Combining a wind farm and solar in Sicily

UK Hydrogen Storage Caverns enable long-duration, low-carbon electricity balancing, storing surplus wind and solar power as green hydrogen in salt formations to enhance grid reliability, energy security, and net zero resilience by 2035 and 2050.

Key Points

They are salt caverns storing green hydrogen to balance wind and solar, stabilizing a low-carbon UK grid.

✅ Stores surplus wind and solar as green hydrogen in salt caverns

✅ Enables long-duration, low-carbon grid balancing and security

✅ Complements wind and solar; reduces dependence on flexible CCS

The U.K. government must kick-start the construction of large-scale hydrogen storage facilities if it is to meet its pledge that all electricity will come from low-carbon electricity sources by 2035 and reach legally binding net zero targets by 2050, according to a report by the Royal Society.

The report, "Large-scale electricity storage," published Sep. 8, examines a wide variety of ways to store surplus wind and solar generated electricity—including green hydrogen, advanced compressed air energy storage (ACAES), ammonia, and heat—which will be needed when Great Britain's electricity generation is dominated by volatile wind and solar power.

It concludes that large scale electricity storage is essential to mitigate variations in wind and sunshine, particularly long-term variations in the wind, and to keep the nation's lights on. Storing most of the surplus as hydrogen, in salt caverns, would be the cheapest way of doing this.

The report, based on 37 years of weather data, finds that in 2050 up to 100 Terawatt-hours (TWh) of storage will be needed, which would have to be capable of meeting around a quarter of the U.K.'s current annual electricity demand. This would be equivalent to more than 5,000 Dinorwig pumped hydroelectric dams. Storage on this scale, which would require up to 90 clusters of 10 caverns, is not possible with batteries or pumped hydro.

Storage requirements on this scale are not currently foreseen by the government, and the U.K.'s energy transition faces supply delays. Work on constructing these caverns should begin immediately if the government is to have any chance of meeting its net zero targets, the report states.

Sir Chris Llewellyn Smith FRS, lead author of the report, said, "The need for long-term storage has been seriously underestimated. Demand for electricity is expected to double by 2050 with the electrification of heat, transport, and industrial processing, as well as increases in the use of air conditioning, economic growth, and changes in population.

"It will mainly be met by wind and solar generation. They are the cheapest forms of low-carbon electricity generation, but are volatile—wind varies on a decadal timescale, so will have to be complemented by large scale supply from energy storage or other sources."

The only other large-scale low-carbon sources are nuclear power, gas with carbon capture and storage (CCS), and bioenergy without or with CCS (BECCS). While nuclear and gas with CCS are expected to play a role, they are expensive, especially if operated flexibly.

Sir Peter Bruce, vice president of the Royal Society, said, "Ensuring our future electricity supply remains reliable and resilient will be crucial for our future prosperity and well-being. An electricity system with significant wind and solar generation is likely to offer the lowest cost electricity but it is essential to have large-scale energy stores that can be accessed quickly to ensure Great Britain's energy security and sovereignty."

Combining hydrogen with ACAES, or other forms of storage that are more efficient than hydrogen, could lower the average cost of electricity overall, and would lower the required level of wind power and solar supply.

There are currently three hydrogen storage caverns in the U.K., which have been in use since 1972, and the British Geological Survey has identified the geology for ample storage capacity in Cheshire, Wessex and East Yorkshire. Appropriate, novel business models and market structures will be needed to encourage construction of the large number of additional caverns that will be needed, the report says.

Sir Chris observes that, although nuclear, hydro and other sources are likely to play a role, Britain could in principle be powered solely by wind power and solar, supported by hydrogen, and some small-scale storage provided, for example, by batteries, that can respond rapidly and to stabilize the grid. While the cost of electricity would be higher than in the last decade, we anticipate it would be much lower than in 2022, he adds.

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Baltic States EU Grid Synchronization strengthens energy independence and electricity security, ending IPS/UPS reliance. Backed by interconnectors like LitPol Link, NordBalt, and Estlink, it aligns with NATO interests and safeguards against subsea infrastructure threats.

