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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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Ontario Electricity Capacity Gap threatens reliability as IESO forecasts shortfalls from the Pickering shutdown and rapid electrification, requiring new low-emission nuclear generation to meet net-zero targets, maintain baseload, and stabilize the grid.

Key Points

Expected 2030 shortfalls from Pickering closure and electrification, requiring new low-emission nuclear to meet net-zero.

✅ IESO projects a 3.6-9.5 GW capacity gap by 2030

✅ Pickering shutdown removes baseload, stressing reliability

✅ New low-emission nuclear needed to meet net-zero targets

Ontario faces an electricity supply shortage and reliability risks in the next four to eight years and will not meet net-zero objectives without building new low-emission, nuclear generation starting as soon as possible, according to a report released yesterday by the Power Workers' Union (PWU). The capacity needed to fill the expected supply gap will be equivalent to doubling the province's planned nuclear fleet in eight years.

The planned closure of the Pickering nuclear power plant in 2025 and the increase in demand from electrification of the economy are the drivers behind a capacity gap in 2030 of at least 3.6 GW which could widen to as much as 9.5 GW, Electrification Pathways for Ontario to Reduce Emissions, finds. Ontario's Independent Electricity System Operator (IESO) has since 2013 been forecasting a significant gap in the province's electricity supply due the closure of Pickering, but has been underestimating the impact of electrification, the report says.

In addition, the electrification of buildings, transport and industry sectors that will be needed to achieve goals of net-zero emissions by 2050 that being set by the federal government and civil society will see the province's electricity demand increase by at least 130% over current planning forecasts, and potentially by over 190%. Leveraging electricity, natural gas and hydrogen synergies can reduce supply needs, but 55 GW of new electricity capacity, including new large-scale nuclear plants, will still be needed by 2050 - four times Ontario's current nuclear and hydro assets - the report finds.

These findings underscore the urgent need for a paradigm shift in Ontario's electricity planning and procurement process, the authors say, adding that immediate action is needed both to mitigate the system reliability risks and enable the significant societal benefits needed to pursue net-zero objectives. Planning for procurement to replace Pickering's capacity, or to pursue life extension options, must begin as soon as possible.

"Policymakers around the world realise climate change can't be tackled without nuclear. Ontario's nuclear fleet has delivered emissions reductions for over 50 years," PWU President Jeff Parnell said. "In fact, without building new nuclear units, Ontario will miss its emission reduction targets and carbon emissions from electricity generation will rise dramatically, as explored in why Ontario's power could get dirtier today."

"This report clearly shows that Ontario cannot sustain the low-carbon status of its hydro and nuclear-based electricity system, decarbonise its economy and meet its carbon reduction targets without new nuclear or continued operation at Pickering in the near term. Most disturbing is the fact that we are already well behind and needed to start planning for this capacity yesterday," he said.

The six operating Candu reactors at Ontario Power Generation's Pickering plant have been kept in operation to provide baseload electricity during the refurbishment of units at the Darlington and Bruce plants. Currently, the company plans to shut down Pickering units 1 and 4 in 2024 and units 5 to 8 in 2025, even as Ontario moves to refurbish Pickering B to extend life.

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Pennsylvania Electricity Market Deregulation has driven competitive pricing, leveraged low-cost natural gas, and spurred private investment, jobs, and efficient power plants, while nuclear subsidies threaten wholesale market signals and long-term consumer savings.

Key Points

Policy that opens generation to competition, leverages cheap gas, lowers rates, and resists subsidies for nuclear plants.

✅ Competitive wholesale pricing benefits consumers statewide

✅ Gas-driven plants add efficient, flexible capacity and jobs

✅ Nuclear subsidies distort market signals and raise costs

For decades, the government regulation of Pennsylvania's electricity markets dictated all aspects of power generation resources in the state, thus restricting market-driven prices for consumers and hindering new power plant development and investment.

Deregulation has enabled competitive markets to drive energy prices downward, as recent grid auction payouts fell 64% indicate, which has transformed Pennsylvania from a higher-electricity-cost state to one with prices below the national average.

Recently, the economic advantage of abundant low-cost natural gas has spurred an influx of billions of dollars of private capital investment and thousands of jobs to construct environmentally responsible natural gas power generation facilities throughout the commonwealth — including our three power generation facilities in operation and one presently under construction.

Calpine is an independent power provider with a national portfolio of 80 highly efficient power plants in operation or under construction with an electric generating capacity of approximately 26,000 megawatts. Collectively, these resources can provide sufficient power for more than 30 million residential homes. We are not a regulated utility receiving a guaranteed rate of return on investment. Rather, Calpine competes to sell wholesale power into the electric markets, and the economics of supply and demand are fundamental to the success of our business.

