Hiccups causing major delays at nuclear plant

By asahi.com


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A clogged nozzle, a few dislodged bricks and a bent furnace-churning stick might appear minor concerns for a plant being put through its final commissioning test here.

But these technical failures, responsible for yet another delay in two- decade-old efforts to launch the plant, are far from last-minute wrinkles.

Not only have they proved frustratingly difficult to iron out, the problems at the Rokkasho Reprocessing Plant, conceived as a major link in Japan's nuclear fuel recycling program, could shake the program to its foundations.

Plant operator Japan Nuclear Fuel Ltd. (JNFL) announced it would postpone the end of testing from February to August — the 16th time it has delayed completion of the plant, which was originally due to go into full operation more than a decade ago, in 1997.

The technical troubles affecting one of its two glass melting furnaces, built to treat complex, heat-generating radioactive materials so that they can be buried safely in the ground, continue to confound JNFL.

When in operation, the Rokkasho plant will reprocess spent fuel from nuclear power stations in Japan to extract plutonium, which will be burned again to generate electricity. But the latest delay could jeopardize the nation's nuclear fuel recycling policy.

The last five delays were due to malfunctions that occurred in the furnace in the process of vitrifying the liquid high-level radioactive waste. Especially embarrassing for officials is the fact that the process is performed with technology designed in Japan.

In the furnace, liquid waste from reprocessing is mixed with glass ingredients at 1,100 to 1,200 degrees, and the resulting molten glass is funneled into canisters to make solid glass.

The tests for the furnace started in November 2007, but had to be suspended on several occasions when the furnace became unstable, stalling the flow of molten glass.

In December last year, officials found damage in the furnace chamber, possibly from its bent churning rod. Then in January, 150 liters of liquid waste leaked from piping.

Because the waste is highly radioactive, furnace operations are all performed by remote control.

Balancing the ingredients and temperatures inside the furnace is difficult as waste materials made from nuclear fission themselves emit heat. Especially problematic are electricity-conducting platinum group elements that can interfere with the heating by galvanizing glass.

After repeatedly reviewing and fine-tuning their procedures, engineers discovered that the conditions for keeping the furnace stable required much stricter control than previously thought.

While the Rokkasho plant employs technology developed in France, a country with considerable experience in spent fuel reprocessing, the two glass melting furnaces at the plant were built with Japanese technology. Each was modeled on a test furnace at the Japan Atomic Energy Agency's Tokai reprocessing facility in Ibaraki Prefecture. The new furnaces, however, are more than five times as large.

Masatoshi Toyota, former president of Japan Nuclear Fuel Service Ltd., a JNFL predecessor, says the decision to use domestic technology was made at the urging of the government.

The French vitrification technology employs a different heating method that avoids problems with the platinum group. But the furnace is small and its life span is only 200 days.

The Japanese-made furnaces, on the other hand, will last five years. However, the fact that the Tokai furnace was unable to resolve difficulties with platinum group elements is a troubling sign for the Rokkasho project.

While JNFL attempts to resolve these issues with the current furnaces, it plans to start developing an improved version in fiscal 2009 in cooperation with the Agency for Natural Resources and Energy.

Hajimu Yamana, a professor at Kyoto University's Nuclear Recycle Chemistry Research Group, says "a certain elbow room" may have been lacking when incorporating a blend of fundamentals and experience into the Rokkasho furnace design.

"There is no other way than to take time to find conditions for stable operations," he said.

Meanwhile, Japan's fuel recycling program has come under scrutiny from the international community, which has asked questions about the country's handling of weapons-grade plutonium. Among non-nuclear nations, Japan is the only country allowed under the international nonproliferation regime to produce plutonium in its reprocessing plant.

Plans to use mixed plutonium-uranium oxide (MOX) fuel at existing reactors and build a domestic MOX production facility are based on the premise that the Rokkasho plant will eventually be put into operation.

At full capacity, the plant will reprocess up to 800 tons of spent fuel annually. From that volume of waste it will extract more than 4 tons of fissionable plutonium.

