January 2023 has been marked as one of the coldest months in a decade, as reported by the Slovenian Environment Agency. This significant drop in temperatures has led to a notable surge in electricity demand across Slovenia. The most striking instance occurred on January 8, when subzero temperatures resulted in an unprecedented peak in consumption between 8 and 9 AM.
During this month, total electricity consumption from the transmission network reached approximately 1,271.8 GWh, reflecting a substantial increase of 12.8% compared to January 2025. Furthermore, actual demand surpassed initial balance forecasts by 11.7%, indicating widespread growth across all monitored consumer categories.
The primary contributor to this increase was the performance of distribution companies, which accounted for the majority of the electricity withdrawal at 1,165 GWh. This figure represents a year-on-year increase exceeding 13%, significantly outpacing earlier projections by over 14%. Additionally, large direct consumers raised their electricity usage to 69.8 GWh, marking a rise of 10.6% from the previous year. Notably, the pumped-storage hydropower facility Avce also ramped up its electricity intake for pumping operations to 37 GWh, an annual increase of more than 8%.
This data underscores the heightened sensitivity of Slovenia’s electricity system to winter weather conditions, where colder temperatures rapidly translate into increased network demand. As such fluctuations in consumption patterns continue to emerge, they pose challenges and considerations for energy management and regulatory frameworks within the region.
