could release power back into the electric grid to help grid stability across the system, said Matt Petersen, chairman of the Transportation Electrification Partnership, a public-private effort in Los Angeles to accelerate the deployment of electric vehicles.

The idea is known as “vehicle-to-grid” and has been discussed in a number of countries expanding EV use, including the U.K. and Denmark.

“We end up with rolling batteries that can discharge power when needed,” Mr. Petersen said, adding, “The more electric vehicles we add to the grid, the more renewable energy we can add to the grid.”

One big hurdle for the widespread deployment of electric cars is driving down the cost of batteries to make the cars more affordable. This week, Tesla Inc. Chief Executive Elon Musk said he expected to have a $25,000 model ready by about 2023, signaling a broader EV boom in the U.S.

Shirley Meng, director of the Sustainable Power and Energy Center at the University of California, San Diego, said she believed batteries would continue to provide better performance at a lower cost.

“I am confident the battery technology is ready,” she said. Costs are expected to fall as new kinds of materials and metals can be used in the underlying battery chemistry, dropping prices. “Batteries are good now, and they will be better in the next 10 years.”

John Eichberger, executive director of the Fuels Institute, a nonprofit research group launched by the National Association of Convenience Stores, said he hoped that the California Air Resources Board, which is tasked with developing new rules to implement Mr. Newsom’s order, will slow the timeline if the market and electric build-out is running behind.

“We need to think about these critical infrastructure issues because transportation is not optional,” he said. “How do we develop a system that can guarantee consumers that they can get the energy when they need it?”

 

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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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Alberta renewable energy surge could power 4,500 jobs

Alberta Renewable Energy Boom highlights corporate investments, power purchase agreements, wind and solar capacity gains, grid decarbonization, and job growth, adding 2 GW and $3.7B construction since 2019 in an open electricity market.

 

Key Points

Alberta's PPA-driven wind and solar surge adds 2 GW, cuts grid emissions, creates jobs, and accelerates private builds.

✅ 2 GW added since 2019 via corporate PPAs

✅ Open electricity market enables direct deals

✅ Strong wind and solar resources boost output

 

Alberta has seen a massive increase in corporate investment in renewable energy since 2019, and capacity from those deals is set to increase output by two gigawatts —  enough to power roughly 1.5 million homes. 

“Our analysis shows $3.7 billion worth of renewables construction by 2023 and 4,500 jobs,” Nagwan Al-Guneid, the director of Business Renewables Centre Canada, says. 

The centre is an initiative of the environmental think tank Pembina Institute and provides education and guidance for companies looking to invest in renewable energy or energy offsets across Canada. Its membership is made up of renewable energy companies.

The addition of two gigawatts is over two times the amount of renewable energy added to the grid between 2010 and 2017, according to the Canadian Energy Regulator. 

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“This is driven directly by what we call power purchase agreements,” Al-Guneid says. “We have companies from across the country coming to Alberta.”

So far this year, 191 megawatts of renewable energy will be added through purchase agreements, according to the Business Renewables Centre, as diversified energy sources can make better projects overall.

Alberta’s electricity system is unique in Canada — an open market where companies can ink deals directly with private power producers to sell renewable energy and buy a set amount of electricity produced each year, either for use or for offset credits. The financial security provided by those contracts helps producers build out more renewable projects without market risks. Purchasers get cheap renewable energy or credits to meet internal or external emissions goals. 

It differs from other provinces, many of which rely on large hydro capacity and where there is a monopoly, often government-owned, on power supply. 

In those provinces, investment in renewables largely depends on whether the company with the monopoly is in a buying mood, says Blake Shaffer, an economics professor at the University of Calgary who studies electricity markets. 

That’s not the case in Alberta, where the only real regulatory hurdle is applying to connect a project to the grid.

“Once that’s approved, you can just go ahead and build it, and you can sell it,” Shaffer says.

That sort of flexibility has attracted some big investments, including two deals with Amazon in 2021 to purchase 455 megawatts worth of solar power from Calgary-based Greengate Power. There are also big investments from oil companies looking to offset emissions.

The investments are allowing Alberta to decarbonize its grid, largely with the backing of the private sector. 

Shaffer says Alberta is the “renewables capital in Canada,” a powerhouse in both green and fossil energy by many measures.

“That just shocks people because of course their association with Alberta is nothing about renewables, but oil and gas,” Shaffer says. “But it really is the investment centre for renewables in the entire country right now.”

