German emissions rise with nuclear u-turn

By Reuters


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Germany's nuclear policy U-turn leaves it little choice other than to rely more heavily on coal power, and that could boost its annual carbon emissions by as much as 10 percent.

Following last month's nuclear reactor accident in Japan and an election defeat against the anti-nuclear Green Party, German Chancellor Angela Merkel announced a nuclear policy moratorium.

The move included an order to shut the country's seven oldest plants until June for extra safety checks.

Many analysts believe the closures may become permanent.

The loss of some 7,000 megawatt MW in nuclear power capacity prompted utilities to resort largely to coal power, and this could boost Germany's annual carbon emissions by 45 million metric tons, or around 10 percent, analysts have estimated.

"Replacing all of the 7,000 MW of nuclear capacity with coal-fired power could lead to an increase in German emissions of roughly 60 million tons a year," said Alessandro Vitelli, director of carbon consultancy IDEAcarbon in London.

Traders said utilities had replaced around 75 percent of the nuclear generation gap with coal, spelling an annual rise of 45 million metric tons.

This would put the surplus in German emissions until the end of June at 11.25 million metric tons.

German emissions from installations covered by the European Union's emissions trading scheme ETS stood at 453.88 million metric tons in 2010, up six percent on the year.

"Our initial estimate of the impact of the nuclear reactors shutting was an additional 5 million tons of coal needed for Germany as a whole but now we think it's likely to be 3-4 million," a trader with a major German utility said.

Deutsche Bank reckons that if the seven oldest reactors were permanently shut down immediately and the 10 others allowed to continue generating under terms of revised legislation passed in 2010, then Germany's surplus demand for carbon allowances under the ETS between 2011 and 2020 would be 250 million tons.

The drive toward coal power generation is being helped by Germany's power mix structure and market fundamentals.

Germany does not have an import terminal for liquefied natural gas LNG and a relatively small gas power generation capacity of around 14 percent of the country's generation mix. It simply cannot fill the nuclear gap with the cleaner gas option.

And Germany is unlikely to build an LNG terminal in the near future as its two biggest utilities, E.ON and RWE, are involved in major gas pipeline projects.

E.ON has partnered up with Russian Gazprom in building the Nord Stream gas pipeline, which is to transport Russian gas through the Baltic Sea into Germany.

RWE is a major partner in the Nabucco pipeline project which aims to bring central Asian gas through Turkey into western Europe.

Analysts say that German utilities would not invest in large-scale gas power capacity increases before it sharply increased its import capacities, and coal was therefore the fossil fuel of choice for years to come.

Market price developments in recent weeks also favors coal over gas.

At current prices, coal generation offers a German power producer a revenue margin of around 5.50 euros per megawatt-hour MWh for baseload 24 hours electricity delivered throughout 2012.

The equivalent gas contract, by contrast, would make a loss of around 3.25 per MWh, meaning gas power plants in Germany are only profitable during the more expensive peak delivery hours daytime on weekdays.

"At current prices, all German producers will be burning coal flat-out 24 hours if the can, and use gas generation to support demand during peak hours," said one German utility trader.

A coal trader supplying German utilities said: "All the German utilities have bought some coal just recently and are now re-assessing what they need through the summer and for the winter.

"The change to the nuclear policy is looking rather positive for coal burn in Germany through the year."

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Louisiana power grid needs 'complete rebuild' after Hurricane Laura, restoration to take weeks

Louisiana Grid Rebuild After Hurricane Laura will overhaul transmission lines and distribution networks in Lake Charles, as Entergy restores power after catastrophic outages, replacing poles, transformers, and spans to stabilize critical electric infrastructure.

 

Key Points

Entergy's project replacing transmission and distribution in Lake Charles to restore power after the Cat 4 storm

✅ 1,000+ transmission structures and 6,637 poles damaged

✅ Entergy targets first energized line into Lake Charles in 2 weeks

✅ Full rebuild of Calcasieu and Cameron lines will take weeks

 

The main power utility for southwest Louisiana will need to "rebuild" the region's grid after Hurricane Laura blasted the region with 150 mph winds last week, top officials said.

The Category 4 hurricane made landfall last Thursday just south of Lake Charles near Cameron, damaging or destroying thousands of electric poles as well as leaving "catastrophic damages" to the transmission system for southwest Louisiana, similar to impacts seen during Typhoon Mangkhut outages in Hong Kong that left many without electricity.

