Ohio can be leader with 'power play'

By Cincinnati Enquirer


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Energy - where we obtain it, how much we pay for it, how we consume it - is one of most critical issues America faces. So it's good to see that Ohio's business and government leaders are engaged in a serious discussion of the state's energy policy, including a re-examination of its 1999 electric deregulation law and a focus on encouraging alternative energy sources for the future. Gov. Ted Strickland announced a comprehensive plan that addresses those points and more.

We hope the debate will focus on a system that's flexible, fair and forward-looking - one that won't just fall back on the old regulatory formulas.

Ohio's decade-long flirtation with electric deregulation has been a case study in best-laid plans. It was an ambitious, complicated, in some ways ingenious effort to break up the traditional monopolies and foster competition. The goal was clear: Lower electricity bills. Consumers could choose the best price from various providers and join "buying pools" to get group rates.

Advocates believed that deregulation could save Ohio's consumers as much as 30 percent on their electric bills. If that had occurred, Ohio could well have become an economic boom state, with new and expanded businesses creating jobs and wealth.

But because of a mostly unforeseen chain of events - the Enron debacle, the dot-com bust, 9/11, a recession, spikes in fuel prices (natural gas for electric plants has tripled since the late 1990s), hostility toward new power plants, federal roadblocks - real competition almost never materialized. Even where it did, the savings were so minimal that residential consumers didn't bother to shop for power.

In fairness, proponents of deregulation point out that Ohio and many other states capped electricity rates so artificially low during the transition to deregulation that there was little or no incentive for competition to develop. And the Federal Energy Regulatory Commission dropped the ball on letting wholesalers compete.

Now, with the price controls set by the 1999 law scheduled to end in December 2008, many experts fear a large, rapid rise in electricity bills for business, industrial and residential consumers. That's what happened in other states. In Illinois, bills rose as much as 55 percent after rate freezes expired in January. In Maryland, electricity went up 50 percent. Between 2000 and 2006, prices rose an average 21 percent in regulated states but 36 percent in deregulated states when caps expired. Ohio's deregulation plan was better thought-out than in other states such as California, however, so it's not clear we'd have as large a price surge.

The Ohio Coalition for Affordable Power, which includes some of the same businesses that supported deregulation in the 1990s, is advocating a plan that would essentially re-regulate electric power, with some modifications. It wants: a stronger, more interventionist Public Utilities Commission of Ohio; stable, "cost-based" pricing of electricity for consumers; more coordination of generating plans; and incentives for utilities to build new plants.

This decade's economic climate has been hostile to deregulation, but that doesn't mean a competitive marketplace in energy can't work. Policymakers should keep in mind that the old model of regulated, monolithic monopolies may not be valid in the future, with a diverse palette of emerging sources and technologies.

Competition in the market already has spurred innovation and efficiency. Strickland's aim to "harness the power of market incentives" shows he understands that idea. He describes his plan as "middle ground" regulation that would allow market-based pricing, while encouraging openness and accountability. It has the laudable goal of making sure at least 25 percent of Ohio's electricity comes from advanced technologies by the year 2025.

That's a smart outlook. Ohio's energy policy should remain flexible, keeping prices affordable, stable but not rigid. It should be fair to residential consumers as well as big industrial users. It should encourage innovation and entrepreneurship in energy technology. It should provide a safety net for low-income consumers.

And it must encourage conservation. As Duke Energy CEO Jim Rogers argues, energy efficiency should be considered the "fifth fuel" (after coal, gas, nuclear and renewables). It has to be treated as a resource.

Whatever the state does or fails to do this coming year, consumers should understand that the trend is toward rising energy prices. The question is how much - and what we get in future energy security for that extra price.

Ohio indeed is "entering a new day," as Strickland said, and has the opportunity to become a leader in smart energy policy. Ohio's leaders should make the most of that opportunity.

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California Public Utilities Commission sides with community energy program over SDG&E

CPUC Decision on San Diego Community Power directs SDG&E to use updated forecasts, stabilizing electricity rates for CCA customers and supporting clean energy in San Diego with accurate rate forecasting and reduced volatility.

