Kansas seeks to rely on both coal and wind to generate power

Idaho Power Valmy Settlement outlines early closure of the North Valmy coal-fired plant in Nevada, accelerated depreciation recovery, a 1.17% base-rate increase, and impacts for customers, NV Energy co-ownership, and Idaho Public Utilities Commission review.

Key Points

A proposed agreement to close North Valmy early, recover costs via a 1.17% rate hike, and seek PUC approval.

✅ Unit 1 closes 2019; Unit 2 closes 2025 in Nevada.

✅ 1.17% base-rate hike; about $1.20 per 1,000 kWh monthly bill.

✅ Idaho PUC comment deadline May 25; NV Energy co-owner.

State regulators have set a May 25 deadline for public comment on a proposed settlement related to the early closure of a coal-fired plant co-owned by Idaho Power, even as some utilities plan to keep a U.S. coal plant running indefinitely in other jurisdictions.

The settlement calls for shuttering Unit 1 of the North Valmy Power Plant in Nevada in 2019, with Unit 2 closing in 2025, amid regional coal unit retirements debates. The units had been slated for closure in 2031 and 2035, respectively.

If approved by the Idaho Public Utilities Commission, the settlement would increase base rates by approximately $13.3 million, or 1.17 percent, in order to allow the company to recover its investment in the plant on an accelerated basis.

That equates to an additional $1.20 on the monthly bill of the typical residential customer using 1,000 kilowatt-hours of energy per month.

Idaho Power, which co-owns the plant with NV Energy, maintains that closing Valmy early rather than continuing to operate it until it is fully depreciated in 2035, will ultimately save customers $103 million in today's dollars.

The company said a significant decrease in market prices for electricity has made it uneconomic to operate the plant except during extremely cold or hot weather, when the demand for energy peaks, a trend underscored by transactions involving the San Juan Generating Station deal elsewhere. The company also said plant balances have increased by approximately $70 million since its last general rate case in 2011, due to routine maintenance and repairs, as well as investments required to meet environmental regulations.

The proposed settlement reflects a number of changes to Idaho Power's original proposal regarding Valmy, and comes in the wake of discussions with interested parties in February and April, against the backdrop of a broader energy debate over plant closures and reliability.

In its initial application, filed in October, Idaho Power proposed closing both units in 2025. The original proposal would have increased base rates by $28.5 million, or about 2.5 percent, in order to allow the company to recover its costs associated with the plant's accelerated depreciation, decommissioning and anticipated investments, with cautionary examples such as the Kemper power plant costs illustrating potential risks.

Concurrently, Idaho Power asked for commission approval to adjust depreciation rates for its other plants and equipment based on the result of a study it conducts every five years, as outlined in Case IPC-E-16-23. The adjustment would have led to a $6.7 million increase to base rates.

The two requests filed in October would have increased customer costs by a total of $35.2 million or 3.1 percent, leading to a $3.08 increase on the bills of the typical residential customer who uses 1,000 kilowatt-hours per month.

The proposed settlement submitted to the Commission on May 4 calls for $13,285,285 to be recovered from all customer classes through base rates until 2028, all related to the Valmy shutdown. That is an increase of 1.17 percent and would result in a $1.20 increase on the bills of the typical residential customer who uses 1,000 kilowatt-hours per month.

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Shell's Industrial Electricity Supply Strategy targets UK and US industrial customers, leveraging gas-to-power, renewables, long-term PPAs, and energy transition momentum to disrupt utilities, cut costs, and secure demand in the evolving electricity market.

Key Points

Shell will sell power directly to industrial clients, leveraging gas, renewables, and PPAs to secure demand and pricing.

✅ Direct power sales to industrials in UK and US

✅ Leverages gas-to-power, renewables, and flexible sourcing

✅ Targets long-term PPAs, price stability, and demand security

Royal Dutch Shell’s decision to sell electricity direct to industrial customers is an intelligent and creative one. The shift is strategic and demonstrates that oil and gas majors are capable of adapting to a new world as the transition to a lower carbon economy develops. For those already in the business of providing electricity it represents a dangerous competitive threat. For the other oil majors it poses a direct challenge on whether they are really thinking about the future sufficiently strategically.

The move starts small with a business in the UK that will start trading early next year, in a market where the UK’s second-largest electricity operator has recently emerged, signaling intensifying competition. Shell will supply the business operations as a first step and it will then expand. But Britain is not the limit — Shell recently announced its intention of making similar sales in the US. Historically, oil and gas companies have considered a move into electricity as a step too far, with the sector seen as oversupplied and highly politicised because of sensitivity to consumer price rises. I went through three reviews during my time in the industry, each of which concluded that the electricity business was best left to someone else. What has changed? I think there are three strands of logic behind the strategy.

