Pennsylvania electric grid in need of a tuneup

By Post-Gazette Harrisburg Bureau


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Pennsylvania's electrical transmission grid is reliable but in need of some fine-tuning, and isn't immune to future blackouts like the one that darkened much of the Northeast last summer, according to testimony from the chairman of the state's Public Utility Commission.

There is no perfect electrical generation and delivery system, said PUC Chairman Terrance Fitzgerald, which is why "we need to do everything we reasonably can to prevent [blackouts]," despite the system's overall clean bill of health.

He offered his testimony recently at a Senate consumer protection hearing on blackout prevention and electric service reliability.

Though Pennsylvania's grid is by and large reliable, the PUC this year has opened separate investigations into the service quality offered by the Metropolitan Edison Co., Pennsylvania Power Co. and the Pennsylvania Electric Co., all of which are owned by Ohio-based FirstEnergy Corp., Fitzgerald said.

The ongoing probe will investigate the number and duration of power outages to determine whether FirstEnergy met the PUC's reliability standards.

In November, a joint U.S.-Canadian task force concluded that FirstEnergy was mostly to blame for the August blackout.

Public evidentiary hearings related to the PUC probe are still in progress.

The recent Senate hearing came just a week after the same joint task force released its second-phase recommendations for improving electricity transmission in North America. One of the recommendations calls for greater regional cooperation among electric companies, an area where Pennsylvania is ahead of the game, thanks to PJM Interconnection, a Valley Forge-based regional transmission group.

PJM brokers electricity transactions and runs power grids operating in Pennsylvania, New Jersey, West Virginia, Maryland and elsewhere.

Frank Koza, a manager with PJM, said it's his firm's responsibility to "balance supply second by second" and forecast daily demand.

"Regional planning is essential," Koza said.

Pennsylvania, especially the southwestern part of the state, also has a dense supply of high-voltage transmission lines, meaning the grid isn't as easily overloaded on hot, high-use days.

On the whole, he said, long-range investment into transmission infrastructure -- power lines, transformer substations, computer control centers -- is prudent, but a total overhaul on Pennsylvania's distribution grid is unnecessary.

Some disagree with the more rosy diagnosis, including Nora Mead Brownell, who sits on the Federal Energy Regulatory Commission and is a former PUC board member. She says since 1992, when a federal energy restructuring law was passed, there's been precious little investment in new transmission lines across the United States and in Pennsylvania.

Those lines may hold up for now, but "are not capable of supporting a digital economy over a long period of time," Brownell said.

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PG&E restoring power after intentional shut-offs affect 20,500 customers

PG&E power restoration continues across Butte and Yuba counties after PSPS shut-offs from high winds and dry weather, with crews patrolling overhead lines, repairing damage, and reopening community resource centers near Lake Berryessa.

 

Key Points

PG&E power restoration safely re-energizes lines after PSPS, using inspections and repairs to restore service.

✅ Crews patrolled 800 miles of overhead lines for hazards

✅ Repairs followed wind damage; gradual re-energization

✅ Resource centers offered water, outlets, air conditioning

 

Pacific Gas and Electric Co. field crews have begun restoring power to approximately 20,500 customers in Butte and Yuba counties after the utility shut off electricity to reduce wildfire risk because of gusty winds and dry weather conditions.

More than half of the affected customers had electricity again as of 1:47 p.m. Sunday, according to PG&E, and by 4 p.m. all of Yuba County power had been restored.

The utility also cut electricity for about 1,600 customers in parts of Napa, Solano and Yolo counties, primarily in the Lake Berryessa area, in a PSPS event separate from statewide grid conservation alerts that can trigger rolling blackouts. Power to those areas was switched off at 6:15 a.m. Saturday but was restored by the evening.

As the danger subsided Sunday, utility workers, as part of PG&E's local response planning for winter storms, worked throughout Butte and Yuba counties to re-energize power lines. The shut-offs affected areas including eastern Chico, Oroville and fire-ravaged Paradise.

Technicians checked lines for damage or fire hazards, like vegetation that could interfere with live wires, Pasion said, as part of broader pandemic grid preparedness that informed utility protocols.