 

Key Points

A CPUC ruling directing SDG&E to use updated forecasts to ensure accurate, stable CCA rates and limit volatility.

✅ Uses 2021 sales forecasts for rate setting

✅ Aims to prevent undercollection and bill spikes

✅ Levels changes across customer classes

 

The California Public Utilities Commission on Thursday sided with the soon-to-launch San Diego community energy program in a dispute it had with San Diego Gas & Electric.

San Diego Community Power — which will begin to purchase power for customers in San Diego, Chula Vista, La Mesa, Encinitas and Imperial Beach later this year — had complained to the commission that data SDG&E intended to use to calculate rates, including community choice exit fees that could make the new energy program less attractive to prospective customers.

SDG&E argued it was using numbers it was authorized to employ as part of a general rate case amid a potential rate structure revamp that is still being considered by the commission.

But in a 4-0 vote, the commission, or CPUC, sided with San Diego Community Power and directed SDG&E to use an updated forecast for energy sales.

"This was not an easy decision," said CPUC president Marybel Batjer at the meeting, held remotely due to COVID-19 restrictions. "In my mind, this outcome best accounts for the shifting realities ... in the San Diego area while minimizing the impact on ratepayers during these difficult financial times."

In filings to the commission, SDG&E predicted a rate decrease of 12.35 percent in the coming year. While that appears to be good news for customers, Californians still face soaring electricity prices statewide, Commissioner Martha Guzman Aceves said the data set SDG&E wanted to use would lead to an undercollection of $150 million to $260 million.

That would result in rates that would be "artificially low," Guzman Aceves said, and rates "would inevitably go up quite a bit after the undercollection was addressed."

San Diego Community Power, or SDCP, said the temporary reduction would make its rates less attractive than SDG&E's, especially amid SDG&E's minimum charge proposal affecting low-usage customers, just as it is about to begin serving customers. SDCP's board members wrote an open letter last month to the commission, accusing the utility of "willful manipulation of data."

Working with an administrative law judge at the CPUC, Guzman Aceves authored a proposal requiring SDG&E to use numbers based on 2021 forecasts, as regulators simultaneously weigh whether the state needs more power plants to ensure reliability. The utility argued that could result in an increase of "roughly 40 percent" for medium and large commercial and industrial customers this year.

To help reduce potential volatility, Guzman Aceves, SDCP and other community energy supporters called for using a formula that would average out changes in rates across customer classes amid debates over income-based utility charges statewide. That's what the commissioners OK'd Thursday.

"It is essential that customer commodity rates be as accurate as we can possibly get them to avoid undercollections," said Commissioner Genevieve Shiroma.

San Diego Community Power is one of 23 community choice aggregation, or CCA, energy programs that have launched in California in the past decade.

CCAs compete with traditional power companies amid California's evolving power competition landscape, in one important role — purchasing power for a given community. They were created to boost the use of cleaner energy sources, such as wind and solar, at rates equal to or lower than investor-owned utilities.

However, CCAs do not replace utilities because the incumbent power companies still perform all of the tasks outside of power purchasing, such as transmission and distribution of energy and customer billing.

When a CCA is formed, California rules stipulate the utility customers in that area are automatically enrolled in the CCA. If customers prefer to stay with their previous power company, they can opt out of joining the CCA.

The shift of customers from SDG&E to San Diego Community Power is expected to be large. The total number of accounts for SDCP is expected to be 770,000, which would make it the second-largest CCA in the state. That's why SDCP considered Thursday's CPUC decision to be so important.

"At a time when customers are choosing between sticking with San Diego Gas & Electric and migrating to a CCA, we want them to have accurate bill information," said Commissioner Clifford Rechtschaffen.

"SDCP is very happy with today's CPUC decision, and that the commissioners shared our goal of limiting rate volatility for businesses and families in the region," said SDCP interim CEO Bill Carnahan. "This is definitely a win for accurate rate forecasting, and our mutual customers, and we look forward to working with SDG&E on next steps."

