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September 12, 2025
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European electricity industry issues Paris Pledge on pumped storage hydropower

The International Hydropower Association (IHA) and Eurelectric launched the Paris Pledge. It is a collective call to action, aimed at unlocking the potential of pumped storage hydropower in Europe. The signatories urge the European Union and national governments to create the right conditions for long-duration storage to meet clean energy goals.

Over 50 utilities, hydropower suppliers and energy-focused associations have signed the Paris Pledge. The document’s alternative headline is Committing to Pumped Storage to Secure Europe’s Clean Energy Future.

The International Hydropower Association (IHA) and Eurelectric – Union of the Electricity Industry launched the initiative. They warned that Europe faces an urgent and growing need for long-duration electricity storage to secure a reliable, affordable and sustainable energy future.

Amid the transition to a renewables-dominated power system, the ability to store and dispatch electricity over long periods will be critical to balance variable generation from wind and solar, ensure grid stability and resilience, and reduce reliance on imported fossil fuels, the authors stressed. They called pumped storage hydropower or PSH the most important, scalable and cost-effective long-duration electricity storage solution available today. It still provides over 90% of the world’s long-duration electricity storage capacity.

PSH is currently the most important, scalable and cost-effective long-duration electricity storage solution, the industry pointed out

By 2050, around 86% of production capacity in Europe will come from variable sources, according to the material accompanying the Paris Pledge. Encouragingly, 78 pumped storage hydropower projects are under development, for 35 GW overall. The EU accounts for over 32 GW, and the rest is in Switzerland, Norway and Turkey.

The combined pipeline would provide storage capacity in excess of 700 GWh, equivalent to more than 10 hours of consumption of Italy and Spain taken together. There is 3.9 GW in the ready-to-build phase, and 2.8 GW is under construction. Of note, an earlier report showed 52.9 GW of PSH was under development.

The existing capacity amounts to 48 GW, compared to 190 GW globally. In the EU, pumped storage hydropower systems can store 1.2 TWh overall.

Photo: Types of pumped storage (IHA, Eurelectric)

Paris Pledge calls for separate legislation for long-duration energy storage

Among other proposals, the signatories are asking the EU for a dedicated initiative to boost the rollout of electricity storage. They suggested legislation to be separate for long duration, short duration and other solutions.

The Paris Pledge calls on member states to remunerate the provision of system services and security of supply for all time frames. They should eliminate double grid fees on electricity storage technologies and accelerate permitting for PSH, the document reads.

With strong political commitment, Europe can double its pumped storage hydropower capacity in the next 25 years, according to the Paris Pledge. In-person signatories represent EDP, EDF, Iberdrola, Andritz, Enel, Statkraft, Voith, Hydrogrid, Verbund, Landsvirkjun and GE Vernova.

Pumped storage hydropower’s contribution during Iberian Peninsula blackout

During the power blackout in Spain and Portugal on April 28, pumped storage played a pivotal role in balancing and supporting the recovery of the system. In Spain, PSH generated 11 GWh of electricity in the first 12 hours, instead of the planned 12 GWh recharge. Similarly, in Portugal, hydropower and pumped storage covered 80% of the demand in the first ten hours.

Such facilities also made a major contribution to restoring the electricity grid in the entire peninsula, thanks to their so-called black start capability. It allows the power plant to be restarted without relying on external power sources and to reenergise the power system.

“Very few technologies can provide this function. As a result, within a few minutes, the first pumped storage plants were ready for synchronization and awaiting dispatch instruction” from transmission system operators, notes the report published with the Paris Pledge.

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September 12, 2025
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Severe electricity price spikes in SEE in summer 2024 could have been avoided – report

If 70% of the physical capacity of all power lines had been offered for cross-zonal trade by transmission system operators, half of the most severe price spikes or 147 spikes could have been avoided in South-East Europe in the summer of 2024, according to the latest report of the EU Agency for the Cooperation of Energy Regulators (ACER).

The 2025 Monitoring Report examines the role of cross-zonal electricity trade in shaping a more integrated and efficient European Union electricity market. It also tracks progress, challenges and benefits in the implementation of the 70% requirement.

During the summer of 2024, the EU saw a significant increase in electricity prices, affecting mostly bidding zones in central and south-eastern Europe. Some countries experienced an unseen price increase on power exchanges, from 50% to 170%.

ACER noted that prices particularly spiked during the evening hours, reaching up to EUR 1,000 per MWh.