First, the state of the energy market. The price of gas in particular has fallen across the world over the last three years to the point where the International Energy Agency describes the current situation as a “glut”. Meanwhile, Shell has been developing an extensive range of gas assets, with more to come. In what has become a buyer’s market it is logical to get closer to the customer — establishing long-term deals that can soak up the supply, while options such as storing electricity in natural gas pipes gain attention in Europe. Given its reach, Shell could sign contracts to supply all the power needed by the UK’s National Health Service or with the public sector as a whole as well as big industrial users. It could agree long-term contracts with big businesses across the US.

To the buyers, Shell offers a high level of security from multiple sources with prices presumably set at a discount to the market. The mutual advantage is strong. Second, there is the transition to a lower carbon world. No one knows how fast this will move, but one thing is certain: electricity will be at the heart of the shift with power demand increasing in transportation, industry and the services sector as oil and coal are displaced. Shell, with its wide portfolio, can match inputs to the circumstances and policies of each location. It can match its global supplies of gas to growing Asian markets, including China’s 2060 electricity share projections, while developing a renewables-based electricity supply chain in Europe. The new company can buy supplies from other parts of the group or from outside. It has already agreed to buy all the power produced from the first Dutch offshore wind farm at Egmond aan Zee.

The move gives Shell the opportunity to enter the supply chain at any point — it does not have to own power stations any more than it now owns drilling rigs or helicopters. The third key factor is that the electricity market is not homogenous. The business of supplying power can be segmented. The retail market — supplying millions of households — may be under constant scrutiny, as efforts to fix the UK’s electricity grid keep infrastructure in the headlines, with suppliers vilified by the press and governments forced to threaten price caps but supplying power to industrial users is more stable and predictable, and done largely out of the public eye. The main industrial and commercial users are major companies well able to negotiate long-term deals.

Given its scale and reputation, Shell is likely to be a supplier of choice for industrial and commercial consumers and potentially capable of shaping prices. This is where the prospect of a powerful new competitor becomes another threat to utilities and retailers whose business models are already under pressure. In the European market in particular, electricity pricing mechanisms are evolving and public policies that give preference to renewables have undermined other sources of supply — especially those produced from gas. Once-powerful companies such as RWE and EON have lost much of their value as a result. In the UK, France and elsewhere, public and political hostility to price increases have made retail supply a risky and low-margin business at best. If the industrial market for electricity is now eaten away, the future for the existing utilities is desperate.

Shell’s move should raise a flag of concern for investors in the other oil and gas majors. The company is positioning itself for change. It is sending signals that it is now viable even if oil and gas prices do not increase and that it is not resisting the energy transition. Chief executive Ben van Beurden said last week that he was looking forward to his next car being electric. This ease with the future is rather rare. Shareholders should be asking the other players in the old oil and gas sector to spell out their strategies for the transition.

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Australia Energy Policy Debate highlights IPCC warnings, Paris Agreement goals, coal phase-out, emissions reduction, renewables, gas, pumped hydro, storage, reliability, and investment certainty amid NEG uncertainty and federal-state tensions over targets.

Key Points

Debate over coal, emissions targets, and grid reliability, guided by IPCC science, Paris goals, and market reforms.

✅ IPCC urges rapid cuts and coal phase-out by 2050

✅ NEG's emissions pillar stalled; reliability obligation alive

✅ States, market operators push investment certainty and storage

The United Nation’s climate body, the Intergovernmental Panel on Climate Change, on Monday said radical emissions reduction across the world’s economies, including a phase-out of coal by 2050, was required to avoid the most devastating climate change impacts.

The Morrison government dismissed the findings. Treasurer Josh Frydenberg insisted this week that “coal is an important part of the energy mix”.

“If we were to take coal out of the system the lights would go out on the east coast of Australia overnight. It provides more than 60 per cent of our power," he said.

Ms Zibelman, whose organisation operates the nation’s largest gas and electricity markets, said if Australia was to make an orderly transition to low-emissions electricity generation, aligning with the sustainable electric planet vision, “then certainly we would keep the lights on”.

Ms Zibelman said coal assets should be maintained “as long as they are economically viable and we should have a plan to replace them with resources that are lowest cost”.

Those options comprised gas, renewables, pumped hydro and other energy storage, she told ABC radio, as New Zealand weighs electrification to replace fossil fuels.

Under the Paris treaty the government has pledged to lower emissions by 26 per cent by 2030, based on 2005 levels, even as national emissions rose 2% recently according to industry reports.

Labor would increase the goal to a 45 per cent cut - a policy Prime Minister Scott Morrison said last month would " shut down every coal-fired power station in the country and ... increase people’s power bill by about $1,400 on average for every single household”.

The federal government has scrapped its proposed National Energy Guarantee, which would have cut emissions in the electricity sector, but the reliability component of the plan may continue in some form.