Electric utilities have proposed commissioning 16 to 18 reactors for pluthermal power generation using the MOX fuel by fiscal 2010. That many reactors would burn 6 tons of plutonium a year.

However, only five reactors have been approved; the rest were stalled by fierce opposition from local communities concerned about safety. The five reactors will use only 2 tons a year. That will leave a vast quantity of weapons-grade plutonium from the 31 tons already possessed by Japan — 25 tons of which are in storage in Britain and France, where Japan sent spent fuel to be reprocessed from the 1980s, and 6 tons in Japan.

As far as plutonium production is concerned, then, there is no urgency to put the Rokkasho plant into operation. The real problem is the disposal of spent nuclear fuel, which is already clogging storage pools at nuclear power stations across the nation.

According to the Federation of Electric Power Companies of Japan, Japan was holding 12,320 tons of spent fuel as of last September. The national capacity is 19,240 tons.

JNFL is also concerned about recouping the costs of the Rokkasho plant's construction.

However, the changing international political climate could affect Japan's plans. Under the new administration of President Barack Obama, the United States will likely shift away from its nuclear fuel recycling policy.

The Japan-U.S. agreement on nuclear energy, under which Washington accepts Japan's reprocessing operations only for peaceful purposes, will expire in 2018.

Japan could then be called upon to review its reprocessing operations.

"It's important for us to seek understanding from the United States about Japan's situation (in which fuel recycling is impossible without reprocessing)," said Tetsuya Endo, former vice chairman of the Atomic Energy Commission.

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States have big hopes for renewable energy. Get ready to pay for it.

New York Climate Transition Costs highlight rising utility bills for ratepayers as the state pursues renewable energy, electrification, and a zero-emissions grid, with Inflation Reduction Act funding to offset consumer burdens while delivering health benefits.

 

Key Points

Ratepayer-funded costs to meet New York's renewable targets and zero-emissions grid, offset by federal incentives.

✅ $48B in projects funded by consumers over two decades

✅ Up to 10% of utility bills already paid by some upstate users

✅ Targets: 70% renewables by 2030; zero-emissions grid by 2040

 

A generational push to tackle climate change in New York that includes its Green New Deal is quickly becoming a pocketbook issue headed into 2024.

Some upstate New York electric customers are already paying 10 percent of their electricity bills to support the state’s effort to move off fossil fuels and into renewable energy. In the coming years, people across the state can expect to give up even bigger chunks of their income to the programs — $48 billion in projects is set to be funded by consumers over the next two decades.

The scenario is creating a headache for New York Democrats grappling with the practical and political risk of the transition.


It’s an early sign of the dangers Democrats across the country will face as they press forward with similar policies at the state and federal level. New Jersey, Maryland and California are also wrestling with the issue and, in some cases, are reconsidering their ambitious plans, including a 100% carbon-free mandate in California.

“This is bad politics. This is politics that are going to hurt all New Yorkers,” said state Sen. Mario Mattera, a Long Island Republican who has repeatedly questioned the costs of the state’s climate law and who will pay for it.

Democrats, Mattera said, have been unable to explain effectively the costs for the state’s goals. “We need to transition into renewable energy at a certain rate, a certain pace,” he said.

Proponents say the switch will ultimately lower energy bills by harnessing the sun and wind, result in significant health benefits and — critically — help stave off the most devastating climate change scenarios. And they hope new money to go green from the Inflation Reduction Act, celebrating its one-year anniversary, can limit costs to consumers.

New York has statutory mandates calling for 70 percent renewable electricity by 2030 and a fully “zero emissions” grid by 2040, among the most aggressive targets in the country, aligning with a broader path to net-zero electricity by mid-century. The grid needs to be greened, while demand for electricity is expected to more than double by 2050 — the same year when state law requires emissions to be cut by 85 percent from 1990 levels.

