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Nepal surveys hydropower potential using LiDAR

Kathmandu, Nepal: The Nepal Electricity Authority (NEA) commissioned LiDAR-based surveying for six reservoir type projects in the country. This is the first time that the hydropower is being surveyed using LiDAR technology. The Ministry of Forests and Soil Conservation, Nepal, has already used this technology to map the forest area of the country and the data received by using this technology is being processed.

“We have found this technology very useful for the country like Nepal with difficult terrain and with reservoir projects cover large areas. We are going to use this for our reservoir projects,” said Lilanath Bhattarai, Director, Project Development Department, NEA. Bhattarai revealed that the survey would cost NPR 4 crore (NPR: Nepalese rupee). Fourteen international companies expressed interest in this project.

The survey would be done for Tamor (530 MW), Budhigandaki (600 MW), Dudhkoshi (500MW), Upper Seti (127 MW), Uttar Ganga (250MW) and Kaligandaki-2 (660 MW).

The LiDAR technology, according to the experts, can provide very reliable data on the terrain, forest cover, water bodies, and other infrastructures that could be used for the proper planning of hydro projects.

The Ministry of Irrigation had used this technology for the first time in irrigation sector last year in Bheri Babai diversion project. “Very reliable aerial photographs are obtained and it could be done in very short time that will be helpful to plan the projects in short time in detail,” said Dr. Raghunath Jha, expert on LiDAR technology.

There are no reservoir type projects in the country except Kulekhani and the Ministry of Energy has been working to develop large reservoir project that is needed to end power cut in the country. “Among these six projects, Upper Seti is under detail study phase whereas remaining five are on the feasibility study phase. We are in desperate need of energy so this technology may help to develop projects faster,” added Bhattarai.

Source: www.thehimalayantimes.com