PG&E “patrolled approximately 800 miles of overhead power lines,” the company said in a statement. “Crews found instances of damage to de-energized equipment caused by the extreme weather event and are making necessary repairs.”

While the shut-offs inconvenienced businesses and homeowners, they also highlighted energy inequality across impacted neighborhoods, and some called 911 with emergencies and confusion.

A half hour into the shut-off Saturday night, Butte County sheriff’s dispatchers received a call from a person requesting a welfare check on an individual whose care required electricity, according to department call logs. Two calls overnight from the Magalia area requested medical assistance because residents had oxygen concerns for medically sensitive spouses.

One woman requested an ambulance because her “husband was running out of oxygen,” according to the logs.

Around 4:11 a.m. Sunday, a resident of Hidden Valley Mobile Home Park in Oroville called about a tree falling into a trailer, causing a power line to fall, but noted that the electricity was off.

In a comparable storm-related outage, Sudbury Hydro crews worked to reconnect service after severe weather in Ontario.

And there were multiple calls asking for information about the shut-off, including one caller around midnight who was “demanding PG&E turn his power back on.”

The calls led the Butte County Sheriff’s Office to tweet a reminder Sunday afternoon that 911 is reserved for emergencies and requests for information about the power shutdown should be done through PG&E.

The utility opened a community resource center at Harrison Stadium in Oroville (Butte County) on Sunday morning to provide restrooms, bottled water, power outlets and air conditioning to residents. About 40 people showed up at the center in the first few hours, officials said.

“It’s a small but steady stream,” Pasion said.

Power was being restored to parts of Oroville as of 11 a.m. Sunday.

PG&E officials said it could take up to 48 hours for power to be restored in some areas.

For perspective, during severe storms in Ontario, Hydro One crews restored power to more than 277,000 customers within days.

 

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Let’s make post-COVID Canada a manufacturing hub again

Canada Manufacturing Policy prioritizes affordable energy, trims carbon taxes, aligns with Buy America, and supports the resource sector, PPE and plastics supply, nearshoring, and resilient supply chains amid COVID-19, correcting costly green energy policies.

 

Key Points

A policy to boost industry with affordable energy, lower carbon taxes, resource ties, and aligned U.S. trade.

✅ Cuts energy costs and carbon tax burdens for competitiveness

✅ Rebuilds resource-sector linkages and domestic supply chains

✅ Seeks Buy America relief and clarity on plastics regulation

 

By Jocelyn Bamford

Since its inception in 2017, the Coalition of Concerned Manufacturers and Businesses has warned all levels of government that there would be catastrophic effects if policies that drove both the manufacturing and natural resources sectors out of the country were adopted.

The very origins of our coalition was in the fight for a competitive landscape in Ontario, a cornerstone of which is affordable energy and sounding the alarm that the Green Energy Policy in Ontario pushed many manufacturers out of the province.


The Green Energy Policy made electricity in Ontario four times the average North American rate. These unjust prices were largely there to subsidize the construction of expensive and inefficient wind and solar energy infrastructure, even as cleaning up Canada's grid is cited as critical to meeting climate pledges.

My company’s November hydro bill was $55,000 and $36,500 of that was the so-called global adjustment charge, the name given to these green energy costs.

Unaffordable electricity, illustrated by higher Alberta power costs in recent years, coupled with ever-more burdensome carbon taxes, have pushed Canadian manufacturing into the open arms of other countries that see the importance of affordable energy to attract business.

One can’t help but ask the question: If Canada had policies that attracted and maintained a robust manufacturing sector, would we be in the same situation with a lack of personal protective equipment and medical supplies for our front-line medical workers and our patients during this pandemic?  If our manufacturing sector wasn’t crippled by taxes and regulation, would it be more nimble and able to respond to a national emergency?

It seems that the federal government’s policies are designed to push manufacturing out, stifle our resource sector, and kill the very plastics industry that is so essential to keeping our front-line medical staff, patients, and citizens safe, even as the net-zero race accelerates federally.