But some lawmakers in New York, particularly upstate Democrats, and similar moderates across the nation are worried about moving too quickly and sparking a backlash against higher costs, as debates over Minnesota's 2050 carbon-free plan illustrate. The issue is another threat to Democrats heading into the critical 2024 battleground House races in New York, which will be instrumental in determining control of Congress.

Even Gov. Kathy Hochul, a Democrat who is fond of saying that “we’re the last generation to be able to do anything” about climate change, last spring balked at the potential price tag of a policy to achieve New York’s climate targets, a concern echoed in debates over a fully renewable grid by 2030 elsewhere. And she’s not the only top member of her party to say so.

“If it’s all just going to be passed along to the ratepayers — at some point, there’s a breaking point, and we don’t want to lose public support for this agenda,” state Comptroller Tom DiNapoli, a Democrat, warned in an interview.

 

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Britain Goes Full Week Without Coal Power

Britain Coal-Free Week signals a historic shift to clean energy, with zero coal power, increased natural gas and renewables, lower greenhouse gas emissions, and ambitious UK energy policy targeting a 2025 coal phase-out and decarbonization.

 

Key Points

A seven-day period with no coal power in the UK, signaling cleaner energy and progress on emission reductions.

✅ Seven days of zero coal generation in the UK

✅ Natural gas and renewables dominated the electricity mix

✅ Coal phase-out targeted by 2025; emissions cuts planned

 

For the first time in a century, Britain weaned itself off of coal consumption for an entire week, a coal-free power record for the country.

Reuters reported that Britain went seven days without relying on any power generated by coal-powered stations as the share of coal in the grid continued to hit record lows.

The accomplishment is symbolic of a shift to more clean energy sources, with wind surpassing coal in 2016 and the UK leading the G20 in wind share as of recent years; Britain was home to the first coal-powered plant back in the 1880s.

Today, Britain has some aggressive plans in place to completely eliminate its coal power generation permanently by 2025, with a plan to end coal power underway. In addition, Britain aims to cut its total greenhouse gas emissions by 80 percent from 1990 levels within the next 30 years.

Natural gas was the largest source of power for Britain in 2018, providing 39 percent of the nation's total electricity, as the Great Britain generation dashboard shows. Coal contributed only about 5 percent, though low-carbon generation stalled in 2019 according to reports. Burning natural gas also produces greenhouse gases, but it is much more efficient and greener than coal.

In the U.S., 63.5 percent of electricity generated in 2018 came from fossil fuels. About 35.1 percent was produced from natural gas and 27.4 percent came from coal. In addition, 19.3 percent of electricity came from nuclear power and 17.1 percent came from renewable energy sources, according to the U.S. Energy Information Administration.

 

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EPA: New pollution limits proposed for US coal, gas power plants reflect "urgency" of climate crisis

EPA Power Plant Emissions Rule proposes strict greenhouse gas limits for coal and gas units, leveraging carbon capture (CCS) under the Clean Air Act to cut CO2 and accelerate decarbonization of the U.S. grid.

 

Key Points

A proposed EPA rule setting CO2 limits for coal and gas plants, using CCS to cut power-sector greenhouse gases.

✅ Applies to existing and new coal and large gas units

✅ Targets near-zero CO2 by 2038 via CCS or retirement

✅ Cites grid, health, and climate benefits; faces legal challenges

 

The Biden administration has proposed new limits on greenhouse gas emissions from coal- and gas-fired power plants, its most ambitious effort yet to roll back planet-warming pollution from the nation’s second-largest contributor to climate change.

A rule announced by the Environmental Protection Agency could force power plants to capture smokestack emissions using a technology that has long been promised but is not used widely in the United States, and arrives amid changes stemming from the NEPA rewrite that affect project reviews.

“This administration is committed to meeting the urgency of the climate crisis and taking the necessary actions required,″ said EPA Administrator Michael Regan.

The plan would not only “improve air quality nationwide, but it will bring substantial health benefits to communities all across the country, especially our front-line communities ... that have unjustly borne the burden of pollution for decades,” Regan said in a speech at the University of Maryland.

