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July 31, 2025
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Price of residential battery storage in Europe drops over 50% in two years

The mature residential battery storage markets in Europe are stabilizing, while policy-driven and emerging markets are gaining traction, according to EUPD Research. Its new report showed prices of home batteries slumped more than 50% between the first half of 2023 and the first half of this year.

The European residential battery storage market has remained resilient in 2025, with notable growth across mid-sized and emerging markets, according to EUPD Research’s latest Electrical Energy Storage (EES) Report. It tracked systems of up to 20 kWh.

While mature markets such as Germany and Italy began the year with more subdued figures, the overall market trajectory points to continued expansion, with over one million new residential storage systems expected to be installed across Europe this year. Although the phaseout of subsidies and adjustments to support schemes led to a weaker start in top markets, the outlook for the second half is more optimistic, the firm said.

Home batteries are overwhelmingly intended for storing electricity from household photovoltaic systems, usually installed on roofs, balconies or on canopies next to houses.

Dynamic electricity tariffs, self-consumption fueling residential battery storage push

Increasing interest in dynamic electricity tariffs and enhanced self-consumption is expected to stimulate demand for residential market storage. Mature markets are stabilizing, while policy-driven and emerging markets are gaining traction, the update showed.

The sector continues to benefit from falling battery prices. A significant drop in lithium prices, combined with intensified competition due to the influx of new market players in the past two years, has accelerated price erosion and reduced overall system costs.

The data provider’s price index more than halved between the first half of 2023 and the first half of this year. The current average selling price of residential battery storage, in the second half of 2025, came in at EUR 711 per kWh. It is 46.6% lower than in the first half of 2023.

The segment of newly installed residential battery storage in Germany is in a moderate decline

Despite a moderate decline in residential battery installations during the first half of 2025, Germany remains the strongest market in Europe, with demand expected to stay resilient throughout the year. The projected 6% year-on-year decline is mainly due to slower deployment of photovoltaics, reduced regional incentives, and a growing shift in focus toward commercial and industrial (C&I) and utility-scale storage.

Alongside Italy, Germany is estimated to account for the lion’s share of new residential storage capacity additions through 2028, despite Italy’s current slowdown amid the gradual weakening of the Superbonus scheme.

This year’s residential battery storage additions in Europe’s largest economy are seen at 4.7 GWh, compared to a projected 6.04 GW in home PV installations of up to 20 kW. Italy accounts for an expected 1.24 GWh and 1.44 GW, respectively.

Steady, robust growth in several markets

Markets such as Austria, France, the Netherlands, and the Czech Republic are demonstrating steady and robust growth, driven by rising electricity costs since 2023, increasing PV adoption, stable policy support, and increased awareness of the benefits of energy independence.

Sweden, bolstered by tax rebates and a national push toward energy self-sufficiency, has seen a record number of PV systems being installed with residential storage.

As for equipment providers, BYD maintained its top position in 2024, capturing a 20% market share, which is expected to reach 21% this year.

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July 31, 2025
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With 152 MW of wind power installed in H1 2025, Greece continues low trajectory

Just 152.2 MW of wind farms were installed in Greece in the first half of 2025, thus continuing the low trajectory of recent years.

According to the Hellenic Wind Energy Association (HWEA or ELETAEN), total wind capacity in the country reached 5,507 MW at the end of June. In the first six months of the year, 37 new wind turbines were installed in Greece, with a capacity of 152.2 MW, representing a total investment of EUR 180 million.

New capacity doubled compared to the same period of 2024, but is not enough to support a more balanced renewable mix, HWEA said. In comparison, photovoltaics consistently add similar capacity in just one month on average.

The association also mentioned that currently there is 1 GW of wind projects under construction, or contracted. The majority are expected to launch operations within the next 18 months. There is another 300 MW selected through auctions for which letters of guarantee were submitted, and it is expected to reach completion. As a result, total capacity is projected to reach 6.5 GW within the period.

HWEA: Red tape is delaying 846 MW of wind projects

HWEA stressed that due to red tape, the construction of over half of the wind power capacity awarded at renewable energy auctions in the period 2018-2022 has been delayed. Namely, 1.592 MW was selected, but just 746 MW is operational today.