In an email, SDG&E spokeswoman Helen Gao said, "We are committed to continuing to work collaboratively with local Community Choice Aggregation programs to support their successful launch in 2021 and ensure that our mutual customers receive excellent customer service."

San Diego Community Power's case before the CPUC was joined by the California Community Choice Association, a trade group advocating for CCAs, and the Clean Energy Alliance — the North County-based CCA representing Del Mar, Solana Beach and Carlsbad that is scheduled to launch this summer.

SDCP will begin its rollout this year, folding in about 71,000 municipal, commercial and industrial accounts. The bulk of its roughly 700,000 residential accounts is expected to come in January 2022.

 

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Hydro One extends ban on electricity disconnections until further notice

Hydro One Disconnection Ban Extension keeps Ontario electricity customers connected during COVID-19, extending the moratorium on power shutoffs and expanding financial relief programs amid ongoing pandemic restrictions and persistent hot weather across the province.

 

Key Points

An open-ended Ontario utility moratorium preventing residential power shutoffs and offering bill relief during COVID-19.

✅ No residential disconnections until further notice

✅ Extended bill assistance and flexible payment options

✅ Response to COVID-19 restrictions and extreme heat

 

Ontario's primary electricity provider says it's extending a ban on disconnecting homes from the power grid until further notice.

Hydro One first issued the ban towards the beginning of the province's COVID-19 outbreak, saying self-isolating customers needed to be able to rely on electricity while they were kept at home during the pandemic.

A spokesman for the utility says the ban was initially set to expire at the end of July, but has now been extended in a manner similar to winter disconnection bans without a fixed end-date.

Hydro One says the move is necessary given the ongoing restrictions posed by the pandemic, and notes it has supported provincial COVID-19 efforts in recent months, as well as persistent hot weather across much of the province.

It says it's also planning to extend a financial relief program to help customers struggling to pay their hydro bills, reflecting demand for more choice and flexibility among ratepayers.

The province also extended off-peak electricity rates to provide relief for families, small businesses and farms during this period.

 

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New Mexico Could Reap $30 Billion Driving on Electricity

New Mexico EV Benefits highlight cheaper fuel, lower maintenance, cleaner air, and smarter charging, cutting utility bills, reducing NOx and carbon emissions, and leveraging incentives and renewable energy to accelerate EV adoption statewide.

 

Key Points

New Mexico EV Benefits are the cost, grid, and emissions gains from EV adoption and optimized off-peak charging.

✅ Electricity near $1.11 per gallon equivalent cuts fueling costs

✅ Fewer moving parts mean less maintenance and lifecycle costs

✅ Off-peak charging reduces utility bills and grid emissions

 

What would happen if New Mexicans ditched gasoline and started to drive on cleaner, cheaper electricity? A new report from MJ Bradley & Associates, commissioned by NRDC and Southwest Energy Efficiency Project, answers that question, demonstrating that New Mexico could realize $30 billion in avoided expenditures on gasoline and maintenance, reduced utility bills, and environmental benefits by 2050. The state is currently considering legislation to jump-start that transition by providing consumers incentives to support electric vehicle (EV) purchases and the installation of charging stations, drawing on examples like Nevada's clean-vehicle push to accelerate deployment, a policy that would require a few million dollars in lost tax revenue. The report shows an investment of this kind could yield tens of billions of dollars in net benefits.


$20 Billion in Driver Savings

EVs save families money because driving on electricity in New Mexico is the cost-equivalent of driving on $1.11 per gallon gasoline. Furthermore, EVs have fewer moving parts and less required maintenance—no oil changes, no transmissions, no mufflers, no timing belts, etc. That means that tackling the nation’s largest source of carbon pollution, transportation, could save New Mexicans over $20 billion by 2050 because EVs are cheaper to charge and maintain than gas powered cars, and an EV boom benefits all customers through lower rates.

