Itanagar, May 27 (PTI) The Arunachal Pradesh government on Wednesday signed an agreement with Greenko Demwe Power Ltd for developing the 1,750-mw Demwe Lower Hydroelectric Project, a statement said.
The agreement marks one of the largest hydropower collaborations undertaken with a private sector developer in the state, it said.
The Demwe Lower Hydroelectric Project will be developed on the Lohit river near Parasuram Kund and Brahma Kund, it added.
The project will have five generating units of 342 mw each, along with one unit of 40 mw. It is expected to generate approximately 7,326 million units of electricity annually, making a substantial contribution to the country's energy security, the statement said.
The project site enjoys strategic connectivity through Dibrugarh airport and Tinsukia station in Assam, it said.
The project has been designed as a major engineering and infrastructure initiative with a concrete gravity dam having a maximum height of 163.12 metres above deepest foundation and a total crest length of 474.35 metres, it said.
The reservoir at full reservoir level will have a storage capacity of 516.38 million cubic metres with a water spread area of approximately 1131 hectares. The project design includes a modern spillway system comprising surface ogee and sluice spillways with multiple gates to safely handle flood discharge, the statement said.
The project will feature an advanced hydropower infrastructure system, including six diversion tunnels, underground pressure shafts, and a large surface powerhouse located on the right bank of the Lohit river.
The powerhouse has been designed with Vertical Francis Turbines operating at a design head of 112 metres and a design discharge of 1729 cumecs.
The project is expected to provide major socio-economic benefits to the state through employment generation, infrastructure development, improved connectivity, and increased economic activity in the region.