“This is not a restoration," Entergy Louisiana president and CEO Phillip May said in a statement. "It’s almost a complete rebuild of our transmission and distribution system that serves Calcasieu and Cameron parishes.”

According to Entergy, all nine transmission lines that deliver power into the Lake Charles area are currently out service due to storm damage to multiple structures and spans of wire.

The transmission system is a critical component in the delivery of power to customers’ homes, and failures at substations can trigger large outages, as seen in Los Angeles station fire outage reported recently, according to the company.

Of those structures impacted, many were damaged "beyond repair" and require complete replacement.

Broken electrical poles are seen in Holly Beach, La., in the aftermath of Hurricane Laura, Saturday, Aug. 29, 2020. (AP Photo/Gerald Herbert)

Entergy said the damage in southwest Louisiana includes 1,000 transmission structures, 6,637 broken poles, 2,926 transformers and 338 miles of downed distribution wire, highlighting why proactive reliability investments in Hamilton are being pursued by other utilities.

Some 8,300 workers are now in the area working to rebuild the transmission lines, but Entergy said that it will be about two to three weeks before power is available to customers in the Lake Charles area, a timeline similar to Tennessee outages after severe storms reported recently in other states.

"Restoring power will take longer to customers in inaccessible areas of the region," the company said. "While not impacting the expected restoration of service to residential customers, initial estimates are it will take weeks to rebuild all transmission lines in Calcasieu and Cameron parishes."

Entergy Louisiana expects to energize the first of its transmission lines into Lake Charles in two weeks.

“We understand going without power for this extended period will be challenging, and this is not the news customers want to hear. But we have thousands of workers dedicated to rebuilding our grid as quickly as they safely can to return some normalcy to our customers’ lives,” May said.

According to power outage tracking website poweroutage.us, over 164,000 customers remain without service in Louisiana as of Thursday morning, while a Carolinas outage update shows hundreds of thousands affected there as well.

On Wednesday, the Edison Electric Institute, the association of investor-owned electric companies in the U.S., said in a statement to FOX Business that electricity has been restored to approximately 737,000 customers, or 75% of those impacted by the storm across Louisiana, eastern Texas, Mississippi, and Arkansas, even as utilities adapt to climate change to improve resilience.

At least 29,000 workers from 29 states, the District of Columbia and Canada are working to restore power in the region, according to the Electricity Subsector Coordinating Council (ESCC), which is coordinating efforts from government and power industry.

“The transmission loss in Louisiana is significant, with more than 1,000 transmission structures damaged or destroyed by the storm," Department of Energy (DOE) Deputy Secretary Mark Menezes said in a statement. Rebuilding the transmission system is essential to the overall restoration effort and will take weeks given the massive scale and complexity of the work. We will continue to coordinate closely to ensure the full capabilities of the industry and government are marshaled to rebuild this critical infrastructure as quickly as possible.” 

At least 17 deaths in Louisiana have been attributed to the storm; more than half of those killed by carbon monoxide poisoning from the unsafe operation of generators, and residents are urged to follow generator safety tips to reduce these risks. Two additional deaths were verified on Wednesday in Beauregard Parish, which health officials said were due to heat-related illness following the storm.

 

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Philippines wants Canada's help to avoid China, U.S

Philippines-Canada Indo-Pacific Partnership strengthens ASEAN cooperation, maritime security, and South China Sea diplomacy, balancing U.S.-China rivalry through a rules-based order, trade diversification, and middle-power engagement to foster regional stability and sustainable growth.

 

Key Points

A strategic pact to balance U.S.-China rivalry, back ASEAN, and advance maritime security and a rules-based order

✅ Prioritizes ASEAN-led cooperation and regional diplomacy

✅ Supports maritime security and South China Sea stability

✅ Diversifies trade, infrastructure, energy, and education ties

 

The Philippines finds itself caught in a geopolitical tug-of-war between the United States and China, two superpowers with competing interests in the Indo-Pacific region. To navigate this complex situation, the Philippines is seeking closer ties with Canada, a middle power with a strong focus on diplomacy and regional cooperation and a deepening U.S.-Canada energy and minerals partnership that reinforces shared strategic interests.

The Philippines, like many Southeast Asian nations, desires peace and stability for continued economic growth. However, the intensifying rivalry between the U.S. and China threatens to disrupt this. Territorial disputes in the South China Sea, where China claims vast swathes of waters contested by the Philippines, are a major point of contention. The Philippines has a long-standing alliance with the U.S., whose current administration is viewed as better for Canada's energy sector by some observers, but it also has growing economic ties with China. This delicate balancing act is becoming increasingly difficult.