President Joe Biden, whose climate agenda includes a clean electricity standard as a key pillar, called the plan “a major step forward in the climate crisis and protecting public health.”

If finalized, the proposed regulation would mark the first time the federal government has restricted carbon dioxide emissions from existing power plants, following a Trump-era replacement of Obama’s power plant overhaul, which generate about 25% of U.S. greenhouse gas pollution, second only to the transportation sector. The rule also would apply to future electric plants and would avoid up to 617 million metric tons of carbon dioxide through 2042, equivalent to annual emissions of 137 million passenger vehicles, the EPA said.

Almost all coal plants — along with large, frequently used gas-fired plants — would have to cut or capture nearly all their carbon dioxide emissions by 2038, the EPA said, a timeline that echoed concerns raised during proposed electricity pricing changes in the prior administration. Plants that cannot meet the new standards would be forced to retire.

The plan is likely to be challenged by industry groups and Republican-leaning states, much like litigation over the Affordable Clean Energy rule unfolded in recent years. They have accused the Democratic administration of overreach on environmental regulations and warn of a pending reliability crisis for the electric grid. The power plant rule is one of at least a half-dozen EPA rules limiting power plant emissions and wastewater treatment rules.

“It’s truly an onslaught” of government regulation “designed to shut down the coal fleet prematurely,″ said Rich Nolan, president and CEO of the National Mining Association.

Regan denied that the power plant rule was aimed at shutting down the coal sector, but acknowledged — even after the end to the 'war on coal' rhetoric — “We will see some coal retirements.”

 

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Melting Glass Experiment Surprises Scientists by Defying a Law of Electricity

Electric Field-Induced Glass Softening reveals a Joule heating anomaly in silicate glass, where anode-side nanoscale alkali depletion drives ionic conduction, localized thermal runaway, melting, and evaporation, challenging homogeneity assumptions and refining materials processing models.

 

Key Points

An effect where electric fields lower glass softening temperature via nanoscale ionic migration and structural change.

✅ Anode-side alkali depletion creates extreme, localized heating

✅ Thermal runaway melts glass near the anode despite uniform bulk

✅ Findings refine Joule heating models and enable new glass processing

 

A team of scientists working with electrical currents and silicate glass have been left gobsmacked after the glass appeared to defy a basic physical law, in a field that also explores electricity-from-air devices for novel energy harvesting.

If you pass an electrical current through a material, the way that current generates heat can be described by Joule's first law. It's been observed time and time again, with the temperature always evenly distributed when the material is homogeneous (or uniform).

But not in this recent experiment. A section - and only a section - of silicate glass became so hot that it melted, and even evaporated. Moreover, it did so at a much lower temperature than the boiling point of the material.

The boiling point of pure silicate glass is 2,230 degrees Celsius (4,046 degrees Fahrenheit). The hottest temperature the researchers recorded in a homogeneous piece of silicate glass during the experiment was 1,868.7 degrees Celsius.

Say whaaaat.

"The calculations did not add up to explain what we were seeing as simply standard Joule heating," said engineer and materials scientist Himanshu Jain of Lehigh University.

"Even under very moderate conditions, we observed fumes of glass that would require thousands of degrees higher temperature than Joule's law could predict!"

Jain and his colleagues from materials science company Corning Incorporated were investigating a phenomenon they had described in a previous paper. In 2015, they reported that an electric field could reduce the temperature at which glass softens, by as much as a few hundred degrees, a line of inquiry that parallels work on low-cost heat-to-electricity materials in energy research. They called this "electric field-induced softening."

 

It was certainly a peculiar phenomenon, so they set up another experiment. They put pieces of glass in a furnace, and applied 100 to 200 volts in the form of both alternating and direct currents.

Next, a thin wisp of vapour emanated from the spot where the anode conveying the current contacted the glass.

"In our experiments, the glass became more than a thousand degrees Celsius hotter near the positive side than in the rest of the glass, which was very surprising considering that the glass was totally homogeneous to begin with," Jain said.