“If they had been completed on time, these wind projects, with a total capacity of 846 MW, would have provided more cheap energy and permanent relief to Greek consumers and the national economy,” HWEA pointed out.

Terna Energy and Vestas lead the pack

When it comes to wind energy’s geographical dispersion, Central Greece (Sterea Ellada) leads with 2.427 MW, followed by 709 MW in the Peloponnese and 535 MW in Eastern Thrace.

The top 5 market players are Terna Energy (1,034 MW – 18.8%), owned by Masdar, Motor Oil Hellas’s subsidiary MORE (774 MW – 14.1%), Iberdrola Rokas (409 MW – 7.4%), Principia (368 MW – 6.7%) and PPC Renewables (308 MW – 5.6%), which operates within state-controlled Public Power Corp. or PPC).

The most prominent wind turbine suppliers are Vestas, with 45.1% of the market, followed by Enercon, with 25.7%, and Siemens Gamesa, with 16.4%. They are trailed by Nordex, with 7.6%, GE Renewable Energy (now GE Vernova), with 3.7%, and EWT, Goldwind and Leitwind.

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July 31, 2025
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Production starts at new 38.4 MW wind farm northeast of Bucharest

Eximprod, which installed the first wind turbine in Romania more than two decades ago, delivered the first megawatt-hours to the grid from its new wind farm in the country’s east. In addition, it is about to receive a commercial operating license for a 49.5 MW solar park in Prahova county.

Several other wind parks are also under construction amid a revival in investments in Romania. Rezolv recently secured financing for phase 2 of its Vifor wind power plant, set to become one of the largest in Europe.

Romania has been enjoying a solar power boom for the past three years, and the pace of the construction of battery energy storage facilities (BESS) is accelerating. On the wind energy front, the country’s capacity has barely held above 3 GW for a long time after the 3.24 GW peak in 2014, due to the failure of an incentives mechanism. But the investment momentum is strengthening – notably, Eximprod said it launched the operation of its 38.4 MW wind power plant in the Galați area.

The company actually installed the first wind turbine in Romania. In 2003, it put online the Vestas V 47 machine of 660 kW in Topolog in Tulcea County in the country’s east.

Eximprod Group (EPG) also provides equipment and services in the energy sector. The company’s contractor Lemacons poured concrete less than half a year ago for the foundation of the first wind turbine in the new Cudalbi 2 facility. It is located in Galați county in eastern Romania, in the Western Moldavia region.

Eximprod received support through National Recovery and Resilience Plan

Cudalbi 2 is the first wind park in the country with Enercon turbines in 12 years. The model is E-160 EP5 E2, of 5.5 MW. Eximprod has won state support for the project northeast of Bucharest via the National Recovery and Resilience Plan (NRRP or, in Romanian, PNRR). The funds are approved under the European Union’s Recovery and Resilience Facility (RRF).

The company has also built the nearby Cudalbi 1 wind farm of 54 MW, consisting of nine turbines.

In addition, Eximprod is about to receive the commercial operating license from National Energy Regulatory Authority (ANRE) for its Solar System Project photovoltaic plant. It completed the facility with 49.5 MW in connection capacity in April. According to its documentation, the facility has 65 MW in peak capacity. It consists of five units with grid connections of 9.9 MW each.

The solar park is in Ciorani, Prahova county, north of the capital city. The endeavor was reportedly worth EUR 56.2 million including a grant of EUR 13.4 million from the NRRP. The company plans to add a BESS unit of 21 MW in operating power. The said final permit will allow the project firm to sell electricity.

Lenders indicate confidence in Romania’s wind power market with financing package for Vifor

In other recent news, Rezolv secured a EUR 331 million financing package for the 269 MW second phase of its Vifor wind farm in Buzău county. It includes EUR 44 million from the European Bank for Reconstruction and Development (EBRD).

Erste Group, UniCredit Group, International Finance Corp. (IFC), Intesa Sanpaolo Group, OTP Bank and Raiffeisenlandesbank Niederösterreich-Wien all participate in the arrangement.