Those are savings New Mexico can bank on because the price of electricity is significantly cheaper than the price of gasoline and also inherently more stable. Electricity is made from a diverse supply of domestic and increasingly clean resources, and 2021 electricity lessons continue to inform grid planning today. Unlike the volatile world oil market, New Mexico’s electric sector is regulated by the state’s utility commission. Adjusted for inflation, the price of electricity has been steady around the dollar-a-gallon equivalent mark in New Mexico for the last 20 years, while gas prices jump up or down radically and unpredictably.

$4.8 Billion in Reduced Electric Bills

While some warn that electric cars will challenge state power grids, New Mexico can charge millions of EVs without the need to make significant investments in the electric grid. This is because EVs can be charged when the grid is underutilized and renewable energy is abundant, like when people are sleeping overnight when wind energy generation often peaks. And the billions of dollars in new utility revenue from EV charging in excess of associated costs will be automatically returned to utility customers per an accounting mechanism that is already in state law that requires downward adjustment of rates when sales increase. Accordingly, widespread EV adoption could reduce every utility customer’s electric bill.

Thankfully, New Mexico’s electric industry is already acting to ensure utility customers in the state realize those benefits sooner rather than later. The state’s rural electric cooperatives have proposed an ambitious plan to leverage funds available as a result of the Volkswagen diesel scandal to build a state-wide public fast charging network that mirrors progress as Arizona goes EV across the Southwest. Additionally, New Mexico’s investor-owned utilities will soon propose transportation electrification investments as required by legislation NRDC supported last year that Governor Lujan Grisham signed into law.

$4.8 Billion in Societal Benefits from Reduced Pollution

The report estimates that widespread EV adoption would dramatically reduce emissions of greenhouse gases from passenger vehicles in New Mexico, and also cut emissions of NOx, a local pollutant that threatens the health off all New Mexicans, especially children and people with respiratory conditions. The report finds growing the state’s EV market to meet New Mexico’s long-term environmental goals would yield $4.8 billion in societal benefits.

The Bottom Line: New Mexico Should Act Now to Accelerate its EV Market

Adding it all up, that’s more than $30 billion in potential benefits to New Mexico by 2050. Here’s the catch: as of June 2019, there were only 2,500 EVs registered in New Mexico, which means the state needs to accelerate the EV market, as the American EV boom ramps up nationally, to capture those billions of dollars in potential benefits. Thankfully, with second generation, longer range, affordable EVs now available, the market is well positioned to expand rapidly as the state moves to adopt Clean Car Standards that will ensure EVs are available for purchase in the state.

Getting it right

New Mexico has enormous amounts to gain from a small investment in incentives that support EV adoption now. For that investment to pay off, it needs to send a clear and unambiguous signal. Unfortunately, the same legislation that would establish tax credits to increase consumer access to electric vehicles in New Mexico was recently amended so it would not be helpful for 80 percent of consumers who lease, instead of buying EVs. And it would penalize EV drivers at the same time—with a $100 annual increase in registration fees, even as Texas adds a $200 EV fee under a similar rationale, to make up for lost gas tax revenue. That’s significantly more than what drivers of new gasoline vehicles pay annually in gas taxes in the state. Consumer Reports recently analyzed the growing trend to unfairly penalize electric cars via disproportionately high registration fees. In doing so, it estimated that the “maximum justifiable fee” to replace gas tax revenue in New Mexico would be $53. Anything higher will only slow or stop benefits New Mexico can attain from moving to cleaner cars.

To be clear, everyone should pay their fair share to maintain the transportation system, but EVs are not the problem when it comes to lost gas tax revenue. We need a comprehensive solution that addresses the real sources of transportation revenue loss while not undermining efforts to reduce dependence on gasoline. Thankfully, that can be done. For more, see A Simple Way to Fix the Gas Tax Forever.

 

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Ontario introduces new 'ultra-low' overnight hydro pricing

Ontario Ultra-Low Overnight Electricity Rates cut costs for shift workers and EV charging, with time-of-use pricing, off-peak savings, on-peak premiums, kilowatt-hour details, and Ontario Energy Board guidance for homes and businesses across participating utilities.

