Kalai-II Hydroelectric Project

Kalai-II Hydroelectric Project is a significant development in Arunachal Pradesh, both in terms of energy production and its potential environmental impact.

1. Key Features of the Project:

1. Capacity & Location:

   • 1,200 MW capacity, which is substantial and will contribute a major share to the state's power generation.

   • Located on the Lohit River, a tributary of the Brahmaputra River in Anjaw District, Arunachal Pradesh, a region with significant hydropower potential.

   Infrastructure Details:

   • The project is designed as a run-of-river with pondage type. This design minimizes the impact on river ecosystems while ensuring power generation by storing some water during periods of high flow.

     The project will include major infrastructure such as a concrete gravity dam, diversion tunnel, intake tunnel, and underground powerhouse complex, indicating the scale and technical complexity of the project.

   Hydropower Capacity:

   • The hydro reservoir capacity is planned at 318.8 million cubic meters, which gives a good idea of the scale of water management involved in the project.

   • 6 turbines, each with a 190 MW capacity, for a total of 1,200 MW. This will contribute significantly to India's renewable energy resources.

   Environmental and Regulatory Process:

   • The Arunachal Pradesh State Pollution Control Board (APSPCB) conducted a public hearing for environmental clearance, which is an important part of the project’s regulatory and environmental review process.

   • This step ensures that local communities, stakeholders, and environmental experts can provide input before the project moves forward.

2. Potential Impact:

• Economic: The Kalai-II project could significantly boost the local and regional economy by providing power for industrial and residential use.

• Environmental: Given its location in a sensitive ecological region, there will likely be concerns related to the impact on local biodiversity, water quality, and the livelihoods of communities dependent on the river.

• Energy Security: The project supports India's broader goal of increasing renewable energy capacity and reducing reliance on fossil fuels.