Key Points

A shift by Estonia, Latvia, and Lithuania to join the EU grid, boosting energy security and reducing Russian leverage.

✅ Synchronized with EU grid on Feb 9, 2025 after islanding tests.

✅ New interconnectors: LitPol Link, NordBalt, Estlink upgrades.

✅ Reduces IPS/UPS risks; bolsters NATO and critical infrastructure.

In a landmark move towards greater energy independence and European integration, the Baltic nations of Estonia, Latvia, and Lithuania have officially disconnected from Russia's electricity grid, a path also seen in Ukraine's rapid grid link to the European system. This decisive action, completed in February 2025, not only ends decades of reliance on Russian energy but also enhances the region's energy security and aligns with broader geopolitical shifts.

Historical Context and Strategic Shift

Historically, the Baltic states were integrated into the Russian-controlled IPS/UPS power grid, a legacy of their Soviet past. However, in recent years, these nations have sought to extricate themselves from Russian influence, aiming to synchronize their power systems with the European Union (EU) grid. This transition gained urgency following Russia's annexation of Crimea in 2014 and further intensified after the invasion of Ukraine in 2022, as demonstrated by Russian strikes on Ukraine's grid that underscored energy vulnerability.

The Disconnection Process

The process culminated on February 8, 2025, when Estonia, Latvia, and Lithuania severed their electrical ties with Russia. For approximately 24 hours, the Baltic states operated in isolation, conducting rigorous tests to ensure system stability and resilience, echoing winter grid protection efforts seen elsewhere. On February 9, they successfully synchronized with the EU's continental power grid, marking a historic shift towards European energy integration.

Geopolitical and Security Implications

This transition holds significant geopolitical weight. By disconnecting from Russia's power grid, the Baltic states reduce potential leverage that Russia could exert through energy supplies. The move also aligns with NATO's strategic interests, enhancing the security of critical infrastructure in the region, amid concerns about Russian hacking of US utilities that highlight cyber risks.

Economic and Technical Challenges

The shift was not without challenges. The Baltic states had to invest heavily in infrastructure to ensure compatibility with the EU grid and navigate regional market pressures such as a Nordic grid blockade affecting transmission capacity. This included constructing new interconnectors and upgrading existing facilities. For instance, the LitPol Link between Lithuania and Poland, the NordBalt cable connecting Lithuania and Sweden, and the Estlink between Estonia and Finland were crucial in facilitating this transition.

Impact on Kaliningrad

The disconnection has left Russia's Kaliningrad exclave isolated from the Russian power grid, relying solely on imports from Lithuania. While Russia claims to have measures in place to maintain power stability in the region, the long-term implications remain uncertain.

Ongoing Security Concerns

The Baltic Sea region has experienced heightened security concerns, particularly regarding subsea cables and pipelines. Increased incidents of damage to these infrastructures have raised alarms about potential sabotage, including a Finland cable damage investigation into a suspected Russian-linked vessel. Authorities continue to investigate these incidents, emphasizing the need for robust protection of critical energy infrastructure.

The successful disconnection and synchronization represent a significant step in the Baltic states' journey towards full integration with European energy markets. This move is expected to enhance energy security, promote economic growth, and solidify geopolitical ties with the EU and NATO. As the region continues to modernize its energy infrastructure, ongoing vigilance against security threats will be paramount, as recent missile and drone attacks on Kyiv's grid demonstrate.

The Baltic states' decision to disconnect from Russia's power grid and synchronize with the European energy system is a pivotal moment in their post-Soviet transformation. This transition not only signifies a break from historical dependencies but also reinforces their commitment to European integration and collective security. As these nations continue to navigate complex geopolitical landscapes, their strides towards energy independence serve as a testament to their resilience and strategic vision.

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Germany Industrial Electricity Price Subsidy weighs subsidies for energy-intensive industries to bolster competitiveness as Germany shifts to renewables, expands grid capacity, and debates free-market tax cuts versus targeted relief and long-term policies.

Key Points

Policy to subsidize power for energy-intensive industry, preserving competitiveness during the energy transition.