 

Key Points

Ontario's ultra-low overnight plan: 2.4c/kWh 11pm-7am for EVs, shift workers; higher daytime on-peak pricing.

✅ 2.4c/kWh 11pm-7am; 24c/kWh on-peak 4pm-9pm

✅ Best for EV charging, shift work, night usage

✅ Available provincewide by Nov 1 via local utilities

 

The Ontario government is introducing a new ultra-low overnight price plan that can benefit shift workers and individuals who charge electric vehicles while they sleep.

Speaking at a news conference on Tuesday, Energy Minister Todd Smith said the new plan could save customers up to $90 a year.

“Consumer preferences are still changing and our government realized there was more we could do, especially as the province continues to have an excess supply of clean electricity at night when province-wide electricity demand is lower,” Smith said, noting a trend underscored by Ottawa's demand decline during the pandemic.

The new rate, which will be available as an opt-in option as of May 1, will be 2.4 cents per kilowatt-hour from 11 p.m. to 7 a.m. Officials say this is 67 per cent lower than the current off-peak rate, which saw a off-peak relief extension during the pandemic.

However, customers should be aware that this plan will mean a higher on-peak rate, as unlike earlier calls to cut peak rates, Hydro One peak charges remained unchanged for self-isolating customers.

The new plan will be offered by Toronto Hydro, London Hydro, Centre Wellington Hydro, Hearst Power, Renfrew Hydro, Wasaga Distribution, and Sioux Lookout Hydro by May. Officials have said this will be expanded to all local distribution companies by Nov. 1.

With the new addition of the “ultra low” pricing, there are now three different electricity plans that Ontarians can choose from. Here is what you have to know about the new hydro options:

TIME OF USE:
Most residential customers, businesses and farms are eligible for these rates, similar to BC Hydro time-of-use proposals in another province, which are divided into off-peak, mid-peak and on-peak hours.

This is what customers will pay as of May 1 according to the Ontario Energy Board, following earlier COVID-19 electricity relief measures that temporarily adjusted rates:

 Off-peak (Weekdays between 7 p.m. and 7 a.m. and on weekends/holidays): 7.4 cents per kilowatt-hour
 Mid-Peak (Weekdays between 7 a.m. and 11 a.m., and between 5 p.m. and 7 p.m.): 10.2 cents per kilowatt-hour
 On-Peak ( Weekdays 11 a.m. to 5 p.m.): 15.1 cents per kilowatt-hour

TIERED RATES
This plan allows customers to get a standard rate depending on how much electricity is used. There are various thresholds per tier, and once a household exceeds that threshold, a higher price applies. Officials say this option may be beneficial for retirees who are home often during the day or those who use less electricity overall.

The tiers change depending on the season. This is what customers will pay as of May 1:

 Residential households that use 600 kilowatts of electricity per month and non-residential businesses that use 750 kilowatts per month: 8.7 cents per kilowatt-hour.
 Residences and businesses that use more than that will pay a flat rate of 10.3 cents per kilowatt-hour


ULTRA-LOW OVERNIGHT RATES
Customers can opt-in to this plan if they use most of their electricity overnight.

This is what customers will pay as of May 1:

  •  Between 11 p.m. and 7 a.m.: 2.4 cents per kilowatt-hour
  •  Weekends and holidays between 7 a.m. and 11 p.m.: 7.4 cents per kilowatt-hour
  •  Mid-Peak (Weekdays between 7 a.m. and 4 p.m., and between 9 p.m. and 11 p.m.): 10.2 cents per kilowatt-hour
  •  On-Peak (weekdays between 4 p.m. and 9 p.m.): 24 cents per kilowatt-hour

More information on these plans can be found on the Ontario Energy Board website, alongside stable pricing for industrial and commercial updates from the province.

 

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China's Data Centers Alone Will Soon Use More Electricity Than All Of Australia

Cloud Data Centers Environmental Impact highlights massive electricity use, carbon emissions, and cooling demands, with coal-heavy grids in China; big tech shifts to renewable energy, green data centers, and cooler climates to boost sustainability.

