Sector-wise Electricity Consumption 2008-09 to 2015-16:
(in Kwh per annum)
| Category | 2008-2009 | 2009-2010 | 2010-2011 | 2011-2012 | 2012-2013 | 2013-2014 | 2014-2015 | 2015-2016 |
| Agriculture | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Domestic | 56.20 | 58.40 | 57.97 | 82.77 | 78.98 | 83.98 | 78.93 | 74.96 |
| Commercial | 28.90 | 29.30 | 29.23 | 29.72 | 38.26 | 35.43 | 35.33 | 37.43 |
| Public Lighting | 2.60 | 2.60 | 2.60 | 2.30 | 0.43 | 0.35 | 0.29 | 0.15 |
| Temporary Supply | 0.10 | 0.10 | 0.15 | 0.30 | 0.09 | 1.61 | 1.36 | 1.16 |
| HT Industrial consumers | 57.50 | 59.20 | 58.39 | 71.63 | 91.76 | 97.11 | 110.49 | 126.30 |
| LT Industrial consumers | 1.20 | 1.90 | 1.31 | 8.63 | 1.15 | 1.15 | 1.37 | 1.34 |
| Bulk Supply | 13.50 | 14.50 | 13.35 | 13.21 | 16.23 | 17.74 | 20.98 | 23.37 |
| Outside State | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Total | 160.00 | 166.00 | 163.00 | 208.56 | 226.90 | 237.37 | 248.75 | 264.71 |
Source: Energy and Power Department, Govt. of Sikkim
Year-wise Energy Consumption, 2010-11 to 2014-15:
| Year | Energy Consumption (MU) | Population | Per Capita Consumption (in kWh) | |||
| Rural | Urban | Rural | Urban | Rural | Urban | |
| 2010-2011 | 130.54 | 69.17 | 480981 | 59870 | 271.41 | 1155.4 |
| 2011-2012 | 136.89 | 71.37 | 456999 | 153578 | 299.54 | 464.73 |
| 2012-2013 | 126.68 | 79.49 | 456999 | 153578 | 277.19 | 517.61 |
| 2013-2014 | 135.1 | 78.06 | 456999 | 153578 | 295.62 | 508.29 |
| 2014-2015 | 119.88 | 74.12 | 456999 | 153578 | 262.33 | 482.63 |
Source: Energy and Power Department, Govt. of Sikkim
Energy Generation of Sikkim, 2010-11:
| Sl. No. | Name of projects | Installed capacity (MW) | Gross Generation (MU) | Auxiliary Consumption (MU) | Net Generation (MU) | Remarks |
| 1. | LLHP | 2×6.00 | 24.195 | 0.0573 | 24.1374 | |
| 2. | JPH | 6×0.35 | 3.163 | 0.0342 | 3.1285 | |
| 3. | Rimbi-I | 3×0.20 | 0.165 | 0.0033 | 0.1613 | |
| 4. | Rimbi-II | 2×0.50 | 0.415 | 0.0023 | 0.4123 | |
| 5. | Rothak | 2×0.10 | 0 | 0 | 0 | Power house abandoned |
| 6. | Rongnichu | 5×0.50 | 0.854 | 0.0117 | 0.8423 | |
| 7. | Chaten | 2×0.50 | 0 | 0 | 0 | Power House abandoned |
| 8. | Meyongchu | 2×2.00 | 6.589 | 0.0054 | 6.5832 | |
| 9. | URHP | 4×2.00 | 0 | 0 | 0 | No generation due to failure of water conductor system |
| 10. | Kalez | 2×1.00 | 0.76 | 0.0042 | 0.7562 | |
| 11. | Lachung | 2×0.10 | 1.025 | 0.0123 | 1.0125 | |
| 12. | Rabomchu | 2×1.50 | 3.522 | 0.0089 | 3.5131 | |
| 13. | DPH Gangtok | 4×1.00 | 0.153 | 0 | 0.153 | |
| 14. | DPH LLHP Ranipool | 4×0.248 | 0.001 | 0 | 0.0007 | |
| Total | 41.892 | 40.84 | 0.1396 | 40.7007 | ||
Source: Sikkim Statistical Profile 2011-12
District wise Installed Capacity and Energy Generation, 2008-09 to 2010-11:
| District | Name of Power House | Installed Capacity (MW) | Generation (MU) | ||||
| 2008-09 | 2009-10 | 2010-11 | 2008-09 | 2009-10 | 2010-11 | ||
| North | Meyongchu | 2×2.00 | 2×2.00 | 2×2.00 | 5.71 | 5.52 | 6.589 |
| Rabomchu | 2×1.50 | 2×1.50 | 2×1.50 | 5.13 | 3.01 | 3.522 | |
| Lachung Stage-II | 2×0.10 | 2×0.10 | 2×0.10 | 0 | 0 | 1.025 | |
| Chaten | 2×0.50 | 2×0.50 | 2×0.50 | 0 | 0 | 0 | |
| East | Rongnichu | 2×0.50 | 2×0.50 | 2×0.50 | 0.46 | 2.17 | 0.854 |
| URHP | 4×2.00 | 4×2.00 | 4×2.00 | 0 | 0 | 0 | |