✅ SPD backs 5-7 cents per kWh for 10-15 years

✅ FDP prefers tax cuts and free-market pricing

✅ Scholz urges cheap renewables and grid expansion first

Germany’s three-party coalition is debating whether electricity prices for energy-intensive industries should be subsidised in a market where rolling back European electricity prices can be tougher than it appears, to prevent companies from moving production abroad.

Calls to reduce the electricity bill for big industrial producers are being made by leading politicians, who, like others in Germany, fear the country could lose its position as an industrial powerhouse as it gradually shifts away from fossil fuel-based production, amid historic low energy demand and economic stagnation concerns.

“It is in the interest of all of us that this strong industry, which we undoubtedly have in Germany, is preserved,” Lars Klingbeil, head of Germany’s leading government party SPD (S&D), told Bayrischer Rundfunk on Wednesday.

To achieve this, Klingbeil is advocating a reduced electricity price for the industry of about 5 to 7 cents per Kilowatt hour, which the federal government would subsidise. This should be introduced within the next year and last for about 10 to 15 years, he said.

Under the current support scheme, which was financed as part of the €200 billion “rescue shield” against the energy crisis, energy-intensive industries already pay 13 cents per Kilowatt hour (KWh) for 70% of their previous electricity needs, which is substantially lower than the 30 to 40 cents per KWh that private consumers pay.

“We see that the Americans, for example, are spending $450 billion on the Inflation Reduction Act, and we see what China is doing in terms of economic policy,” Klingbeil said.

“If we find out in 10 years that we have let all the large industrial companies slip away because the investments are not being made here in Germany or Europe, and jobs and prosperity and growth are being lost here, then we will lose as a country,” he added.

However, not everyone in the German coalition favours subsidising electricity prices.

Finance Minister Christian Lindner of the liberal FDP (Renew), for example, has argued against such a step, instead promoting free-market principles and, amid rising household energy costs, reducing taxes on electricity for all.

“Privileging industrial companies would only be feasible at the expense of other electricity consumers and taxpayers, for example, private households or the small trade sector,” Lindner wrote in an op-ed for Handelsblatt on Tuesday.

“Increasing competitiveness for some would mean a loss of competitiveness for others,” he added.

Chancellor Olaf Scholz, himself a member of SPD, was more careful with his words, amid ongoing EU electricity reform debates in Brussels.

Asked about a subsidised electricity price for the industry at a town hall event on Monday, Scholz said he does not “want to make any promises now”.

“First of all, we have to make sure that we have cheap electricity in Germany in the first place,” Scholz said, promoting the expansion of renewable energy such as wind and solar, as local utilities cry for help, as well as more electricity grid infrastructure.

“What we will not be able to do as an economy, even as France’s new electricity pricing scheme advances, is to subsidise everything that takes place in normal economic activity,” Scholz said. “We should not get into the habit of doing that,” he added.

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Adani Electricity Mumbai Power Cuts follow non-payment rules, reflecting billing disputes, regulatory compliance, consumer impact, and affordability concerns, while prompting mitigation measures like flexible payment plans, assistance programs, and clearer communication for residents.

Key Points

AEML cutoffs for unpaid bills per rules, raising affordability worries, billing issues, and calls for flexible aid.

✅ Triggered by unpaid bills under regulatory guidelines

✅ Affordability and billing transparency concerns raised

✅ Mitigation: flexible plans, aid for low-income users

Adani Electricity Mumbai Limited (AEML) recently made headlines by cutting power supply to around 100 homes in Mumbai, sparking discussions about the reasons behind this action and its implications for consumers, especially as reports like the Northeast D.C. outage continue to surface.

Background of the Incident

The power supply disconnections by AEML were reportedly due to non-payment of electricity bills by the affected households. This action, although necessary under AEML's policies and in accordance with regulatory guidelines, has raised concerns about the impact on residents, particularly during challenging economic times when pandemic electricity shut-offs highlighted energy insecurity.

Reasons for Non-Payment

Non-payment of electricity bills can stem from various reasons, including financial hardships, disputes over billing accuracy, or unforeseen circumstances affecting household finances. In Mumbai, where the cost of living is high, utility bills constitute a significant portion of monthly expenses for many households, mirroring trends of rising electricity bills seen elsewhere.

