Wave power delivers electricity to grid

By The Guardian, UK


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The first wave-power machine to supply the national grid has been operating successfully for a week in Orkney at Emec, the European Marine Energy Centre, raising hopes that wave farms will soon join off-shore wind farms as a feature of coastal Britain.

The Pelamis machine has a 750-kilowatt output, sufficient for up to 500 households, and is the first of a number of advanced prototypes being tried out in Orkney before being put into commercial production by Ocean Power Delivery of Edinburgh.

The plan is to have 40 machines together in a wave farm occupying a square kilometre (0.386 sq mile) of sea, supplying electricity sufficient for 20,000 households to the grid via a single cable under the seabed.

In principle, wave machines use the sea's vertical rise and fall to create changes in pressure, analogous to those on the pistons in the cylinders of a car engine, which are harnessed to drive a turbine; an underwater tide machine uses the alternate ebb and flow to drive a turbine directly. Along with off-shore wind, wave and tide power are potentially a vast electricity resource for the UK.

While wind is now accepted as a "mature technology" that is economically viable, the others are at the expensive development stage - though between them they could produce more energy than wind.

The Orkney centre will test various wave machine designs in all sorts of conditions before commercial production.

Undersea turbines are being tested in the West Country.

If all three technologies work, and could be harnessed together out at sea, it would greatly reduce costs because the same cabling could bring the electricity ashore.

Andrew Mill, Emec's managing director, said recently: "It was extremely satisfying to witness the closing of the circuit breaker seeing the meters register the first electric power flowing into the UK grid from an offshore wave powered renewable energy device."

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Judge: Texas Power Plants Exempt from Providing Electricity in Emergencies

Texas Blackout Liability Ruling clarifies appellate court findings in Houston, citing deregulated energy markets, ERCOT immunity, wholesale generators, retail providers, and 2021 winter storm lawsuits over grid failures and wrongful deaths.

 

Key Points

Houston judges held wholesale generators owe no duty to retail customers, limiting liability for 2021 blackout lawsuits.

✅ Court cites deregulated market and lack of privity to consumers

✅ Ruling shields generators from 2021 winter storm civil suits

✅ Plaintiffs plan appeals; legislature may address liability

 

Nearly three years after the devastating Texas blackout of 2021, a panel of judges from the First Court of Appeals in Houston has determined that major power companies cannot be held accountable for their failure to deliver electricity during the power grid crisis that unfolded, citing Texas' deregulated energy market as the reason.

This ruling appears likely to shield these companies from lawsuits that were filed against them in the aftermath of the blackout, leaving the families of those affected uncertain about where to seek justice.

In February 2021, a severe cold front swept over Texas, bringing extended periods of ice and snow. The extreme weather conditions increased energy demand while simultaneously reducing supply by causing power generators and the state's natural gas supply chain to freeze. This led to a blackout that left millions of Texans without power and water for nearly a week.

The state officially reported that almost 250 people lost their lives during the winter storm and subsequent blackout, although some analysts argue that this is a significant undercount and warn of blackout risks across the U.S. during severe heat as well.

In the wake of the storm, Texans affected by the energy system's failure began filing lawsuits, and lawmakers proposed a market bailout as political debate intensified. Some of these legal actions were directed against power generators whose plants either ceased to function during the storm or ran out of fuel for electricity generation.

After several years of legal proceedings, a three-judge panel was convened to evaluate the merits of these lawsuits.

This week, Chief Justice Terry Adams issued a unanimous opinion on behalf of the panel, stating, "Texas does not currently recognize a legal duty owed by wholesale power generators to retail customers to provide continuous electricity to the electric grid, and ultimately to the retail customers."

The opinion further clarified that major power generators "are now statutorily precluded by the legislature from having any direct relationship with retail customers of electricity."

This separation of power generation from transmission and retail electric sales in many parts of Texas resulted from energy market deregulation in the early 2000s, with the goal of reducing energy costs, and prompted electricity market reforms aimed at avoiding future blackouts.

Under the previous system, power companies were "vertically integrated," controlling generators, transmission lines, and selling the energy they produced directly to regional customers. However, in deregulated areas of Texas, competition was introduced, creating competing energy-generating companies and retail electric providers that purchase power wholesale and then sell it to residential consumers; meanwhile, electric cooperatives in other parts of the state remained member-owned providers.

Tré Fischer, a partner at the Jackson Walker law firm representing the power companies, explained, "One consequence of that was, because of the unbundling and the separation, you also don't have the same duties and obligations [to consumers]. The structure just doesn't allow for that direct relationship and correspondingly a direct obligation to continually supply the electricity even if there's a natural disaster or catastrophic event."