This is where Canada enters the picture. The Philippines sees Canada as a potential bridge between the two superpowers. Foreign Affairs Secretary Enrique Manalo emphasizes that the future of the Indo-Pacific shouldn't be dictated by "great power rivalry." Canada, with its emphasis on peaceful solutions and its strong relationships with both the U.S. and China, despite electricity exports at risk from periodic trade tensions, presents a welcome alternative.

There are several reasons why the Philippines views Canada as a natural partner. First, Canada's Indo-Pacific strategy prioritizes the Association of Southeast Asian Nations (ASEAN), a regional bloc that includes the Philippines, and reflects trade policy debates in Ottawa where Canadians support tariffs on energy and minerals. This focus on regional cooperation aligns with the Philippines' desire for a united ASEAN voice.

Second, Canada offers the Philippines opportunities for economic diversification. While China is a significant trading partner, the Philippines wants to lessen its dependence on any single power. Canada's expertise in areas like agriculture, infrastructure, education, and renewable energy aligns with the Philippines' clean energy commitment and development goals.

Third, Canada's experience in peacekeeping and maritime security can be valuable to the Philippines. The Philippines faces challenges in the South China Sea, and Canada's commitment to a rules-based international order resonates with the Philippines' desire for peaceful resolution of territorial disputes.

Canada, for its part, sees the Philippines as a strategically important partner in the Indo-Pacific. A stronger Philippines contributes to a more stable region, which aligns with Canada's own interests. Additionally, closer ties with the Philippines open doors for increased Canadian trade and investment in Southeast Asia, including in critical minerals supply chains and energy projects.

The Philippines' pursuit of a middle ground between the U.S. and China is not without its challenges. Balancing strong relationships with both powers requires careful diplomacy, even as tariff threats boost support for Canadian energy projects domestically. However, Canada's emergence as a potential partner offers the Philippines a much-needed counterweight and a path towards regional stability and economic prosperity.

By working together, Canada and the Philippines can promote peaceful solutions, strengthen regional cooperation, and ensure that the Indo-Pacific remains a place of opportunity for all nations, not just superpowers.

 

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NEW Hydro One shares down after Ontario government says CEO, board out

Hydro One Leadership Shakeup unsettles investors as Ontario government ousts CEO and board, pressuring shares; analysts cite political and regulatory risk, stock volatility, trimmed price targets, and dividend stability at the regulated utility.

 

Key Points

An abrupt CEO exit and board overhaul at Hydro One, driving share declines and raising political and regulatory risk.

✅ Shares fall as CEO retires and board resigns under provincial pressure.

✅ Analysts cut price targets; warn of political, regulatory risks.

✅ New board to pick CEO; province consults on compensation.

 

Hydro One Ltd. shares slid Thursday with some analysts sounding warnings of greater uncertainty after the new Ontario government announced the retirement of the electrical utility's chief executive and the replacement of its board of directors.

 After sagging by almost eight per cent in early trading on the Toronto Stock Exchange, following news that Q2 profit plunged 23% amid weaker electricity revenue, shares of the company were later down four per cent, or 81 cents, at $19.36 as of 11:42 a.m. ET.

On Wednesday, after stock markets had closed for the day, Ontario Premier Doug Ford announced the immediate retirement of Hydro One CEO Mayo Schmidt. He leaves with a $400,000 payout in lieu of post-retirement benefits and allowances, Hydro One said.

Doug Ford's government forces out Hydro One '$6-million man'

During the recent provincial election campaign, Ford vowed to fire Schmidt, who earned $6.2 million last year and whose salary wouldn't be reduced despite calls to cut electricity costs.

Paul Dobson, Hydro One's chief financial officer, will serve as acting CEO until a new top executive is selected.

Ford also said the entire board of directors of the utility would resign. Hydro One said a new board — four members of which will be nominated by the province — will select the company's next CEO, and the province will be consulted on the next leader's compensation.

A new board is expected to be formed by mid-August.

The provincial government is the largest single investor in Hydro One, holding a 47 per cent stake. The company was partly privatized by the former Liberal government in 2015, while the NDP has proposed to make hydro public again in Ontario to change course.

 

Doug Ford promises to keep Pickering nuclear plant open until 2024

In response to the government's move to supplant the utility's board and CEO, some analysts cautioned investors about too many unknowns in the near-term outlook, citing raised political or regulatory risks.