As the federal government chased its obsession with a new green economy – a strange obsession given our country’s small contribution to global GHGs – including proposals for a fully renewable grid by 2030 advocated by some leaders, it has been blinded from the real threats to our country, threats that became very, very real with COVID-19.

After the pandemic has passed, the federal government must work to make Canada manufacturing and resource friendly again, recognizing that the IEA net-zero electricity report projects the need for more power. COVID-19 proves that Canada relies on a robust resource economy and manufacturing sector to survive. We need to ensure that we are prepared for future crises like the one we are facing now.

Here are five things our government can do now to meet that end:

1. End all carbon taxes immediately.

2. Create a mandate to bring manufacturing back to Canada through competitive offerings and favourable tax regimes.

3. Recognize the interconnections between the resource sector and manufacturing, including how fossil-fuel workers support the transition across supply chains. Many manufacturers supply parts and pieces to the resource sector, and they rely on affordable energy to compete globally.

4. Stop the current federal government initiative to label plastic as toxic. At a time when the government is appealing to manufacturers to re-tool and produce needed plastic products for the health care sector, labelling plastics as toxic is counterproductive.

5. Work to secure a Canadian exemption to Buy America. This crisis has clearly shown us that dependency on China is dangerous. We must forge closer ties with America and work as a trading block in order to be more self-sufficient.

These are troubling times. Many businesses will not survive.

We need to take back our manufacturing sector.  We need to take back our resource sector.

We need to understand the interconnected nature of these two important segments of our gross domestic production, and opportunities like an Alberta–B.C. grid link to strengthen reliability.
If we do not, in the next pandemic we may find ourselves not only without ventilators, masks and gowns but also without energy to operate our hospitals.

Jocelyn Bamford is a Toronto business executive and President of the Coalition of Concerned Manufacturers and Businesses of Canada

 

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Net-Zero Emissions Might Not Be Possible Without Nuclear Power

Nuclear Power for Net-Zero Grids anchors reliable baseload, integrating renewables with grid stability as solar, wind, and battery storage scale. Advanced reactors complement hydropower, curb natural gas reliance, and accelerate deep decarbonization of electricity systems.

 

Key Points

Uses nuclear baseload and advanced reactors to stabilize power grids and integrate higher shares of variable renewables.

✅ Provides firm, zero-carbon baseload for renewable-heavy grids

✅ Reduces natural gas dependence and peaker emissions

✅ Advanced reactors enhance safety, flexibility, and cost

 

Declining solar, wind, and battery technology costs are helping to grow the share of renewables in the world’s power mix to the point that governments are pledging net-zero emission electricity generation in two to three decades to fight global warming.

Yet, electricity grids will continue to require stable baseload to incorporate growing shares of renewable energy sources and ensure lights are on even when the sun doesn’t shine, or the wind doesn’t blow. Until battery technology evolves enough—and costs fall far enough—to allow massive storage and deployment of net-zero electricity to the grid, the systems will continue to need power from sources other than solar and wind.

And these will be natural gas and nuclear power, regardless of concerns about emissions from the fossil fuel natural gas and potential disasters at nuclear power facilities such as the ones in Chernobyl or Fukushima.

As natural gas is increasingly considered as just another fossil fuel, nuclear power generation provides carbon-free electricity to the countries that have it, even as debates over nuclear power’s outlook continue worldwide, and could be the key to ensuring a stable power grid capable of taking in growing shares of solar and wind power generation.

The United States, where nuclear energy currently provides more than half of the carbon-free electricity, is supporting the development of advanced nuclear reactors as part of the clean energy strategy.

But Europe, which has set a goal to reach carbon neutrality by 2050, could find itself with growing emissions from the power sector in a decade, as many nuclear reactors are slated for decommissioning and questions remain over whether its aging reactors can bridge the gap. The gap left by lost nuclear power is most easily filled by natural gas-powered electricity generation—and this, if it happens, could undermine the net-zero goals of the European Union (EU) and the bloc’s ambition to be a world leader in the fight against climate change.