The prices were highest in Hungary, Romania, Bulgaria and Greece

Prices were the highest in Hungary, Romania, Bulgaria and Greece. At the time, Prime Minister of Greece Kyriakos Mitsotakis wrote to European Commission President Ursula von der Leyen. Greece, Romania and Bulgaria were preparing a proposal for an intervention mechanism.

According to ACER’s report, during the high-price events, spreads at several bidding zone borders in central Europe rose to unprecedented levels, signalling insufficient availability of cross-zonal capacity to accommodate the market’s need for cross-zonal exchanges.

The 70% requirement would have enabled an average reduction of peak prices by up to EUR 78 per MWh

The authors’ comparison of the average realized day-ahead prices during the evening peaks with the counterfactual scenario showed a considerable mitigation of prices.

It revealed that the implementation of the 70% requirement would have enabled an average reduction of peak prices by up to EUR 78 per MWh in central and south-east bidding zones, underlining the dampening effect of cross-zonal trade, the document reads.

According to ACER, higher availability of cross-zonal capacities in central Europe would have mitigated both the frequency and the severity of the high price events, as cross-zonal trade provides flexibility to the system.

End-2025 deadline is at risk

The 2019 Clean Energy Package introduced a legal requirement on EU electricity transmission system operators (TSOs) to offer at least 70% of their physical capacity on all lines of relevance for cross-zonal trade.

The obligation is intended to maximise cross-zonal trade and mitigate its discrimination over internal trade, ACER explained.

The 70% requirement ensures that domestic electricity flows are not prioritized over cross-border trade, mitigates price spikes, such as those seen in summer 2024 across South-East Europe, and brings significant additional welfare to EU electricity markets, it added.

The agency stressed that the end-2025 deadline is at risk.

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September 11, 2025
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LONGi and Nofar Energy forge landmark partnership for Romania’s largest solar project using revolutionary BC technology

LONGi Solar, the global leader in solar innovation, and Israel’s premier renewable energy developer Nofar Energy have announced a historic partnership to develop one of Romania‘s largest solar installations – the 282 MW Corbii Mari project in Dâmbovița county. This pathbreaking collaboration will deploy over 430,000 Hi-MO 9 BC modules, establishing back contact technology as Europe’s definitive solution for utility-scale energy transformation while marking Nofar’s most ambitious international venture to date.

The Corbii Mari photovoltaic project of 282 MW will go into production in 2026. It represents a dual milestone in Europe’s renewable transition. As Nofar Energy’s largest overseas IPP investment, it anchors the Israeli leader’s strategic expansion into European markets. Simultaneously, the installation stands as Romania’s largest BC deployment, leveraging Hi-MO 9’s industry-leading 24.8% efficiency to overcome the region’s climatic challenges. The project’s seamless execution demonstrates how the BC technology of LONGi Solar delivers unparalleled bankability for developers navigating Europe’s complex energy landscape.

The two companies have agreed to deploy more than 430,000 Hi-MO 9 BC modules.

Leon Zhang, President of LONGi Europe, emphasized the project’s transformative impact: “Corbii Mari transcends conventional solar deployments – it’s a powerful validation that BC technology has matured into Europe’s utility-scale foundation. By choosing Hi-MO 9 for their flagship European venture, Nofar Energy demonstrates how visionary partners are accelerating the energy transition through technological leadership.”

The 282 MW Corbii Mari initiative positions back contact modules as Europe’s utility-scale standard

Mirel Jarnea, Strategic Accounts Manager SEE of LONGi Europe, added: “Nofar’s selection of Hi-MO 9 is a testament to the global energy sector’s recognition of BC technology as the ultimate frontier in solar innovation. This partnership reaffirms our commitment to delivering solutions that redefine efficiency, durability, and sustainability.”

Setting benchmark for sustainable innovation

Favi Stelian, Managing Partner Romania of Nofar Energy, stated: “The Corbii Mari project represents a defining moment for Nofar Energy’s European vision. By partnering with LONGi and deploying Hi-MO 9 BC technology, we are not only delivering Romania’s largest solar initiative but also setting a new benchmark for sustainable innovation across the continent.”

The project harnesses Hi-MO 9’s revolutionary back contact architecture to achieve exceptional performance in Romania’s variable climate. The modules’ temperature resilience and 30-year degradation guarantee ensure consistent energy generation, while the ultra-high power output minimizes land use – preserving Dâmbovița county’s agricultural ecosystems.