| JPH | 6×0.35 | 6×0.35 | 6×0.35 | 0.74 | 3.55 | 3.163 | |
| LLHP | 2×6.00 | 2×6.00 | 2×6.00 | 35.99 | 24.277 | 24.195 | |
| DPH, LLHP, Ranipool | 4×0.248 | 4×0.248 | 4×0.248 | 0 | 0 | 0.001 | |
| DPH, Gangtok | 4×1.00 | 4×1.00 | 4×1.00 | 0 | 0 | 0.153 | |
| South | Rothak | 2×0.10 | 2×0.10 | 2×0.10 | 0 | 0 | 0 |
| West | Rimbi-I | 3×0.20 | 3×0.20 | 3×0.20 | 0 | 0 | 0.165 |
| Rimbi-II | 2×0.50 | 2×0.50 | 2×0.50 | 0 | 0 | 0.415 | |
| Kalez | 2×1.00 | 2×1.00 | 2×1.00 | 0 | 0 | 0.76 | |
| Total | 41.892 | 41.892 | 41.892 | 48.03 | 38.528 | 40.84 | |
Source: Sikkim Statistical Profile 2011-12
Hydro Electric Projects Alloted to Private and Public Sector as on March, 2011:
| Sl. No | Name of the Project | Type | Agency | IC (MW) | Whether JV |
| 1. | Teesta Stage-I | ROR | Himalayan Green Energy Pvt. ltd. | 320 | Yes |
| 2. | Teesta Stage-II | ROR | Him Urja Infra Pvt. ltd. | 330 | Yes |
| 3. | Teesta stage-III | ROR | Teesta Urja Pvt. Ltd. | 1200 | Yes |
| 4. | Teesta Stage-IV | ROR | NHPC Ltd. | 520 | |
| 5. | Teesta Stage-V | ROR | NHPC Ltd. | 510 | |
| 6. | Teesta Stage-VI | ROR | Lanco Energy Pvt. Ltd. | 500 | Yes |
| 7. | Lacher HEP | ROR | NHPC Ltd. | 210 | |
| 8. | Panam HEP | ROR | Himgiri Hydra Energy Pvt. Ltd. | 300 | Yes |
| 9. | Lanchung HEP | ROR | Lanchung Power Pvt.ltd. | 99 | |
| 10. | Bhimkyong HEP | ROR | Teesta Power Pvt.Ltd. | 99 | |
| 11. | Bop HEP | ROR | Chungthang Power Pvt. Ltd | 99 | |
| 12. | Dikchu HEP | ROR | Sneha Kinetic Power Corporation | 96 | |
| 13. | Rongnichu HEP | ROR | Madhya Bharat Power Corporation | 96 | |
| 14. | Chujachen HEP | ROR | Gati Infrastructure Ltd. | 99 | Yes |
| 15. | Bhasmey HEP | ROR | Gati Infrastructure Ltd. | 51 | Yes |
| 16. | Sada Mangdar | ROR | Gati Infrastructure Ltd. | 71 | Yes |
| 17. | Lethang HEP | ROR | KHC Lethang Hydro project pvt. Ltd | 96 | Yes |
| 18. | Ting Ting HEP | ROR | T.T. Energy Pvt. Ltd. | 99 | |
| 19. | Tashiding HEP | ROR | Singa energy Pvt. Ltd. | 97 | |
| 20. | Kalez Khola-I HEP | ROR | Cosmic Infrapowergen Pvt. Ltd. | 27.5 | Yes |
| 21. | Kalez Khola-II HEP | ROR | Pentacle Power Pvt. Ltd | 54 | Yes |
| 22. | Rangit-IV HEP | ROR | Sikkim Hydro Ventures Ltd | 66 | |
| 23. | Rangit-III HEP | ROR | NHPC Ltd. | 60 | |
| 24. | Rangit-IV HEP | ROR | Jal Power Corporation Ltd | 120 | Yes |
| 25. | Jorethang Loop HEP | ROR | DANs Energy Pvt. Ltd | 96 | |
| 26. | Recu HEPh | ROR | Green lake Power dev. Ltd | 22 | |
| 27. | Nathangchu HEP | ROR | Cosmic Infrapower Gen Pvt. Ltd | 30 | Yes |
| 28. | Tsangu HEP | ROR | Cosmic Infrapowergen Pvt. Ltd. | 30 | Yes |
| 29. | Rahikyong | ROR | Sikkim Engineering Pvt. Ltd. | 25 | Yes |
Source: Sikkim Statistical Profile 2011-12
District wise Number of Consumer and Revenue Collection, 2010-11:
| District | Number of consumer | Revenue Collection (Rs. in lakhs) | |||||
| Domestic | Commercial | ||||||
| Commercial | HTS | LTIS | BS | Total | |||
| East | 34253 | 5154 | 139 | 128 | 124 | 5545 | 4327.78 |
| West | 13661 | 740 | 7 | 18 | 348 | 1113 | 131.22 |
| North | 6115 | 667 | 8 | 1 | 65 | 741 | 261.49 |
| South | 19453 | 2527 | 53 | 66 | 77 | 2723 | 654.31 |
| Total | 73482 | 9088 | 207 | 213 | 614 | 10122 | 5374.8 |
Source: Sikkim Statistical Profile 2011-12