Monthly output and production target
The jointly owned Slovenian-Croatian Krško nuclear power plant generated 497,404 MWh of net electricity during the reported month. This was slightly below the 500,000 MWh monthly production target. Output was about 0.5% under plan, compared with 505,827 MWh in the corresponding previous period.
In that earlier period, production exceeded the same target by roughly 1.2%. The plant’s reported performance therefore reflected a small gap against the planned monthly level rather than a large deviation from target.
Technical availability and capacity factors
Krško reported full technical availability despite the shortfall versus the monthly plan. Both availability and capacity factors were stated at 100%. No technical problems were reported as affecting operation during the period.
This information indicates that the under-target generation was not linked to technical outages or reduced operational capability as reflected in the plant’s availability reporting.
Role in regional baseload supply
Krško remains a critical baseload electricity source for both Slovenia and Croatia. Its annual production corresponds to roughly 20% of Slovenian electricity consumption and around 16% of Croatian demand. With those shares, relatively small changes in reactor availability can have an outsized impact on regional balances.
The modest shortfall against the monthly plan therefore did not point to a mechanical reliability issue based on the reported availability and capacity factor data.
Environmental constraints during summer heat and low flows
Attention around Krško has increasingly focused on environmental operating constraints during periods of extreme summer heat and low river flows. In such conditions, cooling requirements can force generation reductions even when the reactor remains technically available.
This distinction is increasingly relevant in European nuclear markets as high summer temperatures expose thermal generation assets to hydrological and cooling-water constraints rather than conventional equipment outages.
