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Energy efficiency, renewables in rural communities in Serbia’s Zlatibor region

Author: Stevan Vujasinović

The population in rural areas in the municipalities of Priboj, Čajetina and Arilje in Serbia have been heavily affected for years with frequent and prolonged interruptions in electricity supply. The interruptions not only disturb everyday life but they also substantially hinder the development of family businesses, especially in tourism and agriculture. However, solutions do exist.

Regional Development Agency Zlatibor almost simultaneously marked World Energy Efficiency Day (March 5) and International Women’s Day (March 8) last week. On the occasion, it organized “energy discussions” with members of women’s associations in rural areas of these municipalities, and the main topics were energy efficiency and renewable energy sources for rural households.

The Zlatibor mountain is one of Serbia’s main tourist and skiing resorts. It partly spans the territories of Priboj, Čajetina and Arilje.

Energy needs and challenges in rural households

“We are without power for several hours at a time in the winter. It is not only discomfort, but a serious problem for heating and preserving food, and especially for us who have guests in rural tourism”, said one of the participants at a discussion in Čajetina. The event gathered the members of the Čajetina Rural Women’s Association and Zlata association.

It became clear from the discussions that there is great interest in installing solar panels, among private households as well as hospitality facilities. However, the access to these technologies is often difficult because of high initial costs and complex procedures for obtaining subsidies, which despite growth in the available volume for the purpose still don’t meet all the existing demand.

High initial expenses and complex procedures for obtaining subsidies make the availability of solar panel installations more difficult

The problem is exacerbated by the fact that many houses in the villages were built illegally, making it more difficult to access energy efficiency subsidies. Besides, the calls are too often only accessible for the beneficiaries that already have initial capital to invest, while the village population often doesn’t know about them.

The Municipality of Čajetina acknowledges the significance of energy efficiency. Last year it issued a public call for cofunding energy efficiency measures in family houses and apartments. However, targeted support for users with the vulnerable energy buyer statuses still hasn’t been provided. Assistance could additionally improve the availability of these measures to the wider population, and in fact the very people who need help the most.

Photo: Members of the Čajetina Rural Women’s Association and Zlata association (Miloš Radojević)

Possibilities for using renewable energy sources

One of the key conclusions of the discussion was that solar panels and heat pumps can significantly improve the situation. Aleksandar Macura from RES Foundation pointed out that the law already enables households to produce their own energy and exchange it with state-owned power utility Elektroprivreda Srbije (EPS). “There are sufficient examples of good practice – around 2,500 households in Serbia already use rooftop power plants and work as buyers-producers,” Macura stated.

Buyers-producers are Serbia’s legal category for prosumers.

Nevertheless, solar panels still require initial investments of several thousand euros, which is an insurmountable obstacle for many. The participants in the discussion proposed solutions such as subsidized loans with delayed payment, in installments, to make the technology more accessible both to retirees and socially disadvantaged persons.

Assembling and energy communities

Another important aspect of the discussion was the possibility of establishing energy communities. In line with European regulations, Serbia is opening the space for joint production and use of solar energy within local communities.

It means any village council could install a solar power plant and distribute the energy among households. It would be especially useful for women running family businesses in agriculture and tourism, as it would provide them with a stable energy source without leaning on an unpredictable power distribution network.

Wood is traditional but inefficient energy source

Wood biomass usage still dominates in many rural households. Some said in Arilje: “Wood is irreplaceable” and “we believe in wood!” However, for people in villages, wood is almost never, even though it is the most accessible, never the most efficient solution for heating. It is partly because of moisture in the solid fuel, and mostly because of inefficient devices.

There are fewer and fewer people in the countryside, so it is getting more difficult and more expensive to timely obtain the wood felling and preparation service, even in one’s own forest. “We have been using wood for decades, but who today can afford quality dried wood? We often heat ourselves using wet wood, which only increases consumption and air pollution,” said one of the participants in an event in Arilje, describing her experience. It was attended by women from two associations: Sibirka and Ariljka.

Photo: Members of associations Sibirka and Ariljke (Miloš Radojević)

How to proceed?

It is clear that rural communities mustn’t be left behind in the energy transition process. Solar panels, energy communities and subsidies for more efficient heating are solutions that can bring concrete changes. However, the key to success lies in a greater accessibility of these solutions for all citizens, regardless of their financial situation or the place of residence.

Energy sustainability in rural communities is not just a matter of comfort but also of the survival and development of local communities. If we want villages to be vital and economically stable, it is necessary to facilitate a stable, sustainable and affordable energy source for them. Through smart investments, better subsidy organization and the development of energy communities it is possible to significantly improve the quality of life in these areas. In addition, additional training in the usage and maintenance of energy-efficient systems can contribute to a greater deployment of the technologies.