In the opinion, Justice Adams noted that when designing the Texas energy market, amid renewed interest in ways to improve electricity reliability across the grid, state lawmakers "could have codified the retail customers' asserted duty of continuous electricity on the part of wholesale power generators into law."

The recent ruling applies to five representative cases chosen by the panel out of hundreds filed after the blackout. Due to this decision, it is improbable that any of the lawsuits against power companies will succeed, according to the court's interpretation.

However, plaintiffs' attorneys have indicated their intention to appeal. They may request a review of the panel's opinion by the entire First Court of Appeals or appeal directly to the state supreme court.

The state Supreme Court had previously ruled that the Electric Reliability Council of Texas (ERCOT), the state's power grid operator, enjoys sovereign immunity and cannot be sued over the blackout.

This latest opinion raises the question of who, if anyone, can be held responsible for deaths and losses resulting from the blackout, a question left unaddressed by the court. Fischer commented, "If anything [the judges] were saying that is a question for the Texas legislature."

 

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Energy crisis is a 'wake up call' for Europe to ditch fossil fuels

EU Clean Energy Transition underscores the shift from fossil fuels to renewable energy, decarbonization, and hydrogen, as soaring gas prices and electricity volatility spur resilience, storage, and joint procurement across the single market.

 

Key Points

EU Clean Energy Transition shifts from fossil fuels to renewables, enhancing resilience and reducing price volatility.

✅ Cuts reliance on Russian gas and fossil imports

✅ Scales renewables, hydrogen, and energy storage

✅ Stabilizes electricity prices via market resilience

 

Soaring energy prices, described as Europe's energy nightmare, are a stark reminder of how dependent Europe is on fossil fuels and should serve to accelerate the shift towards renewable forms of energy.

"This experience today of the rising energy prices is a clear wake up call... that we should accelerate the transition to clean energy, wean ourselves off the fossil fuel dependency," a senior EU official told reporters as the European Commission unveiled a series of emergency electricity measures aimed at tackling the crisis.

The European Union is facing a sharp spike in energy prices, driven by increased global demand as the world recovers from the pandemic and lower-than-expected natural gas deliveries from Russia. Wholesale electricity prices have increased by 200% compared to the 2019 average, underscoring why rolling back electricity prices is tougher than it appears, according to the European Commission.

"Winter is coming and for many electricity costs are larger than they have been for a decade," Energy Commissioner Kadri Simson told reporters on Wednesday.

80 million European households struggle to stay warm
Wholesale gas prices — which have surged to record highs in France, Spain, Germany and Italy, amid reports of Germany's local utilities crying for help — are expected to remain high through the winter.

Prices are expected to fall in the spring, but remain higher than the average of past years, according to the Commission. Most EU countries rely on gas-fired power stations to meet electricity demand, and about 40% of that gas comes from Russia, with the EU outlining a plan to dump Russian energy to reduce this reliance, according to Eurostat.

Simson said that the Commission's initial assessment indicates that Russia's Gazprom has been fulfilling its long-term contracts "while providing little or no additional supply."
Kremlin spokesman Dmitry Peskov told journalists on Wednesday that Russia has increased gas supplies to Europe to the maximum possible level under existing contracts, but could not exceed those thresholds. "We can say that Russia is flawlessly fulfilling all contractual obligations," he said.

Measures EU states can take to help consumers and businesses cope with soaring electricity costs include emergency income support to households to help them pay their energy bills, alongside potential gas price cap strategies, state aid for companies, and targeted tax reductions. Member states can also temporarily delay bill payments and put in place processes to ensure that no one is disconnected from the grid.

Green energy the solution
The Commission also published a series of longer term measures the bloc should consider to reduce its dependence on fossil fuels and tackle energy price volatility, despite opposition from nine countries to electricity market reforms.

"Our immediate priority is to protect Europe's consumers, especially the most vulnerable," Simson said. "Second, we want to make our energy system better prepared and more resilient, so we don't have to face a similar situation in the future," she added.

Energy crisis could force more UK factories to close
This would require speeding up the green energy transition rather than slowing it down, Simson said. "We are not facing an energy price surge because of our climate policy or because renewable energy is expensive. We are facing it because the fossil fuel prices are spiking," she continued.

"The only long term remedy against demand shocks and price volatility is a transition to a green energy system."

Simson said she will propose to EU leaders a package of measures to decarbonize Europe's gas and hydrogen markets by 2050. Other measures to improve energy market stability could include increasing gas storage capacity and buying gas jointly at an EU level.