 

Key Points

Energy use, emissions, and cooling load of cloud systems, and shifts to renewables to reduce climate impact.

✅ Global data centers use 3-5% of electricity, akin to airlines

✅ Cooling drives energy demand; siting in cool climates saves power

✅ Shift from coal to renewables lowers CO2 and improves PUE

 

A hidden environmental price makes storing data in the cloud a costly convenience.

Between 3 to 5% of all electricity used globally comes from data centers that house massive computer systems, with computing power forecasts warning consumption could climb, an amount comparable to the airline industry, says Ben Brock Johnson, Here & Now’s tech analyst.

Instead of stashing information locally on our own personal devices, the cloud allows users to free up storage space by sending photos and files to data centers via the internet.

The cloud can also use large data sets to solve problems and host innovative technologies that make cities and homes smarter, but storing information at data centers uses energy — a lot of it.

"Ironically, the phrase 'moving everything to the cloud' is a problem for our actual climate right now," Johnson says.

A new study from Greenpeace and North China Electric Power University reports that in five years, China's data centers alone will consume as much power as the total amount used in Australia in 2018. The industry's electricity consumption is set to increase by 66% over that time.

Buildings storing data produced 99 million metric tons of carbon last year in China, the study finds, with SF6 in electrical equipment compounding warming impacts, which is equivalent to 21 million cars.

The amount of electricity required to run a data center is a global problem, but in China, 73% of these data centers run on coal, even as coal-fired electricity is projected to fall globally this year.

The Chinese government started a pilot program for green data centers in 2015, which Johnson says signals the country is thinking about the environmental consequences of the cloud.

"Beijing’s environmental awareness in the last decade has really come from a visible impact of its reliance on fossil fuels," he says. "The smog of Chinese cities is now legendary and super dangerous."

The country's solar power innovations have allowed the country to surpass the U.S. in cleantech, he says.

Chinese conglomerate Alibaba Group has launched data centers powered by solar and hydroelectric power.

"While I don't know how committed the government is necessarily to making data centers run on clean technology," Johnson says. "I do think it is possible that a larger evolution of the government's feelings on environmental responsibility might impact this newer tech sector."

In the U.S., there has been a big push to make data centers more sustainable amid warnings that the electric grid is not designed for mounting climate impacts.

Canada has made notable progress decarbonizing power, with nationwide electricity gains supporting cleaner data workloads.

Apple now says all of its data centers use clean energy. Microsoft is aiming for 70% renewable energy by 2023, aligning with declining power-sector emissions as producers move away from coal.

Amazon is behind the curve, for once, with about 50%, Johnson says. Around 1,000 employees are planning to walk out on Sept. 20 in protest of the company’s failure to address environmental issues.

"Environmental responsibility fits the brand identities these companies want to project," he says. "And as large tech companies become more competitive with each other, as Apple becomes more of a service company and Google becomes a device company, they want to convince users more and more to think of them as somehow different even if they aren't."

Google and Facebook are talking about building data centers in cooler places like Finland and Sweden instead of hot deserts like Nevada, he says.

In Canada, cleaning up electricity is critical to meeting climate pledges, according to recent analysis.

Computer systems heat up and need to be cooled down by air conditioning units, so putting a data center in a warm climate will require greater cooling efforts and use more energy.

In China, 40% of the electricity used at data centers goes toward cooling equipment, according to the study.

The more data centers consolidate, Johnson says they can rely on fewer servers and focus on larger cooling efforts.

But storing data in the cloud isn't the only way tech users are unknowingly using large amounts of energy: One Google search requires an amount of electricity equivalent to powering a 60-watt light bulb for 17 seconds, magazine Yale Environment 360 reports.

"In some ways, we're making strides even as we are creating a bigger problem," he says. "Which is like, humanity's MO, I guess."