Pennsylvania's deregulated electricity market is working. Consumers are benefiting from low-cost natural gas, as broader evidence shows competition benefits consumers and the environment across markets, and companies such as Calpine are investing billions of dollars and creating thousands of jobs to build advanced, energy efficient, environmentally responsible and flexible power generating facilities.

There are presently seven electric generating projects under construction in the commonwealth, representing about a $7 billion capital investment that will produce about 7,000 megawatts of efficient electrical power, with additional facilities being planned.

Looking back 20 years following the enactment of the Pennsylvania Electricity Generation Customer Choice and Competition Act, Pennsylvania's regulators and policymakers must conclude that the results of a free and fair market-driven structure have delivered indisputable benefits to the consumer, even amid potential winter rate spikes for residents, and the Pennsylvania economy.

While consumers are now reaping the benefits of open and competitive electricity markets, we see challenges on the horizon that could threaten the foundation of those markets. Due to pressure from nuclear power generators, state policymakers throughout the nation have been increasing efforts to impact the generation mix in their respective states by offering ratepayer funded subsidies to existing nuclear generation resources or by considering a market structure overhaul in New England.

Subsidizing one power generation type over others is having a significant, negative impact on wholesale electric markets, competitive retails markets and ultimately the cost the consumer will have to pay, and can exacerbate disruptions in coal and nuclear industries that strain the economy and risk brownouts.

In Pennsylvania, these subsidies would follow nearly $9 billion already paid by ratepayers to help the commonwealth's nuclear industry transition from regulated to competitive energy markets.

The deregulation of Pennsylvania's electricity markets in the late 1990s allowed the nuclear industry to receive billions of dollars from ratepayers to recover "stranded costs" related to investments in the commonwealth's nuclear plants. These costs were negotiated amounts based on settlements with Pennsylvania's Public Utility Commission to allow the nuclear industry to prepare and transition to competitive electricity markets.

Enough is enough. Regulatory or governmental interference in well functioning markets does not lead to better outcomes. Pennsylvania's state Legislature should not pick winners and losers by enacting legislation that would create an uneven playing field that subsidizes nuclear generating resources in the commonwealth.

William Ferguson is regional vice president for Calpine Corp.

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Germany renewable energy milestone 2019 saw wind, solar, hydropower, and biomass outproduce coal and nuclear, as low gas prices and high CO2 costs under the EU ETS reshaped the electricity mix, per Fraunhofer ISE.

Key Points

It marks H1 2019 when renewables supplied 47.3% of Germany's electricity, surpassing coal and nuclear.

✅ Driven by high CO2 prices and cheap natural gas

✅ Wind and solar output rose; coal generation declined sharply

✅ Flexible gas plants outcompeted inflexible coal units

In Lippendorf, Saxony, the energy supplier EnBW is temporarily taking part of a coal-fired power plant offline. Not because someone ordered it — it simply wasn't paying off. Gas prices are low, CO2 prices are high, and with many hours of sunshine and wind, renewable methods are producing a great deal of electricity as part of Germany's energy transition now reshaping operations. And in the first half of the year there was plenty of sun and wind.

The result was a six-month period in which renewable energy sources, a trend echoed by the EU wind and solar record across the bloc, produced more electricity than coal and nuclear power plants together. For the first time 47.3% of the electricity consumers used came from renewable sources, while 43.4% came from coal-fired and nuclear power plants.

In addition to solar and wind power, renewable sources also include hydropower and biomass. Gas supplied 9.3%, reflecting how renewables are crowding out gas across European power markets, while the remaining 0.4% came from other sources, such as oil, according to figures published by the Fraunhofer Institute for Solar Energy Systems in July.

Fabian Hein from the think tank Agora Energiewende stresses that the situation is only a snapshot in time, with grid expansion woes still shaping outcomes. For example, the first half of 2019 was particularly windy and wind power production rose by around 20% compared to the first half of 2018.

Electricity production from solar panels rose by 6%, natural gas by 10%, while the share of nuclear power in German electricity consumption has remained virtually unchanged despite a nuclear option debate in climate policy.

Coal, on the other hand, declined. Black coal energy production fell by 30% compared to the first half of 2018, lignite fell by 20%. Some coal-fired power plants were even taken off the grid, even as coal still provides about a third of Germany's electricity. It is difficult to say whether this was an effect of the current market situation or whether this is simply part of long-term planning, says Hein.

Activists storm German mine in anti-coal protest

It is clear, however, that an increased CO2 price has made the ongoing generation of electricity from coal more expensive. Gas-fired power plants also emit CO2, but less than coal-fired power plants. They are also more efficient and that's why gas-fired power plants are not so strongly affected by the CO2 price

The price is determined at a European level and covers power plants and energy intensive industries in Europe. Other areas, such as heating or transport are not covered by the CO2 price scheme. Since a reform of CO2 emissions trading in 2017, the price has risen sharply. Whereas in September 2016 it was just over €5 ($5.6), by the end of June 2019 it had climbed to over €26.