 

U.S. Power Grid Will Need Nuclear For Net-Zero Emissions

A 2020 report from the University of California, Berkeley, said that rapidly declining solar, wind, and storage prices make it entirely feasible for the U.S. to meet 90 percent of its power needs from zero-emission energy sources by 2035 with zero increases in customer costs from today’s levels.

Still, natural gas-fired generation will be needed for 10 percent of America’s power needs. According to the report, in 2035 it would be possible that “during normal periods of generation and demand, wind, solar, and batteries provide 70% of annual generation, while hydropower and nuclear provide 20%.” Even with an exponential rise in renewable power generation, the U.S. grid will need nuclear power and hydropower to be stable with such a large share of solar and wind.

The U.S. Backs Advanced Nuclear Reactor Technology

The U.S. Department of Energy is funding programs of private companies under DOE’s new Advanced Reactor Demonstration Program (ARDP) to showcase next-gen nuclear designs for U.S. deployment.

“Taking leadership in advanced technology is so important to the country’s future because nuclear energy plays such a key role in our clean energy strategy,” U.S. Secretary of Energy Dan Brouillette said at the end of December when DOE announced it was financially backing five teams to develop and demonstrate advanced nuclear reactors in the United States.

“All of these projects will put the U.S. on an accelerated timeline to domestically and globally deploy advanced nuclear reactors that will enhance safety and be affordable to construct and operate,” Secretary Brouillette said.

According to Washington DC-based Nuclear Energy Institute (NEI), a policy organization of the nuclear technologies industry, nuclear energy provides nearly 55 percent of America’s carbon-free electricity. That is more than 2.5 times the amount generated by hydropower, nearly 3 times the amount generated by wind, and more than 12 times the amount generated by solar. Nuclear energy can help the United States to get to the deep carbonization needed to hit climate goals.

 

Europe Could See Rising Emissions Without Nuclear Power

While the United States is doubling down on efforts to develop advanced and cheaper nuclear reactors, including microreactors and such with new types of technology, Europe could be headed to growing emissions from the electricity sector as nuclear power facilities are scheduled to be decommissioned over the next decade and Europe is losing nuclear power just when it really needs energy, according to a Reuters analysis from last month.

In many cases, it will be natural gas that will come to the rescue to power grids to ensure grid stability and enough capacity during peak demand because solar and wind generation is variable and dependent on the weather.

For example, Germany, the biggest economy in Europe, is boosting its renewables targets, but it is also phasing out nuclear by next year, amid a nuclear option debate over climate strategy, while its deadline to phase out coal-fired generation is 2038—more than a decade later compared to phase-out plans in the UK and Italy, for example, where the deadline is the mid-2020s.

The UK, which left the EU last year, included support for nuclear power generation as one of the ten pillars in ‘The Ten Point Plan for a Green Industrial Revolution’ unveiled in November.

The UK’s National Grid has issued several warnings about tight supply since the fall of 2020, due to low renewable output amid high demand.

“National Grid’s announcement underscores the urgency of investing in new nuclear capacity, to secure reliable, always-on, emissions-free power, alongside other zero-carbon sources. Otherwise, we will continue to burn gas and coal as a fallback and fall short of our net zero ambitions,” Tom Greatrex, Chief Executive of the Nuclear Industry Association, said in response to one of those warnings.

But it’s in the UK that one major nuclear power plant project has notoriously seen a delay of nearly a decade—Hinkley Point C, originally planned in 2007 to help UK households to “cook their 2017 Christmas turkeys”, is now set for start-up in the middle of the 2020s.

Nuclear power development and plant construction is expensive, but it could save the plans for low-carbon emission power generation in many developed economies, including in the United States.

 

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Hydro One Q2 profit plunges 23% as electricity revenue falls, costs rise

Hydro One Q2 Earnings show lower net income and EPS as mild weather curbed electricity demand; revenue missed Refinitiv estimates, while tree-trimming costs rose and the dividend remained unchanged for Ontario's grid operator.

 

Key Points

Hydro One Q2 earnings fell to $155M, EPS $0.26, revenue $1.41B; costs rose, demand eased, dividend held at $0.2415.