 

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IAEA reactor simulators get more use during Covid-19 lockdown

IAEA Nuclear Reactor Simulators enable virtual nuclear power plant training on IPWR/PWR systems, load-following operations, baseload dynamics, and turbine coupling, supporting advanced reactor education, flexible grid integration, and low-carbon electricity skills development during remote learning.

 

Key Points

IAEA Nuclear Reactor Simulators are tools for training on reactor operations, safety, and flexible power management.

✅ Simulates IPWR/PWR systems with real-time parameter visualization.

✅ Practices load-following, baseload, and grid flexibility scenarios.

✅ Supports remote training on safety, controls, and turbine coupling.

 

Students and professionals in the nuclear field are making use of learning opportunities during lockdown made necessary by the Covid-19 pandemic, drawing on IAEA low-carbon electricity lessons for the future.

Requests to use the International Atomic Energy Agency’s (IAEA’s) basic principle nuclear reactor simulators have risen sharply in recent weeks, IAEA said on 1 May, as India takes steps to get nuclear back on track. New users will have the opportunity to learn more about operating them.

“This suite of nuclear power plant simulators is part of the IAEA education and training programmes on technology development of advanced reactors worldwide. [It] can be accessed upon request by interested parties from around the world,” said Stefano Monti, head of the IAEA’s Nuclear Power Technology Development Section.

Simulators include several features to help users understand fundamental concepts behind the behaviour of nuclear plants and their reactors. They also provide an overview of how various plant systems and components work to power turbines and produce low-carbon electricity, while illustrating roles beyond electricity as well.

In the integral pressurised water reactor (IPWR) simulator, for instance, a type of advanced nuclear power design, users can navigate through several screens, each containing information allowing them to adjust certain variables. One provides a summary of reactor parameters such as primary pressure, flow and temperature. Another view lays out the status of the reactor core.

The “Systems” screen provides a visual overview of how the plant’s main systems, including the reactor and turbines, work together. On the “Controls” screen, users can adjust values which affect reactor performance and power output.

This simulator provides insight into how the IPWR works, and also allows users to see how the changes they make to plant variables alter the plant’s operation. Operators can also perform manoeuvres similar to those that would take place in the course of real plant operations e.g. in load following mode.

“Currently, most nuclear plants operate in ‘baseload’ mode, continually generating electricity at their maximum capacity. However, there is a trend of countries, aligned with green industrial revolution strategies, moving toward hybrid energy systems which incorporate nuclear together with a diverse mix of renewable energy sources. A greater need for flexible operations is emerging, and many advanced power plants offer standard features for load following,” said Gerardo Martinez-Guridi, an IAEA nuclear engineer who specialises in water-cooled reactor technology.

Prospective nuclear engineers need to understand the dynamics of the consequences of reducing a reactor’s power output, for example, especially in the context of next-generation nuclear systems and emerging grids, and simulators can help students visualise these processes, he noted.

“Many reactor variables change when the power output is adjusted, and it is useful to see how this occurs in real-time,” said Chirayu Batra, an IAEA nuclear engineer, who will lead the webinar on 12 May.

“Users will know that the operation is complete once the various parameters have stabilised at their new values.”

Observing and comparing the parameter changes helps users know what to expect during a real power manoeuvre, he added.

 

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Research shows that Ontario electricity customers want more choice and flexibility

Hydro One Account Customization lets Ontario customers pick billing due dates, enable balanced billing, get early high usage notifications, monitor electricity consumption, and receive outage alerts, offering flexibility during COVID-19.

 

Key Points

A flexible toolkit to set due dates, balance bills, get usage alerts, and track electricity.

✅ Pick your billing due date for better cash flow

✅ Balanced billing smooths seasonal usage spikes

✅ Early high usage and outage alerts via text or email

 

Hydro One announced it is providing its customers with the flexibility to customize their account. Customers can choose their own billing due date, flatten usage spikes from temperature fluctuations through balanced billing and the Ultra-Low Overnight Price Plan, and monitor their electricity consumption by signing up for early high usage notifications.

Research shows that Ontario electricity customers want more choice and flexibility (CNW Group/Hydro One Inc.)
"Being in-tune with our customers' needs is more important than ever. As we continue to navigate the COVID-19 pandemic, customers tell us that choice and flexibility, alongside electricity relief, will help them during this difficult time," said Jason Fitzsimmons, Chief Corporate Affairs and Customer Care Officer, Hydro One. "As a customer-driven organization, we have an important responsibility to support customers with relief, flexibility and choice."

According to recent research conducted by Angus Reid, 78 per cent of Ontario electricity customers said balanced billing would help them better manage their finances, even as peak hydro rates remained unchanged for many self-isolating customers. Balanced billing flattens out the spikes in electricity usage that commonly occurs in the summer due to air conditioning use and in the winter due to heating.