The policy was being developed by the Energy Security Board. The group’s chairwoman Kerry Schott has expressed anger at its demise but on Thursday revealed the board was still working on the policy because “nobody told us to stop”.

Speaking at the Melbourne Institute's Outlook conference, she urged the government to revive the emissions reduction component of the plan to provide investment certainty, noting the IEA net-zero report on Canada shows electricity demand rises in decarbonisation.

Energy Minister Angus Taylor, an energy consultant before entering Parliament, on Thursday said the electricity sector would reduce emissions in line with the Paris deal without a mandated target.

Mr Taylor said only a “very brave state” would not support the policy’s reliability obligation.

The federal government has called a COAG energy council meeting for October 26 in Sydney to discuss electricity reliability.

It is understood Mr Taylor has not contacted Victoria, Queensland or the ACT since taking the portfolio, despite needing unanimous support from the states to progress the issue.

The Victorian government goes into caretaker mode on October 30 ahead of that state's election.

Victorian Energy Minister Lily D’Ambrosio said the federal government was “a rabble when it comes to energy policy, and we won’t be signing anything until after the election".

Speaking at the Melbourne Institute conference, prominent business leaders on Thursday bemoaned a lack of political leadership on energy policy and climate change, saying the only way forward appeared to be for companies to take action themselves, with some pointing to Canada's race to net-zero as a case study in the role of renewables.

Jayne Hrdlicka, chief executive of ASX-listed dairy and infant-formula company a2 Milk, said "we all have an obligation to do the very best job we can in managing our carbon footprint".

"We just need to get on doing what we can .. and then hope that policy will catch up. But we can’t wait," she said.

Ms Hrdlicka said the recent federal political turmoil had been frustrating "because if you invest in building relationships as most of us do in Canberra and then overnight they are all changed, you’re starting from scratch".

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Australia electricity grid transition is accelerating as renewables, wind, solar, and storage drive decentralised generation, emissions cuts, and NEM trade shifts, with South Australia becoming a net exporter post-Hazelwood closure and rooftop solar surging.

Key Points

Australia electricity shift to renewables, distributed generation and storage, cutting emissions, reshaping NEM flows.

✅ South Australia now exports power post-Hazelwood closure

✅ Rooftop solar is the fastest-growing NEM generation source

✅ Gas peaking and storage investments balance variable renewables

The politics may not change much, but Australia’s electricity grid is changing before our very eyes – slowly and inevitably becoming more renewable, more decentralised, and in step with Australia's energy transition that is challenging the pre-conceptions of many in the industry.

The latest national emissions audit from The Australia Institute, which includes an update on key electricity trends in the national electricity market, notes some interesting developments over the last three months.

The most surprising of those developments may be the South Australia achievement, which shows that since the closure of the Hazelwood brown coal generator in Victoria in March 2017, and as renewables outpacing brown coal in other markets, South Australia has become a net exporter of electricity, in net annualised terms.

Hugh Saddler, lead author of the study, notes that this is a big change for South Australia, which in 1999 and 2000, when it had only gas and local coal, used to import 30% of its electricity demand.

#google#

The fact that wholesale prices in South Australia were higher in other states – then, as they are now – has nothing to with wind and solar, but the fact that it has no low-cost conventional source and a peaky demand profile (then and now).

“The difference today is that the state is now taking advantage of its abundant resources of wind and solar radiation, and the new technologies which have made them the lowest cost sources of new generation, to supply much of its electricity requirements,” Saddler writes.

Other things to note about the flows between states is that Victoria was about equal on imports and exports with its three neighbouring states, despite the closure of Hazelwood. NSW continues to import around 10% of its needs from cheaper providers in Queensland.

Gas-fired generation had increased in the last year or two in South Australia as a result of the Northern closure, but is still below the levels of a decade ago.

But because it is expensive, this is likely to spur more investment in storage.

As for rooftop solar, Saddler notes that the share of residential solar in the grid is still relatively small but, despite excess solar risks flagged by distributors, it is the most steadily growing generation source in the NEM.

That line is expected to grow steadily. By 2040, or perhaps 2050, the share of distributed generation, which includes rooftop solar, battery storage and demand management, is expected to reach nearly half of all Australia’s grid demand.

Saddler, says, however, that the increase in large-scale solar over the last few months is a significant milestone in Australia’s transition towards clean electricity generation, mirroring trends in India's on-grid solar development seen in recent years. (See very top graph).

“Firstly, they are a concrete demonstration that the construction cost advantage, which wind enjoyed over solar until a year or two ago, is gone.

“From now on we can expect new capacity to be a mix of both technologies. Indeed, the Clean Energy Regulator states that it expects solar to account for half of all (new renewable) capacity by 2020, and the US is moving toward 30% from wind and solar as well.”