✅ Net income $155M; EPS $0.26 vs $0.34 prior year

✅ Revenue $1.41B; missed $1.44B estimate

✅ Dividend steady at $0.2415 per share

 

Hydro One Ltd.'s (H.TO 0.25%) second-quarter profit fell by nearly 23 per cent from last year to $155 million as the electricity utility reported spending more on tree-trimming work due to milder temperatures that also saw customers using less power, notwithstanding other periods where a one-time court ruling gain shaped quarterly results.

The Toronto-based company - which operates most of Ontario's power grid - and whose regulated rates are subject to an OEB decision, says its net earnings attributable to shareholders dropped to 26 cents per share from 34 cents per share when Hydro One had $200 million in net income.

Adjusted net income was also 26 cents per share, down from 33 cents per diluted share in the second quarter of 2018, while executive pay, including the CEO salary, drew public scrutiny during the period.

Revenue was $1.41 billion, down from $1.48 billion, while revenue net of purchased power was $760 million, down from $803 million, and across the sector, Manitoba Hydro's debt has surged as well.

Separately, Ontario introduced a subsidized hydro plan and tax breaks to support economic recovery from COVID-19, which could influence consumption patterns.

Analysts had estimated $1.44 billion of revenue and 27 cents per share of adjusted income, and some investors cite too many unknowns in evaluating the stock, according to financial markets data firm Refinitiv.

The publicly traded company, which saw a share-price drop after leadership changes and of which the Ontario government is the largest shareholder, says its quarterly dividend will remain at 24.15 cents per share for its next payment to shareholders in September.

 

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Chinese-built electricity poles plant inaugurated in South Sudan

Juba Power Distribution Expansion accelerates grid rehabilitation in South Sudan, adding concrete poles, medium and low voltage networks, and LED street lighting, funded by AfDB and executed by Power China for reliable, affordable electricity.

 

Key Points

A project to upgrade Juba's grid with concrete poles, MV-LV networks, and LED lighting for reliable, affordable power.

✅ 13,350 concrete poles produced locally for network rollout

✅ Medium and low voltage network rehabilitation and expansion

✅ LED street lighting and customer care improvements funded by AfDB

 

The South Sudan government has launched a factory producing concrete poles that will facilitate an ambitious project done by a Chinese company to rehabilitate and expand the Power Distribution System in Juba, its capital.

The Minister of Dams and Electricity, Dhieu Mathok, said that the factory, rented by Power China, will produce some 13,350 poles for the electricity distribution in the capital and other states.

"The main objective of this project is to increase the supply capacity and reliability of the power distribution system in Juba. Access to the grid will replace the use of generators by the population, allow supply of energy at more affordable price and, hence contribute toward economic growth and poverty eradication in South Sudan," Mathok said during the inauguration of the plant along the Yei road in Juba.

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He disclosed that it will help solve the problem associated with non-availability of concrete poles for the project and to mitigate the risk of importing poles from other countries.

"This factory will create positive impact on the construction of the national grid in South Sudan. It is owned by South Sudanese business people but currently it has been taken over by Power China for a brief period of one year," he said.

South Sudan is largely generator driven economy with continued electricity blackout, and across the continent initiatives like Cape Town's municipal power build-out illustrate alternative approaches, in the wake of the collapse of the generator power plant operated by the South Sudan Electricity Corporation (SSEC) in 2013.

Wang Cun, an official with Power China said they got the contract to build the electricity project in June 2016 and that they will continue to support South Sudanese staff with skills and knowledge, drawing on advances such as PEM green hydrogen R&D that point to future low-carbon options, and also work with the government on several major power projects.

"We have achieved much from these projects and we also suffered much from the instability and continuous conflicts all these years, but we confirm and believe the year of 2018 will be a year of peace and development in South Sudan," Wang said, adding that the company has been operating in South Sudan since 2009.

He disclosed that Power China has conducted several projects before South Sudan won independence from Sudan in 2011 such as the peace road project from Renk to Malakal, Maridi water plant and Malakal municipal road projects.

