In the evolving landscape of South-Eastern Europe’s energy sector, gas-fired power generation has emerged as a critical yet contentious component of electricity stability. While its role in system balancing is widely recognized, the rising costs, environmental concerns, and geopolitical implications surrounding gas use have sparked significant debate among policymakers and industry stakeholders.
The reliance on gas as a balancing asset reflects a broader structural shift in the region’s energy dynamics. With coal and lignite plants experiencing reduced operational capacity and hydropower increasingly unreliable due to climate variability, gas plants are increasingly called upon to provide flexibility. They are not necessarily the most economical option but are favored for their rapid response capabilities during periods of energy scarcity.
Gas’s influence on market pricing is noteworthy. In times of tight supply, gas-fired units can drive prices into the €150–250/MWh range, influenced by fluctuating fuel costs and carbon pricing. During extreme market stress—when imports are limited and renewable energy sources underperform—prices can surge even higher. Such volatility highlights the challenges of an inflexible system where a few critical hours can disproportionately affect annual revenues for gas plants.
Despite their importance, many gas facilities operate at low utilization rates, often below 30% annually. This paradox raises questions about the sustainability of these assets in energy markets that do not adequately compensate for their crucial balancing role. Consequently, many gas plants rely on state support or capacity payments to remain viable within vertically integrated utility structures.
From an economic standpoint, gas plants in this region increasingly resemble insurance mechanisms rather than traditional power generation assets. Their primary value lies in their availability during peak demand rather than consistent output, prompting a shift in discourse from “how much gas do we need?” to “how do we fund access to gas when necessary?” This distinction is critical as conventional energy-only markets struggle to reward such insurance-like value.
The geopolitical landscape further complicates the situation. South-Eastern Europe remains heavily reliant on imported gas supplies, whether through pipelines or liquefied natural gas (LNG). This dependence introduces inherent price volatility and supply risks into electricity pricing structures. Even with national policies aimed at reducing reliance on gas, regional market coupling ensures that fluctuations in gas prices impact neighboring countries simultaneously.
Additionally, rising carbon prices contribute another layer of complexity. As carbon costs escalate, they can exacerbate price volatility during critical supply constraints, intensifying political resistance against natural gas despite its essential role in maintaining system stability. The paradox is clear: as the energy mix becomes cleaner overall, the marginal cost of balancing power can increase significantly.
The alternatives to gas for balancing are currently insufficient. Energy storage solutions within South-Eastern Europe remain limited compared to actual needs, and demand response mechanisms are still underdeveloped, particularly in industrial sectors. While cross-border balancing efforts are improving, they face challenges from grid constraints and uneven integration across regions. In this context, natural gas continues to be the only scalable option capable of providing immediate responsiveness during system stress events.
The stakes are high regarding how gas capacity is managed moving forward. Prematurely removing or inadequately compensating for this capacity could lead to increased occurrences of extreme price fluctuations and necessitate emergency interventions. Conversely, an over-reliance on gas exposes the energy system to potential fuel supply disruptions and carbon market shocks. A balanced approach involves recognizing gas as a transitional asset whose significance will gradually diminish as alternative flexibility resources develop.
Achieving clarity in policy is essential for optimizing the role of gas within the energy landscape. Gas plants cannot be expected to thrive solely on market revenues nor should they be confined to baseload operations without adequate compensation mechanisms. Strategic reserves and availability payments could align incentives more closely with system requirements if designed to promote flexibility rather than fossil fuel dependency.
The political sensitivity surrounding natural gas adds another layer of complexity to its implementation within energy strategies. Public discussions often frame reliance on gas as indicative of failures in decarbonization efforts rather than highlighting it as a symptom of incomplete flexibility infrastructure. This narrative risks diverting necessary investments away from enhancing system resilience and stability.
Financially, ensuring adequate gas balancing capacity could impose significant costs—potentially hundreds of millions of euros annually—when considering maintenance and associated risks. However, these expenditures must be balanced against the potential economic fallout from uncontrolled price spikes and industrial disruptions that could arise from insufficient capacity.
In summary, while the role of natural gas in South-Eastern Europe’s energy transition may be diminishing over time as alternative resources expand, it remains indispensable in the near term. The region’s electricity systems must acknowledge this reality while strategically managing its integration into broader energy frameworks to avoid exacerbating volatility.