The energy discussions with the women of the Zlatibor county was organized within the project Improving the Use of Sustainable Energy in the Zlatibor region, financed by the German Organization for International Cooperation (GIZ) by order of the Government of the Federal Republic of Germany (Federal Ministry for Economic Cooperation and Development – BMZ).

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Bring clean heating and cooling to buildings: a circular energy economy in urban environments

Author: Thomas Nowak, EUSEW’s digital ambassador

Efficient heating and cooling is essential, yet much thermal energy goes to waste. What if we could avoid this thermal pollution and instead establish a circular energy economy in urban areas by recovering and recycling waste heat? Thermal networks as heat collectors and transport means, heat pumps as energy lifts, storage, and clean renewable energy sources can turn this dream into reality today.

Clean heating and cooling in cities is not happening

As the climate crisis worsens and urban populations grow, cities face increasing pressure to improve infrastructure and services. Cities need to be made more resilient against extreme weather incidents and heat waves. The use of fossil energy must be replaced by clean alternatives. This is not only a response to climate change, but also an obligation codified in EU law, notably the EU Energy performance of buildings and the Renewable Energy Directives.

The symbiosis of heat pumps, low temperature energy grids and the use of renewable electricity/heat provides a solution.

Low temperature thermal networks to unlock “the energy chest” of cities

Traditional district heating and cooling distributes high temperature thermal energy generated in central plants to its clients. Even using insulated pipes, some energy is lost in the distribution. Changing from central to decentralised networks and reducing operating temperature avoids this disadvantage. Low temperature, multi-input-output networks connect all types of buildings requiring heating and cooling. They collect waste heat from many different sources (e.g. industrial processes, offices, data centres, or public infrastructure) and distribute it where it is needed.  Heat pumps raise the temperature to the required level at the point of demand.

Photo: The symbiosis of heat pumps, thermal energy grids and multiple energy sources for clean heating and cooling of apartments and buildings in cities. Source: Qvantum Industries
© Qvantum Industries AB

Heat pumps for clean thermal energy

Heat pumps extract heat from a source (air, water, ground or a thermal network), lifting it to a higher temperature level to provide heating. At the same time the source is slightly cooled. Heat pumps always provide useful heating and cooling and it depends on the system design which of these services can be used.

Connecting the many energy users and (waste) heat providers in a city through a thermal network and adding heat pumps of different types and capacities in apartments and buildings (see circles) enables the collection of waste heat and highest heating and cooling efficiency. One user’s waste heat becomes another users heat source (see figure 1).

Multiple benefits for cities

The benefits for cities of transforming their heating and cooling infrastructure are plentiful.

  • Replacing fossil fuels with clean energy reduces CO₂ emissions and air pollution, leading to better air quality.
  • Collecting waste heat from cooling limits the heat island effect in cities. Buildings equipped with cooling help citizens withstand heat waves. Cities and citizens are more resilient to already observable climate change.
  • Storage tanks and the energy grid itself operate as thermal battery, balancing the electric grid.
  • Local energy sources, used by European technology solutions and designed and installed by a European workforce, help Europe become largely independent of fossil energy.

Breaking barriers to adoption

Implementing heat pump technology and thermal networks faces challenges. Upfront investment costs, regulatory hurdles, and limited public awareness can slow progress. Cities and policymakers should incentivise modern heat pump-based heating and cooling by making deployment easy and economically attractive. Cities should make thermal networks part of their public waste heat collection infrastructure.

Convincing humans is also key. Campaigns explaining policy, highlighting the benefits of clean heating and cooling and explaining how end users will be supported in their decision making will create trust and accelerate adoption by decision makers.

A path to sustainable cities

Urban heating can become decarbonised, efficient and sustainable while creating cleaner, more affordable, and more resilient communities. The technology exists, its potential is enormous. Let’s make use of it. Clean heating and cooling is not just a choice – it is the cornerstone of Europe’s energy and climate policy.

This opinion editorial is produced in co-operation with the European Sustainable Energy Week 2025. See ec.europa.eu/eusew for open calls.

Disclaimer: This article is a contribution from a partner. All rights reserved.

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Building resilient cities: how to align competitiveness and sustainability in Europe’s energy transition?

By Filipe Araùjo, Deputy Mayor of Porto, Portugal and Vice President of Energy Cities,one of EUSEW partner organisations

With the new EU Institutions taking office, it seems that the main discourse has shifted from the EU Green Deal to competitiveness. This new narrative presents both a challenge and an opportunity for European cities. We want our territories to prosper, but this can’t happen at the expenses of our health and safety.