Ups and downs

Gas as a raw material is generally more expensive than coal. But coal-fired power plants are more expensive to build. This is why operators want to run them continuously. In times of high demand, and therefore high prices, gas-fired power plants are generally started up, as seen when European power demand hit records during recent heatwaves, since it is worth it at these times.

Gas-fired power plants can be flexibly ramped up and down. Coal-fired power plants take 11 hours or longer to get going. That's why they can't be switched on quickly for short periods when prices are high, like gas-fired power plants. In the first half of the year, however, coal-fired power plants were also ramped up and down more often because it was not always worthwhile to let the power plant run around the clock.

Because gas prices were particularly low in the first half of 2019, some gas-fired power plants were more profitable than coal-fired plants. On June 29, 2019, the gas price at the Dutch trading point TTF was around €10 per megawatt hour. A year earlier, it had been almost €20. This is partly due to the relatively mild winter, as there is still a lot of gas in reserve, confirmed a spokesman for the Federal Association of the Energy and Water Industries (BDEW). There are also several new export terminals for liquefied natural gas. Additionally, weaker growth and trade wars are slowing demand for gas. A lot of gas comes to Europe, where prices are still comparatively high, reported the Handelsblatt newspaper.

The increase in wind and solar power and the decline in nuclear power have also reduced CO2 emissions. In the first half of 2019, electricity generation emitted around 15% less CO2 than in the same period last year, reported BDEW. However, the association demands that the further expansion of renewable energies should not be hampered. The target of 65% renewable energy can only be achieved if the further expansion of renewable energy sources is accelerated.

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Ford Oakville EV investment secures government funding, Unifor deal, and plant retooling, channeling $500 million plus $1.98 billion for Canadian electric vehicle manufacturing, Windsor engine contracts, and 2025 production, strengthening Ontario's auto industry.

Key Points

Government and Ford will retool Oakville for EVs, creating jobs under a Unifor deal and Windsor engine work.

✅ $500M government funding for plant retooling

✅ Ford commits $1.98B; five new EVs by 2025

✅ Unifor deal adds Windsor engine work, jobs

The federal government and Ontario have pledged to spend up to $500 million to make the Ford plant in Oakville, Ont., able to build electric vehicles, aligning with efforts to capitalize on the U.S. EV pivot underway.

The future of the plant has been a key question for Canada's automotive industry, as moves like GM's Ontario EV deal point to broader changes, ever since the Unifor union started negotiating with the automaker for a new three-year pact to cover the company's Canadian workforce.

The two sides struck a deal a few hours after a midnight strike deadline on Tuesday morning, one that will see the company commit $1.98 billion to build five new electric vehicles and an engine contract that could yield new EV jobs in Windsor, Ont.

Ford has previously committed to spending $11 billion US to develop and manufacture electric vehicles, but so far all of that money was earmarked for Ford plants in Mexico and the company's home state of Michigan.

"With Oakville gaining such a substantial portion of Ford's planned investment, the assembly plant and its workers are better set for employment going forward," said Sam Fiorani, vice-president of global forecasting at AutoForecast Solutions.

Unifor's 'unique' Ford deal includes 5 new electric vehicles in Oakville, engine for Windsor plants
Currently, the plant builds the Ford Edge and Lincoln Nautilus, but concerns over the plant's future emerged earlier this year when a report suggested Ford was contemplating scrapping the Edge altogether. The new vehicles will come as welcome news for the plant, even as Fiorani says he worries that demand for the electric vehicles (EV) has so far not lived up to the hype.

"The EV market is coming, and Ford looks to be preparing for it. However, the demand is just not growing in line with the proposed investment from all vehicle manufacturers," he said.

Plant needs upgrade first
And the plant can't simply flip a switch and start building an entirely new type of vehicle. It will require a major retooling, and that will require time — and cash — to happen, which is where government cash comes in, as seen with a Niagara Region battery plant supporting the EV supply chain.

As first reported by the Toronto Star, the two branches of government have committed to spent up to $500 million combined to upgrade the plant so that it can build electric vehicles.

"The retooling will begin in 2024 with vehicles rolling off the line in 2025," Unifor president Jerry Dias said. "So we know this is a decades-long commitment."

It's not clear what portion of the cash will come from what branch of government, but CBC News has previously reported that Wednesday's throne speech is expected to contain a number of policies aimed at beefing up Canada's electric vehicle industry, as EV assembly deals are putting Canada in the race, both on the consumer side and for businesses that build them.

Ontario's minister of economic development and trade welcomed the news of a tentative deal on Tuesday and confirmed that Queen's Park legislators stand ready to do their part, as shown by Honda's Ontario battery investment moves in the province.