Wang said they will immediately reorganize all necessary resources to increase post-production capacity and immediately shall commence the erection of these poles to all corners of Juba city and start the distribution.

"We shall do as we did before to recruit more local technicians, engineers and laborers during the construction period, so that they are there in place for similar projects in the near future. We shall make more efforts to improve these local staffs' working environment and to realize sustainable development of Power China and Sino-hydro in South Sudan," said Wang.

Power China has been committing itself in the economic development of South Sudan and has signed eight commercial contracts with the government of South Sudan since independence like the Juba-hydro power project and the Tharjiath thermal power plant project, while in China projects such as the Lawa hydropower station demonstrate ongoing hydropower expertise that can inform regional work.

Liu Xiaodong, the Charge d'Affaires at the Chinese embassy in South Sudan, said Power China has been working very hard in the engineering and procurement in the earlier stage of the project, and as China expands energy ties such as nuclear cooperation with Cambodia that demonstrate broader engagement, also thanked the South Sudan government and the African Development Bank for their strong support.

Liu added upon completion Juba will have an upgraded power distribution system with 2,250 lighting points along the main roads in the capital and lamps will be LED ones.

The project falls under the Juba Power Distribution System Rehabilitation and Expansion Project, which was funded by the African Development Bank (AfDB) and has undertaken an AfDB review of a Senegal power plant to inform regional energy decisions.

It comprises of five different lots like Rehabilitation of Diesel plant substation, Rehabilitation and Expansion of medium voltage network, low voltage network, and Rehabilitation and Expansion of street lighting and improvement of customer care.

 

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Europe Stores Electricity in Natural Gas Pipes

Power-to-gas converts surplus renewable electricity into green hydrogen or synthetic methane via electrolysis and methanation, enabling seasonal energy storage, grid balancing, hydrogen injection into gas pipelines, and decarbonization of heat, transport, and industry.

 

Key Points

Power-to-gas turns excess renewable power into hydrogen or methane for storage, grid support, and clean fuel.

✅ Enables hydrogen injection into existing natural gas networks

✅ Balances grids and provides seasonal energy storage capacity

✅ Supplies low-carbon fuels for industry, heat, and heavy transport

 

Last month Denmark’s biggest energy firm, Ørsted, said wind farms it is proposing for the North Sea will convert some of their excess power into gas. Electricity flowing in from offshore will feed on-shore electrolysis plants that split water to produce clean-burning hydrogen, with oxygen as a by-product. That would supply a new set of customers who need energy, but not as electricity. And it would take some strain off of Europe’s power grid as it grapples with an ever-increasing share of hard-to-handle EU wind and solar output on the grid.

Turning clean electricity into energetic gases such as hydrogen or methane is an old idea that is making a comeback as renewable power generation surges and crowds out gas in Europe. That is because gases can be stockpiled within the natural gas distribution system to cover times of weak winds and sunlight. They can also provide concentrated energy to replace fossil fuels for vehicles and industries. Although many U.S. energy experts argue that this “power-to-gas” vision may be prohibitively expensive, some of Europe’s biggest industrial firms are buying in to the idea.

European power equipment manufacturers, anticipating a wave of renewable hydrogen projects such as Ørsted’s, vowed in January that, as countries push for hydrogen-ready power plants across Europe, all of their gas-fired turbines will be certified by next year to run on up to 20 percent hydrogen, which burns faster than methane-rich natural gas. The natural gas distributors, meanwhile, have said they will use hydrogen to help them fully de-carbonize Europe’s gas supplies by 2050.

Converting power to gas is picking up steam in Europe because the region has more consistent and aggressive climate policies and evolving electricity pricing frameworks that support integration. Most U.S. states have goals to clean up some fraction of their electricity supply; coal- and gas-fired plants contribute a little more than a quarter of U.S. greenhouse gas emissions. In contrast, European countries are counting on carbon reductions of 80 percent or more by midcentury—reductions that will require an economywide switch to low-carbon energy.