Resilient local economies for a competitive Europe

A city that is thriving is a place where there is community wealth: the needs of its inhabitants are met, preferably by local economic actors. This contributes to reinforcing the local economic system, the social bonds and overall help withstand crisis situations. Resilient local economies are a precondition to EU’s competitiveness.

This community wealth approach applies to many sectors, but I believe it’s quite effective when it comes to energy. Nowadays, very few are questioning the need to have more renewable energy fed into the grid, not only to fight climate change, but also to ensure everyone (businesses and citizens alike) has access to energy at a relatively stable and affordable price, no matter the geopolitical context. But if we want to speed up RES deployments, we need to ensure everyone is on board. Not in my backyard behaviours (NIMBY) are still a reality many local leaders are confronted with. According to our experience in Porto, local ownership of renewable energy is a way for cities to address NIMBY, but also to help tackling energy poverty and contribute to thriving local economies.

Community energy addressing energy poverty in Porto

That is why Porto is planning to include all municipal social housing, around 12% of buildings in the municipality, in community energy projects. 6MW of solar power is going to be installed, providing clean electricity to vulnerable families at a lower price.

While some of the projects are still being tendered, some are already in the implementation phase. For example, the energy community in the Agra do Amial district, active since May 2024, is already providing its members with renewable energy, with around 50% of the energy generated consumed by vulnerable families

While our ambition is high, we can’t ignore the many challenges we are confronted with – some are common to many European municipalities. Cities frequently lack staff and financial resources to lead highly participatory process, often involving citizens who are very difficult to engage (such as vulnerable households) or even to provide information to their community on energy related issues. This, combined with the complexity of such topics, makes our work even more difficult.

In addition, burdensome administrative processes and challenging legal frameworks at national level can halt innovative projects and discourage citizens and small businesses from participating. When setting up Porto’s first energy community, it took us 2 years to get social housing units connected to the solar panels we installed.

Leveraging on local ecosystems for a more resilient Europe

Luckily, solutions do exist to ensure local communities can play their part to contribute to a more resilient and democratic Europe. Aside from ensuring legislation is properly transposed so that everyone across Europe can benefit from the same energy rights, we need capacity building programmes, develop local One Stop Shops to inform/engage citizens on the opportunities available to them and energy literacy programs.

For this to happen, cities will have to access finance, and the integration among the different initiatives at all levels that aim at increasing renewable energy deployment (and energy security) is fundamental. Another important aspect will be to ensure multilevel governance, so that cities can participate in the decision making around what concerns them, and not just been asked to implement.

In the coming period, the new European Commission is set to work on a new Citizens Energy Package, but also to develop a Clean Industrial Deal and reform the EU Cohesion Policy. This presents as a unique opportunity to align the EU approach to competitiveness with its energy and environmental targets, by establishing proper governance mechanisms and funnelling the necessary resources accordingly.

This opinion editorial is produced in co-operation with the European Sustainable Energy Week (EUSEW) 2025. See ec.europa.eu/eusew for open calls.

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Heliup wins European Solar Startup Award 2025 with solar panels 60% lighter than conventional ones

France-based Heliup has been awarded the Gold European Solar Startup Award 2025 for its Stykon solar PV panels for flat rooftops.

Following a successful online pitch, Heliup, Aevy and suena were nominated by the expert panel as finalists.

Yannick Veschetti, President and Co-founder of Heliup, Gautier Moulin, Co-founder and Chief Operating Officer of Aevy, and Felix Heimke, Senior Product Manager at suena, presented their work on stage at the SolarPower Summit 2025.

Yannick Veschetti stressed there is over four billion square meters of available large rooftop space in the European Union. Heliup wants to harness the potential of this available rooftop space and fast-track solar installations across Europe, he added.

Veschetti: The startup is committed to revolutionizing solar energy with lightweight solutions manufactured in Europe

The startup is committed to revolutionizing solar energy with lightweight solutions manufactured in Europe that unlock the potential of commercial and industrial rooftops, Veschetti pointed out.

According to the startup, solar panels have considerable weight which, combined with around 15 kilograms per square meter for the fixing structures, is not compatible with a large proportion of existing building roofs.

To address the issue, Heliup uses a patented CEA technology developed for over three years at France-based Institut National de l’Energie Solaire (INES).

The unique technology is based on the conservation of thin glass and on an innovative installation concept, the startup said.

The solar panel is 60% lighter than conventional panels

The Stykon range is intended for flat roofs, with an innovative, simple and quick installation system based on gluing the panel directly onto the roof’s waterproofing membrane. It is 60% lighter than conventional panels while maintaining the same level of performance and durability, Heliup added.

SolarPower Europe explained that Heliup’s panels are lightweight, at five kilos per square meter. They have an efficiency of 20% and are resistant to extreme weather conditions. The equipment is made in Europe and has an easy and fast installation process, the organization said.

