The energy market in South-East Europe (SEE) has experienced significant shifts in January, particularly regarding the role of Guarantees of Origin (GOs). These instruments have transitioned from mere compliance tools to critical components influencing the monetization of low-carbon attributes. While spot power prices are shaped by various factors including flexibility and market constraints, GOs are increasingly becoming a crucial asset for utilities and industrial buyers alike.
Structural Disparities in Low-Carbon Attribute Generation characterize the region. Bulgaria and Romania, with their substantial hydro and nuclear resources, produce an excess of GOs that surpass domestic demand. Conversely, Serbia and Montenegro face challenges due to fragmented registries and limited certification depth, resulting in a consistent shortfall of certified green attributes despite not experiencing physical power shortages.
The dynamics observed in January further highlighted this divergence. Although physical power prices surged during peak hours—reaching €200–300/MWh—GO prices remained stable. This indicates a decoupling between carbon scarcity and energy scarcity; the fluctuations in energy pricing were driven by congestion and flexibility rather than the availability of certified renewable or nuclear energy. Consequently, GO markets exhibited characteristics more akin to structural instruments rather than volatile commodities.
Hydropower was the main contributor to the GO supply across the Western Balkans, with Serbia, Montenegro, and Bosnia and Herzegovina generating most certifiable renewable output from hydro resources. These operators continued issuing GOs regardless of whether they dispatched water during peak periods or conserved it, demonstrating a clear separation between energy volatility on trading platforms like SEEPEX and attribute value monetization through GOs.
While wind and solar sources added incremental volumes to the GO pool, their contributions were limited in January due to seasonal factors. Corporate buyers are now increasingly discerning between “hydro-heavy” GOs versus those specific to wind or solar generation. This distinction is particularly relevant for multinational corporations aiming for precise matching of their energy consumption with renewable sources.
Nuclear-generated GOs emerged as a pivotal element within January’s market landscape. The significant issuance from Bulgaria and Romania’s nuclear fleets appeals to industrial clients seeking reliable clean power solutions capable of supporting 24/7 operations. Although nuclear is not classified as renewable, its GOs offer a stable alternative that can mitigate price fluctuations associated with renewable sources, thus capping potential price increases for renewable GOs.
This situation creates strategic implications for exporters as well. Bulgarian and Romanian utilities exporting physical power also provide options for sourcing GOs from their domestic registries. However, this reality has exposed a critical gap: physical imports do not inherently guarantee green attributes—an issue that industrial buyers must navigate amid growing environmental regulations.
Serbia’s positioning highlights this tension. While it serves as a central hub for electricity flows within SEE without facing systemic shortages in January, its reliance on hydro-based GOs fails to meet rising voluntary demand from export-focused industries. Consequently, Serbian companies increasingly depend on imported GOs—often sourced from Bulgaria or Romania—leading to price premiums that are disconnected from local power costs.
In contrast, Montenegro faces an even more pronounced challenge. Despite its reliance on hydropower resources, limited market size and registry liquidity restrict GO availability and trading capabilities. The price fluctuations observed during January did not significantly affect GO values but underscored a strategic vulnerability: even systems rich in renewable generation can struggle with certification if registry depth is lacking.
For corporate buyers navigating these complexities, January served as a reminder that volatility in spot power prices does not equate to opportunities within the GO market. Those who anticipated lower GO prices aligned with cheaper baseload days found themselves disappointed as long-term scarcity anchored GO pricing instead. A more effective strategy involves decoupling procurement processes for energy and GOs to manage risks independently.
This evolving landscape indicates that Guarantees of Origin are establishing themselves as an essential infrastructure within the energy market rather than mere accessories. As regulatory scrutiny intensifies surrounding emissions reporting and sustainability standards, the demand for reliable, traceable GOs will likely increase irrespective of fluctuations in spot power markets. Regions equipped with robust nuclear and hydro capabilities will continue to capitalize on these advantages while others may face structural premiums even when physical electricity supply is abundant.
The developments witnessed throughout January did not trigger a shock within the GO pricing structure; rather, they reaffirmed a crucial insight: the distinction between energy scarcity and origin scarcity has become an integral aspect of South-East Europe’s electricity economy moving forward.