Cleaning up energy by stripping the carbon out of fossil fuels is costly. So is building massive new grid infrastructure, including transmission lines and huge batteries, amid persistent grid expansion woes in parts of Europe. Power-to-gas may be the cheapest way forward, complementing Germany’s net-zero roadmap to cut electricity costs by a third. “In order to reach the targets for climate protection, we need even more renewable energy. Green hydrogen is perceived as one of the most promising ways to make the energy transition happen,” says Armin Schnettler, head of energy and electronics research at Munich-based electric equipment giant Siemens.

Europe already has more than 45 demonstration projects to improve power-to-gas technologies and their integration with power grids and gas networks. The principal focus has been to make the electrolyzers that convert electricity to hydrogen more efficient, longer-lasting and cheaper to produce.

The projects are also scaling up the various technologies. Early installations converted a few hundred kilowatts of electricity, but manufacturers such as Siemens are now building equipment that can convert 10 megawatts, which would yield enough hydrogen each year to heat around 3,000 homes or fuel 100 buses, according to financial consultancy Ernst & Young.

The improvements have been most dramatic for proton-exchange membrane electrolyzers, which are akin to the fuel cells used in hydrogen vehicles (but optimized to produce hydrogen rather than consume it). The price of proton-exchange electrolyzers has dropped by roughly 40 percent during the past decade, according to a study published in February in Nature Energy. They are also five times more compact than older alkaline electrolysis plants, enabling onsite hydrogen production near gas consumers, and they can vary their power consumption within seconds to operate on fluctuating wind and solar generation.

Many European pilot projects are demonstrating “methanation” equipment that converts hydrogen to methane, too, which can be used as a drop-in replacement for natural gas. Europe’s electrolyzer plants, however, are showing that methanation is not as critical to the power-to-gas vision as advocates long believed. Many electrolyzers are injecting their hydrogen directly into natural gas pipelines—something that U.S. gas firms forbid—and they are doing so without impacting either the gas infrastructure or natural gas consumers.

Europe’s first large-scale hydrogen injection began in eastern Germany in 2013 at a two-megawatt electrolyzer installed by Essen-based power firm E.ON. Germany has since ratcheted up the amount of hydrogen it allows in natural gas lines from an initial 2 percent by volume to 10 percent, in a market where renewables now outpace coal and nuclear in Germany, and other European states have followed suit with their own hydrogen allowances. Christopher Hebling, head of hydrogen technologies at the Freiburg-based Fraunhofer Institute for Solar Energy Systems, predicts that such limits will rise to the 20-percent level anticipated by Europe’s turbine manufacturers.

Moving renewable hydrogen and methane via natural gas pipelines promises to cut the cost of switching to renewable energy. For example, gas networks have storage caverns whose reserves could be tapped to run gas-fired electric generation power plants during periods of low wind and solar output. Hebling notes that Germany’s gas network can store 240 terawatt-hours of energy—roughly 25 times more energy than global power grids can presently store by pumping water uphill to refill hydropower reservoirs. Repurposing gas infrastructure to help the power system could save European consumers 138 billion euros ($156 billion) by 2050, according to Dutch energy consultancy Navigant (formerly Ecofys).

For all the pilot plants and promise, renewable hydrogen presently supplies a tiny fraction of Europe’s gas. And, globally, around 4 percent of hydrogen is supplied via electrolysis, with the bulk refined from fossil fuels, according to the International Renewable Energy Agency.

Power-to-gas is catching up, however. According to the February Nature Energy study, renewable hydrogen already pays for itself in some niche applications, and further electrolyzer improvements will progressively extend its market. “If costs continue to decline as they have done in recent years, power-to-gas will become competitive at large scale within the next decade,” says study co-author Gunther Glenk, an economist at the Technical University of Munich.

Glenk says power-to-gas could scale up faster if governments guaranteed premium prices for renewable hydrogen and methane, as they did to mainstream solar and wind power.

Tim Calver, an energy storage researcher turned consultant and Ernst & Young’s executive director in London, agrees that European governments need to step up their support for power-to-gas projects and markets. Calver calls the scale of funding to date, “not proportionate to the challenge that we face on long-term decarbonization and the potential role of hydrogen.”

 

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