Dafnozonara Dam

Owner : Terna

Dafnozonara dam is a small hydropower plant located on the Aheloos river in western Greece.

The operator, Terna Energy SA, designed the dam with a fusegates spillway.

Compared to the basic design with a free overflow spillway, the reservoir is raised by 3.30m thus boosting the power production potential of the facility by 8.50 MW (increasing the reservoir storage capacity by 58%).

The fusegates system was selected over other spillway control systems for its cost-effectiveness and its low maintenance requirements.

This project also confirms the potential of the fusegates system when applied to improved hydroelectric production.

Greece
Date of completion
2010
Performance
Increase storage capacity
Fusegate type
Straight
Number
9
Height
3.30 m
Width
4.22 m