Regulatory and Legal Framework

AEML's decision to disconnect power supply aligns with regulatory provisions governing utility services, which may include emergency disconnection moratoriums in other jurisdictions. Utility companies are mandated to enforce bill payments to maintain operational sustainability and ensure fair distribution of resources among consumers.

Consumer Impact and Response

The power disconnections have prompted reactions from affected residents and consumer advocacy groups, highlighting issues related to affordability, transparency in billing practices, and the need for supportive measures during times of economic distress amid heat-related electricity struggles that pressure vulnerable households.

Mitigation Measures

In response to such incidents, utility companies and regulatory authorities often implement mitigation measures. These may include flexible payment options, financial assistance programs for low-income households, and enhanced communication about billing procedures and payment deadlines, along with policy scrutiny such as utility spending oversight to curb unnecessary costs.

Future Considerations

As cities like Mumbai continue to grow and face challenges related to urbanization and infrastructure development, ensuring reliable and affordable access to essential services like electricity, including efforts to prevent summer power outages, remains a priority. Balancing the operational needs of utility providers with consumer welfare concerns requires ongoing dialogue and proactive measures from all stakeholders.

Conclusion

The power supply cuts by Adani Electricity in Mumbai underscore the complexities of managing utility services in urban centers. While necessary for financial viability and regulatory compliance, such actions also highlight broader issues of affordability and consumer protection. Moving forward, collaborative efforts between utility companies, regulatory authorities, and community stakeholders are essential in addressing these challenges and ensuring equitable access to essential services for all residents.

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Western Lithium Supply Localization is accelerating as EV battery makers diversify from China, boosting lithium hydroxide sourcing in North America and Europe, amid Covid-19 disruptions and rising prices, with geothermal brines and local processing.

Key Points

An industry shift to source lithium and processing near EV hubs, reducing China reliance and supply chain risk.

✅ EV makers seek North American and European lithium hydroxide

✅ Prices rise amid Covid-19 and logistics constraints

✅ New extraction: geothermal and oilfield brine projects

The global outbreak of coronavirus will accelerate efforts by western carmakers to localise supplies of lithium for electric car batteries, according to US producer Livent.

The industry was keen to diversify away from China, which produces the bulk of the world’s lithium, a critical material for lithium-ion batteries, said Paul Graves, Livent’s chief executive.

“It’s a conversation that’s starting to happen that was not happening even six months ago,” especially in the US, the former Goldman Sachs banker added.

China produced about 79 per cent of the lithium hydroxide used in electric car batteries last year, according to consultancy CRU, a supply chain that has been disrupted by the virus outbreak and EV shortages in some markets.

Prices for lithium hydroxide rose 3.1 per cent last month, their first increase since May 2018, according to Benchmark Mineral Intelligence, due to the impact of the Covid-19 bug.

Chinese lithium producer Ganfeng Lithium, which supplies major carmakers from Tesla to Volkswagen, said it had raised prices by less than 10 per cent, due to higher production costs and logistical difficulties.

“We can get lithium from lots of places . . . is that really something we’re prepared to rely upon?” Mr Graves said. “People are going to relook at supply chains, including battery recycling initiatives that enhance resilience, and relook at their integrity . . . and they’re going to say is there something we need to do to change our supply chains to make them more shockproof?”

General Motors last week said it was looking to source battery minerals such as lithium and nickel from North America for its new range of electric cars that will use cells made in Ohio by South Korea’s LG Chem.

“Some of these critical minerals could be challenging to obtain; it’s not just cobalt you need to be concerned about but also battery-grade nickel and lithium as well,” said Andy Oury, a lead engineer for batteries at GM. “We’re doing all of this with an eye to sourcing as much of the raw material from North America as possible.”

However, George Heppel, an analyst at CRU, warned it would be difficult to compete with China on costs. “China is always going to be the most competitive place to buy battery raw materials. That’s not likely to change anytime soon,” he said.