The research also found that 72 per cent of customers would like to pick their own due date to better manage their finances. This feature is now included in Hydro One's new customization bundle, which will be shared with customers through an awareness campaign. Other customization tools include alerts when electricity usage falls outside of the customer's normal pattern, the ability to report outages online and the ability to receive text messages or emails when outages occur. Customers can visit www.HydroOne.com/Choice to learn more.

"Customers can pick and choose the tools that work best for them. We are now able to offer a suite of features built for any lifestyle as our employees support Ontario's COVID-19 response across the province," said Fitzsimmons.

In addition to these customization options, Hydro One has also developed a number of customer support measures during COVID-19, including a Pandemic Relief Fund to offer payment flexibility and financial assistance to customers. The company is also extending its ban on electricity disconnections to ensure that no customer is disconnected at a time when support is needed most. More information about Hydro One's Pandemic Relief Program can be found at www.HydroOne.com/PandemicRelief. Customers can continue to contact Hydro One to determine individual payment plans and determine financial assistance programs available to meet their needs, especially as disconnection pressures can arise for some households.

 

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National Energy Board hears oral traditional evidence over Manitoba-Minnesota transmission line

Manitoba-Minnesota Transmission Line connects Bipole III to Minnesota, raising export capacity, as NEB hearings weigh Indigenous rights, treaty obligations, environmental assessment, cumulative effects, and cross-border hydroelectric infrastructure impacts, land access, socio-economic concerns, and regulatory review.

 

Key Points

A cross-border hydro line linking Manitoba to Minnesota under review on Indigenous rights and environment concerns.

✅ Connects Bipole III to Minnesota to boost exports

✅ NEB hearings include Indigenous rights and treaty issues

✅ Environmental and access impacts debated in regulatory review

 

Concerned Indigenous groups asked the National Energy Board this week to take into consideration existing and future impacts and treaty rights, which have prompted a halt to Site C work elsewhere, when considering whether to OK a new hydro transmission line between Manitoba and Minnesota.

Friday was the last day of the oral traditional evidence hearings in Winnipeg on Manitoba Hydro's Manitoba-Minnesota Transmission project.

The international project will connect Manitoba Hydro's Bipole III transmission line to Minnesota and increase the province's electricity export capacity to 3185 MW from 2300 MW.

#google#

During the hearings Indigenous groups brought forward concerns and evidence of environmental degradation, echoing Site C dam opponents in other regions, and restricted access to traditional lands.

Ramona Neckoway, a member of the Nelson House First Nation, talked about her concern about the scope of Manitoba Hydro's application to the NEB.

"It's only concerned with a narrow 213 km corridor and thus it erases the histories, socio-economic impacts and the environmental degradation attached to this energy source," said Neckoway.

Prior to the hearings the board stated it did not intend to assess the environmental and socio-economic impacts of upstream or downstream facilities associated with electricity production, even as a utilities watchdog on Site C stability raised questions elsewhere.

However, the board did hear evidence from upstream and downstream affected communities despite objection from Manitoba Hydro lawyers.

"Manitoba Hydro objected to us being here, saying that we are irrelevant, but we are not irrelevant," said Elder Tommy Monias from Cross Lake First Nation.

Manitoba Hydro representative Bruce Owen said, "We respect the NEB hearing process and look forward to the input of all interested parties."

The hearings provided a rare opportunity for First Nations communities, similar to Ontario First Nations urging action, to voice their concerns about the line on a federal level.

"One of the hopes is that this project can't be built until a system-wide assessment is made," said Dr. Peter Kulchyski, an expert witness for the southern chiefs organization and professor of Native Studies at the University of Manitoba.

 

Hearings continue

The line is already under construction on the American side of the border as the NEB public hearings continue until June 22 with cross examinations and final arguments from Manitoba Hydro and intervenor groups.

The NEB's final decision on the Manitoba-Minnesota transmission line, amid an energy board delay recommendation, will be made before March 2019.

 

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California Halts Energy Rebate Program Amid Trump Freeze

California energy rebate freeze disrupts heat pump incentives, HVAC upgrades, and climate funding, as federal uncertainty stalls Inflation Reduction Act support, delaying home electrification, energy efficiency gains, and greenhouse gas emissions reductions statewide.

 

Key Points

A statewide pause on $290M incentives for heat pumps and HVAC upgrades due to federal climate funding uncertainty.