Alberta has ‘embarrassing’ riches in wind energy and solar power
It’s not just the market that is driving Alberta’s renewables boom. According to Shaffer there are three other key factors: an embarrassment of wind and solar riches, the need to transition away from a traditionally dirty, coal-reliant grid and the current high costs of energy. 

Shaffer says the strong and seemingly non-stop winds coming off the foothills of the Rockies in the southwest of the province mean wind power is increasingly competitive and each turbine produces more energy compared to other areas. The same is true for solar, with an abundance of sunny days.

“Southern Alberta and southern Saskatchewan have the best solar insolation,” he says. “You put a panel in Vancouver, or you put a panel in Medicine Hat, and you’re gonna get about 50 per cent more energy out of that panel in Medicine Hat, and they’re gonna cost you the same.”

The spark that set off the surge in investments wasn’t strictly an open-market mechanism. Under the previous NDP government, the province brought in a program that allowed private producers to compete for government contracts, with some solar facilities contracted below natural gas demonstrating cost advantages.

The government agreed to a certain price and the producers were then allowed to sell their electricity on the open market. If the price dropped below what was guaranteed, the province would pay the difference. If, however, the price was higher, the developers would pay the difference to the government. 

 

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Why the Texas grid causes the High Plains to turn off its wind turbines

Texas High Plains Wind Energy faces ERCOT transmission congestion, limiting turbines in the Panhandle from stabilizing the grid as gas prices surge, while battery storage and solar could enhance reliability and lower power bills statewide.

 

Key Points

A major Panhandle wind resource constrained by ERCOT transmission, impacting grid reliability and electricity rates.

✅ Over 11,000 turbines can power 9M homes in peak conditions

✅ Transmission congestion prevents flow to major load centers

✅ Storage and solar can bolster reliability and reduce bills

 

Texas’s High Plains region, which covers 41 counties in the Texas Panhandle and West Texas, is home to more than 11,000 wind turbines — the most in any area of the state.

The region could generate enough wind energy to power at least 9 million homes. Experts say the additional energy could help provide much-needed stability to the electric grid during high energy-demand summers like this one, and even lower the power bills of Texans in other parts of the state.

But a significant portion of the electricity produced in the High Plains stays there for a simple reason: It can’t be moved elsewhere. Despite the growing development of wind energy production in Texas, the state’s transmission network, reflecting broader grid integration challenges across the U.S., would need significant infrastructure upgrades to ship out the energy produced in the region.

“We’re at a moment when wind is at its peak production profile, but we see a lot of wind energy being curtailed or congested and not able to flow through to some of the higher-population areas,” said John Hensley, vice president for research and analytics at the American Clean Power Association. “Which is a loss for ratepayers and a loss for those energy consumers that now have to either face conserving energy or paying more for the energy they do use because they don’t have access to that lower-cost wind resource.”

And when the rest of the state is asked to conserve energy to help stabilize the grid, the High Plains has to turn off turbines to limit wind production it doesn’t need.

“Because there’s not enough transmission to move it where it’s needed, ERCOT has to throttle back the [wind] generators,” energy lawyer Michael Jewell said. “They actually tell the wind generators to stop generating electricity. It gets to the point where [wind farm operators] literally have to disengage the generators entirely and stop them from doing anything.”

Texans have already had a few energy scares this year amid scorching temperatures and high energy demand to keep homes cool. The Electric Reliability Council of Texas, which operates the state’s electrical grid, warned about drops in energy production twice last month and asked people across the state to lower their consumption to avoid an electricity emergency.

The energy supply issues have hit Texans’ wallets as well. Nearly half of Texas’ electricity is generated at power plants that run on the state’s most dominant energy source, natural gas, and its price has increased more than 200% since late February, causing elevated home utility bills.

Meanwhile, wind farms across the state account for nearly 21% of the state’s power generation. Combined with wind production near the Gulf of Mexico, Texas produced more than one-fourth of the nation’s wind-powered electric generation last year.

Wind energy is one of the lowest-priced energy sources because it is sold at fixed prices, turbines do not need fuel to run and the federal government provides subsidies. Texans who get their energy from wind farms in the High Plains region usually pay less for electricity than people in other areas of the state. But with the price of natural gas increasing from inflation, Jewell said areas where wind energy is not accessible have to depend on electricity that costs more.

“Other generation resources are more expensive than what [customers] would have gotten from the wind generators if they could move it,” Jewell said. “That is the definition of transmission congestion. Because you can’t move the cheaper electricity through the grid.”

A 2021 ERCOT report shows there have been increases in stability constraints for wind energy in recent years in both West and South Texas that have limited the long-distance transfer of power.