“Only with these forward-thinking innovators can we strengthen Europe’s competitiveness and guarantee a swift energy transition,” SolarPower Europe CEO Walburga Hemetsberger stated.

The award jury panel comprised Jenny Chase, Solar Analyst at BloombergNEF; Stefan Müeller, Co-Founder, Shareholder and Board Member at Enerparc AG; Felix Krause, Managing Partner at Vireo Ventures; and Michael Schmela, Director of Market Intelligence at SolarPower Europe.

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Renewables equipment factory to contribute to just transition of coal region in Romania

Monsson Group is preparing to build a manufacturing facility in Petrila for renewable energy equipment, including robots that clean solar panels. The project received funding to contribute to the just transition of Romania’s coal region Jiu valley – Hunedoara.

An investment of nearly EUR 10 million in the first phase is underway in Transylvania, in the town of Petrila, economically devastated after the closure of a coal mine. The project is aimed at reviving the area with a factory for renewable energy equipment such as enclosures for battery energy storage systems, wiring and robots that clean photovoltaic panels.

Monsson Group revealed its facility would also manufacture gear for monitoring environmental parameters and tracking fauna in the area. The Sweden-based company has said 70% of the investment would be covered from Romania’s Just Transition Program which is in turn part of the European Union’s Just Transition Facility.

Romania is planning to prolong the operation of its coal power plants and mines for a smoother switch to renewable sources, in terms of electricity supply. However, such facilities are becoming less financially viable by the day all across the EU. Coal regions are facing economic blows from early shutdowns of power plants and mines.

First major private investment in Petrila

According to Monsson, the new factory would employ more than fifty people in the first phase. It expects to begin construction mid-year.

It is the first major private investment in Petrila, Mayor Vasile Jurca said. He said the project enables reskilling and sustainable development. The local authority provided the land for the factory. Romania has earmarked substantial funding for the construction of renewable energy equipment plants.

The second part of the plan is to install a 20 MWh battery energy storage system to provide system services to the national grid, followed by a 50 MWh unit.

Reskilling program underway

The group, which includes Wind Power Energy and its RenewAcad network of renewable energy training centers, established cooperation with the University of Petroșani in getting skilled workers. Monsson is one of the biggest renewable energy investors in the country.

Petrila is part of the Jiu Valley in Hunedoara county, Romania’s main coal region. It is located near Oltenia, the other coal complex, in the counties of Gorj and Dolj.

Notably, the Maritsa East 3 coal power plant in neighboring Bulgaria ceased operations yesterday again after it was briefly brought back online to maintain energy security.

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Montenegro’s TSO CGES achieves EUR 25 million profit in 2024

Montenegro’s transmission system operator CGES recorded a profit of EUR 24.8 million last year.

The net income of TSO CGES compares to EUR 35.7 million from 2023. In 2022, the company’s profit amounted to EUR 20.3 million, after EUR 16.9 million in the previous year.

President of the Board of Directors of CGES Aleksandar Mijušković noted in a statement to Mina news agency that the total since his appointment is almost EUR 100 million.

He recalled that the company’s operations are regulated by the Energy and Water Regulatory Agency of Montenegro (REGAGEN), pointing out that the profit is subject to revision, in line with the regulatory mechanism.

Implementation of visionary projects led to income growth

Implementation of crucial infrastructure projects, investments in new technologies, and improvement of work processes were the decisive factors for the success, Mijušković underlined.

In his words, conducting important, visionary projects has led to a significant increase in income from electricity transit. In addition, by applying new technologies and improving work processes, the company achieved a more efficient and reliable system with the lowest grid loss rate so far, despite a much higher transit and flow of energy through the system, Mijušković pointed out.

He added that good business results secure multiple benefits for shareholders and users of the transmission system in Montenegro. CGES’s results have contributed to lowering the transmission tariff paid by citizens and businesses, Mijušković said.

The company plans to continue the investments within its five-year plan, worth EUR 207 million. It envisages significant infrastructure projects.

The Trans-Balkan Corridor will facilitate market coupling with Europe

He singled out the Trans-Balkan Corridor among the largest infrastructure projects. Its completion will significantly increase the capacity for power transit from the Balkans to Italy.

It will enable coupling the Montenegrin electricity market with the Italian one and, with it, the single European electricity market, Mijušković said.

The green transition brought great challenges for the European power system, he stressed. The production of electricity from renewable sources cannot be controlled, so large, uncontrolled electricity flows began appearing in the system, threatening its stability, Mijušković said.

The issues can be effectively solved only by strengthening the internal grid and interconnections with neighbors, which CGES has envisaged in its plans, he asserted.