The total assessed hydro power potential in the country is 1,66,454 MW. Large hydropower projects of cumulative capacity of 40,613 MW (27.95% of potential) (excluding Pumped Storage Projects) have been installed so far. In small hydro sector, a cumulative capacity of 4,647 MW (21.98% of total potential) has been installed.

The slow pace of small hydropower can largely be attributed to delay in getting forest clearances, and geological and hydrological uncertainties, etc. In large hydro sector, difficult terrain, interstate disputes, rehabilitation and resettlement issues, higher capital costs resulting in higher tariffs, long gestation period, delay in getting environmental clearance are the major factors which have resulted into slow growth.

Region/State Identified Potential
Small Hydropower
projects (projects of capacity upto 25 MW)
Large Hydropower Projects
(projects of capacity more than 25 MW) (excluding pumped hydro)
Northern    
Jammu & Kashmir and Ladakh 1707.45 13543
Himachal Pradesh 3460.34 18540
Punjab 578.28 971
Haryana 107.24 64
Rajasthan 51.64 483
Uttarakhand 1664.31 17998
Uttar Pradesh 460.75 664
Sub Total 8030.01 52263
Western    
Madhya Pradesh 820.44 1970
Chhattisgarh 1098.20 2202
Gujarat 201.97 590
Maharashtra 786.46 3314
Goa 4.70 55
Sub Total 2911.77 8131
Southern    
Andhra Pradesh 409.32 2341
Telangana 102.25 2019
Karnataka 3726.59 6459
Kerala 647.15 3378
Tamil Nadu 604.46 1693
A&N Islands 7.27 0
Sub Total 5497.04 15890
Eastern    
Jharkhand 227.96 582
Bihar 526.98 40
Odisha 286.22 2981
West Bengal 392.06 2829
Sikkim 266.64 4248
Sub Total 1699.86 10680
North Eastern    
Meghalaya 230.05 2298
Tripura 46.86 0
Manipur 99.95 1761
Assam 201.99 650
Nagaland 182.18 1452
Arunachal Pradesh 2064.92 50064
Mizoram 168.99 2131
Sub Total 2994.94 58356
All India 21133.62 145320