“The transmission constraints are such that energy can’t make it to the load centers. [High Plains wind power] might be able to make it to Lubbock, but it may not be able to make it to Dallas, Fort Worth, Houston or Austin,” Jewell said. “This is not an insignificant problem — it is costing Texans a lot of money.”

Some wind farms in the High Plains foresaw there would be a need for transmission. The Trent Wind Farm was one of the first in the region. Beginning operations in 2001, the wind farm is between Abilene and Sweetwater in West Texas and has about 100 wind turbines, which can supply power to 35,000 homes. Energy company American Electric Power built the site near a power transmission network and built a short transmission line, so the power generated there does go into the ERCOT system.

But Jewell said high energy demand and costs this summer show there’s a need to build additional transmission lines to move more wind energy produced in the High Plains to other areas of the state.

Jewell said the Public Utility Commission, which oversees the grid, is conducting tests to determine the economic benefits of adding transmission lines from the High Plains to the more than 52,000 miles of lines that already connect to the grid across the state. As of now, however, there is no official proposal to build new lines.

“It does take a lot of time to figure it out — you’re talking about a transmission line that’s going to be in service for 40 or 50 years, and it’s going to cost hundreds of millions of dollars,” Jewell said. “You want to be sure that the savings outweigh the costs, so it is a longer process. But we need more transmission in order to be able to move more energy. This state is growing by leaps and bounds.”

A report by the American Society of Civil Engineers released after the February 2021 winter storm stated that Texas has substantial and growing reliability and resilience problems with its electric system.

The report concluded that “the failures that caused overwhelming human and economic suffering during February will increase in frequency and duration due to legacy market design shortcomings, growing infrastructure interdependence, economic and population growth drivers, and aging equipment even if the frequency and severity of weather events remains unchanged.”

The report also stated that while transmission upgrades across the state have generally been made in a timely manner, it’s been challenging to add infrastructure where there has been rapid growth, like in the High Plains.

Despite some Texas lawmakers’ vocal opposition against wind and other forms of renewable energy, and policy shifts like a potential solar ITC extension can influence the wind market, the state has prime real estate for harnessing wind power because of its open plains, and farmers can put turbines on their land for financial relief.

This has led to a boom in wind farms, even with transmission issues, and nationwide renewable electricity surpassed coal in 2022 as deployment accelerated. Since 2010, wind energy generation in Texas has increased by 15%. This month, the Biden administration announced the Gulf of Mexico’s first offshore wind farms will be developed off the coasts of Texas and Louisiana and will produce enough energy to power around 3 million homes.

“Texas really does sort of stand head and shoulders above all other states when it comes to the actual amount of wind, solar and battery storage projects that are on the system,” Hensley said.

One of the issues often brought up with wind and solar farms is that they may not be able to produce as much energy as the state needs all of the time, though scientists are pursuing improvements to solar and wind to address variability. Earlier this month, when ERCOT asked consumers to conserve electricity, the agency listed low wind generation and cloud coverage in West Texas as factors contributing to a tight energy supply.

Hensley said this is where battery storage stations can help. According to the U.S. Energy Information Administration, utility-scale batteries tripled in capacity in 2021 and can now store up to 4.6 gigawatts of energy. Texas has been quickly developing storage projects, spurred by cheaper solar batteries, and in 2011, Texas had only 5 megawatts of battery storage capacity; by 2020, that had ballooned to 323.1 megawatts.

“Storage is the real game-changer because it can really help to mediate and control a lot of the intermittency issues that a lot of folks worry about when they think about wind and solar technology,” Hensley said. “So being able to capture a lot of that solar that comes right around noon to [1 p.m.] and move it to those evening periods when demand is at its highest, or even move strong wind resources from overnight to the early morning or afternoon hours.”

Storage technology can help, but Hensley said transmission is still the big factor to consider.

Solar is another resource that could help stabilize the grid. According to the Solar Energy Industries Association, Texas has about 13,947 megawatts of solar installed and more than 161,000 installations. That’s enough to power more than 1.6 million homes.

This month, the PUC formed a task force to develop a pilot program next year that would create a pathway for solar panels and batteries on small-scale systems, like homes and businesses, to add that energy to the grid, similar to a recent virtual power plant in Texas rollout. The program would make solar and batteries more accessible and affordable for customers, and it would pay customers to share their stored energy to the grid as well.

Hensley said Texas has the most clean-energy projects in the works that will likely continue to put the region above the rest when it comes to wind generation.

“So they’re already ahead, and it looks like they’re going to be even farther ahead six months or a year down the road,” he said.

 

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