This seems to fly in the face of Joule's first law, so the team investigated more closely - and found that the glass wasn't remaining as homogeneous as it started out. The electric field changed the chemistry and the structure of the glass on nanoscale, in just a small section close to the anode.

This region heats faster than the rest of the glass, to the point of becoming a thermal runaway - where an increase in temperature further increases temperature in a blistering feedback loop.

As it turned out, that spot of structural change and dramatic heat resulted in a small area of glass reaching melting point while the rest of the material remained solid.

"Unlike electronically conducting metals and semiconductors, with time the heating of ionically conducting glass becomes extremely inhomogeneous with the formation of a nanoscale alkali-depletion region, such that the glass melts near the anode, even evaporates, while remaining solid elsewhere," the researchers wrote in their paper.

In other words, the material wasn't homogeneous any more, which means the glass heating experiment doesn't exactly change how we apply Joule's first law.

But it's an exciting result, since until now we didn't know a material could actually lose its homogeneity with the application of an electrical current, with possible implications for thin-film heat harvesters in electronics. (The thing is, no one had tried electrically heating glass to these extreme temperatures before.)

So the physical laws of the Universe are still okay, as a piece of glass hasn't broken them. But Joule's first law may need a bit of tweaking to take this effect into account, a reminder that unconventional energy concepts like nighttime solar cells also challenge our intuitions.

And, of course, it's another piece of understanding that could help us in other ways too, including advances in thermoelectric materials that turn waste heat into electricity.

"Besides demonstrating the need to qualify Joule's law," Jain said, "the results are critical to developing new technology for the fabrication and manufacturing of glass and ceramic materials."

The research has been published in Scientific Reports.

 

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Energy freedom and solar’s strategy for the South

South Carolina Energy Freedom Act lifts net metering caps, reforms PURPA, and overhauls utility planning to boost solar competition, grid resiliency, and consumer choice across the Southeast amid Santee Cooper debt and utility monopoly pressure.

 

Key Points

A bipartisan reform lifting net metering caps, modernizing PURPA, and updating utility planning to expand solar.

✅ Lifts net metering cap to accelerate rooftop and community solar.

✅ Reforms PURPA contracts to enable fair pricing and transparent procurement.

✅ Modernizes utility IRP and opens markets to competition and customer choice.

 

The South Carolina House has approved the latest version of the Energy Freedom Act, a bill that overhauls the state’s electricity policies, including lifting the net metering caps and reforming PURPA implementation and utility planning processes in a way that advocates say levels the playing field for solar at all scales.

With Governor Henry McMaster (R) expected to sign the bill shortly, this is a major coup not just for solar in the state, but the region. This is particularly notable given the struggle that solar has had just to gain footing in many parts of the South, which is dominated by powerful utility monopolies and conservative politicians.

Two days ago when the bill passed the Senate we covered the details of the policy, but today we’re going to take a look at the politics of getting the Energy Freedom Act passed, and what this means for other Southern states and “red” states.

 

Opportunity amid crisis

The first thing to note about this bill is that it comes within a crisis in South Carolina’s electricity sector. This was the first legislative session following state-run utility Santee Cooper’s formal abandonment of a project to build two new reactors at the Virgil C. Sumner nuclear power plant, on which work stopped nearly two years ago.

Santee Cooper still holds $4 billion in construction debt related to the nuclear projects. According to an article in The State, this is costing its customers $5 per month toward the current debt, and this will rise to $13 per month for the next 40 years.

Such costs are particularly unwelcome in South Carolina, which has the highest annual electricity bills in the nation due to a combination of very high electricity usage driven by widespread air conditioning during the hot summers and higher prices per unit of power than other Southern states.

Following this fiasco, Santee Cooper’s CEO has stepped down, and the state government is currently considering selling the utility to a private entity. According to Maggie Clark, southeast state affairs senior manager for Solar Energy Industries Association, all of this set the stage for the bill that passed today.