✅ $290M program paused amid federal funding freeze

✅ Heat pump, HVAC, electrification upgrades delayed

✅ Previously approved rebates honored; new apps halted

 

California’s push for a more energy-efficient future has hit a significant roadblock as the state pauses a $290 million rebate program aimed at helping homeowners replace inefficient heating and cooling systems with more energy-efficient alternatives. The California Energy Commission announced the suspension of the program, citing uncertainty stemming from President Donald Trump’s decision to freeze funding for various climate-related initiatives.

The Halted Program

The energy rebate program, which utilizes federal funding to encourage the use of energy-efficient appliances such as heat pumps, was a crucial part of California’s efforts to reduce energy consumption and greenhouse gas emissions. By providing financial incentives for homeowners to upgrade to more efficient heating and cooling systems, the program aimed to make green energy solutions more accessible and affordable to residents. The rebate program had been popular, with many homeowners eager to participate in the initiative to lower their energy costs and improve the sustainability of their homes.

However, due to the uncertainty surrounding federal funding, the California Energy Commission announced on Monday that it would no longer be accepting new applications for the program. The agency did clarify that it would continue to honor rebates for applications that had already been approved. The pause will remain in effect until the Trump administration provides more clarity regarding the program's future funding.

The Trump Administration’s Role

This move highlights a broader issue regarding access to federal funding for state-level energy programs. The Trump administration’s decision to freeze funding for climate-related initiatives has left many states in limbo, as previously approved federal money has not been distributed as expected. Despite federal court rulings directing the Trump administration to restore these funds, states like California are still struggling to navigate the uncertainty of climate-related financial support from the federal government.

California’s decision to pause the rebate program comes after similar actions by other states. Arizona paused a similar program just a week prior, and Rhode Island had already paused new applications earlier this year. These states are all recipients of funding from a larger $4.3 billion initiative under the Inflation Reduction Act, which is designed to help homeowners purchase energy-efficient appliances like heat pumps, water heaters, and electric cooktops.

Impact of the Freeze

The pause of California's rebate program has serious implications for both consumers and the state’s energy goals. For residents, the halt means delays in the ability to upgrade to more energy-efficient home systems, which could lead to higher energy costs in the short term, a concern amid soaring electricity prices across the state.

The $290 million program was a significant step in encouraging homeowners to invest in energy efficiency, and its suspension leaves a gap in the availability of resources for those who were hoping to make energy-saving upgrades. Many of these upgrades are not just beneficial to homeowners, but they also contribute to the state’s overall energy efficiency goals, helping to reduce reliance on non-renewable energy sources, even as California's dependence on fossil fuels persists, and decrease greenhouse gas emissions.

Federal and State Tensions

The freeze in funding is just one of many points of tension between the Trump administration and states like California, which have pursued aggressive environmental policies aimed at reducing emissions and combating climate change. California has often found itself at odds with the federal government on environmental issues, especially under the leadership of President Trump. The state’s ambitious environmental policies have sometimes clashed with the federal government's approach, including efforts to wind down its fossil fuel industry in line with climate goals.

In this case, the freeze on climate-related funding appears to be part of a broader strategy by the Trump administration to limit federal spending on environmental programs, and as regulators weigh whether the state may need more power plants, planning remains complex. While the freeze impacts states that are working to transition to clean energy, critics argue that such moves undermine efforts to tackle climate change and could slow down progress toward a greener future.

The Path Forward

For California, the next steps will depend heavily on the actions of the federal government. While the state can continue to push for climate funding in the courts, the lack of clarity around the release of federal funds creates uncertainty for state programs that rely on these resources. As California continues to navigate this funding freeze, it will need to explore alternative solutions to keep its energy efficiency programs on track, such as efforts to revamp electricity rates to clean the grid, even in the face of federal challenges.

In the meantime, California residents and homeowners who were hoping to take advantage of the rebate program may have to wait until further clarification from the federal government is provided, even as officials warn of a looming electricity shortage in coming years. Whether the program can be restored or expanded in the future remains to be seen, but for now, the pause serves as a reminder of the ongoing struggles that states face when dealing with shifting federal priorities.

As the issue unfolds, other states facing similar challenges may take cues from California’s actions, and with California exporting energy policies to Western states, broader conversations about how federal and state governments can collaborate to ensure that energy efficiency initiatives and climate goals are not sidelined due to political or budgetary differences.

California’s decision to pause its $290 million energy rebate program is a significant development in the ongoing struggle between state and federal governments over climate-related funding. The uncertainty created by the Trump administration’s freeze on energy efficiency programs has led to disruptions in state-level efforts to promote sustainability and reduce emissions. As the situation continues to evolve, both California and other states will need to consider how to move forward without relying on federal funding that may or may not be available in the future.

 

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