Analyst Jeremy Rosenfield of iA Securities cut his rating on Hydro One shares to hold from buy, and reduced his 12-month price target for the stock to $24 from $26.

Rosenfield said the stock is still a defensive investment supported by stable earnings and cash flows, good earnings growth and healthy dividend.

However, he said in a research note that "the heightened potential for further political interference in the province's electricity market and regulated utility framework represent key risk factors that are likely to outweigh Hydro One's fundamentals over the near term."

 

Potential challenge to find new CEO

Laurentian Bank Securities analyst Mona Nazir said in a research note that the magnitude of change all at once was "surprising but not shocking."

She said the agreement that will see Hydro One consult with the provincial government on matters involving executive pay could have an impact on the hiring of a new CEO for the utility.

"Given the government's open and public criticism of the company and a potential ceiling on compensation, it may be challenging to attract top talent to the position," she wrote.

Laurentian cut its rating on the Hydro One to hold and reduced its price target to $21 from $24.

Analysts at CIBC World Markets said investors face an uncertain future, noting parallels with debates at Manitoba Hydro over political direction.

"In particular, we are are concerned about the government meddling in with [power] rates," wrote Robert Catellier and Archit Kshetrapal in a research note, adding they believe the new provincial government is aiming for a 12 per cent reduction in customers' power bills.

CIBC reduced its price target on Hydro One's shares to $20.50 from its previous target of $24.

 

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Australian operator warns of reduced power reserves

Australia Electricity Supply Shortfall highlights AEMO's warning of reduced reserves as coal retirements outpace capacity, risking load shedding. Calls for 1GW strategic reserves and investment in renewables, storage, and dispatchable power in Victoria.

 

Key Points

It is AEMO's forecast of reduced reserves, higher outage risk, and a need for 1GW strategic backup capacity.

✅ Coal retirements outpacing firm, dispatchable capacity

✅ AEMO urges 1GW strategic reserves in Victoria and South Australia

✅ Investment needed: renewables, storage, grid and reliability services

 

Australia’s electricity operator has warned of threats to electricity supply including a shortfall in generation and reduced power reserves on the horizon.

The Australian Energy Market Operator (AEMO) has called for further investment in the country’s energy portfolio as retiring coal plants are replaced by intermittent renewables poised to eclipse coal, leaving the grid with less back-up capacity.

AEMO has said this increases the chances of supply interruption and load shedding.

It added the federal government should target 1GW of strategic reserves in the states most at risk – Victoria and South Australia, even as the Prime Minister has ruled out taxpayer-funded power plants in the current energy battle.

CEO of the Clean Energy Council, Kane Thornton, said the shortfall in generation, reflected in a short supply of electricity, was due a decade of indecisiveness and debate leading to a “policy vacuum”.

He added: “The AEMO report revealed that the new projects added to the system under the renewable energy target will help to improve reliability over the next few years.

“We need to accept that the energy system is in transition, with lessons from dispatchable power shortages in Europe, and long term policy is now essential to ensure private investment in the most efficient new energy technology and solutions.”

 

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Utilities commission changes community choice exit fees; what happens now in San Diego?

CPUC Exit Fee Increase for CCAs adjusts the PCIA, affecting utilities, San Diego ratepayers, renewable energy procurement, customer equity, and cost allocation, while providing regulatory certainty for Community Choice Aggregation programs and clean energy goals.

 

Key Points

A CPUC-approved change raising PCIA exit fees paid by CCAs to utilities, balancing cost shifts and customer equity.

✅ PCIA rises from about 2.5c to roughly 4.25c per kWh in San Diego

✅ Aims to reduce cost shifts and protect non-CCA customers

✅ Offers regulatory certainty for CCA launches and clean energy goals

 

The California Public Utilities Commission approved an increase on the exit fees charged to customers who take part in Community Choice Aggregation -- government-run alternatives to traditional utilities like San Diego Gas & Electric.

After reviewing two competing exit fee proposals, all five commissioners voted Thursday in favor of an adjustment that many CCA advocates predicted could hamper the growth of the community choice movement.

But minutes after the vote was announced, one of the leading voices in favor of the city San Diego establishing its own CCA said the decision was good news because it provides some regulatory certainty.

"For us in San Diego, it's a green light to move forward with community choice," said Nicole Capretz, executive director of the Climate Action Campaign. "For us, it's let's go, let's launch and let's give families a choice. We no longer have to wait."

