Condition of electric grids in the Republic of Tajikistan

The paper presents a comparative analysis into the state of electric grids of the Republic of Tajikistan based on statistical data from 2000-2017. The Republic’s per capital electricity consumption in 2018 was 18.4% lower than in 2000. 76.2 of 0.4-kV OPL and 50% of 6-, 10-, 20-kV OPL rest on wooden towers. Over the past four years, 0.4- to 500-kV OPL have totally lengthened by 2.7% to 11.7% except 35-kV lines that became 12.2% shorter. Over 17 years, 6- to 35-kV high-voltage OPL on wooden towers have lost 49% to 68% in length, making the entire grid safer and more reliable. Over the past four years, whereas the 0.4- to 35-kV HV lines have become 5.6% longer, the share of wooden towers dropped by 14.04%; 0.4-kV cable lines gained 48.2% in length, whereas 6- to 10-kV lines have gained 24.8% in length. HV OPL and CL were graded as good, satisfactory, or non-satisfactory, with 23.5% of 0.4 kV OPL and 20.56% of 6- to 10-kV lines being found non-satisfactory, which requires intervention for safety and prevention of accidents. The paper also reports on how the grid evolved in 1970-2017.