[REVISION HISTORY]

Croatia-Slovenia environmental and development disputes

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2026-10-29 17:27 UTC → 2026-10-30 09:49 UTC · added ~~removed~~

Tensions between Croatia and Slovenia have emerged regarding infrastructure and environmental management. In Croatia, investors for the Marina Resort Cavtat have defended the project as a legal, strategic investment aligned with national tourism strategies. Meanwhile, in Slovenia, the Agraria cooperative is navigating administrative and market challenges to rebuild a commercial facility in Lucija following a 2024 fire. Conflict has escalated regarding the Mokrice hydroelectric power plant on the Sava River. The Croatian Ministry of Environmental Protection and Green Transition has formally opposed the Slovenian-led project, citing risks to groundwater levels and the drinking water supply for the Zagreb metropolitan area. Croatian authorities expressed concerns over riverbed erosion, damage to Natura 2000 protected areas, and disrupted fish migration, arguing that the ecological costs of the Slovenian energy project will disproportionately affect Croatia. In October 2026, the Slovenian government approved a decision to advance the Mokrice project. The developer, Hidroelektrarna na Spodnji Savi (HESS), stated that construction could begin as early as 2027, assuming no further legal proceedings arise. HESS claims the plant will provide renewable electricity for over 30,000 households and improve flood safety in the lower Posavje region, noting that the project involved cross-border consultations. Despite these claims, the plant remains a point of contention due to its proximity to the border, located only 500 meters from the Croatian side. Some experts suggest the Slovenian project could potentially be complemented by Croatia’s planned Zaprešić multi-purpose hydro-technical system to regulate river flow.

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