With an estimated annual output of 380 GWh, Corbii Mari will displace 220,000 tonnes of carbon emissions annually, equivalent to removing 48,000 combustion-engine vehicles from roads while powering over 50,000 Romanian households.

Positioned at the vanguard of Eastern Europe’s energy transition, Corbii Mari establishes a replicable model for Nofar’s expanding multi-GW European pipeline. The collaboration signals accelerating regional adoption of BC technology, with project insights informing solar development across emerging markets where efficiency and bankability are paramount.

About LONGi

Founded in 2000, LONGi is committed to being the world’s leading solar technology company, focusing on customer-driven value creation for full scenario energy transformation.

Under its mission of Making the Best of Solar Energy to Build a Green World, LONGi has dedicated itself to technology innovation and established several business sectors, covering mono silicon wafers cells and modules, commercial and industrial (C&I) distributed solar solutions, green energy solutions and hydrogen equipment. The company has honed its capabilities to provide green energy and, more recently, also embraced green hydrogen products and solutions to support global zero-carbon development.

About NOFAR Energy

Founded in 2011, Nofar Energy is a global leader in renewable energy investments. Since 2020, Nofar has been a public traded company (TASE: NOFR) at the Tel Aviv Stock Exchange. For the last 12 years, Nofar has been growing rapidly and consistently, with an extensive portfolio of projects and subsidiaries across nine territories, 200 employees worldwide, and major renewable energy and energy storage projects.

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September 11, 2025
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Parliament of Montenegro installs solar power plant

The solar power plant on the roof of the Parliament of Montenegro in Podgorica has started producing electricity. The plant’s total peak capacity is 81 kW, and it is expected to generate approximately 100,000 kWh per year.

Montenegro is likely the first country in the former Yugoslavia to install solar panels on the roof of its parliament. This project represents an important step towards sustainable development and the efficient use of energy resources, according to the Parliament of Montenegro.

The installed photovoltaic system consists of 150 monocrystalline solar panels, each with a capacity of 540 W. The total peak capacity of the plant is 81 kW. Electricity is delivered to the grid through a 70 kVA inverter.

The estimated annual power production of 100,000 kWh will cover a significant portion of the assembly’s consumption and contribute to reducing greenhouse gas emissions. This achievement will promote the parliament into a prosumer.

The solar plant will cover a significant part of the parliament’s consumption

The parliament underlined that the implementation of the project represents its commitment to improving energy efficiency. It recalled that the previous renovation enabled a significant decrease in the power consumption.

This year, the assembly plans to start modernizing its cooling system and boost energy efficiency with a new facade. The activities are set to be finished in 2026, further enhancing the overall energy balance of the building.

For years now Montenegro has been implementing a program for the installation of solar panels on the roofs of households and businesses

The Parliament of Montenegro said that, as a socially responsible institution, it is strategically oriented towards modern sustainability standards, rational management of public funds, and environmental protection.

For years now, Montenegro has been implementing a program for the installation of solar panels on the roofs of households and businesses. Power utility Elektroprivreda Crne Gore (EPCG) is in charge of the program. Solari 3000+ and Solari 500+ are finished, and Solari 5000+ is underway.

Of note, the Government of Serbia also announced its intention to install photovoltaic units and become a prosumer. However, there are currently no new updates regarding the implementation of this project.

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September 10, 2025
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September 15 – new deadline for applications for 2025 Female Leader in Sustainable Energy

WISE Serbia, women’s network in sustainable energy, climate action, and environment, under the auspices of the German development cooperation GIZ, has extended the deadline for applications within the 2025 Female Leader in Sustainable Energy award. The new application deadline is September 15.

The call for nominations aims to recognize women who, through their leadership, outstanding achievements, and vision, have demonstrated significant contributions to the sustainable development of Serbia’s energy and related sectors, energy transition acceleration, improvement of energy efficiency, energy security, and safety, as well as the greater recognition of women in this field.

Information about the Award competition

Women professionally engaged in the energy sector, climate action, or environmental protection in Serbia are eligible to apply, both citizens of Serbia and foreign nationals working in Serbia. The candidates themselves can submit applications, as well as their employers, colleagues, or teams who wish to highlight the outstanding achievements of their associates.

The invitation is open to all profiles – decision-makers, employees in business, public enterprises, academia, civic energy, non-governmental sector, international organizations, consulting teams, legal and financial institutions, IT experts, as well as media representatives.

