Nera (Danube) basin and it is not navigable. After the filling of the artificial Lake Đerdap, as a result of the Iron Gate I Hydroelectric Power Station which was finished in 1972, the mouth of the river into the Danube was flooded. In order to allow the optimal electricity production, the water level of the Nera at the mouth should not go below , while it must not exceed it if the flooding of the banks is to be avoided. Since the mid-1990s, there are significant problems in fixing the river's level, as the process is costly and complicated. In 2018, representatives
Piccola nera in Slovenia. According to Master of Wine Jancis Robinson, Piccola nera tends to produce light-bodied and lightly colored red and rosé wines. These wines often have very little aging potential and are usually meant to be consumed young soon after the vintage. Over the years, Piccola nera has been known under a variety of synonyms including: Cerni Klescec, Drobna Cernina, Mala Cerna (in Slovenia), Naimenska Slaska, Negra Tenera, Nera Tener, Nera Tenera, Petit Raisin and Plavi Klescec. Piccola nera Piccola nera is red Italian and Slovenian wine grape variety that is grown in the province of Trieste within the Friuli-Venezia