"Our government will always work with our federal colleagues, workers and the auto sector to ensure the right conditions are in place for the industry to remain stable today and seize the new opportunities of tomorrow," a spokesperson for Vic Fedeli told CBC News in an emailed statement Tuesday.

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COVID-19 Impact on U.S. Power Demand shows falling electricity load, lower wholesale prices, and resilient utilities in competitive markets, with regional differences tied to weather, renewable energy, stay-at-home orders, and hedging strategies.

Key Points

It outlines reduced load and prices, while regulatory design and hedging support utility stability across regions.

✅ Load down in NY, New England, PJM; weather drives South up.

✅ Wholesale prices fall 8-10% in key markets.

✅ Decoupling, contracts, hedging support utility earnings.

On March 27, Bloomberg New Energy Finance (BNEF) released a report on electricity demand and wholesale market prices impact from COVID-19 fallout. The model compares expected load based largely on weather with actual observed electricity demand changes.

So far, the hardest hit power grid is New York, with load down 7 and prices off by 10 percent. That’s expected, given New York City is the current epicenter of the US health crisis.

Next is New England, with 5 percent lower demand and 8 percent reduced wholesale prices for the week from March 19-25. BNEF says the numbers could go higher following advisories and orders issued March 24 for some 70 percent of the region’s population to stay at home.

Demand on the biggest grid in the US, the PJM (Pennsylvania/Jersey/Maryland), is 4 percent lower, with prices dropping 8 percent, as recent capacity auction payouts fell sharply. BNEF believes there will be more impact as stay at home orders are ramped up in several states.

California’s power demand for March 19-25 was 5 percent below what BNEF’s model expects without COVID-19 impact. That reflects a full week of stay-at-home orders from Governor Newsom issued March 19.

Health officials in Los Angeles and elsewhere expect a spike in COVID-19 cases in coming weeks. But BNEF’s model now actually projects rising electricity load for the state, due to what it calls "freakishly mild weather a year ago."

Rounding out the report, power demand is up for a band of southern states stretching from Florida to the desert Southwest, with weather more than offsetting public response to COVID-19 so far. BNEF says the Northwest’s grid "has not yet been highly impacted," while the Southeast is "generally in line" with pre-virus expectations.

Clearly, all of this data can change quickly and radically. Only California and New York are currently in full shutdown mode. Following them are New England (70 percent), the Midwest (65 percent), Texas (50 percent), PJM (50 percent) and the Northwest (50 percent).

In contrast, only small parts of Florida, the Southeast and Southwest are restricting movement. That could mean a big future increase for shut-ins, with heightened risks of electricity shut-offs that burden households and a corresponding impact on power demand.

Also, weather will play a major role on what happens to actual electricity demand, just as it always does. A very hot summer, for example, could offset virus-related shut-ins, just as it apparently is now in states like Texas. And it should be pointed out that regions vary widely by exposure to recession-sensitive sources of demand, such as heavy industry.

Most important for investors, however, is the built in protection US utility earnings enjoy from declining power demand, even amid broader energy crisis pressures facing the sector. For one thing, US power grids in California, ERCOT (Texas), MISO (Midwest), New England, New York and PJM have wholesale power markets, where producers compete for sales and the lowest bidder sets the price.

In those states, most regulated utilities don’t produce power at all. In fact, companies’ revenue is decoupled entirely from demand in California, as well as much of New England. In the roughly three-dozen states where utilities still operate as integrated monopolies, demand does affect revenue, and in many regions flat electricity demand already persists. But the cost of electricity is passed through directly to customers, whether produced or purchased.

A number of US electric companies have invested in renewable energy facilities as part of broader electrification trends nationwide. These sell their output under long-term contracts primarily with other utilities and government entities.

This isn’t a risk free business: For the past year, generators selling electricity to bankrupt PG&E Corp (PCG) have had their cash trapped at the power plant level as surety for lenders. But even PG&E has honored its contracts. And with states continuing aggressive mandates for renewable energy adoption, growth doesn’t appear at risk to COVID-19 fallout either.

The wholesale price of power from natural gas, coal and many nuclear plants was already sliding before COVID-19, due to renewables adoption and low natural gas prices, even as coal and nuclear disruptions raise reliability concerns. But here too, big producers like Exelon Corp (EXC) and Vistra Energy (VST) have employed aggressive price hedging near term, with regulated utilities and retail businesses protecting long-term health, respectively.

Bottom line: It’s early days for the COVID-19 crisis and much can still change. But so far at least, the US power industry is absorbing the blow of reduced demand, just as it’s done in previous crises.

That means future selloffs in the ongoing bear market are buying opportunities for best in class electric utilities, not a reason to sell. For top candidates, see the Conrad’s Utility Investor Portfolios and Dream Buy List in the March issue. 

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