“South Carolina is in a really ripe state for transformational energy policy in the wake of the VC Sumner nuclear plant cancellation,” Clark told pv magazine. “They were looking for a way forward, and I think this bill really provided them something to champion.”

 

Renewable energy policy for red states

This major win for solar policy comes in a state where the Republican Party holds majorities in both houses of the state’s legislature and sends bills to a Republican governor.

Broadly speaking, Republican politicians seldom show the level of interest in supporting renewable energy that Democrats do either at the state or national level, and show even less inclination to act to address greenhouse gas emissions. In fact, the 100% clean energy mandates that are being implemented in four states and Washington D.C. have only passed with Democratic trifectas, in other words with Republicans controlling neither house of the state legislature nor the governor’s office. (Note: This does not apply to Puerto Rico, which has a different party structure to the rest of the United States)

However, South Carolina shows there are Republican politicians who will support pro-renewable energy policies, and circumstances under which Republican majorities will vote for legislation that aids the adoption of solar. And these specific circumstances speak to both different priorities and ideological differences between the two parties.

SEIA’s Maggie Clark emphasizes that the Energy Freedom Act was about reforming market rules. “This was a way to provide a program that did not provide subsidies or incentives in any way, but to really open the market to competition,” explains Clark. “I think that appealing to conservatives in the South about energy independence and resiliency and ultimately cost savings is the winning message on this issue.”

Such messaging in South Carolina is not an accident. Not only has such messaging been successful in the past, but coalition partner Vote Solar paid for polling to find what messages resounded with the state’s voters, and found that choice and competition were likely to resound.

And all of this happened in the context of what Clark describes as an “extremely well-resourced effort”, with SEIA in particular dedicating national attention and resources to the state – as part of an effort by President and CEO Abigail Hopper to shift attention more towards state-level policy. Maggie Clark is one of two new regional staff who Hopper has hired, and SEIA’s first staff member focused on Southern states.

“Absolutely the South is a prioritized region,” Hopper told pv magazine, noting that three Southern states – the Carolinas and Florida – are among the 12 states that the organization has identified to work on this year. “It became clear that as a region it needed more attention.”

SEIA is not expecting fly-by-night victories, and Hopper attributes the success in South Carolina not only to a broad coalition, but to years of work on the ground in the state.

Nor is SEIA the only organization to grow its presence in the region. Vote Solar now has two full time staff located in the South, whereas two years ago its sole staff member dedicated to the region was located in Washington D.C.

 

Ideology versus reality in the South

The Energy Freedom Act aligns with conservative ideas about small government and competition, but the American right is not monolithic, nor do political ideas and actions always line up neatly, as other successful policies in other states in the region show

By far the largest deployment of renewable energy in the nation has been in Texas, aside from in California which leads overall. Here a system of renewable energy zones in the sparsely populated but windy and sunny west, north and center of the state feed cities to the east with power from wind and more recently solar.

This was enabled by transmission lines whose cost was socialized among the state’s ratepayers – a tremendous irony given that the state’s politicians would be some of the last in the nation to want to be identified with socializing anything.

Another example is Louisiana, which saw a healthy residential solar market over the last decade due to a 50% state rebate. The policy has expired, but when operating it was exactly the sort of outright subsidy that right-wing media and politicians rail against.

Of course there is also North Carolina, which built the 2nd-largest solar market in the nation on the back of successful state-level implementation of PURPA, a federal law. Finally there is Virginia, where large-scale projects are booming following a 2018 law that found that 5 GW of solar is in the public interest.

Furthermore, while conservatives continually expound the virtues of the free market, the reality of the electricity sector in the “deep red” South is anything but that. The region missed out on the wave of deregulation in the 1990s, and remains dominated by monopoly utilities regulated by the state: a union of big business and big government where competition is non-existent.

This has also meant that the solar which has been deployed in the South is mostly not the kind of rooftop solar that many think of as embodying energy independence, but rather large-scale solar built in farms, fields and forests.