Under the CCA model, utilities still maintain transmission and distribution lines (poles and wires, etc.) and handle customer billing. But officials in a given local government entity make the final decisions about what kind of power sources are purchased.

Once a CCA is formed, its customers must pay an exit fee -- called a Power Charge Indifference Adjustment -- to the legacy utility serving that particular region. The fee is included in customers' monthly bills.

The fee is required to offset the costs of the investments utilities made over the years for things like natural gas power plants, renewable energy facilities and other infrastructure.

Utilities argue if the exit fee is set too low, it does not fairly compensate them for their investments; if it's too high, CCAs complain it reduces the financial incentive for their potential customers.

The Public Utilities Commission chose to adopt a proposal that some said was more favorable to utilities, leading to complaints from CCA boosters.

"We see this will really throw sand in the gears in our ability to do things that can move us toward (climate change) goals," Jim Parks, staff member of Valley Clean Energy, a CCA based in Davis, said before the vote.

Commissioner Carla Peterman, who authored the proposal that passed, said she supports CCAs but stressed the commission has a "legal obligation" to make sure increased costs are not shouldered by "customers who do not, or cannot, join a CCA. Today's proposal ensures a more level playing field between customers."

As for what the vote means for the exit fee in San Diego, Peterman's office earlier in the week estimated the charge would rise from 2.5 cents a kilowatt-hour to about 4.25 cents.

The Clear the Air Coaltion, a San Diego County group critical of CCAs, said the newly established exit fee -- which goes into effect starting next year -- is "a step in the direction."

But the group, which includes the San Diego Regional Chamber of Commerce, the San Diego County Taxpayers Association and lobbyists for Sempra Energy (the parent company of SDG&E), repeated concerns it has brought up before.

"If the city of San Diego decides to get into the energy business this decision means ratepayers in National City, Chula Vista, Carlsbad, Imperial Beach, La Mesa, El Cajon and all other neighboring communities would see higher energy bills, and San Diego taxpayers would be faced with mounting debt," coalition spokesman Tony Manolatos said in an email.

CCA supporters say community choice is critical in ensuring San Diego meets the pledge made by Mayor Kevin Faulconer to adopt the city's Climate Action Plan, mandating 100 percent of the city's electricity needs must come from renewable sources by 2035.

Now attention turns to Faulconer, who promised to make a decision on bringing a CCA proposal to the San Diego City Council only after the utilities commission made its decision.

A Faulconer spokesman said Thursday afternoon that the vote "provides the clarity we've been waiting for to move forward" but did not offer a specific time table.

"We're on schedule to reach Mayor Faulconer's goal of choosing a pathway that achieves our renewable energy goals while also protecting ratepayers, and the mayor looks forward to making his recommendation in the next few weeks," said Craig Gustafson, a Faulconer spokesman, in an email.

A feasibility study released last year predicted a CCA in San Diego has the potential to deliver cheaper rates over time than SDG&E's current service, while providing as much as 50 percent renewable energy by 2023 and 80 percent by 2027.

"The city has already figured out we are still capable of launching a program, having competitive, affordable rates and finally offering families a choice as to who their energy provider is," said Capretz, who helped draft an initial blueprint of the climate plan as a city staffer.

SDG&E has come to the city with a counterproposal that offers 100 percent renewables by 2035.

Thus far, the utility has produced a rough outline for a "tariff" program that would charge ratepayers the cost of delivering more clean sources of energy over time.

Some council members have expressed frustration more specifics have not been sketched out.

SDG&E officials said they will take the new exit fee into account as they go forward with their counterproposal to the city council.

Speaking in general about the utility commission's decision, SDG&E spokeswoman Helen Gao called it "a victory for our customers, as it minimizes the cost shifts that they have been burdened with under the existing fee formula.

"As commissioners noted in rendering their decision, reforming the (exit fee) addresses a customer-to-customer equity issue and has nothing to do with increasing profits for investor-owned utilities," Gao said in an email.

 

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Hydropower Plants to Support Solar and Wind Energy

Solar-Wind-Water West Africa integrates hydropower with solar and wind to boost grid flexibility, clean electricity, and decarbonization, leveraging the West African Power Pool and climate data modeling reported in Nature Sustainability.

 

Key Points

A strategy using hydropower to balance solar and wind, enabling reliable, low-carbon electricity across West Africa.

✅ Hydropower dispatch covers solar and wind shortfalls.

✅ Regional interconnection via West African Power Pool.

✅ Cuts CO2 versus gas while limiting new dam projects.

