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9 Revenue from sales and energy purchases (Tables) | 12 Months Ended
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Dec. 31, 2020
Revenue From Sales And Energy Purchases |
Schedule of sales of electricity |
|  | 12.31.20 |  | 12.31.19 |  | 12.31.18
|  | GWh |  | $ |  | GWh |  | $ |  | GWh |  | $
Sales of electricity |  |  |  |  |  |  |  |  |  |  |  |
Small demand segment: Residential use and public lighting (T1) |  | 11,600 |  | 57,356 |  | 10,768 |  | 72,579 |  | 11,482 |  | 78,952
Medium demand segment: Commercial and industrial (T2) |  | 1,341 |  | 10,544 |  | 1,549 |  | 15,975 |  | 1,668 |  | 12,658
Large demand segment (T3) |  | 3,210 |  | 19,830 |  | 3,503 |  | 31,947 |  | 3,646 |  | 23,579
Other: (Shantytowns/Wheeling system) |  | 4,028 |  | 3,112 |  | 4,154 |  | 1,431 |  | 4,376 |  | 1,379
Subtotal - Sales of electricity |  | 20,179 |  | 90,842 |  | 19,974 |  | 121,932 |  | 21,172 |  | 116,568
Other services |  |  |  |  |  |  |  |  |  |  |  |
Right of use of poles |  |  |  | 421 |  |  |  | 386 |  |  |  | 398
Connection and reconnection charges |  |  | 53 |  |  |  | 119 |  |  |  | 154
Subtotal - Other services |  |  |  | 474 |  |  |  | 505 |  |  |  | 552
Total - Revenue |  |  |  | 91,316 |  |  |  | 122,437 |  |  |  | 117,120
|  | 12.31.20 |  | 12.31.19 |  | 12.31.18
|  | GWh |  | $ |  | GWh |  | $ |  | GWh |  | $
Energy purchases (1) |  | 25,124 |  | (57,930) |  | 24,960 |  | (77,649) |  | 25,906 |  | (66,721)
(1) | As of December 31, 2020, 2019 and 2018, includes technical and non-technical energy losses for 4,945 GWh, 4,986 GWh and 4,734 GWh, respectively.

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- Definition Tabular disclosure of summary of sales of electricity. + References No definition available. + Details
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