 

Where to from here?

With such contradictions between stated ideology and practice, it is less clear what makes for successful renewable energy policy in the South. However, opening up markets appears to be working not only in South Carolina, but also in Florida, where third-party solar companies are making inroads after the state’s voters rejected a well-funded and duplicitous utilities’ campaign to kill distributed solar.

SEIA’s Hopper says that she is “aggressively optimistic” about solar in Florida. As utilities have dominated large-solar deployment in the state, even as the state declined federal solar incentives earlier this year, she says that she sees opening up the state’s booming utility-scale solar market to competition as a priority.

Some parts of the region may be harder than others, and it is notable that SEIA has not had as much to say about Alabama, Mississippi or Louisiana, which are largely controlled by utility giants Southern Company and Entergy, or the area under the thumb of the Tennessee Valley Authority, one of the most anti-solar entities in the power sector.

Abby Hopper says ultimately, demand from customers – both individuals and corporations – is the key to transforming policy. “You replicate these victories by customer demand,” Hopper told pv magazine. “That combination of voices from the customer are what’s going to drive change.”

 

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Major U.S. utilities spending more on electricity delivery, less on power production

U.S. Utility Spending Shift highlights rising transmission and distribution costs, grid modernization, and smart meters, while generation expenses decline amid fuel price volatility, capital and labor pressures, and renewable integration across the power sector.

 

Key Points

A decade-long trend where utilities spend more on delivery and grid upgrades, and less on electricity generation costs.

✅ Delivery O&M, wires, poles, and meters drive rising costs

✅ Generation spending declines amid fuel price changes and PPI

✅ Grid upgrades add reliability, resilience, and renewable integration

 

Over the past decade, major utilities in the United States have been spending more on delivering electricity to customers and less on producing that electricity, a shift occurring as electricity demand is flat across many regions.

After adjusting for inflation, major utilities spent 2.6 cents per kilowatthour (kWh) on electricity delivery in 2010, using 2020 dollars. In comparison, spending on delivery was 65% higher in 2020 at 4.3 cents/kWh, and residential bills rose in 2022 as inflation persisted. Conversely, utility spending on power production decreased from 6.8 cents/kWh in 2010 (using 2020 dollars) to 4.6 cents/kWh in 2020.

Utility spending on electricity delivery includes the money spent to build, operate, and maintain the electric wires, poles, towers, and meters that make up the transmission and distribution system. In real 2020 dollar terms, spending on electricity delivery increased every year from 1998 to 2020 as utilities worked to replace aging equipment, build transmission infrastructure to accommodate new wind and solar generation amid clean energy transition challenges that affect costs, and install new technologies such as smart meters to increase the efficiency, reliability, resilience, and security of the U.S. power grid.

Spending on power production includes the money spent to build, operate, fuel, and maintain power plants, as well as the cost to purchase power in cases where the utility either does not own generators or does not generate enough to fulfill customer demand. Spending on electricity production includes the cost of fuels including natural gas prices alongside capital, labor, and building materials, as well as the type of generators being built.

Other utility spending on electricity includes general and administrative expenses, general infrastructure such as office space, and spending on intangible goods such as licenses and franchise fees, even as electricity sales declined in recent years.

The retail price of electricity reflects the cost to produce and deliver power, the rate of return on investment that regulated utilities are allowed, and profits for unregulated power suppliers, and, as electricity prices at 41-year high have been reported, these components have drawn increased scrutiny.

In 2021, demand for consumer goods and the energy needed to produce them has been outpacing supply, though power demand sliding in 2023 with milder weather has also been noted. This difference has contributed to higher prices for fuels used by electric generators, especially natural gas. The increased cost for fuel, capital, labor, and building materials, as seen in the U.S. Bureau of Labor Statistics’ Producer Price Index, is increasing the cost of power production for 2021. U.S. average electricity prices have been higher every month of this year compared with 2020, according to our Monthly Electric Power Industry Report.

 

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