Author name: Nursen Syuleyman

Are Bulgaria’s wholesale electricity prices isolated? 

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The integration of European electricity markets is found on the principle that, in the absence of transmission constraints, wholesale electricity prices across bidding zones should converge. Under the EU Target Model and the market coupling framework promoted by the European Commission, cross-border capacity is allocated implicitly through price coupling, allowing electricity to flow from lower-price to higher-price areas until …

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More renewables = lower prices. But not more stable prices. 

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The increasing penetration of renewable energy sources (RES) in European electricity markets is commonly associated with lower wholesale prices. However, its implications for price stability remain ambiguous. Evidence from Bulgaria for 2025 indicates that while a higher RES share systematically reduces average day-ahead wholesale prices, it does not lead to lower price volatility; rather, it is associated with increased short-term price …

More renewables = lower prices. But not more stable prices.  Read More »

Why Is Electricity More Expensive in Bulgaria and Its Neighbours?  

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Over the past two years, wholesale electricity prices in Bulgaria and the wider South-Eastern European region have consistently been higher than in Central Europe. Net-Zero Lab has already analyzed the price divergence in 2025 (link). Many observers ask: Is the EU’s new flow-based market coupling system to blame?  The data tell a more complex — and more interesting — …

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Bulgaria vs. EU: Where Do Wholesale Power Prices Stand? 

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A comparison of day-ahead electricity prices across Europe for the whole of 2025 reveals a clear and persistent pattern: electricity prices in Bulgaria paid by non-household users are most often above the EU average, with deviations becoming especially pronounced during periods of system stress and, occasionally, during periods of oversupply.  Evidence of the latter occurred on 1st May …

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Co-Creating Industrial Decarbonisation: Turning European Ambition into National and Industrial Priority 

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Industrial decarbonisation is key to achieving the EU’s climate objectives, with the next decade representing a critical window for the rapid reduction of emissions from carbon-intensive industries. Against the backdrop of deepening structural challenges in energy-intensive sectors, the low-carbon transition is becoming not only a climate imperative but also a decisive factor for the long-term competitiveness and technological …

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New Analysis on Financial and Technical Support Mechanisms for Energy Communities Now Published

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A comprehensive new study developed as part of the collaboration between the Net-Zero Lab and Greenpeace Bulgaria sheds light on how local energy communities in Bulgaria can secure the funding and technical support they need to grow. The report “Analysis of Available Financial Mechanisms in Support of Energy Communities” maps out the current financial landscape …

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Bulgaria on the Map of Energy Innovation: Net-Zero Lab Presents New Report on Clean Technologies  

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Sofia, 21 October 2025 — The Net-Zero Lab at the Faculty of Economics and Business Administration, Sofia University “St. Kliment Ohridski,” organized a conference dedicated to accelerating the deployment of key low-carbon energy technologies in Bulgaria. The event brought together leading experts from academia, business, and government to discuss the challenges and potential of the …

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The Real Price of Electricity: Billions of Leva in Subsidies Remain Invisible on Household Bills

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The latest video by Net-Zero Lab, part of the educational campaign “Informed Consumer Choice” reveals the hidden cost of electricity and shows the steps households can take to benefit from the liberalized market. In the episode “The Real Price of Electricity and the Steps to Switching Suppliers” it is shown that behind the perception of …

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Nearly 30% of Bulgarian Households Are Energy Poor – Urgent Protection Measures Needed Before the Liberalization of the Electricity Market

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In the latest educational video from the “Informed Consumer Choice” series by Net-Zero Lab at the Faculty of Economics and Business Administration, Sofia University, energy expert Assoc. Prof. Teodora Peneva, PhD, from BAS discusses the challenges of energy poverty in Bulgaria and presents solutions inspired by European practice. Low incomes, high energy costs, limited creditworthiness …

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The “Informed Consumer Choice” campaign continues – Benefits and challenges of the liberalized electricity market

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On July 1, 2025, significant changes to the Electricity Trading Rules came into effect, marking another important step towards the full liberalization of Bulgaria’s electricity market. These changes will eventually impact 4.5 million households, giving consumers greater choice and control – but also raising new questions about how to make the best decisions in this …

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