EcoLur
In the frames of “Support to SHPP-relating reforms through the dialogue of public and RA Nature Protection Ministry for Sustainable Use of River Ecosystems” the expert group visited “Yehegis” SHPP. It is located in Shatin Community’s administrative territory of Yeghegis River (river length of 47 km) in Vayots Dzor Region. The SHPP is exploiting "Elegis HPP" LLC. The findings of the monitoring are as follows:
- According to the certificate issued by the Public Services Regulatory Committee, estimated pressure – 44․5m, the estimated yield used by the SHPP is 2․2m3/s, projected capacity – 800 kW, the factual useful delivery of the electricity is 4.4million kWh, duration of license - 12.06.2003-12.06.2018, water usage permit for construction - 05.11.2013-05.11.2016.
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There are small differences in water intake and wastewater coordinates mentioned in water use permit.
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There is no water metering observation points in water intake point. According to “Elegis HPP” company which exploits SHPPs environmental flow 0.3 m3/s է. But the number of environmental flow is not mentioned in water use permit. According to the datas of "Calculation Centre" CJSC, “Yeghegis HPP” works 12 months.
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Irrigation water is carried out at the right side of “Yeghegis” SHPP, and for SHPP from the left side.
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There is no fish pass way and the existing structure, which resembles fish passway, (introduced as a concrete pipe) doesn’t correspond its goals.
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Some kinds of fish such as trout Salmo fario, Barbus cyri, and Capoeta Sevani (registered in the Red Book) occur in the lake.
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The SHPP junction area is ready.
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A fully automated Czech hydro aggregate of 660 kW power is located in SHPP building.
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The automat water level regulation system is missing in the water intake.
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The pipeline diameter is1000 mm and the length is 2250 m. At the beginning it is open by the shore of the river than it passing through the road and is covered.
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The entrance of pipeline fitted with barred gates.
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Household waste is not carried out.
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Garbage, collected because of light wind and rain will filled in the river.
- Percentage correlation of aggregate lenght (22758 meters) of 'Yeghegis 1' SHPP (according to the Public Services Regulatory Committee, length of derivation – 4000 meters), 'Yeghegnadzor' SHPP (according to project, length of derivation – 3250 meters, 54 meters), Yeghegnadzor 1' SHPP (according to project, length of derivation – 1220 meters), “Yeghegis-3” (length of derivation – 1391 meters), “Yeghegis -2” SHPP (length of derivation – 2138 meters), “Yegheg” SHPP (length of derivation – 1924 meters), “Goghtanik” SHPP (length of derivation – 1400 meters), “Yeghegis” SHPP (length of derivation – 2450 meters), “Tigran Mets” SHPP (length of derivation – 2691 meters), and “Khachi Qar” SHPP (length of derivation – 2240 meters) constructed on the Yeghegis River with the length of Yeghegis River makes up 48.42%.
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“Yeghegis” SHPP is located near the "Yeghegnadzor" State Reserve, which border passes through Yeghegis River.
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Deviations from the project are not mentioned, because the project’s expertise opinion is missing.
Proposals
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It is necessary to define the environmental flow rate by water use permission.
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It is essential to install metering devices and monitor the environmental flow.
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It is necessary to build a fish pass way to satisfy the vital needs of fish in the river.
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It is necessary regularly to carry out household waste.
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| "Yeghegis" small HPP and Yeghegis river, when water is low. |
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The material was developed in the frames of “Supporting reforms in the sector of small hydro power plants through enabling a dialogue between civil society and the Ministry of Nature Protection for sustainable use of river ecosystems” supported by UNDP/GEF Small Grants Programme". |
July 07, 2015 at 14:38