Livent, which extracts lithium from brines in northern Argentina, is looking at extracting the mineral from geothermal resources in the US and also wants to build a processing plant in Europe.

The Philadelphia-based company is also working with Canadian start-up E3 Metals to extract lithium from brines in Alberta's oil and gasfields for new projects in Canada.

“We’ll look at doing more in the US and more in Europe,” said Mr Graves, underscoring evolving Canada-U.S. collaboration across EV supply chains.

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FPL Rate Increase Proposal 2026-2029 outlines $9B base-rate hikes as Florida grows, citing residential demand, grid infrastructure investments, energy mix diversification, and Florida PSC review impacting customer bills, reliability, and fuel price volatility mitigation.

Key Points

A $9B base-rate plan FPL filed with the Florida PSC to fund growth, grid upgrades, and energy diversification through 2029.

✅ Adds 275k since 2021; +335k customers projected by 2029.

✅ Monthly bills rise to about $157 by 2029, up ~22% total.

✅ Investments in poles, wires, transformers, substations, renewables.

Florida Power & Light (FPL), the state's largest utility provider, has submitted a proposal to the Florida Public Service Commission (PSC) seeking a substantial increase in customer base rates over the next four years, amid ongoing scrutiny, including a recent hurricane surcharge controversy that heightened public attention.

Rationale Behind the Rate Increase

FPL's request is primarily influenced by Florida's robust population growth. Since 2021, the utility has added about 275,000 customers and projects an additional 335,000 by the end of 2029. This surge necessitates significant investments in transmission and distribution infrastructure, including poles, wires, transformers, and substations, to maintain reliable service. Moreover, FPL aims to diversify its energy mix to shield customers from fuel price volatility, even as the state declined federal solar incentives that could influence renewable adoption, ensuring a stable and sustainable power supply.

Impact on Customer Bills

If approved, the proposed rate increases would affect residential customers as follows:

• 2026: An estimated increase of $11.52 per month, raising the typical bill to $145.66.

• 2027: An additional $6.05 per month, bringing the bill to $151.71.

• 2028: A further increase of $3.64 per month, totaling $155.35.

• 2029: An extra $2.06 per month, resulting in a final bill of $157.41.

These adjustments represent a cumulative increase of approximately 22% over the four-year period, while in other regions some customers face sharper spikes, such as Pennsylvania's winter price increases this season.

Comparison with Previous Rate Hikes

This proposal follows a series of rate increases approved in recent years, as California electricity bills have soared and prompted calls for action in that state. For instance, Tampa Electric Co. (TECO) received approval for rate hikes totaling $287.9 million in 2025, with additional increases planned for 2026 and 2027. Consumer groups have expressed intentions to challenge these rate hikes, indicating a trend of growing scrutiny over utility rate adjustments.

Regulatory Review Process

The PSC is scheduled to review FPL's rate increase proposal in the coming months. A staff recommendation is expected by March 14, 2025, with a final decision anticipated at a commission conference on March 20, 2025. This process allows for public input and thorough evaluation of the proposed rate changes, while elsewhere some utilities anticipate stabilization, such as PG&E's 2025 outlook in California.

Customer and Consumer Advocacy Responses

The proposed rate hikes have elicited concerns from consumer advocacy groups. Organizations like Food & Water Watch have criticized the scale of the increase, labeling it as the largest rate hike request in U.S. history, amid mixed signals such as Gulf Power's one-time 40% bill decrease earlier this year. They argue that such substantial increases could place undue financial strain on households, especially those with fixed incomes.

Additionally, the Florida Public Service Commission has faced challenges in approving rate hikes for other utilities, such as TECO, and a recent Florida court decision on electricity monopolies that may influence the policy landscape, with consumer groups planning to appeal these decisions. This backdrop of heightened scrutiny suggests that FPL's proposal will undergo rigorous examination.

As Florida continues to experience rapid growth, balancing the need for infrastructure development and reliable energy services with the financial impact on consumers remains a critical challenge. The PSC's forthcoming decisions will play a pivotal role in shaping the state's energy landscape, influencing both the economy and the daily lives of Floridians.

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