 

Hydropower plants can support solar and wind power, rather unpredictable by nature, in a climate-friendly manner. A new study in the scientific journal Nature Sustainability has now mapped the potential for such "solar-wind-water" strategies for West Africa: an important region where the power sector is still under development, amid IEA investment needs for universal access, and where generation capacity and power grids will be greatly expanded in the coming years. "Countries in West Africa therefore now have the opportunity to plan this expansion according to strategies that rely on modern, climate-friendly energy generation," says Sebastian Sterl, energy and climate scientist at Vrije Universiteit Brussel and KU Leuven and lead author of the study. "A completely different situation from Europe, where power supply has been dependent on polluting power plants for many decades - which many countries now want to rid themselves of."

Solar and wind power generation is increasing worldwide and becoming cheaper and cheaper. This helps to keep climate targets in sight, but also poses challenges. For instance, critics often argue that these energy sources are too unpredictable and variable to be part of a reliable electricity mix on a large scale, though combining multiple resources can enhance project performance.

"Indeed, our electricity systems will have to become much more flexible if we are to feed large amounts of solar and wind power into the grid. Flexibility is currently mostly provided by gas power plants. Unfortunately, these cause a lot of CO2 emissions," says Sebastian Sterl, energy and climate expert at Vrije Universiteit Brussel (VUB) and KU Leuven. "But in many countries, hydropower plants can be a fossil fuel-free alternative to support solar and wind energy. After all, hydropower plants can be dispatched at times when insufficient solar and wind power is available."

The research team, composed of experts from VUB, KU Leuven, the International Renewable Energy Agency (IRENA), and Climate Analytics, designed a new computer model for their study, running on detailed water, weather and climate data. They used this model to investigate how renewable power sources in West Africa could be exploited as effectively as possible for a reliable power supply, even without large-scale storage, in line with World Bank support for wind in developing countries. All this without losing sight of the environmental impact of large hydropower plants.

"This is far from trivial to calculate," says Prof. Wim Thiery, climate scientist at the VUB, who was also involved in the study. "Hydroelectric power stations in West Africa depend on the monsoon; in the dry season they run on their reserves. Both sun and wind, as well as power requirements, have their own typical hourly, daily and seasonal patterns. Solar, wind and hydropower all vary from year to year and may be impacted by climate change, including projections that wind resources shift southward in coming years. In addition, their potential is spatially very unevenly distributed."

West African Power Pool

The study demonstrates that it will be particularly important to create a "West African Power Pool", a regional interconnection of national power grids to serve as a path to universal electricity access across the region. Countries with a tropical climate, such as Ghana and the Ivory Coast, typically have a lot of potential for hydropower and quite high solar radiation, but hardly any wind. The drier and more desert-like countries, such as Senegal and Niger, hardly have any opportunities for hydropower, but receive more sunlight and more wind. The potential for reliable, clean power generation based on solar and wind power, supported by flexibly dispatched hydropower, increases by more than 30% when countries can share their potential regionally, the researchers discovered.

All measures taken together would allow roughly 60% of the current electricity demand in West Africa to be met with complementary renewable sources, despite concerns about slow greening of Africa's electricity, of which roughly half would be solar and wind power and the other half hydropower - without the need for large-scale battery or other storage plants. According to the study, within a few years, the cost of solar and wind power generation in West Africa is also expected to drop to such an extent that the proposed solar-wind-water strategies will provide cheaper electricity than gas-fired power plants, which currently still account for more than half of all electricity supply in West Africa.

Better ecological footprint

Hydropower plants can have a considerable negative impact on local ecology. In many developing countries, piles of controversial plans for new hydropower plants have been proposed. The study can help to make future investments in hydropower more sustainable. "By using existing and planned hydropower plants as optimally as possible to massively support solar and wind energy, one can at the same time make certain new dams superfluous," says Sterl. "This way two birds can be caught with one stone. Simultaneously, one avoids CO2 emissions from gas-fired power stations and the environmental impact of hydropower overexploitation."

Global relevance

The methods developed for the study are easily transferable to other regions, and the research has worldwide relevance, as shown by a US 80% study on high variable renewable shares. Sterl: "Nearly all regions with a lot of hydropower, or hydropower potential, could use it to compensate shortfalls in solar and wind power." Various European countries, with Norway at the front, have shown increased interest in recent years to deploy their hydropower to support solar and wind power in EU countries. Exporting Norwegian hydropower during times when other countries undergo solar and wind power shortfalls, the European energy transition can be advanced.

 

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