The Vifor wind park would consist of 72 turbines of 6.4 MW each

The first part of Vifor is under construction and scheduled for commissioning in the spring. Rezolv plans to complete phase two in late 2027.  The wind park would be one of the biggest in Europe, at 461 MW. The company is installing 72 Vestas V162 turbines of 6.4 MW.

Rezolv won a contract-for-difference (CfD) at the country’s first renewable energy auctions for phase 2, for 240 MW. The government approved 1.1 GW for wind power. The qualifications phase is ongoing for the second round of auctions, for 2 GW for wind park projects and 1.47 GW for photovoltaics.

Several wind farms under construction

According to the International Renewable Energy Agency (IRENA), Romania had just under 3.1 GW in wind power capacity in operation at the end of 2024.

Eurowind Energy built the turbines earlier this year at its Pecineaga wind park. Greece-based Public Power Corp. (PPC) is supposed to connect its Deleni facility to the grid before the end of the year.

OX2 is building the Green Breeze wind farm as the turnkey contractor for the investor, Nala Renewables.

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July 31, 2025
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Montenegro’s EPCG, NTE Energy sign memorandum of understanding

Power utility Elektroprivreda Crne Gore and Norwegian company NTE Energi AS have signed a memorandum of understanding confirming their mutual commitment to intensifying cooperation in the renewable energy sector in Montenegro.

The memorandum of understanding envisages the exchange of information, coordination of activities, and consideration of specific projects through joint venture Zeta Energy, established by state-owned Elektroprivreda Crne Gore (EPCG) and NTE Energi.

Zeta Energy operates small hydropower plants Glava Zete and Slap Zete, operational since 2021.

Bulatović: The MoU is an important step in EPCG’s ongoing transformation

The memorandum was signed by EPCG’s CEO Ivan Bulatović and NTE Energi’s CEO Inge Forseth.

According to Bulatović, the focus of the cooperation between the two companies will be the development of the hydropower potential of the rivers Ćehotina, Ibar, and Morača, with the possibility of expanding it to other renewable energy sources.

In the search for stable partnerships and the development of domestic renewable capacities, the memorandum represents a significant step forward in EPCG’s transformation, Bulatović asserted.

In his words, collaboration with a renowned company like NTE Energi aligns with EPCG’s goals.

Forseth: Zeta Energy provides a platform for implementing concrete projects

Inge Forseth, NTE Energi CEO, underlined that his company has an extensive track record in energy and decarbonization. He described Montenegro as an attractive market for sustainable energy development.

By signing the MoU, the two firms are opening a new chapter in their cooperation, he stressed.

Montenegro has enormous natural potential, and Zeta Energy serves as a platform to implement concrete projects for the benefit of the local community and partners, according to Forseth.

EPCG has four HPPs in the pipeline

EPCG recently said it planned to include an international partner in the development of the Komarnica hydropower project. The company cited the experiences of Norway, Austria, and France.

The company has four hydropower projects in the pipeline: Komarnica, Kruševo, Ćehotina, and Sutorina. The first two are the most advanced. Kruševo and Ćehotina could be implemented with EDF.

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July 30, 2025
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Sunotec, Sungrow sign 2.4 GWh battery storage agreement

China-based Sungrow and Bulgarian-German company Sunotec have agreed to install 2.4 GWh of battery energy storage systems (BESS) in Europe.

Sunotec and Sungrow have signed a strategic agreement to deploy 2.4 GWh of battery energy storage systems (BESS) across multiple solar power projects in Europe, according to Sunotec.

The 2.4 GWh of energy storage capacity will support grid stability, enable better renewable energy integration, and enhance the reliability of solar parks developed and constructed by Sunotec throughout Bulgaria and wider Europe.

The portfolio includes several large-scale projects across Bulgaria, which will serve energy storage needs, the update reads. Some of the projects in the pipeline will be supported by funds under Bulgaria’s RESTORE national support program.

Velichkov: The next chapter of clean energy

Sungrow intends to supply its industry-leading PowerTitan 2.0 BESS, recognized globally as a top-tier solution for utility-scale applications, while the string inverter SG350HX-20 and Sungrow’s MVS will be used for a hybrid project (PV and BESS) in the portfolio. It would be the first BESS project in Bulgaria with Sungrow technology.

