Civil Insight: A Technical Magazine Volume 2 | Page 33

CIVIL INSIGHT 2018
Figure 7: Optimization of cost with e-fl ow
TEACHERS’ SECTION
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Figure 8: Optimization of cost with
capacity of hydropower
It can be derived from the aforementioned facts that when a proper and detailed analysis of the conditions
of e-fl ow, the economic impact they cause in generation of hydropower and the long term economic and
environmental affects and management cost, the environmental aspect comes to a priority.
In conclusion, it can be said that environmental consideration is of topmost priority while planning for the
sustainable hydropower development, moreover sustainable water resource development. The facts presented
previously indicate that the construction of dams have defi nitely altered the natural fl ow regime which is
evident by the case study of Kaudiyala, where the low fl ow conditions than the required have altered the
behavior and numbers of fl ora and fauna, chemical parameters and the socio-economic activities. Similarly, the
case study of Lete has shown that although the release of e-fl ow has decreased the direct economic benefi t
of the hydropower project, it is inevitable to account for the long-term benefi t and forehanded evaluation
of its economic advantage. The future of society and environment depends on what we account them for at
present. Therefore, accrediting environmental fl ow while developing the water infrastructure in the present
day will surely ensure the sustainability of the resources as well as the infrastructure in future for a long run.
REFERENCES
Gautam, K., Shrestha, A., Oli, B., A. P., & Shah, S. (2016). Hydropower Planning in Prospect to Environmental
Flow: A Case Study of Lete Storage Hydropower, Kaligandaki . Kathmandu University, Department of Civil and
Geomatics Engineering. Dhulikhel: Kathmandu University.
O’Keeffe, J., Kaushal, N., Bharati, L., & Smakhtin, V. (2012). Assessment of the Environmental Flows for the
Upper Ganga Basin . WWF-India.