The application needs to be emailed by September 15, 2025, to info@wisesrbija.org. It needs to include:

  1. Nomination letter presenting the candidate and listing the significant results and achievements nominating her for the selection.
  2. Professional résumé.
  3. A short nomination statement to present to the wider public on the WISE Serbia website and social media platforms. The statement should be up to 100 words.
  4. Photo portrait in high resolution.
  5. Contact info – email address, phone number, social network accounts that the candidate is actively using.

Applications should be sent by email to info@wisesrbija.org.

After processing the submitted applications, the candidates’ profiles will be published on the WISE Serbia network website – wisesrbija.org, and the voting will be open to the public. The candidate with the highest number of votes will be awarded the title of Female Leader in Sustainable Energy.

The announcement ceremony for the Leader in Sustainable Energy 2025 will take place during the WISE Serbia women’s network annual conference in mid-October in Belgrade.

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September 10, 2025
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Environmentalists warn EU that Bulgaria ignores coal plants breaching pollution rules

Greenpeace Bulgaria and Za Zemiata (For the Earth) said they would file a complaint today with the European Commission over repeated failures by Bulgarian authorities to enforce the European Union’s environmental law at four coal plants. They expressed the view that institutions are prioritizing financial interests over public health and the environment.

Environmental organizations Greenpeace Bulgaria and Za Zemiata wrote a complaint, to submit to the European Commission, regarding what they described as long-standing violations by four coal power plants linked to Bulgarian businessman Hristo Kovachki. “Bulgarian institutions refuse to apply EU environmental law as intended, favoring coal owners over people and nature. This complaint provides evidence for the European Commission to initiate infringement procedures,” said environmental lawyer Regina Stoilova.

Alleged breaches from 2018 to 2023 concern thermal power plants Bobov Dol in Golemo Selo, Brikel in Galabovo, Republika in Pernik, and Maritsa 3 in Dimitrovgrad. The two groups said they exhausted all national-level mechanisms for holding the polluters accountable and protecting affected citizens and the environment.

The two groups have exhausted all legal mechanisms on the national level

Instead of enforcing environmental standards, Bulgarian institutions – including the Ministry of Environment and Water, the Executive Environmental Agency and regional environmental and water inspectorates – have repeatedly issued permits to offenders, imposed weak or ineffective fines, and ignored serious pollution events that threaten public health, the environmentalists added.

“These coal plants are shielded by an institutional network protecting Kovachki’s opaque coal business. Thousands of Bulgarians living under these chimneys continue to face rampant pollution with no accountability,” said Director of Greenpeace Bulgaria Meglena Antonova.

Penalties could have been millions of euros higher

Bulgarian courts have also failed to act, according to the statement. During the legal proceedings after Brikel and Maritsa 3 were temporarily closed in 2022, the plants continued operating for three years. In the said six-year period, Kovachki-linked plants avoided nearly EUR 2.5 million in penalties, , the organizations calculated and stressed that Brikel payed only EUR 3,300 in fines.

In official documents, the businessman holds no ownership in most of the firms that media outlets regularly link him to. Kovachki has only identified himself as a consultant in some of them. Investigative journalists have obtained documents indicating that he controls a group of companies through a holding called Orion, which he denied.

Violations include illegal wastewater discharge

The violations of the permits consisted of illegal emissions into the air, illegal discharge of wastewater into rivers, and use of prohibited fuels.

“In an attempt to reduce production costs, the coal power plants associated with Kovachki have systematically co-fired waste and biomass with coal without possessing the necessary permits. Even after obtaining the required permits, the operators have significantly exceeded the biomass limits specified in them,” reads a report accompanying the announcement.

Meanwhile, the power plants have gained millions from saved carbon emission allowances, the document adds. An analysis by Za Zemiata estimates the damages for the period 2017-2021 at EUR 75 million for five plants associated with Kovachki, four of which are the subject of the new complaint.

Attack on activist living near Bobov Dol

“Not only has there been no accountability, but activists are also facing aggression for speaking out. Over the weekend, Daniela Toneva, an activist opposing the Bobov Dol TPP coal plant, was attacked after speaking out about the plant’s severe pollution and the links between Hristo Kovachki and the chairman of the Bobov Dol Municipal Council Krasimir Chavraganski,” said Beyond Fossil Fuels, a partner organization.

Namely, someone spilled paint on Toneva’s car and broke her window with a stone they threw into the house. She told Svobodna Evropa (RFE/RL) that local authorities are hostile to her because of her activism. The firm operating the nearby Bobov Dol facility condemned the attack.

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