“The global energy transition depends not only on how much renewable power we produce, but on how intelligently we manage and store it,” Sunotec CEO Kaloyan Velichkov said.

The partnership with Sungrow, in his words, reflects shared ambition to lead the next chapter of clean energy – by building resilient, storage-enabled infrastructure that brings stability, sustainability, and scale to markets across Europe and beyond.

Gkinis: The deal is a cornerstone of the two companies’ mission to accelerate clean energy deployment in Bulgaria and Europe

According to Anastasios Gkinis, Regional Director of Sungrow for CEE, SEE and CIS, the collaboration with Sunotec is a cornerstone of his company’s mission to accelerate clean energy deployment in Bulgaria and across Europe.

“Combining Sungrow’s cutting-edge energy storage technology with Sunotec’s execution excellence, we create a powerful force to redefine the energy landscape in Bulgaria and support the region’s transition to a sustainable energy future,” he stressed.

Sunotec has delivered over 650 solar projects with a total installed PV capacity of 11 GW. As of December 2024, Sungrow has installed 740 GW of power electronic converters worldwide, the update reads.

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July 30, 2025
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Two small hydropower turbines to be integrated into Sofia water supply lines

Veolia received a green light from Bulgaria’s capital city to install two hydropower generators within the city’s major water supply lines. The system is envisaged to generate 12 GWh of electricity per year.

Mostly owned by local authorities and underfunded, water and sewerage utilities in Southeastern Europe are struggling to provide enough drinking water and even to remain financially stable. They are under pressure from the effects of global warming and volatile electricity costs. After a water supply firm in Bansko in southwestern Bulgaria installed a miniature in-pipe hydropower generator, the solution sparked interest throughout the country.

Sofiyska voda, Veolia’s subsidiary that produces drinking water and manages wastewater for the capital city, is about to deploy the technology. In-pipe hydropower systems could play a part in decarbonization and energy efficiency as they are simple and don’t harm the environment. Such devices utilize the flowing water’s kinetic and potential energy and excess pressure – otherwise it would be released in the form of heat through a valve and wasted.

Making Sofia sustainable, energy-efficient, modern European city

Sofia Mayor Vasil Terziev and Country Director of Veolia for Bulgaria, Greece and Albania Francois Debergh signed a memorandum of cooperation for the construction of two small hydropower plants along the city’s trunk water mains.

Earlier, the Sofia Municipal Council approved the findings of a joint working group that explored the possibilities for the investment.

“Our goal is to work consistently for making Sofia a sustainable, energy-efficient and modern European city. One of the key priorities in our vision for development is the use of renewable energy sources. Therefore, among the important fields in which we are working is the construction of small hydropower plants that will allow our city to generate clean electricity locally – with care for nature,” said Mayor Vasil Terziev.

Sofia has been planning in-pipe hydroelectric systems for more than two decades

Such facilities will help reduce the carbon footprint of the capital city and improve the management of water resources, according to the company and the Sofia Municipality, also known as Stolichna (capital) Municipality. They added that renewable energy investments are contributing to the city’s efforts toward energy independence and climate neutrality.

“The project is an example of how the existing infrastructure can be best utilized for clean energy production. After commissioning, the plants will produce approximately 12 GWh of renewable energy per year, which will account for additional annual savings of over 8,000 tonnes of CO2 emissions. The memorandum is fully aligned with Sofia’s commitments to climate neutrality and Veolia’s participation in the NetZeroCities initiative,” Debergh stated.

Sofiyska voda utility striving for energy independence

Sofiyska voda’s wastewater treatment plant in Kubratovo has been energy independent since 2015. It produces biogas from the sludge separated in the process. The parent company stressed that a pending solar power project would make Sofiyska voda the first energy-neutral water supply and sewerage operator in the region, among only a few on the global scale.

The local authority in Sofia recalled there was an idea already in 2003 for eight hydropower facilities on the water supply lines.

Another alternative hydroelectric project was recently unveiled in northwestern Bulgaria. With the ambition to build several hydroelectric plants on pontoons on the Danube river, a local company intends to install a 20 kW pilot facility in Vidin.

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