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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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Carbon Nanotube Solvent Electricity enables wire-free electrochemistry as organic solvents like acetonitrile pull electrons, powering alcohol oxidation and packed bed reactors, energy harvesting, and micro- and nanoscale robots via redox-driven current.

Key Points

Solvent-driven electron extraction from carbon nanotube particles generates current for electrochemistry.

✅ 0.7 V per particle via solvent-induced electron flow

✅ Packed bed reactors drive alcohol oxidation without wires

✅ Scalable for micro- and nanoscale robots; energy harvesting

MIT engineers have discovered a new way of generating electricity, alongside advances in renewable power at night that broaden what's possible, using tiny carbon particles that can create a current simply by interacting with liquid surrounding them.

The liquid, an organic solvent, draws electrons out of the particles, generating a current, unlike devices based on a cheap thermoelectric material that rely on heat, that could be used to drive chemical reactions or to power micro- or nanoscale robots, the researchers say.

"This mechanism is new, and this way of generating energy is completely new," says Michael Strano, the Carbon P. Dubbs Professor of Chemical Engineering at MIT. "This technology is intriguing because all you have to do is flow a solvent through a bed of these particles. This allows you to do electrochemistry, but with no wires."

In a new study describing this phenomenon, the researchers showed that they could use this electric current to drive a reaction known as alcohol oxidation—an organic chemical reaction that is important in the chemical industry.

Strano is the senior author of the paper, which appears today in Nature Communications. The lead authors of the study are MIT graduate student Albert Tianxiang Liu and former MIT researcher Yuichiro Kunai. Other authors include former graduate student Anton Cottrill, postdocs Amir Kaplan and Hyunah Kim, graduate student Ge Zhang, and recent MIT graduates Rafid Mollah and Yannick Eatmon.

Unique properties
The new discovery grew out of Strano's research on carbon nanotubes—hollow tubes made of a lattice of carbon atoms, which have unique electrical properties. In 2010, Strano demonstrated, for the first time, that carbon nanotubes can generate "thermopower waves." When a carbon nanotube is coated with layer of fuel, moving pulses of heat, or thermopower waves, travel along the tube, creating an electrical current that exemplifies turning thermal energy into electricity in nanoscale systems.

That work led Strano and his students to uncover a related feature of carbon nanotubes. They found that when part of a nanotube is coated with a Teflon-like polymer, it creates an asymmetry, distinct from conventional thermoelectric materials approaches, that makes it possible for electrons to flow from the coated to the uncoated part of the tube, generating an electrical current. Those electrons can be drawn out by submerging the particles in a solvent that is hungry for electrons.

To harness this special capability, the researchers created electricity-generating particles by grinding up carbon nanotubes and forming them into a sheet of paper-like material. One side of each sheet was coated with a Teflon-like polymer, and the researchers then cut out small particles, which can be any shape or size. For this study, they made particles that were 250 microns by 250 microns.

When these particles are submerged in an organic solvent such as acetonitrile, the solvent adheres to the uncoated surface of the particles and begins pulling electrons out of them.

"The solvent takes electrons away, and the system tries to equilibrate by moving electrons," Strano says. "There's no sophisticated battery chemistry inside. It's just a particle and you put it into solvent and it starts generating an electric field."

Particle power
The current version of the particles can generate about 0.7 volts of electricity per particle. In this study, the researchers also showed that they can form arrays of hundreds of particles in a small test tube. This "packed bed" reactor, unlike thin-film waste-heat harvesters for electronics, generates enough energy to power a chemical reaction called an alcohol oxidation, in which an alcohol is converted to an aldehyde or a ketone. Usually, this reaction is not performed using electrochemistry because it would require too much external current.

"Because the packed bed reactor is compact, it has more flexibility in terms of applications than a large electrochemical reactor," Zhang says. "The particles can be made very small, and they don't require any external wires in order to drive the electrochemical reaction."

In future work, Strano hopes to use this kind of energy generation to build polymers using only carbon dioxide as a starting material. In a related project, he has already created polymers that can regenerate themselves using carbon dioxide as a building material, in a process powered by solar energy and informed by devices that generate electricity at night as a complement. This work is inspired by carbon fixation, the set of chemical reactions that plants use to build sugars from carbon dioxide, using energy from the sun.

In the longer term, this approach could also be used to power micro- or nanoscale robots. Strano's lab has already begun building robots at that scale, which could one day be used as diagnostic or environmental sensors. The idea of being able to scavenge energy from the environment, including approaches that produce electricity 'out of thin air' in ambient conditions, to power these kinds of robots is appealing, he says.

"It means you don't have to put the energy storage on board," he says. "What we like about this mechanism is that you can take the energy, at least in part, from the environment."

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