 

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Rising Solar and Wind Curtailments in California

California Renewable Energy Curtailment highlights grid congestion, midday solar peaks, limited battery storage, and market constraints, with WEIM participation and demand response programs proposed to balance supply-demand and reduce wasted solar and wind generation.

 

Key Points

It is the deliberate reduction of solar and wind output when grid limits or low demand prevent full integration.

✅ Grid congestion restricts transmission capacity

✅ Midday solar peaks exceed demand, causing surplus

✅ Storage, WEIM, and demand response mitigate curtailment

 

California has long been a leader in renewable energy adoption, achieving a near-100% renewable milestone in recent years, particularly in solar and wind power. However, as the state continues to expand its renewable energy capacity, it faces a growing challenge: the curtailment of excess solar and wind energy. Curtailment refers to the deliberate reduction of power output from renewable sources when the supply exceeds demand or when the grid cannot accommodate the additional electricity.

Increasing Curtailment Trends

Recent data from the U.S. Energy Information Administration (EIA) highlights a concerning upward trend in curtailments in California. In 2024, the state curtailed a total of 3,102 gigawatt-hours (GWh) of electricity generated from solar and wind sources, surpassing the 2023 total of 2,660 GWh. This represents a 32.4% increase from the previous year. Specifically, 2,892 GWh were from solar, and 210 GWh were from wind, marking increases of 31.2% and 51.1%, respectively, compared to the first nine months of 2023.

Causes of Increased Curtailment

Several factors contribute to the rising levels of curtailment:

  1. Grid Congestion: California's transmission infrastructure has struggled to keep pace with the rapid growth of renewable energy sources. This congestion limits the ability to transport electricity from generation sites to demand centers, leading to curtailment.

  2. Midday Solar Peaks: Amid California's solar boom, solar energy production typically peaks during the midday when electricity demand is lower. This mismatch between supply and demand results in excess energy that cannot be utilized, necessitating curtailment.

  3. Limited Energy Storage: While battery storage technologies are advancing, California's current storage capacity is insufficient to absorb and store excess renewable energy for later use. This limitation exacerbates curtailment issues.

  4. Regulatory and Market Constraints: Existing market structures and regulatory frameworks may not fully accommodate the rapid influx of renewable energy, leading to inefficiencies and increased curtailment.

Economic and Environmental Implications

Curtailment has significant economic and environmental consequences. For renewable energy producers, curtailed energy represents lost revenue and undermines the economic viability of new projects. Environmentally, curtailment means that clean, renewable energy is wasted, and the grid may rely more heavily on fossil fuels to meet demand, counteracting the benefits of renewable energy adoption.

Mitigation Strategies

To address the rising curtailment levels, California is exploring several strategies aligned with broader decarbonization goals across the U.S.:

  • Grid Modernization: Investing in and upgrading transmission infrastructure to alleviate congestion and improve the integration of renewable energy sources.

  • Energy Storage Expansion: Increasing the deployment of battery storage systems to store excess energy during peak production times and release it during periods of high demand.

  • Market Reforms: Participating in the Western Energy Imbalance Market (WEIM), a real-time energy market that allows for the balancing of supply and demand across a broader region, helping to reduce curtailment.

  • Demand Response Programs: Implementing programs that encourage consumers to adjust their energy usage patterns, such as shifting electricity use to times when renewable energy is abundant.

Looking Ahead

As California continues to expand its renewable energy capacity, addressing curtailment will be crucial to ensuring the effectiveness and sustainability of its energy transition. By investing in grid infrastructure, energy storage, and market reforms, the state can reduce curtailment levels and make better use of its renewable energy resources, while managing challenges like wildfire smoke impacts on solar output. These efforts will not only enhance the economic viability of renewable energy projects but also contribute to California's 100% clean energy targets by maximizing the use of clean energy and reducing reliance on fossil fuels.

While California's renewable energy sector faces challenges related to curtailment, proactive measures and strategic investments can mitigate these issues, as scientists continue to improve solar and wind power through innovation, paving the way for a more sustainable and efficient energy future.

 

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