The 1,000-MW Karcham Wangtoo Hydroelectric Project of Jaiprakash Power Venture Ltd (JPVL) has been registered with the United Nations Framework Convention on Climate Change (UNFCCC) for the benefit of carbon credits under the Clean Development Mechanism (CDM).

The JPVL expects to get carbon credits worth Rs 80 crore to Rs 100 crore per annum. The crediting period is from October 15, 2011, till October 14, 2021. It is the largest private sector hydroelectric project in the country constructed on the Sutlej river upstream the public sector Nathpa Jhakri project in Kinnaur district. It is designed to annually generate 4,261 million units of power.

It had been built almost three months ahead of schedule with a total investment of Rs 6,900 crore. It involved about 45 km of tunneling, including the largest underground de-silting arrangements in the world. It will provide 3.54 million tones of carbon dioxide reduction in a year.