What Happened
- The Union Cabinet approved two major hydroelectric projects in Arunachal Pradesh with a combined investment of over Rs 40,175 crore, positioning the northeastern state as a key hydropower hub.
- The Kamala Hydro Electric Project (1,720 MW) on the Kamala river in Kamle, Kra Daadi, and Kurung Kumey districts is estimated to cost Rs 26,069.50 crore, to be built in 96 months, generating approximately 6,870 million units (MU) of electricity annually; implemented through a joint venture between NHPC Ltd and the Arunachal Pradesh Government.
- The Kalai-II Hydro Electric Project (1,200 MW) on the Lohit river in Anjaw district is estimated to cost Rs 14,105 crore, to be completed in 78 months, generating 4,852.95 MU annually; implemented through a joint venture between THDC India Ltd and the Arunachal Pradesh Government.
- Combined capacity: 2,920 MW; combined annual generation: ~11,723 MU.
- The projects include significant ancillary infrastructure: ~196 km of roads and bridges (Kamala) and ~29 km of roads and bridges (Kalai-II), boosting connectivity in remote northeastern districts.
Static Topic Bridges
Hydropower Potential of India's Northeast
India's northeastern states possess the country's largest untapped hydropower potential, estimated at over 63,000 MW — approximately 40% of India's total hydropower potential. Arunachal Pradesh alone holds an estimated 58,160 MW of hydropower potential across five major river valleys: Kameng, Subansiri, Siang, Lohit, and Tirap. However, only a fraction has been harnessed due to difficult terrain, ecological sensitivities, and infrastructural challenges.
- Northeast region share of India's hydropower potential: ~40%
- Arunachal Pradesh's identified potential: 58,160 MW
- Key ongoing/planned projects: Subansiri Lower (2,000 MW), Dibang Multipurpose (2,880 MW), Etalin (3,097 MW)
- The Pasighat Proclamation (2007) identified northeastern hydropower as a national energy security priority
- Challenges: Seismically active region, forest cover, inter-state water disputes, tribal land rights
Connection to this news: The Cabinet approval of the Kamala and Kalai-II projects is part of a strategic push to convert the northeastern hydropower potential into actual generation capacity, with the dual objective of national grid stability and regional infrastructure development.
Hydropower as Renewable Energy — Classification and Role
Hydropower is classified as renewable energy under India's renewable energy policy. Large hydropower (above 25 MW) was officially classified as renewable by the Ministry of New and Renewable Energy (MNRE) in 2019, enabling large hydro projects to count towards renewable purchase obligations (RPOs). Hydropower provides dispatchable (on-demand) power, which balances the intermittency of solar and wind energy.
- Large hydro classified as renewable: March 2019 policy decision
- India's installed hydro capacity (large hydro as of March 2026): 51.41 GW
- India's total installed non-fossil capacity (March 2026): 283.46 GW
- Hydropower's unique advantage: Pumped storage hydro can serve as grid-scale energy storage
- RPO (Renewable Purchase Obligation): States must source a defined % of electricity from renewable sources
- NHPC: National Hydroelectric Power Corporation — central PSU for large hydro
- THDC India Ltd: Tehri Hydro Development Corporation — another central PSU for hydro projects
Connection to this news: The Kamala and Kalai-II projects will add 2,920 MW of dispatchable renewable capacity, directly contributing to India's 500 GW non-fossil energy target by 2030 and providing stable base-load power to complement solar and wind.
Environmental and Tribal Rights Concerns in Hydropower Projects
Large hydropower projects in northeastern India are subject to complex regulatory clearances: Forest Clearance (under Forest Conservation Act 1980), Environmental Clearance (under Environment Protection Act 1986 and EIA Notification 2006), Wildlife Clearance (if near protected areas), and consent from tribal communities (under Forest Rights Act 2006 and PESA 1996 in scheduled areas). The National Green Tribunal (NGT) also plays a role in reviewing ecological impacts.
- Forest Conservation Act 1980: Requires central government approval for diversion of forest land
- Forest Rights Act 2006: Recognises rights of forest-dwelling Scheduled Tribes and other traditional forest dwellers
- PESA 1996: Panchayats (Extension to Scheduled Areas) Act — gram sabha consent required for projects in 5th Schedule areas
- EIA Notification 2006: Mandates Environmental Impact Assessment and public hearing for large projects
- Arunachal Pradesh is a 6th Schedule area (tribal self-governance), with unique land rights framework
Connection to this news: The Cabinet approval marks the political and regulatory green light for the two projects, but implementation will still require compliance with forest, environmental, and tribal rights frameworks — a key challenge for timely completion within the stipulated 78–96 months.
Key Facts & Data
- Kamala HEP: 1,720 MW; Kamle/Kra Daadi/Kurung Kumey districts; cost: Rs 26,069.50 crore; annual generation: 6,870 MU; completion: 96 months; JV: NHPC + Arunachal Pradesh
- Kalai-II HEP: 1,200 MW; Anjaw district; Lohit river; cost: Rs 14,105 crore; annual generation: 4,852.95 MU; completion: 78 months; JV: THDC India + Arunachal Pradesh
- Combined investment: Rs 40,175 crore; combined capacity: 2,920 MW; combined annual generation: ~11,723 MU
- Arunachal Pradesh hydropower potential: 58,160 MW
- Northeast India share of India's hydropower potential: ~40%
- India's large hydro installed capacity (March 2026): 51.41 GW
- Roads/bridges under Kamala: ~196 km; under Kalai-II: ~29 km